[TASK] Implement RuleSet::getArrayRepresentation()

Part of #1440.

Author: oliverklee

src/RuleSet/RuleSet.php

@@ -14,6 +14,7 @@
 use Sabberworm\CSS\Position\Position;
 use Sabberworm\CSS\Position\Positionable;
 use Sabberworm\CSS\Property\Declaration;
+use Sabberworm\CSS\ShortClassNameProvider;
 
 /**
  * This class is a container for individual `Declaration`s.
@@ -31,6 +32,7 @@ class RuleSet implements CSSElement, CSSListItem, Positionable, DeclarationList
     use CommentContainer;
     use LegacyDeclarationListMethods;
     use Position;
+    use ShortClassNameProvider;
 
     /**
      * the declarations in this rule set, using the property name as the key,
@@ -345,7 +347,20 @@ static function () use ($declaration, $nextLevelFormat): string {
      */
     public function getArrayRepresentation(): array
     {
-        throw new \BadMethodCallException('`getArrayRepresentation` is not yet implemented for `' . self::class . '`');
+        $declarationsArrayRepresentation = [];
+        foreach ($this->declarations as $propertyName => $declarationForOneProperty) {
+            $declarationsArrayRepresentation[$propertyName] = \array_map(
+                function (Declaration $declaration): array {
+                    return $declaration->getArrayRepresentation();
+                },
+                $declarationForOneProperty
+            );
+        }
+
+        return [
+            'class' => $this->getShortClassName(),
+            'declarations' => $declarationsArrayRepresentation,
+        ];
     }
 
     /**

tests/Unit/RuleSet/RuleSetTest.php

@@ -7,6 +7,7 @@
 use PHPUnit\Framework\TestCase;
 use Sabberworm\CSS\CSSElement;
 use Sabberworm\CSS\CSSList\CSSListItem;
+use Sabberworm\CSS\Property\Declaration;
 use Sabberworm\CSS\RuleSet\RuleSet;
 
 /**
@@ -83,10 +84,53 @@ public function getLineNumberReturnsLineNumberPassedToConstructor(?int $lineNumb
     /**
      * @test
      */
-    public function getArrayRepresentationThrowsException(): void
+    public function getArrayRepresentationIncludesClassName(): void
     {
-        $this->expectException(\BadMethodCallException::class);
+        $subject = new RuleSet();
 
-        $this->subject->getArrayRepresentation();
+        $result = $subject->getArrayRepresentation();
+
+        self::assertSame('RuleSet', $result['class']);
+    }
+
+    /**
+     * @test
+     */
+    public function getArrayRepresentationIncludesDeclarations(): void
+    {
+        $subject = new RuleSet();
+        $subject->addDeclaration(new Declaration('line-height'));
+        $subject->addDeclaration(new Declaration('line-height'));
+        $subject->addDeclaration(new Declaration('color'));
+
+        $result = $subject->getArrayRepresentation();
+
+        self::assertSame(
+            [
+                'line-height' => [
+                    [
+                        'class' => 'Declaration',
+                        'propertyName' => 'line-height',
+                        'propertyValue' => null,
+                        'important' => false,
+                    ],
+                    [
+                        'class' => 'Declaration',
+                        'propertyName' => 'line-height',
+                        'propertyValue' => null,
+                        'important' => false,
+                    ],
+                ],
+                'color' => [
+                    [
+                        'class' => 'Declaration',
+                        'propertyName' => 'color',
+                        'propertyValue' => null,
+                        'important' => false,
+                    ],
+                ],
+            ],
+            $result['declarations']
+        );
     }
 }