Add tests for delete group endpoint

tests/Feature/Groups/Api/DeleteGroupTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Tests\Feature\Groups\Api;
+
+use App\Models\Group;
+use App\Models\User;
+use Tests\Concerns\TestsPermissionsRequirement;
+use Tests\TestCase;
+
+class DeleteGroupTest extends TestCase implements TestsPermissionsRequirement
+{
+    public function testRequiresPermission()
+    {
+        $group = Group::factory()->create();
+
+        $this->actingAsForApi(User::factory()->create())
+            ->deleteJson(route('api.groups.destroy', $group))
+            ->assertForbidden();
+    }
+
+    public function testCanDeleteGroup()
+    {
+        $group = Group::factory()->create();
+
+        // only super admins can delete groups
+        $this->actingAsForApi(User::factory()->superuser()->create())
+            ->deleteJson(route('api.groups.destroy', $group))
+            ->assertStatusMessageIs('success');
+
+        $this->assertDatabaseMissing('permission_groups', ['id' => $group->id]);
+    }
+}