database/factories/RoomFactory.php

@@ -17,7 +17,7 @@ class RoomFactory extends Factory
     public function definition(): array
     {
         return [
-            'name' => 'Room '.fake()->numberBetween(7, 500),
+            'name' => 'Room '.fake()->unique()->numberBetween(7, 500),
             'description' => fake()->sentence(),
         ];
     }

tests/Feature/Pages/EntriesIndexTest.php

@@ -90,9 +90,9 @@ it('shows existing entries in a table', function () {
         $response->
         assertSeeInOrder([
             '<td',
-            $entry->student->full_name(true),
+            e($entry->student->full_name(true)),
             $entry->student->grade,
-            $entry->audition->name,
+            e($entry->audition->name),
             '</td>',
         ], false);
     }