diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60dab789..d1573b4b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [5.0.0](https://github.com/Okipa/laravel-bootstrap-components/compare/4.0.0...5.0.0)
+
+2020-12-02
+
+* Added Livewire support
+* Added named validation bag support
+* Templates updated
+* Methods signature update
+* Components default config update
+
+:point_right: [See the upgrade guide](/docs/upgrade-guides/from-v4-to-v5.md)
+
 ## [4.0.0](https://github.com/Okipa/laravel-bootstrap-components/compare/3.0.3...4.0.0)
 
 2020-11-14
@@ -40,6 +52,8 @@
 * Dropped Laravel 5.8 and 6.0 support
 * Dropped PHP 7.2 and 7.3 support
 
+:point_right: [See the upgrade guide](/docs/upgrade-guides/from-v2-to-v3.md)
+
 ## [2.2.3](https://github.com/Okipa/laravel-bootstrap-components/compare/2.2.2...2.2.3)
 
 2020-07-16
diff --git a/README.md b/README.md
index 30da35df..bb8488ac 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@
     </a>
 </p>
 
-Save time and take advantage of an extended set of ready-to-use and fully customizable bootstrap form components.
+Save time and take advantage of a set of dynamical, ready-to-use and fully customizable bootstrap form components.
 
 Found this package helpful? Please consider supporting my work!
 
@@ -35,7 +35,9 @@ Found this package helpful? Please consider supporting my work!
 
 ## Upgrade guide
 
+* [From V4 to V5](/docs/upgrade-guides/from-v4-to-v5.md)
 * [From V3 to V4](/docs/upgrade-guides/from-v3-to-v4.md)
+* [From V2 to V3](/docs/upgrade-guides/from-v2-to-v3.md)
 * [From V1 to V2](/docs/upgrade-guides/from-v1-to-v2.md)
 
 ## Usage
@@ -82,10 +84,10 @@ And get this HTML generated for you:
 Call this component in your view:
 
 ```blade
-{{-- helper style --}}
+{{-- Helper style --}}
 {{ inputText()->name('title')->localized(['fr', 'en']) }}
 
-{{-- facade style --}}
+{{-- Facade style --}}
 {{ InputText::name('title')->localized(['fr', 'en']) }}
 ```
 
diff --git a/composer.json b/composer.json
index de529853..d4d11375 100644
--- a/composer.json
+++ b/composer.json
@@ -31,7 +31,7 @@
     "require-dev": {
         "nunomaduro/larastan": "^0.6",
         "orchestra/testbench": "^5.0||^6.0",
-        "phpmd/phpmd": "^2.8",
+        "phpmd/phpmd": "^2.9",
         "squizlabs/php_codesniffer": "^3.5"
     },
     "autoload": {
diff --git a/docs/api/components.md b/docs/api/components.md
index 69cc56ae..e1bdec9f 100644
--- a/docs/api/components.md
+++ b/docs/api/components.md
@@ -2,7 +2,7 @@
 
 * [Form components](#form-components)
   * [Input text](#input-text)
-  * [Input e-mail](#input-e-mail)
+  * [Input email](#input-email)
   * [Input password](#input-password)
   * [Input URL](#input-url)
   * [Input tel](#input-tel)
@@ -49,7 +49,7 @@
 * Display success : `config('bootstrap-components.form.formValidation.displaySuccess')`
 * Display failure : `config('bootstrap-components.form.formValidation.displayFailure')`
 
-## Input e-mail
+## Input email
 
 **Type :** [FormAbstract](./types.md#formabstract)
 
@@ -61,6 +61,7 @@
 
 * Prepend : `<i class="fas fa-at"></i>`
 * Label positioned above : `config('bootstrap-components.form.labelPositionedAbove')`
+* Component HTML attributes: `autocomplete="on"`
 * Container classes : : `form-group`
 * Display success : `config('bootstrap-components.form.formValidation.displaySuccess')`
 * Display failure : `config('bootstrap-components.form.formValidation.displayFailure')`
@@ -77,6 +78,7 @@
 
 * Prepend : `<i class="fas fa-user-secret"></i>`
 * Label positioned above : `config('bootstrap-components.form.labelPositionedAbove')`
+* Component HTML attributes: `autocomplete="on"`
 * Container classes : : `form-group`
 * Display success : `config('bootstrap-components.form.formValidation.displaySuccess')`
 * Display failure : `config('bootstrap-components.form.formValidation.displayFailure')`
@@ -109,6 +111,7 @@
 
 * Prepend : `<i class="fas fa-phone"></i>`
 * Label positioned above : `config('bootstrap-components.form.labelPositionedAbove')`
+* Component HTML attributes: `autocomplete="on"`
 * Container classes : : `form-group`
 * Display success : `config('bootstrap-components.form.formValidation.displaySuccess')`
 * Display failure : `config('bootstrap-components.form.formValidation.displayFailure')`
diff --git a/docs/api/types.md b/docs/api/types.md
index f9bb15b9..b0a53905 100644
--- a/docs/api/types.md
+++ b/docs/api/types.md
@@ -21,20 +21,20 @@
 |---|---|---|
 | containerId(string $containerId): self | No | Set the component container id. |
 | componentId(string $componentId): self | No | Set the component id. |
-| containerClasses(array $containerClasses): self | No | Set the component container classes. |
-| componentClasses(array $componentClasses): self | No | Set the component classes. |
-| containerHtmlAttributes(array $containerHtmlAttributes): self | No | Set the component container HTML attributes. |
-| componentHtmlAttributes(array $componentHtmlAttributes): self | No | Set the component HTML attributes. |
+| componentClasses(array $componentClasses): self | No | The given HTML classes will replace the component default ones. You can activate the merge mode in order to add the given classes to the default ones by setting the second argument to `true`. |
+| containerClasses(array $containerClasses): self | No | The given HTML classes will replace the component default ones. You can activate the merge mode in order to add the given classes to the default ones by setting the second argument to `true`. |
+| componentHtmlAttributes(array $componentHtmlAttributes): self | No | The given HTML attributes will replace the component default ones. You can activate the merge mode in order to add the given attributes to the default ones by setting the second argument to `true`. |
+| containerHtmlAttributes(array $containerHtmlAttributes): self | No | The given HTML attributes will replace the component default ones. You can activate the merge mode in order to add the given attributes to the default ones by setting the second argument to `true`. |
 
 **Usage**
 
 ```php
 <ComponentAbstract>
     ->containerId('container-id')
-    ->componentId('component-id')
     ->containerClasses(['container', 'classes'])
-    ->componentClasses(['component', 'classes'])
     ->containerHtmlAttributes(['container', 'html', 'attributes'])
+    ->componentId('component-id')
+    ->componentClasses(['component', 'classes'])
     ->componentHtmlAttributes(['component', 'html', 'attributes']);
 ```
 
@@ -57,6 +57,7 @@
 | caption(?string $caption): self | No | Set the component caption. |
 | displaySuccess(?bool $displaySuccess = true): self | No | Set the component input validation success display status. |
 | displayFailure(?bool $displayFailure = true): self | No | Set the component input validation failure display status. |
+| errorBag(string $errorBag): self | No | Define the name of the error bag that will contain the error related to this input. By default, the Laravel error bag is `default`. |
 
 **Usage**
 
@@ -70,15 +71,16 @@
     ->append('<i class="fas fa-hand-pointer"></i>')
     ->label('Email')
     ->labelPositionedAbove()
-    ->placeholder('Set your e-mail')
-    ->caption('Set your caption here.')
+    ->placeholder('Set your email')
+    ->caption('Your email will tested against to RFC, DNS and spoof checks.')
     ->displaySuccess(false)
-    ->displayFailure(false);
+    ->displayFailure(false)
+    ->errorBag('profileUpdate');
 ```
 
 **Components**
 
-* [Input e-mail](./components.md#input-e-mail)
+* [Input email](./components.md#input-email)
 * [Input password](./components.md#input-password)
 * [Input URL](./components.md#input-url)
 * [Input tel](./components.md#input-tel)
@@ -120,15 +122,9 @@
 <MultilingualAbstract>
     // inherits FormAbstract methods
     ->locales(['fr', 'en'])
-    ->value(function(string $locale){
-        return $name[$locale];
-    });
-    ->prepend(function(string $locale){
-        return 'prepend-' . $locale;
-    })
-    ->append(function(string $locale){
-        return 'append-' . $locale;
-    }) 
+    ->value(fn(string $locale) => $name[$locale]);
+    ->prepend(fn(string $locale) => 'prepend-' . $locale)
+    ->append(fn(string $locale) => 'append-' . $locale) 
 ```
 
 **Components**
@@ -176,9 +172,7 @@
 ```php
 <UploadableAbstract>
     // inherits FormAbstract methods
-    ->uploadedFile(function(){
-        return '<div>Some HTML</div>';
-    })
+    ->uploadedFile(fn() => '<div>Some HTML</div>')
     ->showRemoveCheckbox(true, 'Remove this file');
 ```
 
@@ -242,9 +236,7 @@
     ]), 'id', 'title')
     ->selected('id', 1)
     // or ->selected('id', [1]) in multiple mode
-    ->disabled(function(array $option){
-        return ! $option['active'];
-    })
+    ->disabled(fn(array $option) => ! $option['active'])
     ->multiple();
 ```
 
diff --git a/docs/upgrade-guides/from-v2-to-v3.md b/docs/upgrade-guides/from-v2-to-v3.md
new file mode 100644
index 00000000..ca7f6fa9
--- /dev/null
+++ b/docs/upgrade-guides/from-v2-to-v3.md
@@ -0,0 +1,19 @@
+# Upgrade from v2 to v3
+
+Follow the steps below to upgrade the package.
+
+## Laravel and PHP old version support drop
+
+Whereas Laravel 8 is now supported by this package, support for any version before Laravel 7 has been dropped.
+
+Support for any version before PHP 7.4 has also been dropped.
+
+As so, you should upgrade your Laravel and PHP versions in order upgrade to V3.
+
+## See all changes
+
+See all change with the [comparison tool](https://github.com/Okipa/laravel-bootstrap-components/compare/2.2.3...3.0.0).
+
+## Undocumented changes
+
+If you see any forgotten and undocumented change, please submit a PR to add them to this upgrade guide.
diff --git a/docs/upgrade-guides/from-v4-to-v5.md b/docs/upgrade-guides/from-v4-to-v5.md
new file mode 100644
index 00000000..18b03a1e
--- /dev/null
+++ b/docs/upgrade-guides/from-v4-to-v5.md
@@ -0,0 +1,67 @@
+# Upgrade from v4 to v5
+
+Follow the steps below to upgrade the package.
+
+## Livewire support
+
+There was an issue preventing the error message and the validation class to be displayed on form components when they were used into a livewire component.
+
+This was related to the fact the session was used to detect errors, which can't work with livewire as the `$errors` variable is passed in the blade view on re-rendering.
+
+This has been fixed and the error message + the validation class are now generated from the `$errors` variable given in the view instead of the session.
+
+## Templates updated
+
+Related to the previous point (Livewire support added), the view templates provided with this package have been updated.
+
+If you have published the views in order to make some customizations, you will have to [re-publish them](../../README.md#templates) and to redo your customizations.
+
+## Named validation bag support
+
+All form components can now correctly display validation class and error message when using a named validation bag.
+
+If you validate an email this way:
+
+```php
+Validator::make(
+    ['email' => 'spoof@email.test']
+    ['email' => ['required', 'string', 'email:rfc,dns,spoof']],
+])->validateWithBag('profileUpdate');
+```
+
+The `is-invalid` validation class and the input related error message will correctly will be displayed when the form will be submitted with:
+
+```blade
+{{ inputEmail()->name('email')->errorBag('profileUpdate') }}
+```
+
+## Methods signature update
+
+The following methods have gained the ability to merge given HTML classes or HTML attributes to the component default ones instead of replacing them.
+
+To use this new behaviour, you'll just have to set the second `$mergeMode` boolean attribute to `true`.
+
+* All components: `componentClasses`
+* All components: `containerClasses`
+* All components: `componentHtmlAttributes`
+* All components: `containerHtmlAttributes`
+* Image component: `linkClasses`
+* Image component: `linkHtmlAttributes`
+
+For example, using `inputText()->name('name')->componentClasses(['merged', 'classes'], true)` will append the `merged classes` classes to the ones defined by default on the input text component.
+
+## Components default config update
+
+The `autocomplete="on"` HTML attribute has been added in the default configuration of the following components, in order to improve the default behavior (see https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/autocomplete):
+
+* Input email component
+* Input password component
+* Input url component
+
+## See all changes
+
+See all change with the [comparison tool](https://github.com/Okipa/laravel-bootstrap-components/compare/4.0.0...5.0.0).
+
+## Undocumented changes
+
+If you see any forgotten and undocumented change, please submit a PR to add them to this upgrade guide.
diff --git a/resources/views/bootstrap-components/form/checkbox.blade.php b/resources/views/bootstrap-components/form/checkbox.blade.php
index 264034c7..ca08dc3f 100644
--- a/resources/views/bootstrap-components/form/checkbox.blade.php
+++ b/resources/views/bootstrap-components/form/checkbox.blade.php
@@ -1,5 +1,5 @@
 <div{{ html_attributes($containerId ? ['id' => $containerId] : null) }}{{ html_classes('component-container', 'custom-control', 'custom-' . $type, $containerClasses) }}{{ html_attributes($containerHtmlAttributes) }}>
-    <input id="{{ $componentId }}"{{ html_classes('component', 'custom-control-input', $componentClasses, $validationClass) }} type="checkbox" name="{{ $name }}"{{ html_attributes($componentHtmlAttributes) }}>
+    <input id="{{ $componentId }}"{{ html_classes('component', 'custom-control-input', $componentClasses, $validationClass($errors ?? null)) }} type="checkbox" name="{{ $name }}"{{ html_attributes($componentHtmlAttributes) }}>
     <label class="custom-control-label" for="{{ $componentId }}">@if(! empty($prepend))<span class="label-prepend">{!! $prepend !!}</span> @endif{{ $label }}@if(! empty($append))<span class="label-append">{!! $append !!}</span> @endif</label>
     @include('bootstrap-components::bootstrap-components.partials.validation-feedback')
     @include('bootstrap-components::bootstrap-components.partials.caption')
diff --git a/resources/views/bootstrap-components/form/file.blade.php b/resources/views/bootstrap-components/form/file.blade.php
index fa45ef09..9e085351 100644
--- a/resources/views/bootstrap-components/form/file.blade.php
+++ b/resources/views/bootstrap-components/form/file.blade.php
@@ -13,8 +13,8 @@
     @endif
         @include('bootstrap-components::bootstrap-components.partials.prepend')
         <div class="custom-file">
-            <input id="{{ $componentId }}"{{ html_classes('component', 'form-control', 'custom-file-input', $componentClasses, $validationClass) }} type="{{ $type }}" name="{{ $name }}"{{ html_attributes($componentHtmlAttributes) }}>
-            @if(($value = old($name, $value)) || $placeholder)
+            <input id="{{ $componentId }}"{{ html_classes('component', 'form-control', 'custom-file-input', $componentClasses, $validationClass($errors ?? null)) }} type="{{ $type }}" name="{{ $name }}"{{ html_attributes($componentHtmlAttributes) }}>
+            @if($placeholder || ($value = old($name, $value)))
                 <label class="custom-file-label" for="{{ $componentId }}">@if(isset($value) && $value !== ''){{ $value }}@else{{ $placeholder }}@endempty</label>
             @endif
         </div>
diff --git a/resources/views/bootstrap-components/form/input.blade.php b/resources/views/bootstrap-components/form/input.blade.php
index 800f0ba7..d158f4de 100644
--- a/resources/views/bootstrap-components/form/input.blade.php
+++ b/resources/views/bootstrap-components/form/input.blade.php
@@ -1,19 +1,19 @@
 <div{{ html_attributes($containerId ? ['id' => $containerId] : null) }}{{ html_classes('component-container', $containerClasses) }}{{ html_attributes($containerHtmlAttributes) }}>
-@if($labelPositionedAbove)
-    @include('bootstrap-components::bootstrap-components.partials.label')
-@endif
-@if(! empty($prepend) || ! empty($append))
-    <div class="input-group">
-@endif
+    @if($labelPositionedAbove)
+        @include('bootstrap-components::bootstrap-components.partials.label')
+    @endif
+    @if(! empty($prepend) || ! empty($append))
+        <div class="input-group">
+    @endif
         @include('bootstrap-components::bootstrap-components.partials.prepend')
-        <input id="{{ $componentId }}"{{ html_classes('component', 'form-control', $componentClasses, $validationClass) }} type="{{ $type }}" name="{{ $name }}" value="{{ old($name, $value) }}"{{ html_attributes($placeholder ? ['placeholder' => $placeholder] : null, $componentHtmlAttributes) }}>
+        <input id="{{ $componentId }}"{{ html_classes('component', 'form-control', $componentClasses, $validationClass($errors ?? null, $locale ?? null)) }} type="{{ $type }}" name="{{ $name }}" value="{{ old($name, $value) }}"{{ html_attributes($placeholder ? ['placeholder' => $placeholder] : null, $componentHtmlAttributes) }}>
         @include('bootstrap-components::bootstrap-components.partials.append')
         @include('bootstrap-components::bootstrap-components.partials.validation-feedback')
-@if(! empty($prepend) || ! empty($append))
-    </div>
-@endif
-@unless($labelPositionedAbove)
-    @include('bootstrap-components::bootstrap-components.partials.label')
-@endunless
-@include('bootstrap-components::bootstrap-components.partials.caption')
+    @if(! empty($prepend) || ! empty($append))
+        </div>
+    @endif
+    @unless($labelPositionedAbove)
+        @include('bootstrap-components::bootstrap-components.partials.label')
+    @endunless
+    @include('bootstrap-components::bootstrap-components.partials.caption')
 </div>
diff --git a/resources/views/bootstrap-components/form/radio.blade.php b/resources/views/bootstrap-components/form/radio.blade.php
index 7ad16059..687662f4 100644
--- a/resources/views/bootstrap-components/form/radio.blade.php
+++ b/resources/views/bootstrap-components/form/radio.blade.php
@@ -1,5 +1,5 @@
 <div{{ html_attributes($containerId ? ['id' => $containerId] : null) }}{{ html_classes('component-container', 'custom-control', 'custom-radio', $containerClasses) }}{{ html_attributes($containerHtmlAttributes) }}>
-    <input id="{{ $componentId }}"{{ html_classes('component', 'custom-control-input', $componentClasses, $validationClass) }} type="{{ $type }}" name="{{ $name }}" value="{{ $value }}"{{ html_attributes($componentHtmlAttributes) }}>
+    <input id="{{ $componentId }}"{{ html_classes('component', 'custom-control-input', $componentClasses, $validationClass($errors ?? null)) }} type="{{ $type }}" name="{{ $name }}" value="{{ $value }}"{{ html_attributes($componentHtmlAttributes) }}>
     <label class="custom-control-label" for="{{ $componentId }}">@if(! empty($prepend))<span class="label-prepend">{!! $prepend !!}</span> @endif{{ $label }}@if(! empty($append))<span class="label-append">{!! $append !!}</span> @endif</label>
     @include('bootstrap-components::bootstrap-components.partials.validation-feedback')
     @include('bootstrap-components::bootstrap-components.partials.caption')
diff --git a/resources/views/bootstrap-components/form/select.blade.php b/resources/views/bootstrap-components/form/select.blade.php
index b17de6e1..97cbb127 100644
--- a/resources/views/bootstrap-components/form/select.blade.php
+++ b/resources/views/bootstrap-components/form/select.blade.php
@@ -6,7 +6,7 @@
         <div class="input-group">
     @endif
         @include('bootstrap-components::bootstrap-components.partials.prepend')
-        <select id="{{ $componentId }}"{{ html_classes('component', 'custom-select', $componentClasses, $validationClass) }} name="{{ $name . ($multiple ? '[]' : '') }}"{{ html_attributes($multiple ? 'multiple' : null, $componentHtmlAttributes) }}>
+        <select id="{{ $componentId }}"{{ html_classes('component', 'custom-select', $componentClasses, $validationClass($errors ?? null)) }} name="{{ $name . ($multiple ? '[]' : '') }}"{{ html_attributes($multiple ? 'multiple' : null, $componentHtmlAttributes) }}>
             @if($placeholder)
                 <option value=""{{ html_attributes(count(array_filter(Arr::pluck($options, 'selected'))) ? null : ['selected' => 'selected']) }}>{{ $placeholder }}</option>
             @endif
diff --git a/resources/views/bootstrap-components/form/textarea.blade.php b/resources/views/bootstrap-components/form/textarea.blade.php
index fe63760b..b3da217c 100644
--- a/resources/views/bootstrap-components/form/textarea.blade.php
+++ b/resources/views/bootstrap-components/form/textarea.blade.php
@@ -6,7 +6,7 @@
         <div class="input-group">
     @endif
         @include('bootstrap-components::bootstrap-components.partials.prepend')
-        <textarea id="{{ $componentId }}"{{ html_classes('component', 'form-control', $componentClasses, $validationClass) }} name="{{ $name }}"{{ html_attributes($placeholder ? ['placeholder' => $placeholder] : null, $componentHtmlAttributes) }}>{{ old($name, $value) }}</textarea>
+        <textarea id="{{ $componentId }}"{{ html_classes('component', 'form-control', $componentClasses, $validationClass($errors ?? null, $locale ?? null)) }} name="{{ $name }}"{{ html_attributes($placeholder ? ['placeholder' => $placeholder] : null, $componentHtmlAttributes) }}>{{ old($name, $value) }}</textarea>
         @include('bootstrap-components::bootstrap-components.partials.append')
         @include('bootstrap-components::bootstrap-components.partials.validation-feedback')
     @if(! empty($prepend) || ! empty($append))
diff --git a/resources/views/bootstrap-components/partials/validation-feedback.blade.php b/resources/views/bootstrap-components/partials/validation-feedback.blade.php
index 5c005353..75873b32 100644
--- a/resources/views/bootstrap-components/partials/validation-feedback.blade.php
+++ b/resources/views/bootstrap-components/partials/validation-feedback.blade.php
@@ -1,11 +1,9 @@
-@isset($errors)
-    @if($errorMessage && $displayFailure)
-        <div class="invalid-feedback d-block">
-            {!! $errorMessage !!}
-        </div>
-    @elseif($displaySuccess)
-        <div class="valid-feedback d-block">
-            @lang('Field correctly filled.')
-        </div>
-    @endif
-@endisset
+@if($errorMessage = $errorMessage($errors ?? null, $locale ?? null))
+    <div class="invalid-feedback d-block">
+        {!! $errorMessage !!}
+    </div>
+@elseif($successMessage = $successMessage())
+    <div class="valid-feedback d-block">
+        {!! $successMessage !!}
+    </div>
+@endif
diff --git a/src/Components/Buttons/Abstracts/ButtonAbstract.php b/src/Components/Buttons/Abstracts/ButtonAbstract.php
index ef476d0c..5170342f 100644
--- a/src/Components/Buttons/Abstracts/ButtonAbstract.php
+++ b/src/Components/Buttons/Abstracts/ButtonAbstract.php
@@ -26,11 +26,9 @@ public function route(string $route, array $params = []): self
         return $this;
     }
 
-    protected function getParameters(): array
+    protected function getViewParams(): array
     {
-        $url = $this->getUrl();
-
-        return array_merge(parent::getParameters(), compact('url'));
+        return array_merge(parent::getViewParams(), ['url' => $this->getUrl()]);
     }
 
     protected function getUrl(): ?string
diff --git a/src/Components/Buttons/Abstracts/SubmitAbstract.php b/src/Components/Buttons/Abstracts/SubmitAbstract.php
index 32b49540..883d99c8 100644
--- a/src/Components/Buttons/Abstracts/SubmitAbstract.php
+++ b/src/Components/Buttons/Abstracts/SubmitAbstract.php
@@ -41,20 +41,15 @@ public function label(?string $label): self
         return $this;
     }
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        return array_merge(parent::getValues(), $this->getParameters());
-    }
-
-    protected function getParameters(): array
-    {
-        $type = $this->getType();
-        $url = null;
-        $prepend = $this->getPrepend();
-        $append = $this->getAppend();
-        $label = $this->getLabel();
-
-        return compact('type', 'url', 'prepend', 'append', 'label');
+        return array_merge(parent::getViewParams(), [
+            'type' => $this->getType(),
+            'url' => $this->getType(),
+            'prepend' => $this->getPrepend(),
+            'append' => $this->getAppend(),
+            'label' => $this->getLabel(),
+        ]);
     }
 
     protected function getPrepend(): ?string
diff --git a/src/Components/ComponentAbstract.php b/src/Components/ComponentAbstract.php
index 4cadf70b..98770ff4 100644
--- a/src/Components/ComponentAbstract.php
+++ b/src/Components/ComponentAbstract.php
@@ -26,24 +26,36 @@ public function __construct()
     {
         $this->type = $this->setType();
         $this->view = $this->setView();
-        $this->componentClasses = $this->setComponentClasses();
-        $this->componentHtmlAttributes = $this->setComponentHtmlAttributes();
         $this->containerClasses = $this->setContainerClasses();
         $this->containerHtmlAttributes = $this->setContainerHtmlAttributes();
+        $this->componentClasses = $this->setComponentClasses();
+        $this->componentHtmlAttributes = $this->setComponentHtmlAttributes();
     }
 
-    public function componentId(string $componentId): self
+    /**
+     * @return string
+     * @throws \Throwable
+     */
+    public function toHtml(): string
     {
-        $this->componentId = $componentId;
-
-        return $this;
+        return $this->render();
     }
 
-    public function componentClasses(array $componentClasses): self
+    /**
+     * @param array $extraData
+     *
+     * @return string
+     * @throws \Throwable
+     */
+    public function render(array $extraData = []): string
     {
-        $this->componentClasses = $componentClasses;
+        $this->checkValuesValidity();
+        $view = $this->getView();
+        $html = $view
+            ? (string) view('bootstrap-components::' . $view, array_merge($this->getViewParams(), $extraData))->render()
+            : '';
 
-        return $this;
+        return trim($html);
     }
 
     public function containerId(string $containerId): self
@@ -53,58 +65,47 @@ public function containerId(string $containerId): self
         return $this;
     }
 
-    /**
-     * Set the component container classes.
-     *
-     * @param array $containerClasses
-     *
-     * @return $this
-     */
-    public function containerClasses(array $containerClasses): self
+    public function componentId(string $componentId): self
     {
-        $this->containerClasses = $containerClasses;
+        $this->componentId = $componentId;
 
         return $this;
     }
 
-    public function componentHtmlAttributes(array $componentHtmlAttributes): self
+    public function componentClasses(array $componentClasses, bool $mergeMode = false): self
     {
-        $this->componentHtmlAttributes = $componentHtmlAttributes;
+        $this->componentClasses = $mergeMode
+            ? array_merge($this->componentClasses, $componentClasses)
+            : $componentClasses;
 
         return $this;
     }
 
-    public function containerHtmlAttributes(array $containerHtmlAttributes): self
+    public function containerClasses(array $containerClasses, bool $mergeMode = false): self
     {
-        $this->containerHtmlAttributes = $containerHtmlAttributes;
+        $this->containerClasses = $mergeMode
+            ? array_merge($this->containerClasses, $containerClasses)
+            : $containerClasses;
 
         return $this;
     }
 
-    /**
-     * @return string
-     * @throws \Throwable
-     */
-    public function toHtml(): string
+    public function componentHtmlAttributes(array $componentHtmlAttributes, bool $mergeMode = false): self
     {
-        return $this->render();
+        $this->componentHtmlAttributes = $mergeMode
+            ? array_merge($this->componentHtmlAttributes, $componentHtmlAttributes)
+            : $componentHtmlAttributes;
+
+        return $this;
     }
 
-    /**
-     * @param array $extraData
-     *
-     * @return string
-     * @throws \Throwable
-     */
-    public function render(array $extraData = []): string
+    public function containerHtmlAttributes(array $containerHtmlAttributes, bool $mergeMode = false): self
     {
-        $this->checkValuesValidity();
-        $view = $this->getView();
-        $html = $view
-            ? (string) view('bootstrap-components::' . $view, array_merge($this->getValues(), $extraData))->render()
-            : '';
+        $this->containerHtmlAttributes = $mergeMode
+            ? array_merge($this->containerHtmlAttributes, $containerHtmlAttributes)
+            : $containerHtmlAttributes;
 
-        return trim($html);
+        return $this;
     }
 
     abstract protected function checkValuesValidity(): void;
@@ -116,23 +117,21 @@ protected function getView(): string
 
     abstract protected function setView(): string;
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        $componentId = $this->getComponentId();
-        $containerId = $this->getContainerId();
-        $componentClasses = $this->getComponentClasses();
-        $containerClasses = $this->getContainerClasses();
-        $componentHtmlAttributes = $this->getComponentHtmlAttributes();
-        $containerHtmlAttributes = $this->getContainerHtmlAttributes();
+        return [
+            'containerId' => $this->getContainerId(),
+            'containerClasses' => $this->getContainerClasses(),
+            'containerHtmlAttributes' => $this->getContainerHtmlAttributes(),
+            'componentId' => $this->getComponentId(),
+            'componentClasses' => $this->getComponentClasses(),
+            'componentHtmlAttributes' => $this->getComponentHtmlAttributes(),
+        ];
+    }
 
-        return compact(
-            'componentId',
-            'containerId',
-            'componentClasses',
-            'containerClasses',
-            'componentHtmlAttributes',
-            'containerHtmlAttributes'
-        );
+    protected function getContainerId(): ?string
+    {
+        return $this->containerId;
     }
 
     protected function getComponentId(): ?string
@@ -140,11 +139,13 @@ protected function getComponentId(): ?string
         return $this->componentId;
     }
 
-    protected function getContainerId(): ?string
+    protected function getContainerClasses(): array
     {
-        return $this->containerId;
+        return $this->containerClasses;
     }
 
+    abstract protected function setContainerClasses(): array;
+
     protected function getComponentClasses(): array
     {
         return $this->componentClasses;
@@ -152,12 +153,12 @@ protected function getComponentClasses(): array
 
     abstract protected function setComponentClasses(): array;
 
-    protected function getContainerClasses(): array
+    protected function getContainerHtmlAttributes(): array
     {
-        return $this->containerClasses;
+        return $this->containerHtmlAttributes;
     }
 
-    abstract protected function setContainerClasses(): array;
+    abstract protected function setContainerHtmlAttributes(): array;
 
     protected function getComponentHtmlAttributes(): array
     {
@@ -166,13 +167,6 @@ protected function getComponentHtmlAttributes(): array
 
     abstract protected function setComponentHtmlAttributes(): array;
 
-    protected function getContainerHtmlAttributes(): array
-    {
-        return $this->containerHtmlAttributes;
-    }
-
-    abstract protected function setContainerHtmlAttributes(): array;
-
     protected function getType(): string
     {
         return $this->type;
diff --git a/src/Components/Form/Abstracts/CheckableAbstract.php b/src/Components/Form/Abstracts/CheckableAbstract.php
index b921d57a..30d7b782 100644
--- a/src/Components/Form/Abstracts/CheckableAbstract.php
+++ b/src/Components/Form/Abstracts/CheckableAbstract.php
@@ -15,18 +15,28 @@ public function checked(bool $checked = true): self
 
     protected function setLabelPositionedAbove(): bool
     {
-        return true; // Unused for checkable components.
+        // Setting `true` but this property will not be used for checkable components.
+        return true;
     }
 
     protected function getComponentHtmlAttributes(): array
     {
-        return array_merge(parent::getComponentHtmlAttributes(), $this->getChecked() ? ['checked' => 'checked'] : []);
+        return array_merge($this->componentHtmlAttributes, $this->getChecked() ? ['checked' => 'checked'] : []);
     }
 
     protected function getChecked(): bool
     {
-        $old = old($this->convertArrayNameInNotation());
-
-        return $old ?? $this->checked ?? (bool) (optional($this->model)->{$this->getName()} ?: $this->value);
+        $oldChecked = old($this->convertArrayNameInNotation());
+        if (isset($oldChecked)) {
+            return $oldChecked;
+        }
+        if (isset($this->checked)) {
+            return $this->checked;
+        }
+        if (isset($this->value)) {
+            return (bool) $this->value;
+        }
+
+        return (bool) optional($this->model)->{$this->getName()};
     }
 }
diff --git a/src/Components/Form/Abstracts/FormAbstract.php b/src/Components/Form/Abstracts/FormAbstract.php
index 7afcd78a..e6eae8cb 100644
--- a/src/Components/Form/Abstracts/FormAbstract.php
+++ b/src/Components/Form/Abstracts/FormAbstract.php
@@ -4,7 +4,9 @@
 
 use Closure;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\MessageBag;
 use Illuminate\Support\Str;
+use Illuminate\Support\ViewErrorBag;
 use Okipa\LaravelBootstrapComponents\Components\ComponentAbstract;
 use Okipa\LaravelBootstrapComponents\Components\Form\Traits\FormValidityChecks;
 
@@ -12,6 +14,9 @@ abstract class FormAbstract extends ComponentAbstract
 {
     use FormValidityChecks;
 
+    /** @property mixed $value */
+    protected $value;
+
     protected ?Model $model = null;
 
     protected string $name;
@@ -30,15 +35,14 @@ abstract class FormAbstract extends ComponentAbstract
 
     protected bool $labelPositionedAbove;
 
-    /** @property mixed $value */
-    protected $value;
-
-    protected ?string $placeholder;
+    protected ?string $placeholder = null;
 
     protected bool $displaySuccess;
 
     protected bool $displayFailure;
 
+    protected string $errorBag = 'default';
+
     public function __construct()
     {
         parent::__construct();
@@ -102,6 +106,11 @@ public function placeholder(?string $placeholder): self
         return $this;
     }
 
+    /**
+     * @param mixed $value
+     *
+     * @return $this
+     */
     public function value($value): self
     {
         $this->value = $value;
@@ -138,93 +147,95 @@ public function displayFailure(bool $displayFailure = true): self
         return $this;
     }
 
-    protected function getValues(): array
+    public function errorBag(string $errorBag): self
     {
-        return array_merge(parent::getValues(), $this->getParameters());
+        $this->errorBag = $errorBag;
+
+        return $this;
     }
 
-    protected function getParameters(): array
+    protected function getViewParams(): array
     {
-        $model = $this->getModel();
-        $type = $this->getType();
-        $name = $this->getName();
-        $prepend = $this->getPrepend();
-        $append = $this->getAppend();
-        $caption = $this->getCaption();
-        $label = $this->getLabel();
-        $labelPositionedAbove = $this->getLabelPositionedAbove();
-        $value = $this->getValue();
-        $placeholder = $this->getPlaceholder();
-        $displaySuccess = $this->getDisplaySuccess();
-        $displayFailure = $this->getDisplayFailure();
-        $validationClass = $this->getValidationClass();
-        $errorMessage = $this->getErrorMessage();
-
-        return compact(
-            'model',
-            'type',
-            'name',
-            'prepend',
-            'append',
-            'caption',
-            'label',
-            'labelPositionedAbove',
-            'value',
-            'placeholder',
-            'displaySuccess',
-            'displayFailure',
-            'validationClass',
-            'errorMessage'
-        );
+        return array_merge(parent::getViewParams(), [
+            'validationClass' => fn(?ViewErrorBag $errors) => $this->getValidationClass($errors),
+            'errorMessage' => fn(?ViewErrorBag $errors) => $this->getErrorMessage($errors),
+            'successMessage' => fn() => $this->getSuccessMessage(),
+            'labelPositionedAbove' => $this->getLabelPositionedAbove(),
+            'label' => $this->getLabel(),
+            'type' => $this->getType(),
+            'name' => $this->getName(),
+            'value' => $this->getValue(),
+            'placeholder' => $this->getPlaceholder(),
+            'prepend' => $this->getPrepend(),
+            'append' => $this->getAppend(),
+            'caption' => $this->getCaption(),
+        ]);
     }
 
-    protected function getModel(): ?Model
+    protected function getValidationClass(?ViewErrorBag $errors): ?string
     {
-        return $this->model;
+        if (! $errors) {
+            return null;
+        }
+        if ($this->getErrorMessageBag($errors)->isEmpty()) {
+            return null;
+        }
+        if ($this->getErrorMessageBag($errors)->has($this->convertArrayNameInNotation())) {
+            return $this->getDisplayFailure() ? 'is-invalid' : null;
+        }
+
+        // Only highlight valid fields if there are invalid fields.
+        return $this->getDisplaySuccess() ? 'is-valid' : null;
     }
 
-    protected function getName(): string
+    protected function getErrorMessageBag(ViewErrorBag $errors): MessageBag
     {
-        return $this->name ?? '';
+        return $errors->{$this->errorBag};
     }
 
-    protected function getPrepend(): ?string
+    protected function convertArrayNameInNotation(string $notation = '.'): string
     {
-        $prepend = $this->prepend;
-
-        // Fallback for usage of closure with multilingual disabled.
-        return $prepend instanceof Closure ? $prepend(app()->getLocale()) : $prepend;
+        return str_replace(['[', ']'], [$notation, ''], $this->getName());
     }
 
-    abstract protected function setPrepend(): ?string;
-
-    protected function getAppend(): ?string
+    protected function getName(): string
     {
-        $append = $this->append;
+        return $this->name ?? '';
+    }
 
-        // Fallback for usage of closure with multilingual disabled.
-        return $append instanceof Closure ? $append(app()->getLocale()) : $append;
+    protected function getDisplayFailure(): bool
+    {
+        return $this->displayFailure;
     }
 
-    abstract protected function setAppend(): ?string;
+    abstract protected function setDisplayFailure(): bool;
 
-    protected function getCaption(): ?string
+    protected function getDisplaySuccess(): bool
     {
-        return $this->caption;
+        return $this->displaySuccess;
     }
 
-    abstract protected function setCaption(): ?string;
+    abstract protected function setDisplaySuccess(): bool;
 
-    protected function getLabel(): ?string
+    protected function getErrorMessage(?ViewErrorBag $errors): ?string
     {
-        $label = $this->label ?: (string) __('validation.attributes.' . $this->removeArrayCharactersFromName());
+        if (! $errors) {
+            return null;
+        }
+        if (! $this->getDisplayFailure()) {
+            return null;
+        }
 
-        return $this->hideLabel ? null : $label;
+        return $this->getErrorMessageBag($errors)->first($this->convertArrayNameInNotation());
     }
 
-    protected function removeArrayCharactersFromName(): string
+    protected function getSuccessMessage(): ?string
     {
-        return strstr($this->getName(), '[', true) ?: $this->getName();
+        if ($this->getDisplaySuccess()) {
+            return (string) __('Field correctly filled.');
+        }
+
+        return null;
     }
 
     protected function getLabelPositionedAbove(): bool
@@ -234,59 +245,96 @@ protected function getLabelPositionedAbove(): bool
 
     abstract protected function setLabelPositionedAbove(): bool;
 
-    protected function getValue()
+    protected function getLabel(): ?string
     {
-        $value = old($this->convertArrayNameInNotation()) ?: $this->value;
-        // Fallback for usage of closure with multilingual disabled.
-        $value = $value instanceof Closure ? $value(app()->getLocale()) : $value;
+        if ($this->hideLabel) {
+            return null;
+        }
+        if ($this->label) {
+            return $this->label;
+        }
 
-        return $value ?? optional($this->getModel())->{$this->convertArrayNameInNotation()};
+        return (string) __('validation.attributes.' . $this->removeArrayCharactersFromName());
     }
 
-    protected function convertArrayNameInNotation(string $notation = '.'): string
+    protected function removeArrayCharactersFromName(): string
     {
-        return str_replace(['[', ']'], [$notation, ''], $this->getName());
+        return strstr($this->getName(), '[', true) ?: $this->getName();
     }
 
-    protected function getPlaceholder(): ?string
+    /** @return mixed */
+    protected function getValue()
     {
-        return $this->placeholder
-            ?? ($this->getLabel() ?: (string) __('validation.attributes.' . $this->removeArrayCharactersFromName()));
+        $oldValue = old($this->convertArrayNameInNotation());
+        if ($oldValue) {
+            return $oldValue;
+        }
+        // Fallback for usage of closure with multilingual disabled.
+        if ($this->value instanceof Closure) {
+            return ($this->value)(app()->getLocale());
+        }
+        if (isset($this->value)) {
+            return $this->value;
+        }
+
+        return optional($this->model)->{$this->convertArrayNameInNotation()};
     }
 
-    protected function getDisplaySuccess(): bool
+    protected function getPlaceholder(): ?string
     {
-        return $this->displaySuccess;
-    }
+        if (isset($this->placeholder)) {
+            return $this->placeholder;
+        }
+        $label = $this->getLabel();
+        if ($label) {
+            return $label;
+        }
 
-    abstract protected function setDisplaySuccess(): bool;
+        return (string) __('validation.attributes.' . $this->removeArrayCharactersFromName());
+    }
 
-    protected function getDisplayFailure(): bool
+    protected function getPrepend(): ?string
     {
-        return $this->displayFailure;
+        // Fallback for usage of closure with multilingual disabled.
+        if ($this->prepend instanceof Closure) {
+            return ($this->prepend)(app()->getLocale());
+        }
+
+        return $this->prepend;
     }
 
-    abstract protected function setDisplayFailure(): bool;
+    abstract protected function setPrepend(): ?string;
 
-    protected function getValidationClass(): ?string
+    protected function getAppend(): ?string
     {
-        if (session()->has('errors')) {
-            return session()->get('errors')->has($this->convertArrayNameInNotation())
-                ? ($this->getDisplayFailure() ? 'is-invalid' : null)
-                : ($this->getDisplaySuccess() ? 'is-valid' : null);
+        // Fallback for usage of closure with multilingual disabled.
+        if ($this->append instanceof Closure) {
+            return ($this->append)(app()->getLocale());
         }
 
-        return null;
+        return $this->append;
     }
 
-    protected function getErrorMessage(): ?string
+    abstract protected function setAppend(): ?string;
+
+    protected function getCaption(): ?string
     {
-        return optional(session()->get('errors'))->first($this->convertArrayNameInNotation());
+        return $this->caption;
     }
 
+    abstract protected function setCaption(): ?string;
+
     protected function getComponentId(): string
     {
-        return parent::getComponentId()
-            ?? $this->getType() . '-' . Str::slug(Str::snake($this->convertArrayNameInNotation('-'), '-'));
+        if ($this->componentId) {
+            return $this->componentId;
+        }
+
+        return $this->getType() . '-' . Str::slug(Str::snake($this->convertArrayNameInNotation('-'), '-'));
+    }
+
+    protected function getModel(): ?Model
+    {
+        return $this->model;
     }
 }
diff --git a/src/Components/Form/Abstracts/MultilingualAbstract.php b/src/Components/Form/Abstracts/MultilingualAbstract.php
index 3b02cea6..fdc94983 100644
--- a/src/Components/Form/Abstracts/MultilingualAbstract.php
+++ b/src/Components/Form/Abstracts/MultilingualAbstract.php
@@ -3,13 +3,11 @@
 namespace Okipa\LaravelBootstrapComponents\Components\Form\Abstracts;
 
 use Closure;
+use Illuminate\Support\ViewErrorBag;
 use Okipa\LaravelBootstrapComponents\Components\Form\Multilingual\Resolver;
-use Okipa\LaravelBootstrapComponents\Components\Form\Traits\MultilingualValidityChecks;
 
 abstract class MultilingualAbstract extends FormAbstract
 {
-    use MultilingualValidityChecks;
-
     protected Resolver $multilingualResolver;
 
     protected array $locales;
@@ -59,7 +57,7 @@ protected function multilingualRender(array $extraData = []): string
             $componentHtml = $view
                 ? (string) view(
                     'bootstrap-components::' . $view,
-                    array_merge($this->getLocalizedValues($locale), $extraData)
+                    array_merge($this->getLocalizedViewParams($locale), $extraData)
                 )->render()
                 : '';
             $html .= trim($componentHtml);
@@ -68,39 +66,41 @@ protected function multilingualRender(array $extraData = []): string
         return $html;
     }
 
-    protected function getLocalizedValues(string $locale): array
-    {
-        return array_merge($this->getValues(), $this->getLocalizedParameters($locale));
+    protected function getLocalizedViewParams(string $locale): array
+    {
+        return [
+            'component' => $this,
+            'locale' => $locale,
+            'containerId' => $this->getLocalizedContainerId($locale),
+            'containerClasses' => $this->getContainerClasses(),
+            'containerHtmlAttributes' => $this->getContainerHtmlAttributes(),
+            'componentId' => $this->getLocalizedComponentId($locale),
+            'componentClasses' => $this->getComponentClasses(),
+            'componentHtmlAttributes' => $this->getLocalizedComponentHtmlAttributes($locale),
+            'validationClass' => fn(
+                ?ViewErrorBag $errors,
+                ?string $locale
+            ) => $this->getLocalizedValidationClass($errors, $locale),
+            'errorMessage' => fn(
+                ?ViewErrorBag $errors,
+                ?string $locale
+            ) => $this->getLocalizedErrorMessage($errors, $locale),
+            'successMessage' => fn() => $this->getSuccessMessage(),
+            'labelPositionedAbove' => $this->getLabelPositionedAbove(),
+            'label' => $this->getLocalizedLabel($locale),
+            'type' => $this->getType(),
+            'name' => $this->getLocalizedName($locale),
+            'value' => $this->getLocalizedValue($locale),
+            'placeholder' => $this->getLocalizedPlaceholder($locale),
+            'prepend' => $this->getLocalizedPrepend($locale),
+            'append' => $this->getLocalizedAppend($locale),
+            'caption' => $this->getCaption(),
+        ];
     }
 
-    protected function getLocalizedParameters(string $locale): array
+    protected function getLocalizedContainerId(string $locale): ?string
     {
-        $parentParams = $this->getParameters();
-        $componentId = $this->getLocalizedComponentId($locale);
-        $containerId = $this->getLocalizedContainerId($locale);
-        $componentHtmlAttributes = $this->getLocalizedComponentHtmlAttributes($locale);
-        $name = $this->getLocalizedName($locale);
-        $prepend = $this->getLocalizedPrepend($locale);
-        $append = $this->getLocalizedAppend($locale);
-        $label = $this->getLocalizedLabel($locale);
-        $value = $this->getLocalizedValue($locale);
-        $placeholder = $this->getLocalizedPlaceholder($locale);
-        $validationClass = $this->getLocalizedValidationClass($locale);
-        $errorMessage = $this->getLocalizedErrorMessage($locale);
-
-        return array_merge($parentParams, compact(
-            'componentId',
-            'containerId',
-            'componentHtmlAttributes',
-            'name',
-            'prepend',
-            'append',
-            'label',
-            'value',
-            'placeholder',
-            'validationClass',
-            'errorMessage'
-        ));
+        return $this->getContainerId() ? $this->getContainerId() . '-' . $locale : null;
     }
 
     protected function getLocalizedComponentId(string $locale): string
@@ -108,35 +108,46 @@ protected function getLocalizedComponentId(string $locale): string
         return $this->getComponentId() . '-' . $locale;
     }
 
-    protected function getLocalizedContainerId(string $locale): ?string
-    {
-        return $this->getContainerId() ? $this->getContainerId() . '-' . $locale : null;
-    }
-
     protected function getLocalizedComponentHtmlAttributes(string $locale): array
     {
         return array_merge(['data-locale' => $locale], $this->getComponentHtmlAttributes());
     }
 
-    protected function getLocalizedName(string $locale): string
+    protected function getLocalizedValidationClass(?ViewErrorBag $errors, string $locale): ?string
     {
-        return $this->multilingualResolver->resolveLocalizedName($this->getName(), $locale);
-    }
-
-    protected function getLocalizedPrepend(string $locale): ?string
-    {
-        $prepend = $this->prepend;
+        if (! $errors) {
+            return null;
+        }
+        if ($this->getErrorMessageBag($errors)->isEmpty()) {
+            return null;
+        }
+        if (
+            $this->getErrorMessageBag($errors)->has($this->multilingualResolver->resolveErrorMessageBagKey(
+                $this->getName(),
+                $locale
+            ))
+        ) {
+            return $this->getDisplayFailure() ? 'is-invalid' : null;
+        }
 
-        // fallback for usage of closure with multilingual disabled
-        return $prepend instanceof Closure ? $prepend($locale) : $prepend;
+        // Only highlight valid fields if there are invalid fields.
+        return $this->getDisplaySuccess() ? 'is-valid' : null;
     }
 
-    protected function getLocalizedAppend(string $locale): ?string
+    protected function getLocalizedErrorMessage(?ViewErrorBag $errors, string $locale): ?string
     {
-        $append = $this->append;
+        if (! $errors) {
+            return null;
+        }
+        if (! $this->getDisplayFailure()) {
+            return null;
+        }
 
-        // fallback for usage of closure with multilingual disabled
-        return $append instanceof Closure ? $append($locale) : $append;
+        return $this->multilingualResolver->resolveErrorMessage(
+            $this->getName(),
+            $this->getErrorMessageBag($errors),
+            $locale
+        );
     }
 
     protected function getLocalizedLabel(string $locale): ?string
@@ -146,18 +157,30 @@ protected function getLocalizedLabel(string $locale): ?string
         return $label ? $label . ' (' . mb_strtoupper($locale) . ')' : null;
     }
 
+    protected function getLocalizedName(string $locale): string
+    {
+        return $this->multilingualResolver->resolveLocalizedName($this->getName(), $locale);
+    }
+
     protected function getLocalizedValue(string $locale)
     {
-        $oldValue = $this->multilingualResolver->resolveLocalizedOldValue($this->getName(), $locale);
-        /** @var Closure|null $valueClosure */
-        $valueClosure = $this->multilingualMode() ? $this->value : null;
-        $modelValue = $this->multilingualResolver->resolveLocalizedModelValue(
+        $oldLocalizedValue = $this->multilingualResolver->resolveLocalizedOldValue($this->getName(), $locale);
+        if ($oldLocalizedValue) {
+            return $oldLocalizedValue;
+        }
+        if ($this->value instanceof Closure) {
+            return ($this->value)($locale);
+        }
+        $localizedValue = $this->multilingualResolver->resolveLocalizedModelValue(
             $this->getName(),
             $locale,
             $this->getModel()
         );
+        if ($localizedValue) {
+            return $localizedValue;
+        }
 
-        return $oldValue ?? ($valueClosure ? $valueClosure($locale) : $modelValue);
+        return $this->getValue();
     }
 
     protected function getLocalizedPlaceholder(string $locale): ?string
@@ -167,21 +190,21 @@ protected function getLocalizedPlaceholder(string $locale): ?string
         return $placeholder ? $placeholder . ' (' . mb_strtoupper($locale) . ')' : null;
     }
 
-    protected function getLocalizedValidationClass(string $locale): ?string
+    protected function getLocalizedPrepend(string $locale): ?string
     {
-        if (session()->has('errors')) {
-            $errorMessageBagKey = $this->multilingualResolver->resolveErrorMessageBagKey($this->getName(), $locale);
-
-            return session()->get('errors')->has($errorMessageBagKey)
-                ? ($this->getDisplayFailure() ? 'is-invalid' : null)
-                : ($this->getDisplaySuccess() ? 'is-valid' : null);
+        if ($this->prepend instanceof Closure) {
+            return ($this->prepend)($locale);
         }
 
-        return null;
+        return $this->getPrepend();
     }
 
-    protected function getLocalizedErrorMessage(string $locale): ?string
+    protected function getLocalizedAppend(string $locale): ?string
     {
-        return $this->multilingualResolver->resolveErrorMessage(parent::getName(), $locale);
+        if ($this->append instanceof Closure) {
+            return ($this->append)($locale);
+        }
+
+        return $this->getAppend();
     }
 }
diff --git a/src/Components/Form/Abstracts/RadioAbstract.php b/src/Components/Form/Abstracts/RadioAbstract.php
index 5f2253f6..e678ac31 100644
--- a/src/Components/Form/Abstracts/RadioAbstract.php
+++ b/src/Components/Form/Abstracts/RadioAbstract.php
@@ -11,8 +11,11 @@ abstract class RadioAbstract extends CheckableAbstract
 
     protected function getComponentId(): string
     {
-        return $this->componentId
-            ?? $this->getType() . '-' . Str::slug(Str::snake($this->convertArrayNameInNotation('-'), '-')
+        if ($this->componentId) {
+            return $this->componentId;
+        }
+
+        return $this->getType() . '-' . Str::slug(Str::snake($this->convertArrayNameInNotation('-'), '-')
                 . '-' . Str::snake($this->getValue(), '-'));
     }
 
@@ -22,7 +25,10 @@ protected function getChecked(): bool
         if (isset($old) && $old !== '') {
             return $old === (string) $this->value;
         }
+        if (isset($this->checked)) {
+            return $this->checked;
+        }
 
-        return $this->checked ?? optional($this->model)->{$this->getName()} === $this->value;
+        return optional($this->model)->{$this->getName()} === $this->value;
     }
 }
diff --git a/src/Components/Form/Abstracts/SelectableAbstract.php b/src/Components/Form/Abstracts/SelectableAbstract.php
index 155ddf52..d0a06405 100644
--- a/src/Components/Form/Abstracts/SelectableAbstract.php
+++ b/src/Components/Form/Abstracts/SelectableAbstract.php
@@ -70,17 +70,14 @@ public function multiple(bool $multiple = true): self
         return $this;
     }
 
-    protected function getParameters(): array
+    protected function getViewParams(): array
     {
-        $options = $this->getOptions();
-        $optionValueField = $this->getOptionValueField();
-        $optionLabelField = $this->getOptionLabelField();
-        $multiple = $this->getMultiple();
-
-        return array_merge(
-            parent::getParameters(),
-            compact('options', 'optionValueField', 'optionLabelField', 'multiple')
-        );
+        return array_merge(parent::getViewParams(), [
+            'options' => $this->getOptions(),
+            'optionValueField' => $this->getOptionValueField(),
+            'optionLabelField' => $this->getOptionLabelField(),
+            'multiple' => $this->getMultiple(),
+        ]);
     }
 
     protected function getOptions(): array
diff --git a/src/Components/Form/Abstracts/TemporalAbstract.php b/src/Components/Form/Abstracts/TemporalAbstract.php
index 3a067e3d..6b80a60e 100644
--- a/src/Components/Form/Abstracts/TemporalAbstract.php
+++ b/src/Components/Form/Abstracts/TemporalAbstract.php
@@ -3,6 +3,7 @@
 namespace Okipa\LaravelBootstrapComponents\Components\Form\Abstracts;
 
 use Carbon\Carbon;
+use DateTime;
 use Okipa\LaravelBootstrapComponents\Components\Form\Traits\TemporalValidityChecks;
 
 abstract class TemporalAbstract extends FormAbstract
@@ -31,7 +32,7 @@ protected function getValue(): ?string
             return null;
         }
 
-        return is_a($value, 'DateTime')
+        return $value instanceof DateTime
             ? $value->format($this->getFormat())
             : Carbon::parse($value)->format($this->getFormat());
     }
diff --git a/src/Components/Form/Abstracts/UploadableAbstract.php b/src/Components/Form/Abstracts/UploadableAbstract.php
index b83adb31..dc7970e0 100644
--- a/src/Components/Form/Abstracts/UploadableAbstract.php
+++ b/src/Components/Form/Abstracts/UploadableAbstract.php
@@ -35,12 +35,14 @@ public function showRemoveCheckbox(bool $showRemoveCheckbox = true, ?string $rem
         return $this;
     }
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        return array_merge(parent::getValues(), [
+        $parentViewParams = parent::getViewParams();
+
+        return array_merge($parentViewParams, [
             'uploadedFileHtml' => $this->getUploadedFileHtml(),
             'showRemoveCheckbox' => $this->getShowRemoveCheckbox(),
-            'removeCheckboxLabel' => $this->getRemoveCheckboxLabel(parent::getValues()['label']),
+            'removeCheckboxLabel' => $this->getRemoveCheckboxLabel($parentViewParams['label']),
             'removeCheckboxName' => $this->getShowRemoveCheckboxName(),
         ]);
     }
diff --git a/src/Components/Form/InputEmail.php b/src/Components/Form/InputEmail.php
index f22bfd33..4a45dad4 100644
--- a/src/Components/Form/InputEmail.php
+++ b/src/Components/Form/InputEmail.php
@@ -48,7 +48,7 @@ protected function setContainerClasses(): array
 
     protected function setComponentHtmlAttributes(): array
     {
-        return [];
+        return ['autocomplete' => 'on'];
     }
 
     protected function setContainerHtmlAttributes(): array
diff --git a/src/Components/Form/InputPassword.php b/src/Components/Form/InputPassword.php
index 8f4ccc35..8645b3e3 100644
--- a/src/Components/Form/InputPassword.php
+++ b/src/Components/Form/InputPassword.php
@@ -53,7 +53,7 @@ protected function setComponentHtmlAttributes(): array
 
     protected function setContainerHtmlAttributes(): array
     {
-        return [];
+        return ['autocomplete' => 'on'];
     }
 
     protected function setDisplaySuccess(): bool
diff --git a/src/Components/Form/InputTel.php b/src/Components/Form/InputTel.php
index 996876d0..ffa20318 100644
--- a/src/Components/Form/InputTel.php
+++ b/src/Components/Form/InputTel.php
@@ -48,7 +48,7 @@ protected function setContainerClasses(): array
 
     protected function setComponentHtmlAttributes(): array
     {
-        return [];
+        return ['autocomplete' => 'on'];
     }
 
     protected function setContainerHtmlAttributes(): array
diff --git a/src/Components/Form/Multilingual/Resolver.php b/src/Components/Form/Multilingual/Resolver.php
index 52de947c..6f377729 100644
--- a/src/Components/Form/Multilingual/Resolver.php
+++ b/src/Components/Form/Multilingual/Resolver.php
@@ -3,6 +3,7 @@
 namespace Okipa\LaravelBootstrapComponents\Components\Form\Multilingual;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\MessageBag;
 
 class Resolver
 {
@@ -25,19 +26,19 @@ public function resolveLocalizedOldValue(string $name, string $locale): ?string
 
     public function resolveLocalizedModelValue(string $name, string $locale, ?Model $model): ?string
     {
-        return data_get(optional($model)->{$name}, $locale);
+        return data_get($model, "$name.$locale");
     }
 
-    public function resolveErrorMessage(string $name, string $locale): ?string
+    public function resolveErrorMessage(string $name, MessageBag $errors, string $locale): ?string
     {
         $errorMessageBagKey = $this->resolveErrorMessageBagKey($name, $locale);
-        $errorMessage = optional(session()->get('errors'))->first($errorMessageBagKey);
+        $errorMessage = $errors->first($errorMessageBagKey);
         $errorMessage = $this->undoInputNameLaravelUnderscoreRemovalInErrorMessage($name, $locale, $errorMessage);
 
         return $errorMessage
             ? str_replace(
                 $errorMessageBagKey,
-                ((string) __('validation.attributes.' . $name)) . ' (' . strtoupper($locale) . ')',
+                __('validation.attributes.' . $name) . ' (' . strtoupper($locale) . ')',
                 $errorMessage
             )
             : null;
diff --git a/src/Components/Form/Traits/MultilingualValidityChecks.php b/src/Components/Form/Traits/MultilingualValidityChecks.php
deleted file mode 100644
index 3cad83aa..00000000
--- a/src/Components/Form/Traits/MultilingualValidityChecks.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-namespace Okipa\LaravelBootstrapComponents\Components\Form\Traits;
-
-use InvalidArgumentException;
-
-trait MultilingualValidityChecks
-{
-    protected function checkValuesValidity(): void
-    {
-        parent::checkValuesValidity();
-        if (! is_callable($this->value) && $this->value && $this->multilingualMode()) {
-            throw new InvalidArgumentException(get_class($this) . ' : A multilingual component value has to
-            be set from this callable result : « ->value(function($locale){}) ».');
-        }
-    }
-}
diff --git a/src/Components/Form/Traits/RadioValidityChecks.php b/src/Components/Form/Traits/RadioValidityChecks.php
index f10ffec8..c674e9e4 100644
--- a/src/Components/Form/Traits/RadioValidityChecks.php
+++ b/src/Components/Form/Traits/RadioValidityChecks.php
@@ -9,7 +9,8 @@ trait RadioValidityChecks
     protected function checkValuesValidity(): void
     {
         parent::checkValuesValidity();
-        if (! isset($this->value) || $this->value === '') {
+        $value = $this->getValue();
+        if (! isset($value) || $value === '') {
             throw new InvalidArgumentException(
                 get_class($this) . ' : Missing $value property. Please use the value() method to set a value.'
             );
diff --git a/src/Components/Form/Traits/SelectValidityChecks.php b/src/Components/Form/Traits/SelectValidityChecks.php
index 55a814cf..92edb957 100644
--- a/src/Components/Form/Traits/SelectValidityChecks.php
+++ b/src/Components/Form/Traits/SelectValidityChecks.php
@@ -57,12 +57,16 @@ protected function checkSelectedFieldToCompareExistenceInOption(array $option):
 
     protected function checkMultipleModeModelAttributeType(): void
     {
-        if ($this->model && isset($this->model->{$this->getName()}) && ! is_array($this->model->{$this->getName()})) {
+        if (
+            $this->getModel()
+            && $this->getModel()->{$this->getName()}
+            && ! is_array($this->getModel()->{$this->getName()})
+        ) {
             throw new InvalidArgumentException(
                 get_class($this) . ' : The « ' . $this->getName() . ' » attribute from the given « '
-                . $this->model->getMorphClass()
+                . $this->getModel()->getMorphClass()
                 . ' » model has to be an array when the select() component is in multiple mode : « '
-                . gettype($this->model->{$this->getName()}) . ' » type given.'
+                . gettype($this->getModel()->{$this->getName()}) . ' » type given.'
             );
         }
     }
@@ -83,7 +87,7 @@ protected function checkSingleModeSelectedValueToCompareType(): void
         if (
             $this->selectedValueToCompare
             && ! is_string($this->selectedValueToCompare)
-            && ! is_integer($this->selectedValueToCompare)
+            && ! is_int($this->selectedValueToCompare)
         ) {
             throw new InvalidArgumentException(
                 get_class($this) . ' : Invalid selected() second $valueToCompare argument. '
diff --git a/src/Components/Form/Traits/TemporalValidityChecks.php b/src/Components/Form/Traits/TemporalValidityChecks.php
index 98f0c0d4..bb41410a 100644
--- a/src/Components/Form/Traits/TemporalValidityChecks.php
+++ b/src/Components/Form/Traits/TemporalValidityChecks.php
@@ -17,9 +17,9 @@ protected function checkValuesValidity(): void
 
     protected function checkFormat(): void
     {
-        if (! $this->format) {
+        if (! $this->getFormat()) {
             throw new RuntimeException(get_class($this) . ' : No config or custom format given for the input'
-                . ucfirst($this->type) . ' component.');
+                . ucfirst($this->getType()) . ' component.');
         }
     }
 
@@ -28,7 +28,7 @@ protected function checkValue(): void
         try {
             Carbon::parse(parent::getValue());
         } catch (Exception $exception) {
-            throw new RuntimeException(get_class($this) . ' : The value for the input' . ucfirst($this->type)
+            throw new RuntimeException(get_class($this) . ' : The value for the input' . ucfirst($this->getType())
                 . ' component must be a valid DateTime object or a formatted string, « ' . parent::getValue()
                 . ' » given.');
         }
diff --git a/src/Components/Media/Abstracts/ImageAbstract.php b/src/Components/Media/Abstracts/ImageAbstract.php
index e05575e0..da73779e 100644
--- a/src/Components/Media/Abstracts/ImageAbstract.php
+++ b/src/Components/Media/Abstracts/ImageAbstract.php
@@ -69,40 +69,49 @@ public function linkId(string $linkId): self
         return $this;
     }
 
-    public function linkClasses(array $linkClasses): self
+    public function linkClasses(array $linkClasses, bool $mergeMode = false): self
     {
-        $this->linkClasses = $linkClasses;
+        $this->linkClasses = $mergeMode
+            ? array_merge($this->linkClasses, $linkClasses)
+            : $linkClasses;
 
         return $this;
     }
 
-    public function linkHtmlAttributes(array $linkHtmlAttributes): self
+    public function linkHtmlAttributes(array $linkHtmlAttributes, bool $mergeMode = false): self
     {
-        $this->linkHtmlAttributes = $linkHtmlAttributes;
+        $this->linkHtmlAttributes = $mergeMode
+            ? array_merge($this->linkHtmlAttributes, $linkHtmlAttributes)
+            : $linkHtmlAttributes;
 
         return $this;
     }
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        $alt = $this->getAlt();
-        $width = $this->getWidth();
-        $height = $this->getHeight();
-        $linkId = $this->getLinkId();
-        $linkClasses = $this->getLinkClasses();
-        $linkUrl = $this->getLinkUrl();
-        $linkTitle = $this->getLinkTitle();
-        $linkHtmlAttributes = $this->getLinkHtmlAttributes();
-
-        return array_merge(
-            parent::getValues(),
-            compact('alt', 'width', 'height', 'linkId', 'linkClasses', 'linkUrl', 'linkTitle', 'linkHtmlAttributes')
-        );
+        return array_merge(parent::getViewParams(), [
+            'alt' => $this->getAlt(),
+            'width' => $this->getWidth(),
+            'height' => $this->getHeight(),
+            'linkId' => $this->getLinkId(),
+            'linkClasses' => $this->getLinkClasses(),
+            'linkUrl' => $this->getLinkUrl(),
+            'linkTitle' => $this->getLinkTitle(),
+            'linkHtmlAttributes' => $this->getLinkHtmlAttributes(),
+        ]);
     }
 
     protected function getAlt(): ?string
     {
-        return $this->alt ?: $this->getLabel() ?: $this->linkTitle;
+        if ($this->alt) {
+            return $this->alt;
+        }
+        $label = $this->getLabel();
+        if ($label) {
+            return $label;
+        }
+
+        return $this->linkTitle;
     }
 
     protected function getWidth(): ?int
@@ -134,7 +143,15 @@ protected function getLinkUrl(): ?string
 
     protected function getLinkTitle(): ?string
     {
-        return $this->linkTitle ?: $this->getLabel() ?: $this->alt;
+        if ($this->linkTitle) {
+            return $this->linkTitle;
+        }
+        $label = $this->getLabel();
+        if ($label) {
+            return $label;
+        }
+
+        return $this->alt;
     }
 
     protected function getLinkHtmlAttributes(): array
diff --git a/src/Components/Media/Abstracts/MediaAbstract.php b/src/Components/Media/Abstracts/MediaAbstract.php
index 05009a1e..5901ce82 100644
--- a/src/Components/Media/Abstracts/MediaAbstract.php
+++ b/src/Components/Media/Abstracts/MediaAbstract.php
@@ -39,13 +39,13 @@ public function caption(?string $caption): self
         return $this;
     }
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        $label = $this->getLabel();
-        $src = $this->getSrc();
-        $caption = $this->getCaption();
-
-        return array_merge(parent::getValues(), compact('label', 'src', 'caption'));
+        return array_merge(parent::getViewParams(), [
+            'label' => $this->getLabel(),
+            'src' => $this->getSrc(),
+            'caption' => $this->getCaption(),
+        ]);
     }
 
     protected function getLabel(): ?string
diff --git a/src/Components/Media/Abstracts/VideoAbstract.php b/src/Components/Media/Abstracts/VideoAbstract.php
index 9033cf49..9fa6af83 100644
--- a/src/Components/Media/Abstracts/VideoAbstract.php
+++ b/src/Components/Media/Abstracts/VideoAbstract.php
@@ -19,11 +19,9 @@ public function poster(string $poster): self
         return $this;
     }
 
-    protected function getValues(): array
+    protected function getViewParams(): array
     {
-        $poster = $this->getPoster();
-
-        return array_merge(parent::getValues(), compact('poster'));
+        return array_merge(parent::getViewParams(), ['poster' => $this->getPoster()]);
     }
 
     protected function getPoster(): ?string
diff --git a/tests/Unit/Buttons/Abstracts/ButtonTestAbstract.php b/tests/Unit/Buttons/Abstracts/ButtonTestAbstract.php
index 8b6e80f6..4898bc0e 100644
--- a/tests/Unit/Buttons/Abstracts/ButtonTestAbstract.php
+++ b/tests/Unit/Buttons/Abstracts/ButtonTestAbstract.php
@@ -8,13 +8,13 @@ abstract class ButtonTestAbstract extends SubmitTestAbstract
 {
     use RoutesFaker;
 
-    public function testType()
+    public function testType(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringContainsString('<a', $html);
     }
 
-    public function setCustomUrl()
+    public function setCustomUrl(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -24,7 +24,7 @@ public function setCustomUrl()
         self::assertStringContainsString('href="default-url"', $html);
     }
 
-    public function testSetUrlOverridesDefault()
+    public function testSetUrlReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -36,7 +36,7 @@ public function testSetUrlOverridesDefault()
         self::assertStringNotContainsString('href="default-url"', $html);
     }
 
-    public function testSetRoute()
+    public function testSetRoute(): void
     {
         $this->setRoutes();
         $customRoute = 'users.index';
@@ -44,7 +44,7 @@ public function testSetRoute()
         self::assertStringContainsString('href="' . route($customRoute) . '"', $html);
     }
 
-    public function testSetCustomLabel()
+    public function testSetCustomLabel(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -55,7 +55,7 @@ public function testSetCustomLabel()
         self::assertStringContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testSetLabelOverridesDefault()
+    public function testSetLabelReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -69,14 +69,14 @@ public function testSetLabelOverridesDefault()
         self::assertStringNotContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testNoLabel()
+    public function testNoLabel(): void
     {
         $html = $this->getComponent()->label(null)->toHtml();
         self::assertStringNotContainsString('title="', $html);
         self::assertStringNotContainsString('<span class="label">', $html);
     }
 
-    public function testHideLabel()
+    public function testHideLabel(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -87,58 +87,16 @@ public function testHideLabel()
         self::assertStringNotContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testDefaultComponentId()
+    public function testDefaultComponentId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<a id="', $html);
     }
 
-    public function testSetComponentId()
+    public function testSetComponentId(): void
     {
         $customComponentId = 'custom-component-id';
         $html = $this->getComponent()->componentId($customComponentId)->toHtml();
         self::assertStringContainsString('<a id="' . $customComponentId . '"', $html);
     }
-
-    public function testSetCustomContainerClasses()
-    {
-        config()->set(
-            'bootstrap-components.components.' . $this->getComponentKey(),
-            get_class($this->getCustomComponent())
-        );
-        $html = $this->getComponent()->toHtml();
-        self::assertStringContainsString('class="component-container default container classes"', $html);
-    }
-
-    public function testSetContainerClassesOverridesDefault()
-    {
-        config()->set(
-            'bootstrap-components.components.' . $this->getComponentKey(),
-            get_class($this->getCustomComponent())
-        );
-        $html = $this->getComponent()->containerClasses(['custom', 'container', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component-container custom container classes"', $html);
-        self::assertStringNotContainsString('class="component-container default container classes"', $html);
-    }
-
-    public function testSetCustomComponentClasses()
-    {
-        config()->set(
-            'bootstrap-components.components.' . $this->getComponentKey(),
-            get_class($this->getCustomComponent())
-        );
-        $html = $this->getComponent()->toHtml();
-        self::assertStringContainsString('class="component btn default component classes"', $html);
-    }
-
-    public function testSetComponentClassesOverridesDefault()
-    {
-        config()->set(
-            'bootstrap-components.components.' . $this->getComponentKey(),
-            get_class($this->getCustomComponent())
-        );
-        $html = $this->getComponent()->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component btn custom component classes"', $html);
-        self::assertStringNotContainsString('class="component btn default component classes"', $html);
-    }
 }
diff --git a/tests/Unit/Buttons/Abstracts/SubmitTestAbstract.php b/tests/Unit/Buttons/Abstracts/SubmitTestAbstract.php
index 349f7ca5..345913d0 100644
--- a/tests/Unit/Buttons/Abstracts/SubmitTestAbstract.php
+++ b/tests/Unit/Buttons/Abstracts/SubmitTestAbstract.php
@@ -18,28 +18,28 @@ abstract protected function getComponentType(): string;
 
     abstract protected function getCustomComponent(): ComponentAbstract;
 
-    public function testHelper()
+    public function testHelper(): void
     {
         self::assertInstanceOf(get_class($this->getComponent()), $this->getHelper());
     }
 
-    public function testFacade()
+    public function testFacade(): void
     {
         self::assertInstanceOf(get_class($this->getComponent()), $this->getFacade());
     }
 
-    public function testInstance()
+    public function testInstance(): void
     {
         self::assertInstanceOf(SubmitAbstract::class, $this->getComponent());
     }
 
-    public function testType()
+    public function testType(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringContainsString(' <button type="' . $this->getComponentType() . '"', $html);
     }
 
-    public function testSetCustomPrepend()
+    public function testSetCustomPrepend(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -54,7 +54,7 @@ protected function getComponentKey(): string
         return $this->getComponentType();
     }
 
-    public function testSetPrependOverridesDefault()
+    public function testSetPrependReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -65,13 +65,13 @@ public function testSetPrependOverridesDefault()
         self::assertStringNotContainsString('<span class="label-prepend">default-prepend</span>', $html);
     }
 
-    public function testHidePrepend()
+    public function testHidePrepend(): void
     {
         $html = $this->getComponent()->prepend(null)->toHtml();
         self::assertStringNotContainsString('<span class="label-prepend">', $html);
     }
 
-    public function testSetCustomAppend()
+    public function testSetCustomAppend(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -81,7 +81,7 @@ public function testSetCustomAppend()
         self::assertStringContainsString('<span class="label-append">default-append</span>', $html);
     }
 
-    public function testSetAppendOverridesDefault()
+    public function testSetAppendReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -92,20 +92,20 @@ public function testSetAppendOverridesDefault()
         self::assertStringNotContainsString('<span class="label-append">default-append</span>', $html);
     }
 
-    public function testHideAppend()
+    public function testHideAppend(): void
     {
         $html = $this->getComponent()->append(null)->toHtml();
         self::assertStringNotContainsString('<span class="label-append">', $html);
     }
 
-    public function testHidePrependHideAppend()
+    public function testHidePrependHideAppend(): void
     {
         $html = $this->getComponent()->prepend(null)->append(null)->toHtml();
         self::assertStringNotContainsString('<span class="label-prepend">', $html);
         self::assertStringNotContainsString('<span class="label-append">', $html);
     }
 
-    public function testSetCustomLabel()
+    public function testSetCustomLabel(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -115,7 +115,7 @@ public function testSetCustomLabel()
         self::assertStringContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testSetLabelOverridesDefault()
+    public function testSetLabelReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -127,13 +127,13 @@ public function testSetLabelOverridesDefault()
         self::assertStringNotContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testNoLabel()
+    public function testNoLabel(): void
     {
         $html = $this->getComponent()->label(null)->toHtml();
         self::assertStringNotContainsString('<span class="label">', $html);
     }
 
-    public function testHideLabel()
+    public function testHideLabel(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -143,33 +143,33 @@ public function testHideLabel()
         self::assertStringNotContainsString('<span class="label">default-label</span>', $html);
     }
 
-    public function testSetNoContainerId()
+    public function testSetNoContainerId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<div id="', $html);
     }
 
-    public function testSetContainerId()
+    public function testSetContainerId(): void
     {
         $customContainerId = 'custom-container-id';
         $html = $this->getComponent()->containerId($customContainerId)->toHtml();
         self::assertStringContainsString('<div id="' . $customContainerId . '"', $html);
     }
 
-    public function testDefaultComponentId()
+    public function testDefaultComponentId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<button id="', $html);
     }
 
-    public function testSetComponentId()
+    public function testSetComponentId(): void
     {
         $customComponentId = 'custom-component-id';
         $html = $this->getComponent()->componentId($customComponentId)->toHtml();
         self::assertStringContainsString('<button id="' . $customComponentId . '"', $html);
     }
 
-    public function testSetCustomContainerClasses()
+    public function testSetCustomContainerClasses(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -179,18 +179,27 @@ public function testSetCustomContainerClasses()
         self::assertStringContainsString('class="component-container default container classes"', $html);
     }
 
-    public function testSetContainerClassesOverridesDefault()
+    public function testSetContainerClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->containerClasses(['custom', 'container', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component-container custom container classes"', $html);
-        self::assertStringNotContainsString('class="component-container default container classes"', $html);
+        $html = $this->getComponent()->containerClasses(['with', 'merged'], true)->toHtml();
+        self::assertStringContainsString('class="component-container default container classes with merged"', $html);
     }
 
-    public function testSetCustomComponentClasses()
+    public function testSetContainerClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->containerClasses(['replaces', 'default'])->toHtml();
+        self::assertStringContainsString('class="component-container replaces default"', $html);
+    }
+
+    public function testSetCustomComponentClasses(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -200,44 +209,57 @@ public function testSetCustomComponentClasses()
         self::assertStringContainsString('class="component btn default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault()
+    public function testSetComponentClassesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->componentClasses(['with', 'merged'], true)->toHtml();
+        self::assertStringContainsString('class="component btn default component classes with merged"', $html);
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component btn custom component classes"', $html);
-        self::assertStringNotContainsString('class="component btn default component classes"', $html);
+        $html = $this->getComponent()->componentClasses(['replaces', 'default'])->toHtml();
+        self::assertStringContainsString('class="component btn replaces default"', $html);
     }
 
-    public function testSetCustomContainerHtmlAttributes()
+    public function testSetCustomContainerHtmlAttributes(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()->toHtml();
-        self::assertStringContainsString(
-            'default="container" html="attributes">',
-            $html
+        self::assertStringContainsString('default="container" html="attributes">', $html);
+    }
+
+    public function testSetContainerHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
         );
+        $html = $this->getComponent()->containerHtmlAttributes(['with' => 'merged'], true)->toHtml();
+        self::assertStringContainsString('default="container" html="attributes" with="merged">', $html);
     }
 
-    public function testSetContainerHtmlAttributesOverridesDefault()
+    public function testSetContainerHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()
-            ->containerHtmlAttributes(['custom' => 'container', 'html' => 'attributes'])
-            ->toHtml();
-        self::assertStringContainsString('custom="container" html="attributes">', $html);
-        self::assertStringNotContainsString('default="container" html="attributes">', $html);
+        $html = $this->getComponent()->containerHtmlAttributes(['replaces' => 'default'])->toHtml();
+        self::assertStringContainsString('replaces="default">', $html);
     }
 
-    public function testSetCustomComponentHtmlAttributes()
+    public function testSetCustomComponentHtmlAttributes(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -247,16 +269,23 @@ public function testSetCustomComponentHtmlAttributes()
         self::assertStringContainsString('default="component" html="attributes">', $html);
     }
 
-    public function testSetComponentHtmlAttributesOverridesDefault()
+    public function testSetComponentHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->componentHtmlAttributes(['with' => 'merged'], true)->toHtml();
+        self::assertStringContainsString('default="component" html="attributes" with="merged">', $html);
+    }
+
+    public function testSetComponentHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()
-            ->componentHtmlAttributes(['custom' => 'component', 'html' => 'attributes'])
-            ->toHtml();
-        self::assertStringContainsString('custom="component" html="attributes">', $html);
-        self::assertStringNotContainsString('default="component" html="attributes">', $html);
+        $html = $this->getComponent()->componentHtmlAttributes(['replaced' => 'default'])->toHtml();
+        self::assertStringContainsString('replaced="default">', $html);
     }
 }
diff --git a/tests/Unit/Form/Abstracts/InputCheckableTestAbstract.php b/tests/Unit/Form/Abstracts/InputCheckableTestAbstract.php
index 03c24a12..a471cc0c 100644
--- a/tests/Unit/Form/Abstracts/InputCheckableTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/InputCheckableTestAbstract.php
@@ -34,7 +34,7 @@ public function testSetCustomPrepend(): void
         self::assertStringContainsString('<span class="label-prepend">default-prepend</span>', $html);
     }
 
-    public function testSetPrependOverridesDefault(): void
+    public function testSetPrependReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -69,7 +69,7 @@ public function testSetCustomAppend(): void
         self::assertStringContainsString('<span class="label-append">default-append</span>', $html);
     }
 
-    public function testSetAppendOverridesDefault(): void
+    public function testSetAppendReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -147,9 +147,7 @@ public function testSetNullValue(): void
 
     public function testSetValueFromClosureWithDisabledMultilingual(): void
     {
-        $html = $this->getComponent()->name('name')->value(function () {
-            return true;
-        })->toHtml();
+        $html = $this->getComponent()->name('name')->value(fn() => true)->toHtml();
         self::assertStringContainsString('checked="checked', $html);
     }
 
@@ -163,51 +161,36 @@ public function testSetValueOverridesModelValue(): void
     {
         $user = $this->createUniqueUser();
         $html = $this->getComponent()->model($user)->name('active')->value(false)->toHtml();
-        self::assertStringContainsString('checked="checked', $html);
+        self::assertStringNotContainsString('checked="checked', $html);
     }
 
     public function testOldValue(): void
     {
-        $oldValue = true;
-        $value = false;
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['active' => (string) $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['active' => '1'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('active')->value($value)->toHtml();
+        $html = $this->getComponent()->name('active')->checked(false)->toHtml();
         self::assertStringContainsString('checked="checked', $html);
     }
 
     public function testOldArrayValue(): void
     {
-        $oldValue = true;
-        $value = false;
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['active' => [0 => (string) $oldValue]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['active' => ['1']])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('active[0]')->value($value)->toHtml();
+        $html = $this->getComponent()->name('active[0]')->checked(false)->toHtml();
         self::assertStringContainsString('checked="checked', $html);
     }
 
     public function testOldValueNotChecked(): void
     {
-        $oldValue = false;
-        $value = true;
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['active' => (string) $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['active' => '0'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('active')->value($value)->toHtml();
+        $html = $this->getComponent()->name('active')->checked(true)->toHtml();
         self::assertStringNotContainsString('checked="checked', $html);
     }
 
@@ -239,7 +222,7 @@ public function testSetCustomLabelPositionedAbove(): void
         self::markTestSkipped();
     }
 
-    public function testSetLabelPositionedAboveOverridesDefault(): void
+    public function testSetLabelPositionedAboveReplacesDefault(): void
     {
         self::markTestSkipped();
     }
@@ -298,21 +281,29 @@ public function testSetCustomContainerClasses(): void
         );
     }
 
-    public function testSetContainerClassesOverridesDefault(): void
+    public function testSetContainerClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->containerClasses(['custom', 'container', 'classes'])->toHtml();
+        $html = $this->getComponent()->name('name')->containerClasses(['merged'], true)->toHtml();
         self::assertStringContainsString(
             'class="component-container custom-control custom-' . $this->getComponentType()
-            . ' custom container classes"',
+            . ' default container classes merged"',
             $html
         );
-        self::assertStringNotContainsString(
-            'class="component-container custom-control custom-' . $this->getComponentType()
-            . ' default container classes"',
+    }
+
+    public function testSetContainerClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->containerClasses(['replaced'])->toHtml();
+        self::assertStringContainsString(
+            'class="component-container custom-control custom-' . $this->getComponentType() . ' replaced"',
             $html
         );
     }
@@ -327,14 +318,26 @@ public function testSetCustomComponentClasses(): void
         self::assertStringContainsString('class="component custom-control-input default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault(): void
+    public function testSetComponentClassesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->componentClasses(['merged'], true)->toHtml();
+        self::assertStringContainsString(
+            'class="component custom-control-input default component classes merged"',
+            $html
+        );
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component custom-control-input custom component classes"', $html);
-        self::assertStringNotContainsString('class="component custom-control-input default component classes"', $html);
+        $html = $this->getComponent()->name('name')->componentClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component custom-control-input replaced"', $html);
     }
 }
diff --git a/tests/Unit/Form/Abstracts/InputFileTestAbstract.php b/tests/Unit/Form/Abstracts/InputFileTestAbstract.php
index 0aa074cc..bc59f87f 100644
--- a/tests/Unit/Form/Abstracts/InputFileTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/InputFileTestAbstract.php
@@ -73,38 +73,28 @@ public function testSetValueFromClosureWithDisabledMultilingual(): void
 
     public function testOldValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => 'old-value'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($value)->toHtml();
+        $html = $this->getComponent()->name('name')->value('custom-value')->toHtml();
         self::assertStringContainsString('<label class="custom-file-label" for="' . $this->getComponentType()
-            . '-name">' . $oldValue . '</label>', $html);
+            . '-name">old-value</label>', $html);
         self::assertStringNotContainsString('<label class="custom-file-label" for="' . $this->getComponentType()
-            . '-name">' . $value . '</label>', $html);
+            . '-name">custom-value</label>', $html);
     }
 
     public function testOldArrayValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => [0 => $oldValue]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => [0 => 'old-value']])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name[0]')->value($value)->toHtml();
+        $html = $this->getComponent()->name('name[0]')->value('custom-value')->toHtml();
         self::assertStringContainsString('<label class="custom-file-label" for="' . $this->getComponentType()
-            . '-name-0">' . $oldValue . '</label>', $html);
+            . '-name-0">old-value</label>', $html);
         self::assertStringNotContainsString('<label class="custom-file-label" for="' . $this->getComponentType()
-            . '-name-0">' . $value . '</label>', $html);
+            . '-name-0">custom-value</label>', $html);
     }
 
     public function testDefaultPlaceholder(): void
@@ -159,7 +149,6 @@ public function testNoPlaceholderWithNoLabel(): void
             . '-name">' . __('No file selected.') . '</label>', $html);
     }
 
-
     public function testHidePlaceholder(): void
     {
         $html = $this->getComponent()->name('name')->placeholder(false)->toHtml();
@@ -181,21 +170,27 @@ public function testSetCustomComponentClasses(): void
         );
     }
 
-    public function testSetComponentClassesOverridesDefault(): void
+    public function testSetComponentClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->componentClasses(['custom', 'component', 'classes'])->toHtml();
+        $html = $this->getComponent()->name('name')->componentClasses(['merged'], true)->toHtml();
         self::assertStringContainsString(
-            'class="component form-control custom-file-input custom component classes"',
+            'class="component form-control custom-file-input default component classes merged"',
             $html
         );
-        self::assertStringNotContainsString(
-            'class="component form-control custom-file-input default component classes"',
-            $html
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
         );
+        $html = $this->getComponent()->name('name')->componentClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component form-control custom-file-input replaced"', $html);
     }
 
     public function testSetUploadedFile(): void
@@ -228,7 +223,7 @@ public function testCustomShowRemoveCheckbox(): void
         self::assertStringContainsString(' name="remove_name"', $html);
     }
 
-    public function testSetShowRemoveCheckboxOverridesDefault(): void
+    public function testSetShowRemoveCheckboxReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
diff --git a/tests/Unit/Form/Abstracts/InputMultilingualTestAbstract.php b/tests/Unit/Form/Abstracts/InputMultilingualTestAbstract.php
index 99723cc4..39ea4b21 100644
--- a/tests/Unit/Form/Abstracts/InputMultilingualTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/InputMultilingualTestAbstract.php
@@ -3,7 +3,7 @@
 namespace Okipa\LaravelBootstrapComponents\Tests\Unit\Form\Abstracts;
 
 use Illuminate\Support\MessageBag;
-use InvalidArgumentException;
+use Illuminate\Support\ViewErrorBag;
 use Okipa\LaravelBootstrapComponents\Components\Form\Abstracts\MultilingualAbstract;
 use Okipa\LaravelBootstrapComponents\Tests\Dummy\Resolver;
 use Okipa\LaravelBootstrapComponents\Tests\Models\User;
@@ -94,14 +94,6 @@ public function testLocalizedModelValueFromCustomMultilingualResolver(): void
         }
     }
 
-    public function testSetLocalizedWrongValue(): void
-    {
-        $locales = ['fr', 'en'];
-        $value = 'custom-value';
-        $this->expectException(InvalidArgumentException::class);
-        $this->getComponent()->name('name')->locales($locales)->value($value)->toHtml();
-    }
-
     public function testSetLocalizedValue(): void
     {
         $locales = ['fr', 'en'];
@@ -112,9 +104,7 @@ public function testSetLocalizedValue(): void
         $html = $this->getComponent()
             ->name('name')
             ->locales($locales)
-            ->value(function ($locale) use ($values) {
-                return $values[$locale];
-            })
+            ->value(fn($locale) => $values[$locale])
             ->toHtml();
         foreach ($locales as $locale) {
             self::assertStringContainsString(' value="' . $values[$locale] . '"', $html);
@@ -131,10 +121,7 @@ public function testLocalizedOldValue(): void
             $values[$locale] = 'custom-value-' . $locale;
         }
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValues) {
-                $request = request()->merge(['name' => $oldValues]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => $oldValues])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()->name('name')->locales($locales)->value(function ($locale) use ($values) {
@@ -160,15 +147,10 @@ public function testLocalizedOldValueFromCustomMultilingualResolver(): void
             $values[$locale] = 'custom-value-' . $locale;
         }
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValues) {
-                $request = request()->merge($oldValues);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge($oldValues)->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value(function ($locale) use ($values) {
-            return $values[$locale];
-        })->toHtml();
+        $html = $this->getComponent()->name('name')->value(fn($locale) => $values[$locale])->toHtml();
         foreach ($resolverLocales as $resolverLocale) {
             self::assertStringContainsString('value="' . $oldValues['name_' . $resolverLocale] . '"', $html);
         }
@@ -183,9 +165,7 @@ public function testSetLocalizedPrepend(): void
         $html = $this->getComponent()
             ->name('name')
             ->locales($locales)
-            ->prepend(function ($locale) {
-                return 'prepend-' . $locale;
-            })
+            ->prepend(fn($locale) => 'prepend-' . $locale)
             ->toHtml();
         foreach ($locales as $locale) {
             self::assertStringContainsString('<span class="input-group-text">prepend-' . $locale . '</span>', $html);
@@ -259,9 +239,8 @@ public function testSetLocalizedContainerId(): void
     public function testLocalizedErrorMessage(): void
     {
         $locales = ['fr', 'en'];
-        $errors = app(MessageBag::class);
-        $errors->add('name.fr', 'Dummy name.fr error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('name.fr', 'Dummy name.fr error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->locales($locales)->displayFailure()->render(compact('errors'));
         self::assertStringContainsString(
             'id="' . $this->getComponentType() . '-name-fr" class="component form-control is-invalid"',
@@ -281,9 +260,8 @@ public function testLocalizedErrorMessage(): void
     public function testLocalizedErrorMessageWithSeveralWords(): void
     {
         $locales = ['fr', 'en'];
-        $errors = app(MessageBag::class);
-        $errors->add('last_name.fr', 'Dummy last name.fr error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('last_name.fr', 'Dummy last name.fr error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()
             ->name('last_name')
             ->locales($locales)
@@ -311,9 +289,8 @@ public function testLocalizedErrorMessageWithSeveralWordsAndCustomMultilingualRe
     {
         config()->set('bootstrap-components.form.multilingualResolver', Resolver::class);
         $locales = ['fr', 'en'];
-        $errors = app(MessageBag::class);
-        $errors->add('last_name_fr', 'Dummy last name fr error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('last_name_fr', 'Dummy last name fr error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()
             ->name('last_name')
             ->locales($locales)
@@ -340,9 +317,8 @@ public function testLocalizedErrorMessageWithSeveralWordsAndCustomMultilingualRe
     public function testLocalizedErrorMessageFromCustomMultilingualResolver(): void
     {
         config()->set('bootstrap-components.form.multilingualResolver', Resolver::class);
-        $errors = app(MessageBag::class);
-        $errors->add('name_en', 'Dummy name_en error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('name_en', 'Dummy name_en error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->displayFailure()->render(compact('errors'));
         self::assertStringContainsString(
             'id="' . $this->getComponentType() . '-name-en" class="component form-control is-invalid"',
diff --git a/tests/Unit/Form/Abstracts/InputRadioTestAbstract.php b/tests/Unit/Form/Abstracts/InputRadioTestAbstract.php
index 941bad85..5fc303b8 100644
--- a/tests/Unit/Form/Abstracts/InputRadioTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/InputRadioTestAbstract.php
@@ -2,7 +2,6 @@
 
 namespace Okipa\LaravelBootstrapComponents\Tests\Unit\Form\Abstracts;
 
-use RuntimeException;
 use InvalidArgumentException;
 use Okipa\LaravelBootstrapComponents\Components\Form\Abstracts\RadioAbstract;
 
@@ -36,7 +35,7 @@ public function testSetCustomPrepend(): void
         self::assertStringContainsString('<span class="label-prepend">default-prepend</span>', $html);
     }
 
-    public function testSetPrependOverridesDefault(): void
+    public function testSetPrependReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -71,7 +70,7 @@ public function testSetCustomAppend(): void
         self::assertStringContainsString('<span class="label-append">default-append</span>', $html);
     }
 
-    public function testSetAppendOverridesDefault(): void
+    public function testSetAppendReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -136,55 +135,40 @@ public function testModelValueChecked(): void
 
     public function testOldValue(): void
     {
-        $oldValue = 'old-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => 'old-value'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($oldValue)->checked(false)->toHtml();
+        $html = $this->getComponent()->name('name')->value('old-value')->checked(false)->toHtml();
         self::assertStringContainsString('checked="checked', $html);
     }
 
     public function testOldZeroValue(): void
     {
-        $oldValue = 0;
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                // http values are always stored as string
-                $request = request()->merge(['name' => (string) $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => '0'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($oldValue)->checked(false)->toHtml();
+        $html = $this->getComponent()->name('name')->value(0)->checked(false)->toHtml();
         self::assertStringContainsString('checked="checked', $html);
     }
 
     public function testOldValueNotChecked(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => 'old-value'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($value)->checked()->toHtml();
+        $html = $this->getComponent()->name('name')->value('custom-value')->checked()->toHtml();
         self::assertStringNotContainsString('checked="checked', $html);
     }
 
     public function testSetLabel(): void
     {
-        $label = 'custom-label';
-        $html = $this->getComponent()->name('name')->label($label)->toHtml();
+        $html = $this->getComponent()->name('name')->label('custom-label')->toHtml();
         self::assertStringContainsString(
-            '<label class="custom-control-label" for="' . $this->getComponentType() . '-name-value">' . $label
-            . '</label>',
+            '<label class="custom-control-label" for="' . $this->getComponentType()
+            . '-name-value">custom-label</label>',
             $html
         );
     }
@@ -214,7 +198,7 @@ public function testSetCustomLabelPositionedAbove(): void
         self::markTestSkipped();
     }
 
-    public function testSetLabelPositionedAboveOverridesDefault(): void
+    public function testSetLabelPositionedAboveReplacesDefault(): void
     {
         self::markTestSkipped();
     }
@@ -277,10 +261,7 @@ public function testDefaultComponentIdFormatting(): void
     {
         $html = $this->getComponent()->name('camelCaseName')->toHtml();
         self::assertStringContainsString(' for="' . $this->getComponentType() . '-camel-case-name-value"', $html);
-        self::assertStringContainsString(
-            '<input id="' . $this->getComponentType() . '-camel-case-name-value"',
-            $html
-        );
+        self::assertStringContainsString('<input id="' . $this->getComponentType() . '-camel-case-name-value"', $html);
     }
 
     public function testSetCustomContainerClasses(): void
@@ -296,21 +277,27 @@ public function testSetCustomContainerClasses(): void
         );
     }
 
-    public function testSetContainerClassesOverridesDefault(): void
+    public function testSetContainerClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->containerClasses(['custom', 'container', 'classes'])->toHtml();
+        $html = $this->getComponent()->name('name')->containerClasses(['merged'], true)->toHtml();
         self::assertStringContainsString(
-            'class="component-container custom-control custom-checkbox custom container classes"',
+            'class="component-container custom-control custom-checkbox default container classes merged"',
             $html
         );
-        self::assertStringNotContainsString(
-            'class="component-container form-group custom-control custom-checkbox default container classes"',
-            $html
+    }
+
+    public function testSetContainerClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
         );
+        $html = $this->getComponent()->name('name')->containerClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component-container custom-control custom-checkbox replaced"', $html);
     }
 
     public function testSetCustomComponentClasses(): void
@@ -323,14 +310,26 @@ public function testSetCustomComponentClasses(): void
         self::assertStringContainsString('class="component custom-control-input default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault(): void
+    public function testSetComponentClassesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->componentClasses(['merged'], true)->toHtml();
+        self::assertStringContainsString(
+            'class="component custom-control-input default component classes merged"',
+            $html
+        );
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component custom-control-input custom component classes"', $html);
-        self::assertStringNotContainsString('class="component custom-control-input default component classes"', $html);
+        $html = $this->getComponent()->name('name')->componentClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component custom-control-input replaced"', $html);
     }
 }
diff --git a/tests/Unit/Form/Abstracts/InputTestAbstract.php b/tests/Unit/Form/Abstracts/InputTestAbstract.php
index 3e96692c..cb794c72 100644
--- a/tests/Unit/Form/Abstracts/InputTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/InputTestAbstract.php
@@ -2,12 +2,13 @@
 
 namespace Okipa\LaravelBootstrapComponents\Tests\Unit\Form\Abstracts;
 
-use RuntimeException;
 use Illuminate\Support\MessageBag;
+use Illuminate\Support\ViewErrorBag;
 use Okipa\LaravelBootstrapComponents\Components\ComponentAbstract;
 use Okipa\LaravelBootstrapComponents\Components\Form\Abstracts\FormAbstract;
 use Okipa\LaravelBootstrapComponents\Tests\BootstrapComponentsTestCase;
 use Okipa\LaravelBootstrapComponents\Tests\Fakers\UsersFaker;
+use RuntimeException;
 
 abstract class InputTestAbstract extends BootstrapComponentsTestCase
 {
@@ -84,7 +85,7 @@ protected function getComponentKey(): string
 
     abstract protected function getCustomComponent(): ComponentAbstract;
 
-    public function testSetPrependOverridesDefault(): void
+    public function testSetPrependReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -125,7 +126,7 @@ public function testSetCustomAppend(): void
         self::assertStringContainsString('<span class="input-group-text">default-append</span>', $html);
     }
 
-    public function testSetAppendOverridesDefault(): void
+    public function testSetAppendReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -172,7 +173,7 @@ public function testSetCustomCaption(): void
         self::assertStringContainsString('class="caption form-text text-muted">default-caption', $html);
     }
 
-    public function testSetCaptionOverridesDefault(): void
+    public function testSetCaptionReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -223,34 +224,24 @@ public function testSetValueFromClosureWithDisabledMultilingual(): void
 
     public function testOldValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => 'old-value'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($value)->toHtml();
-        self::assertStringContainsString(' value="' . $oldValue . '"', $html);
-        self::assertStringNotContainsString(' value="' . $value . '"', $html);
+        $html = $this->getComponent()->name('name')->value('custom-value')->toHtml();
+        self::assertStringContainsString(' value="old-value"', $html);
+        self::assertStringNotContainsString(' value="custom-value"', $html);
     }
 
     public function testOldArrayValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => [0 => $oldValue]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => ['old-value']])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name[0]')->value($value)->toHtml();
-        self::assertStringContainsString(' value="' . $oldValue . '"', $html);
-        self::assertStringNotContainsString(' value="' . $value . '"', $html);
+        $html = $this->getComponent()->name('name[0]')->value('custom-value')->toHtml();
+        self::assertStringContainsString(' value="old-value"', $html);
+        self::assertStringNotContainsString(' value="custom-value"', $html);
     }
 
     public function testSetLabel(): void
@@ -302,7 +293,7 @@ public function testSetCustomLabelPositionedAbove(): void
         self::assertLessThan($labelPosition, $inputPosition);
     }
 
-    public function testSetLabelPositionedAboveOverridesDefault(): void
+    public function testSetLabelPositionedAboveReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -368,22 +359,22 @@ public function testSetCustomDisplaySuccess(): void
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $errors = app(MessageBag::class)->add('other_name', 'Dummy error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('other_name', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->render(compact('errors'));
         self::assertStringContainsString('is-valid', $html);
         self::assertStringContainsString('<div class="valid-feedback d-block">', $html);
         self::assertStringContainsString(__('Field correctly filled.'), $html);
     }
 
-    public function testSetDisplaySuccessOverridesDefault(): void
+    public function testSetDisplaySuccessReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $errors = app(MessageBag::class)->add('other_name', 'Dummy error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('other_name', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->displaySuccess(false)->render(compact('errors'));
         self::assertStringNotContainsString('is-valid', $html);
         self::assertStringNotContainsString('<div class="valid-feedback d-block">', $html);
@@ -396,22 +387,36 @@ public function testSetCustomDisplayFailure(): void
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $errors = app(MessageBag::class)->add('name', 'Dummy error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('name', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->render(compact('errors'));
         self::assertStringContainsString('is-invalid', $html);
         self::assertStringContainsString('<div class="invalid-feedback d-block">', $html);
         self::assertStringContainsString($errors->first('name'), $html);
     }
 
-    public function testSetDisplayFailureOverridesDefault(): void
+    public function testDisplayFailureWithSpecificErrorBag(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $errors = app(MessageBag::class)->add('name', 'Dummy error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('name', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('test', $messageBag);
+        $html = $this->getComponent()->name('name')->displayFailure(true)->errorBag('test')->render(compact('errors'));
+        self::assertStringContainsString('is-invalid', $html);
+        self::assertStringContainsString('<div class="invalid-feedback d-block">', $html);
+        self::assertStringContainsString($errors->test->first('name'), $html);
+    }
+
+    public function testSetDisplayFailureReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $messageBag = app(MessageBag::class)->add('name', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name')->displayFailure(false)->render(compact('errors'));
         self::assertStringNotContainsString('is-invalid', $html);
         self::assertStringNotContainsString('<div class="invalid-feedback d-block">', $html);
@@ -420,8 +425,8 @@ public function testSetDisplayFailureOverridesDefault(): void
 
     public function testDisplayFailureWithArrayName(): void
     {
-        $errors = app(MessageBag::class)->add('name.0', 'Dummy error message.');
-        session()->put('errors', $errors);
+        $messageBag = app(MessageBag::class)->add('name.0', 'Dummy error message.');
+        $errors = app(ViewErrorBag::class)->put('default', $messageBag);
         $html = $this->getComponent()->name('name[0]')->render(compact('errors'));
         self::assertStringContainsString('is-invalid', $html);
         self::assertStringContainsString('<div class="invalid-feedback d-block">', $html);
@@ -480,15 +485,24 @@ public function testSetCustomContainerClasses(): void
         self::assertStringContainsString('class="component-container default container classes"', $html);
     }
 
-    public function testSetContainerClassesOverridesDefault(): void
+    public function testSetContainerClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->containerClasses(['custom', 'container', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component-container custom container classes"', $html);
-        self::assertStringNotContainsString('class="component-container form-group default container classes"', $html);
+        $html = $this->getComponent()->name('name')->containerClasses(['merged'], true)->toHtml();
+        self::assertStringContainsString('class="component-container default container classes merged"', $html);
+    }
+
+    public function testSetContainerClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->containerClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component-container replaced"', $html);
     }
 
     public function testSetCustomComponentClasses(): void
@@ -501,15 +515,24 @@ public function testSetCustomComponentClasses(): void
         self::assertStringContainsString('class="component form-control default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault(): void
+    public function testSetComponentClassesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->componentClasses(['merged'], true)->toHtml();
+        self::assertStringContainsString('class="component form-control default component classes merged"', $html);
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component form-control custom component classes"', $html);
-        self::assertStringNotContainsString('class="component form-control default component classes"', $html);
+        $html = $this->getComponent()->name('name')->componentClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component form-control replaced"', $html);
     }
 
     public function testSetCustomContainerHtmlAttributes(): void
@@ -519,24 +542,27 @@ public function testSetCustomContainerHtmlAttributes(): void
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()->name('name')->toHtml();
-        self::assertStringContainsString(
-            'default="container" html="attributes">',
-            $html
+        self::assertStringContainsString('default="container" html="attributes">', $html);
+    }
+
+    public function testSetContainerHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
         );
+        $html = $this->getComponent()->name('name')->containerHtmlAttributes(['with' => 'merged'], true)->toHtml();
+        self::assertStringContainsString('default="container" html="attributes" with="merged">', $html);
     }
 
-    public function testSetContainerHtmlAttributesOverridesDefault(): void
+    public function testSetContainerHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()
-            ->name('name')
-            ->containerHtmlAttributes(['custom' => 'container', 'html' => 'attributes'])
-            ->toHtml();
-        self::assertStringContainsString('custom="container" html="attributes">', $html);
-        self::assertStringNotContainsString('default="container" html="attributes">', $html);
+        $html = $this->getComponent()->name('name')->containerHtmlAttributes(['replaces' => 'default'])->toHtml();
+        self::assertStringContainsString('replaces="default">', $html);
     }
 
     public function testSetCustomComponentHtmlAttributes(): void
@@ -549,17 +575,31 @@ public function testSetCustomComponentHtmlAttributes(): void
         self::assertStringContainsString('default="component" html="attributes">', $html);
     }
 
-    public function testSetComponentHtmlAttributesOverridesDefault(): void
+    public function testSetComponentHtmlAttributesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')
+        $html = $this->getComponent()
+            ->name('name')
+            ->value(null)
+            ->componentHtmlAttributes(['with' => 'merged'], true)
+            ->toHtml();
+        self::assertStringContainsString('default="component" html="attributes" with="merged">', $html);
+    }
+
+    public function testSetComponentHtmlAttributesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()
+            ->name('name')
             ->value(null)
-            ->componentHtmlAttributes(['custom' => 'component', 'html' => 'attributes'])
+            ->componentHtmlAttributes(['replaces' => 'default'])
             ->toHtml();
-        self::assertStringContainsString('custom="component" html="attributes">', $html);
-        self::assertStringNotContainsString('default="component" html="attributes">', $html);
+        self::assertStringContainsString('replaces="default">', $html);
     }
 }
diff --git a/tests/Unit/Form/Abstracts/SelectTestAbstract.php b/tests/Unit/Form/Abstracts/SelectTestAbstract.php
index 8b031212..ad2af649 100644
--- a/tests/Unit/Form/Abstracts/SelectTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/SelectTestAbstract.php
@@ -235,10 +235,7 @@ public function testOldValue(): void
         $model = $users->get(1);
         $old = $users->get(2);
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($old) {
-                $request = request()->merge(['name' => (string) $old->id]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => (string) $old->id])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()
@@ -268,10 +265,7 @@ public function testOldArrayValue(): void
         $model = $users->get(1);
         $old = $users->get(2);
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($old) {
-                $request = request()->merge(['name' => [0 => (string) $old->id]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => [0 => (string) $old->id]])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()
@@ -503,10 +497,7 @@ public function testOldMultipleValue(): void
         $selectedCompanies = $chunk[1];
         $oldCompanies = array_map(static fn($id) => (string) $id, $chunk[2]);
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldCompanies) {
-                $request = request()->merge(['companies' => $oldCompanies]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['companies' => $oldCompanies])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()->name('companies')
@@ -539,10 +530,7 @@ public function testOldMultipleArrayValue(): void
         $selectedCompanies = $chunk[1];
         $oldCompanies = array_map(static fn($id) => (string) $id, $chunk[2]);
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldCompanies) {
-                $request = request()->merge(['companies' => [0 => $oldCompanies]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['companies' => [0 => $oldCompanies]])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()->name('companies[0]')
@@ -578,7 +566,7 @@ public function testSetCustomLabelPositionedAbove(): void
         self::assertLessThan($labelPosition, $inputPosition);
     }
 
-    public function testSetLabelPositionedAboveOverridesDefault(): void
+    public function testSetLabelPositionedAboveReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -700,14 +688,23 @@ public function testSetCustomComponentClasses(): void
         self::assertStringContainsString('class="component custom-select default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault(): void
+    public function testSetComponentClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->name('name')->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component custom-select custom component classes"', $html);
-        self::assertStringNotContainsString('class="component custom-select default component classes"', $html);
+        $html = $this->getComponent()->name('name')->componentClasses(['merged'], true)->toHtml();
+        self::assertStringContainsString('class="component custom-select default component classes merged"', $html);
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->name('name')->componentClasses(['replaced'])->toHtml();
+        self::assertStringContainsString('class="component custom-select replaced"', $html);
     }
 }
diff --git a/tests/Unit/Form/Abstracts/TemporalTestAbstract.php b/tests/Unit/Form/Abstracts/TemporalTestAbstract.php
index db3c1e91..d7541f3a 100644
--- a/tests/Unit/Form/Abstracts/TemporalTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/TemporalTestAbstract.php
@@ -3,8 +3,8 @@
 namespace Okipa\LaravelBootstrapComponents\Tests\Unit\Form\Abstracts;
 
 use Carbon\Carbon;
-use RuntimeException;
 use Okipa\LaravelBootstrapComponents\Components\Form\Abstracts\TemporalAbstract;
+use RuntimeException;
 
 abstract class TemporalTestAbstract extends InputTestAbstract
 {
@@ -51,7 +51,7 @@ public function testSetCustomFormat(): void
         self::assertStringContainsString($user->published_at->format('d/m/Y H-i-s'), $html);
     }
 
-    public function testSetFormatOverridesDefault(): void
+    public function testSetFormatReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -115,10 +115,7 @@ public function testOldValue(): void
         $oldValue = $this->faker->dateTime->format($this->getFormat());
         $value = $this->faker->dateTime->format($this->getFormat());
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => $oldValue])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()->name('name')->value($value)->toHtml();
@@ -131,10 +128,7 @@ public function testOldArrayValue(): void
         $oldValue = $this->faker->dateTime->format($this->getFormat());
         $value = $this->faker->dateTime->format($this->getFormat());
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => [0 => $oldValue]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => [0 => $oldValue]])->flash(),
         ]);
         $this->call('GET', 'test');
         $html = $this->getComponent()->name('name[0]')->value($value)->toHtml();
diff --git a/tests/Unit/Form/Abstracts/TextareaTestAbstract.php b/tests/Unit/Form/Abstracts/TextareaTestAbstract.php
index e8b5a7dd..242fd740 100644
--- a/tests/Unit/Form/Abstracts/TextareaTestAbstract.php
+++ b/tests/Unit/Form/Abstracts/TextareaTestAbstract.php
@@ -54,34 +54,24 @@ public function testSetValueFromClosureWithDisabledMultilingual(): void
 
     public function testOldValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => $oldValue]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => 'old-value'])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value($value)->toHtml();
-        self::assertStringContainsString($oldValue . '</textarea>', $html);
-        self::assertStringNotContainsString($value . '</textarea>', $html);
+        $html = $this->getComponent()->name('name')->value('custom-value')->toHtml();
+        self::assertStringContainsString('old-value</textarea>', $html);
+        self::assertStringNotContainsString('custom-value</textarea>', $html);
     }
 
     public function testOldArrayValue(): void
     {
-        $oldValue = 'old-value';
-        $value = 'custom-value';
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValue) {
-                $request = request()->merge(['name' => [0 => $oldValue]]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => ['old-value']])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name[0]')->value($value)->toHtml();
-        self::assertStringContainsString($oldValue . '</textarea>', $html);
-        self::assertStringNotContainsString($value . '</textarea>', $html);
+        $html = $this->getComponent()->name('name[0]')->value('custom-value')->toHtml();
+        self::assertStringContainsString('old-value</textarea>', $html);
+        self::assertStringNotContainsString('custom-value</textarea>', $html);
     }
 
     public function testSetCustomLabelPositionedAbove(): void
@@ -96,7 +86,7 @@ public function testSetCustomLabelPositionedAbove(): void
         self::assertLessThan($labelPosition, $inputPosition);
     }
 
-    public function testSetLabelPositionedAboveOverridesDefault(): void
+    public function testSetLabelPositionedAboveReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -191,15 +181,14 @@ public function testLocalizedOldValue(): void
             $values[$locale] = 'custom-value-' . $locale;
         }
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValues) {
-                $request = request()->merge(['name' => $oldValues]);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge(['name' => $oldValues])->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->locales($locales)->value(function ($locale) use ($values) {
-            return $values . '-' . $locale;
-        })->toHtml();
+        $html = $this->getComponent()
+            ->name('name')
+            ->locales($locales)
+            ->value(fn($locale) => $values . '-' . $locale)
+            ->toHtml();
         foreach ($locales as $locale) {
             self::assertStringContainsString($oldValues[$locale] . '</textarea>', $html);
             self::assertStringNotContainsString($values[$locale] . '</textarea>', $html);
@@ -220,15 +209,10 @@ public function testLocalizedOldValueFromCustomMultilingualResolver(): void
             $values[$locale] = 'test-custom-value-' . $locale;
         }
         $this->app['router']->get('test', [
-            'middleware' => 'web', 'uses' => function () use ($oldValues) {
-                $request = request()->merge($oldValues);
-                $request->flash();
-            },
+            'middleware' => 'web', 'uses' => fn() => request()->merge($oldValues)->flash(),
         ]);
         $this->call('GET', 'test');
-        $html = $this->getComponent()->name('name')->value(function ($locale) use ($values) {
-            return $values[$locale];
-        })->toHtml();
+        $html = $this->getComponent()->name('name')->value(fn($locale) => $values[$locale])->toHtml();
         foreach ($resolverLocales as $resolverLocale) {
             self::assertStringContainsString($oldValues['name_' . $resolverLocale] . '</textarea>', $html);
         }
diff --git a/tests/Unit/Media/Abstracts/ImageTestAbstract.php b/tests/Unit/Media/Abstracts/ImageTestAbstract.php
index 5b031e6c..48094547 100644
--- a/tests/Unit/Media/Abstracts/ImageTestAbstract.php
+++ b/tests/Unit/Media/Abstracts/ImageTestAbstract.php
@@ -4,43 +4,43 @@
 
 abstract class ImageTestAbstract extends MediaTestAbstract
 {
-    public function testSetLinkUrl()
+    public function testSetLinkUrl(): void
     {
         $html = image()->linkUrl('custom-url')->toHtml();
         self::assertStringContainsString('href="custom-url"', $html);
     }
 
-    public function testSetNoLinkUrl()
+    public function testSetNoLinkUrl(): void
     {
         $html = image()->toHtml();
         self::assertStringNotContainsString('href="', $html);
     }
 
-    public function testSetNotLinkTitle()
+    public function testSetNotLinkTitle(): void
     {
         $html = image()->toHtml();
         self::assertStringNotContainsString('title="', $html);
     }
 
-    public function testSetNoLinkTitleWithLabel()
+    public function testSetNoLinkTitleWithLabel(): void
     {
         $html = image()->label('custom-label')->toHtml();
         self::assertStringContainsString('title="custom-label"', $html);
     }
 
-    public function testSetNoLinkTitleWithAlt()
+    public function testSetNoLinkTitleWithAlt(): void
     {
         $html = image()->alt('custom-alt')->toHtml();
         self::assertStringContainsString('title="custom-alt"', $html);
     }
 
-    public function testSetNoLinkTitleWithLabelAndAlt()
+    public function testSetNoLinkTitleWithLabelAndAlt(): void
     {
         $html = image()->label('custom-label')->alt('custom-alt')->toHtml();
         self::assertStringContainsString('title="custom-label"', $html);
     }
 
-    public function testSetLinkTitleOverridesDefault()
+    public function testSetLinkTitleReplacesDefault(): void
     {
         $html = image()->label('custom-label')
             ->linkTitle('custom-title')
@@ -49,74 +49,74 @@ public function testSetLinkTitleOverridesDefault()
         self::assertStringContainsString('title="custom-title"', $html);
     }
 
-    public function testSetNoAlt()
+    public function testSetNoAlt(): void
     {
         $html = image()->toHtml();
         self::assertStringNotContainsString('alt="', $html);
     }
 
-    public function testNoAltWithLabel()
+    public function testNoAltWithLabel(): void
     {
         $html = image()->label('custom-label')->toHtml();
         self::assertStringContainsString('alt="custom-label"', $html);
     }
 
-    public function testNoAltWithLinkTitle()
+    public function testNoAltWithLinkTitle(): void
     {
         $html = image()->linkTitle('custom-title')->toHtml();
         self::assertStringContainsString('alt="custom-title"', $html);
     }
 
-    public function testNoAltWithLabelAndLinkTitle()
+    public function testNoAltWithLabelAndLinkTitle(): void
     {
         $html = image()->label('custom-label')->linkTitle('custom-title')->toHtml();
         self::assertStringContainsString('alt="custom-label"', $html);
     }
 
-    public function testSetAltOverridesDefault()
+    public function testSetAltReplacesDefault(): void
     {
         $html = image()->label('custom-label')->linkTitle('custom-title')->alt('custom-alt')->toHtml();
         self::assertStringContainsString('alt="custom-alt"', $html);
     }
 
-    public function testSetNoWidth()
+    public function testSetNoWidth(): void
     {
         $html = image()->toHtml();
         self::assertStringNotContainsString('width="', $html);
     }
 
-    public function testSetWidth()
+    public function testSetWidth(): void
     {
         $html = image()->width(100)->toHtml();
         self::assertStringContainsString('width="100"', $html);
     }
 
-    public function testSetNoHeight()
+    public function testSetNoHeight(): void
     {
         $html = image()->toHtml();
         self::assertStringNotContainsString('height="', $html);
     }
 
-    public function testSetHeight()
+    public function testSetHeight(): void
     {
         $html = image()->height(150)->toHtml();
         self::assertStringContainsString('height="150"', $html);
     }
 
-    public function testDefaultComponentId()
+    public function testDefaultComponentId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<img id="', $html);
     }
 
-    public function testSetComponentId()
+    public function testSetComponentId(): void
     {
         $customComponentId = 'custom-component-id';
         $html = $this->getComponent()->componentId($customComponentId)->toHtml();
         self::assertStringContainsString('<img id="' . $customComponentId . '"', $html);
     }
 
-    public function testSetCustomLinkClasses()
+    public function testSetCustomLinkClasses(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -126,18 +126,27 @@ public function testSetCustomLinkClasses()
         self::assertStringContainsString('class="component-link default link classes"', $html);
     }
 
-    public function testSetLinkClassesOverridesDefault()
+    public function testSetLinkClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->linkClasses(['custom', 'link', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component-link custom link classes"', $html);
-        self::assertStringNotContainsString('class="component-link default link classes"', $html);
+        $html = $this->getComponent()->linkClasses(['with', 'merged'], true)->toHtml();
+        self::assertStringContainsString('class="component-link default link classes with merged"', $html);
     }
 
-    public function testSetCustomLinkHtmlAttributes()
+    public function testSetLinkClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->linkClasses(['replaces', 'default'])->toHtml();
+        self::assertStringContainsString('class="component-link replaces default"', $html);
+    }
+
+    public function testSetCustomLinkHtmlAttributes(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -147,16 +156,27 @@ public function testSetCustomLinkHtmlAttributes()
         self::assertStringContainsString('default="link" html="attributes">', $html);
     }
 
-    public function testSetLinkHtmlAttributesOverridesDefault()
+    public function testSetLinkHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()
+            ->linkHtmlAttributes(['with' => 'merged'], true)
+            ->toHtml();
+        self::assertStringContainsString('default="link" html="attributes" with="merged">', $html);
+    }
+
+    public function testSetLinkHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()
-            ->linkHtmlAttributes(['custom' => 'link', 'html' => 'attributes'])
+            ->linkHtmlAttributes(['replaces' => 'default'])
             ->toHtml();
-        self::assertStringContainsString('custom="link" html="attributes">', $html);
-        self::assertStringNotContainsString('default="link" html="attributes">', $html);
+        self::assertStringContainsString('replaces="default">', $html);
     }
 }
diff --git a/tests/Unit/Media/Abstracts/MediaTestAbstract.php b/tests/Unit/Media/Abstracts/MediaTestAbstract.php
index 0db3fff7..d8660ee7 100644
--- a/tests/Unit/Media/Abstracts/MediaTestAbstract.php
+++ b/tests/Unit/Media/Abstracts/MediaTestAbstract.php
@@ -21,34 +21,34 @@ abstract protected function getComponentType(): string;
 
     abstract protected function getCustomComponent(): ComponentAbstract;
 
-    public function testHelper()
+    public function testHelper(): void
     {
         self::assertInstanceOf(get_class($this->getComponent()), $this->getHelper());
     }
 
-    public function testFacade()
+    public function testFacade(): void
     {
         self::assertInstanceOf(get_class($this->getComponent()), $this->getFacade());
     }
 
-    public function testInstance()
+    public function testInstance(): void
     {
         self::assertInstanceOf(MediaAbstract::class, $this->getComponent());
     }
 
-    public function testSetSrc()
+    public function testSetSrc(): void
     {
         $html = $this->getComponent()->src('custom-src')->toHtml();
         self::assertStringContainsString('src="custom-src">', $html);
     }
 
-    public function testNoSrc()
+    public function testNoSrc(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<source src="', $html);
     }
 
-    public function testSetCustomCaption()
+    public function testSetCustomCaption(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -63,7 +63,7 @@ protected function getComponentKey(): string
         return $this->getComponentType();
     }
 
-    public function testSetCaptionOverridesDefault()
+    public function testSetCaptionReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -74,25 +74,25 @@ public function testSetCaptionOverridesDefault()
         self::assertStringNotContainsString('class="caption form-text text-muted">default-caption', $html);
     }
 
-    public function testHideCaption()
+    public function testHideCaption(): void
     {
         $html = $this->getComponent()->caption(null)->toHtml();
         self::assertStringNotContainsString('class="caption form-text text-muted"', $html);
     }
 
-    public function testSetLabel()
+    public function testSetLabel(): void
     {
         $html = $this->getComponent()->label('custom-label')->toHtml();
         self::assertStringContainsString('<label class="d-block">custom-label</label>', $html);
     }
 
-    public function testNoLabel()
+    public function testNoLabel(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<label', $html);
     }
 
-    public function testHideLabel()
+    public function testHideLabel(): void
     {
         $html = $this->getComponent()->label(null)->toHtml();
         self::assertStringNotContainsString(
@@ -101,31 +101,31 @@ public function testHideLabel()
         );
     }
 
-    public function testSetNoContainerId()
+    public function testSetNoContainerId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<div id="', $html);
     }
 
-    public function testSetContainerId()
+    public function testSetContainerId(): void
     {
         $html = $this->getComponent()->containerId('custom-container-id')->toHtml();
         self::assertStringContainsString('<div id="custom-container-id"', $html);
     }
 
-    public function testDefaultComponentId()
+    public function testDefaultComponentId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<audio id="', $html);
     }
 
-    public function testSetComponentId()
+    public function testSetComponentId(): void
     {
         $html = $this->getComponent()->componentId('custom-component-id')->toHtml();
         self::assertStringContainsString('<audio id="custom-component-id"', $html);
     }
 
-    public function testSetCustomContainerClasses()
+    public function testSetCustomContainerClasses(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -135,18 +135,27 @@ public function testSetCustomContainerClasses()
         self::assertStringContainsString('class="component-container default container classes"', $html);
     }
 
-    public function testSetContainerClassesOverridesDefault()
+    public function testSetContainerClassesMergedToDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->containerClasses(['custom', 'container', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component-container custom container classes"', $html);
-        self::assertStringNotContainsString('class="component-container default container classes"', $html);
+        $html = $this->getComponent()->containerClasses(['with', 'merged'], true)->toHtml();
+        self::assertStringContainsString('class="component-container default container classes with merged"', $html);
     }
 
-    public function testSetCustomComponentClasses()
+    public function testSetContainerClassesReplacesDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->containerClasses(['replaces', 'default'])->toHtml();
+        self::assertStringContainsString('class="component-container replaces default"', $html);
+    }
+
+    public function testSetCustomComponentClasses(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -156,44 +165,61 @@ public function testSetCustomComponentClasses()
         self::assertStringContainsString('class="component default component classes"', $html);
     }
 
-    public function testSetComponentClassesOverridesDefault()
+    public function testSetComponentClassesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()->componentClasses(['with', 'merged'], true)->toHtml();
+        self::assertStringContainsString('class="component default component classes with merged"', $html);
+    }
+
+    public function testSetComponentClassesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
-        $html = $this->getComponent()->componentClasses(['custom', 'component', 'classes'])->toHtml();
-        self::assertStringContainsString('class="component custom component classes"', $html);
-        self::assertStringNotContainsString('class="component default component classes"', $html);
+        $html = $this->getComponent()->componentClasses(['replaces', 'default'])->toHtml();
+        self::assertStringContainsString('class="component replaces default"', $html);
     }
 
-    public function testSetCustomContainerHtmlAttributes()
+    public function testSetCustomContainerHtmlAttributes(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()->toHtml();
-        self::assertStringContainsString(
-            'default="container" html="attributes">',
-            $html
+        self::assertStringContainsString('default="container" html="attributes">', $html);
+    }
+
+    public function testSetContainerHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
         );
+        $html = $this->getComponent()
+            ->containerHtmlAttributes(['with' => 'merged'], true)
+            ->toHtml();
+        self::assertStringContainsString('default="container" html="attributes" with="merged">', $html);
     }
 
-    public function testSetContainerHtmlAttributesOverridesDefault()
+    public function testSetContainerHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()
-            ->containerHtmlAttributes(['custom' => 'container', 'html' => 'attributes'])
+            ->containerHtmlAttributes(['replaces' => 'default'])
             ->toHtml();
-        self::assertStringContainsString('custom="container" html="attributes">', $html);
-        self::assertStringNotContainsString('default="container" html="attributes">', $html);
+        self::assertStringContainsString('replaces="default">', $html);
     }
 
-    public function testSetCustomComponentHtmlAttributes()
+    public function testSetCustomComponentHtmlAttributes(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -203,16 +229,27 @@ public function testSetCustomComponentHtmlAttributes()
         self::assertStringContainsString('default="component" html="attributes">', $html);
     }
 
-    public function testSetComponentHtmlAttributesOverridesDefault()
+    public function testSetComponentHtmlAttributesMergedToDefault(): void
+    {
+        config()->set(
+            'bootstrap-components.components.' . $this->getComponentKey(),
+            get_class($this->getCustomComponent())
+        );
+        $html = $this->getComponent()
+            ->componentHtmlAttributes(['with' => 'merged'], true)
+            ->toHtml();
+        self::assertStringContainsString('default="component" html="attributes" with="merged">', $html);
+    }
+
+    public function testSetComponentHtmlAttributesReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
             get_class($this->getCustomComponent())
         );
         $html = $this->getComponent()
-            ->componentHtmlAttributes(['custom' => 'component', 'html' => 'attributes'])
+            ->componentHtmlAttributes(['replaces' => 'defaults'])
             ->toHtml();
-        self::assertStringContainsString('custom="component" html="attributes">', $html);
-        self::assertStringNotContainsString('default="component" html="attributes">', $html);
+        self::assertStringContainsString('replaces="defaults">', $html);
     }
 }
diff --git a/tests/Unit/Media/Abstracts/VideoTestAbstract.php b/tests/Unit/Media/Abstracts/VideoTestAbstract.php
index 660ea818..941b0fd6 100644
--- a/tests/Unit/Media/Abstracts/VideoTestAbstract.php
+++ b/tests/Unit/Media/Abstracts/VideoTestAbstract.php
@@ -4,7 +4,7 @@
 
 abstract class VideoTestAbstract extends MediaTestAbstract
 {
-    public function testSetCustomPoster()
+    public function testSetCustomPoster(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -14,7 +14,7 @@ public function testSetCustomPoster()
         self::assertStringContainsString('poster="default-poster"', $html);
     }
 
-    public function testSetPosterOverridesDefault()
+    public function testSetPosterReplacesDefault(): void
     {
         config()->set(
             'bootstrap-components.components.' . $this->getComponentKey(),
@@ -25,19 +25,19 @@ public function testSetPosterOverridesDefault()
         self::assertStringNotContainsString('poster="default-poster"', $html);
     }
 
-    public function testNoPoster()
+    public function testNoPoster(): void
     {
         $html = video()->toHtml();
         self::assertStringNotContainsString('poster="', $html);
     }
 
-    public function testDefaultComponentId()
+    public function testDefaultComponentId(): void
     {
         $html = $this->getComponent()->toHtml();
         self::assertStringNotContainsString('<video id="', $html);
     }
 
-    public function testSetComponentId()
+    public function testSetComponentId(): void
     {
         $html = $this->getComponent()->componentId('custom-component-id')->toHtml();
         self::assertStringContainsString('<video id="custom-component-id"', $html);