TASK: Ensure that ComponentType instances are considered equivalents of themselves

Author: grebaldi

src/TypeSystem/Type/ComponentType/ComponentType.php

@@ -40,6 +40,6 @@ public static function fromComponentDeclarationNode(ComponentDeclarationNode $co
 
     public function is(TypeInterface $other): bool
     {
-        return false;
+        return $other === $this;
     }
 }

test/Unit/TypeSystem/Type/ComponentType/ComponentTypeTest.php

@@ -59,4 +59,20 @@ public function providesNameOfTheComponent(): void
 
         $this->assertEquals('SomeComponent', $componentType->componentName);
     }
+
+    /**
+     * @test
+     * @return void
+     */
+    public function isEquivalentToItself(): void
+    {
+        $componentDeclarationNode = ComponentDeclarationNode::fromString(
+            'component SomeComponent { return "" }'
+        );
+        $componentType = ComponentType::fromComponentDeclarationNode(
+            $componentDeclarationNode
+        );
+
+        $this->assertTrue($componentType->is($componentType));
+    }
 }