diff --git a/tests/EventRepositoryContractTest.php b/tests/EventRepositoryContractTest.php
new file mode 100644
index 0000000..d763d11
--- /dev/null
+++ b/tests/EventRepositoryContractTest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Tests;
+
+use App\EventRepository;
+
+trait EventRepositoryContractTest
+{
+    private EventRepository $repository;
+
+    /** @test */
+    public function should_only_return_attendees_with_a_yes_rsvp(): void
+    {
+        $attendees = $this->repository->getConfirmedAttendees();
+
+        $this->assertCount(3, $attendees);
+    }
+
+    /** @test */
+    public function should_not_return_event_organisers(): void
+    {
+        $attendees = $this->repository->getConfirmedAttendees();
+
+        $this->assertCount(3, $attendees);
+    }
+}
diff --git a/tests/FakeEventRepositoryTest.php b/tests/FakeEventRepositoryTest.php
index a18bf13..2c68065 100644
--- a/tests/FakeEventRepositoryTest.php
+++ b/tests/FakeEventRepositoryTest.php
@@ -7,6 +7,8 @@ use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 
 final class FakeEventRepositoryTest extends KernelTestCase
 {
+    use EventRepositoryContractTest;
+
     private EventRepository $repository;
 
     public function setUp(): void
@@ -15,20 +17,4 @@ final class FakeEventRepositoryTest extends KernelTestCase
 
         $this->repository = static::$container->get(EventRepository::class);
     }
-
-    /** @test */
-    public function should_only_return_attendees_with_a_yes_rsvp(): void
-    {
-        $attendees = $this->repository->getConfirmedAttendees();
-
-        $this->assertCount(3, $attendees);
-    }
-
-    /** @test */
-    public function should_not_return_event_organisers(): void
-    {
-        $attendees = $this->repository->getConfirmedAttendees();
-
-        $this->assertCount(3, $attendees);
-    }
 }