[11.x] Allow TestComponent to be macroable (#54359)

* macro test component

* test

src/Illuminate/Testing/TestComponent.php

@@ -2,12 +2,17 @@
 
 namespace Illuminate\Testing;
 
+use Illuminate\Support\Traits\Macroable;
 use Illuminate\Testing\Assert as PHPUnit;
 use Illuminate\Testing\Constraints\SeeInOrder;
 use Stringable;
 
 class TestComponent implements Stringable
 {
+    use Macroable {
+        __call as macroCall;
+    }
+
     /**
      * The original component.
      *
@@ -162,6 +167,10 @@ public function __get($attribute)
      */
     public function __call($method, $parameters)
     {
+        if (static::hasMacro($method)) {
+            return $this->macroCall($method, $parameters);
+        }
+
         return $this->component->{$method}(...$parameters);
     }
 }

tests/Foundation/Testing/Concerns/InteractsWithViewsTest.php

@@ -3,6 +3,7 @@
 namespace Illuminate\Tests\Foundation\Testing\Concerns;
 
 use Illuminate\Foundation\Testing\Concerns\InteractsWithViews;
+use Illuminate\Testing\TestComponent;
 use Illuminate\View\Component;
 use Orchestra\Testbench\TestCase;
 
@@ -40,4 +41,21 @@ public function render()
         $this->assertSame('hello', $component->speak());
         $component->assertSee('content');
     }
+
+    public function testComponentMacroable()
+    {
+        TestComponent::macro('foo', fn (): string => 'bar');
+
+        $exampleComponent = new class extends Component
+        {
+            public function render()
+            {
+                return 'rendered content';
+            }
+        };
+
+        $component = $this->component(get_class($exampleComponent));
+
+        $this->assertSame('bar', $component->foo());
+    }
 }