diff --git a/tests/Feature/Backstage/ViewConcertListTest.php b/tests/Feature/Backstage/ViewConcertListTest.php
index 63c1ebb..da01d9a 100644
--- a/tests/Feature/Backstage/ViewConcertListTest.php
+++ b/tests/Feature/Backstage/ViewConcertListTest.php
@@ -16,6 +16,23 @@ class ViewConcertListTest extends TestCase
 {
     use DatabaseMigrations;
 
+    protected function setUp()
+    {
+        parent::setUp();
+
+        TestResponse::macro('data', function ($key) {
+            return $this->original->getData()[$key];
+        });
+
+        Collection::macro('assertContains', function ($value) {
+            Assert::assertTrue($this->contains($value), "Failed asserting that the collection contains the specified value.");
+        });
+
+        Collection::macro('assertNotContains', function ($value) {
+            Assert::assertFalse($this->contains($value), "Failed asserting that the collection does not contain the specified value.");
+        });
+    }
+
     /** @test */
     function guests_cannot_view_a_promoters_concert_list()
     {
@@ -39,9 +56,9 @@ class ViewConcertListTest extends TestCase
         $response = $this->actingAs($user)->get('/backstage/concerts');
 
         $response->assertStatus(200);
-        $this->assertTrue($response->original->getData()['concerts']->contains($concertA));
-        $this->assertTrue($response->original->getData()['concerts']->contains($concertB));
-        $this->assertTrue($response->original->getData()['concerts']->contains($concertD));
-        $this->assertFalse($response->original->getData()['concerts']->contains($concertC));
+        $response->data('concerts')->assertContains($concertA);
+        $response->data('concerts')->assertContains($concertB);
+        $response->data('concerts')->assertContains($concertD);
+        $response->data('concerts')->assertNotContains($concertC);
     }
 }