fix kernel and preview configuration fr example preview

Tests/Application/ExampleTestBundle/Resources/config/services.yaml

@@ -97,3 +97,14 @@ services:
             - Sulu\Bundle\ContentBundle\Tests\Application\ExampleTestBundle\Entity\Example
         tags:
             - 'massive_search.metadata.provider'
+
+    example_test.example_preview_object_provider:
+        class: Sulu\Bundle\ContentBundle\Content\Infrastructure\Sulu\Preview\ContentObjectProvider
+        arguments:
+            - '@doctrine.orm.entity_manager'
+            - '@sulu_content.content_resolver'
+            - '@sulu_content.content_data_mapper'
+            - Sulu\Bundle\ContentBundle\Tests\Application\ExampleTestBundle\Entity\Example
+        tags:
+            - { name: 'sulu.context', context: 'admin' }
+            - { name: 'sulu_preview.object_provider', provider-key: 'examples' }

Tests/Application/Kernel.php

@@ -47,6 +47,11 @@ public function registerContainerConfiguration(LoaderInterface $loader)
     {
         parent::registerContainerConfiguration($loader);
         $loader->load(__DIR__ . '/config/config_' . $this->getContext() . '.yml');
+
+        $devConfigFile = __DIR__ . '/config/config_' . $this->getContext() . '_' . $this->getEnvironment() . '.yml';
+        if (is_file($devConfigFile)) {
+            $loader->load($devConfigFile);
+        }
     }
 
     protected function getKernelParameters()
@@ -59,3 +64,6 @@ protected function getKernelParameters()
         return $parameters;
     }
 }
+
+// Needed for preview PreviewKernelFactory
+class_alias(Kernel::class, 'App\\Kernel');

Tests/Application/PreviewKernel.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace Sulu\Bundle\ContentBundle\Tests\Application;
+
+use Sulu\Bundle\PreviewBundle\Preview\Renderer\PreviewKernel as SuluPreviewKernel;
+
+class PreviewKernel extends SuluPreviewKernel
+{
+    public function getProjectDir(): string
+    {
+        return __DIR__;
+    }
+}

Tests/Application/PreviewKernelFactory.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Sulu\Bundle\ContentBundle\Tests\Application;
+
+use Sulu\Bundle\PreviewBundle\Preview\Renderer\KernelFactoryInterface;
+use Sulu\Component\HttpKernel\SuluKernel;
+
+class PreviewKernelFactory implements KernelFactoryInterface
+{
+    public function create($environment)
+    {
+        $kernel = new PreviewKernel($environment, 'dev' === $environment, SuluKernel::CONTEXT_WEBSITE);
+        $kernel->boot();
+
+        return $kernel;
+    }
+}

Tests/Application/config/config_admin.yml

@@ -3,3 +3,7 @@ imports:
 
 framework:
     router: { resource: "%kernel.project_dir%/config/routing_admin.yml" }
+
+services:
+    sulu_preview.preview.kernel_factory:
+        class: Sulu\Bundle\ContentBundle\Tests\Application\PreviewKernelFactory

Tests/Application/config/config_admin_dev.yml

@@ -0,0 +1,4 @@
+security:
+    providers:
+        testprovider:
+            id: sulu_security.user_provider

Tests/Application/config/webspaces/sulu.io.xml

@@ -19,7 +19,7 @@
 
     <default-templates>
         <default-template type="homepage">default</default-template>
-        <default-template type="page">default-2</default-template>
+        <default-template type="page">default</default-template>
     </default-templates>
 
     <templates>

Tests/Application/templates/pages/default.html.twig

@@ -1,5 +1,5 @@
 {% block content %}
     <h1>{{ content.title }}</h1>
 
-    {{ content.description|raw }}
+    {{ content.article|raw }}
 {% endblock %}