add test

Author: taylorotwell

tests/View/ViewComponentTest.php

@@ -3,6 +3,7 @@
 namespace Illuminate\Tests\View;
 
 use Illuminate\View\Component;
+use Illuminate\View\ComponentAttributeBag;
 use PHPUnit\Framework\TestCase;
 
 class ViewComponentTest extends TestCase
@@ -18,6 +19,15 @@ public function testDataExposure()
         $this->assertSame('taylor', $variables['hello']('taylor'));
     }
 
+    public function testAttributeParentInheritance()
+    {
+        $component = new TestViewComponent;
+
+        $component->withAttributes(['class' => 'foo', 'attributes' => new ComponentAttributeBag(['class' => 'bar', 'type' => 'button'])]);
+
+        $this->assertEquals('class="foo bar" type="button"', (string) $component->attributes);
+    }
+
     public function testPublicMethodsWithNoArgsAreConvertedToStringableCallablesInvokedAndNotCached()
     {
         $component = new TestSampleViewComponent;