Add failing test

tests/Feature/Api/Users/UsersUpdateTest.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Tests\Feature\Api\Users;
+
+use App\Models\Department;
+use App\Models\User;
+use Tests\Support\InteractsWithSettings;
+use Tests\TestCase;
+
+class UsersUpdateTest extends TestCase
+{
+    use InteractsWithSettings;
+
+    public function testSomething()
+    {
+        $this->withoutExceptionHandling();
+        $admin = User::factory()->superuser()->create();
+        $user = User::factory()->forDepartment(['name' => 'Department A'])->create();
+        $department = Department::factory()->create();
+
+        $this->actingAsForApi($admin)->patch(route('api.users.update', $user), [
+            'department_id' => ['id' => $department->id]
+        ])->assertOk();
+
+        $this->assertTrue(
+            $user->fresh()->department()->is($department),
+            'User is not associated with expected department'
+        );
+    }
+}