Add Color input element and ExceptionTest class. (#168)

src/Input/Base/AbstractColor.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPForge\Html\Input\Base;
+
+use InvalidArgumentException;
+
+use function is_string;
+
+abstract class AbstractColor extends AbstractInput
+{
+    protected string $type = 'color';
+
+    /**
+     * @return string the generated input tag.
+     */
+    protected function run(): string
+    {
+        $attributes = $this->attributes;
+        $value = $attributes['value'] ?? null;
+
+        /**
+         * @link https://www.w3.org/TR/2012/WD-html-markup-20120329/input.color.html#input.color.attrs.value
+         */
+        if ($value !== null && is_string($value) === false) {
+            throw new InvalidArgumentException(
+                sprintf('%s::class widget must be a string or null value.', static::class)
+            );
+        }
+
+        return parent::run();
+    }
+}

src/Input/Base/AbstractHidden.php

@@ -5,7 +5,6 @@
 namespace PHPForge\Html\Input\Base;
 
 use InvalidArgumentException;
-use PHPForge\Html\Helper\Encode;
 
 use function array_key_exists;
 use function is_string;
@@ -37,7 +36,7 @@ protected function run(): string
         foreach (static::NOT_ALLOWED_ATTRIBUTES as $attribute) {
             if (array_key_exists($attribute, $attributes)) {
                 throw new InvalidArgumentException(
-                    sprintf('%s::class widget must not be "%s" attribute.', static::class, Encode::content($attribute))
+                    sprintf('%s::class widget must not be "%s" attribute.', static::class, $attribute)
                 );
             }
         }

src/Input/Color.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPForge\Html\Input;
+
+/**
+ * The input element with a type attribute whose value is "color" represents a color-well control, for setting the
+ * element’s value to a string representing a simple color.
+ *
+ * @link https://www.w3.org/TR/2012/WD-html-markup-20120329/input.color.html#input.color
+ */
+final class Color extends Base\AbstractColor
+{
+}

tests/Input/Color/ExceptionTest.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPForge\Html\Tests\Input\Color;
+
+use InvalidArgumentException;
+use PHPForge\Html\Input\Color;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @psalm-suppress PropertyNotSetInConstructor
+ */
+final class ExceptionTest extends TestCase
+{
+    public function testValue(): void
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('Color::class widget must be a string or null value.');
+
+        Color::widget()->value([])->render();
+    }
+}