[TASK] Implement Charset::getArrayRepresentation() (#1468)

Part of #1440.

Author: oliverklee

src/Property/Charset.php

@@ -8,6 +8,7 @@
 use Sabberworm\CSS\OutputFormat;
 use Sabberworm\CSS\Position\Position;
 use Sabberworm\CSS\Position\Positionable;
+use Sabberworm\CSS\ShortClassNameProvider;
 use Sabberworm\CSS\Value\CSSString;
 
 /**
@@ -22,6 +23,7 @@ class Charset implements AtRule, Positionable
 {
     use CommentContainer;
     use Position;
+    use ShortClassNameProvider;
 
     /**
      * @var CSSString
@@ -79,6 +81,9 @@ public function atRuleArgs(): CSSString
      */
     public function getArrayRepresentation(): array
     {
-        throw new \BadMethodCallException('`getArrayRepresentation` is not yet implemented for `' . self::class . '`');
+        return [
+            'class' => $this->getShortClassName(),
+            'charset' => $this->charset->getArrayRepresentation(),
+        ];
     }
 }

tests/Unit/Property/CharsetTest.php

@@ -35,10 +35,25 @@ public function implementsCSSListItem(): void
     /**
      * @test
      */
-    public function getArrayRepresentationThrowsException(): void
+    public function getArrayRepresentationIncludesClassName(): void
     {
-        $this->expectException(\BadMethodCallException::class);
+        $result = $this->subject->getArrayRepresentation();
 
-        $this->subject->getArrayRepresentation();
+        self::assertArrayHasKey('class', $result);
+        self::assertSame('Charset', $result['class']);
+    }
+
+    /**
+     * @test
+     */
+    public function getArrayRepresentationIncludesCharset(): void
+    {
+        $charset = 'iso-8859-15';
+        $subject = new Charset(new CSSString($charset));
+
+        $result = $subject->getArrayRepresentation();
+
+        self::assertArrayHasKey('charset', $result);
+        self::assertSame(['class' => 'CSSString', 'contents' => $charset], $result['charset']);
     }
 }