add simple MailControllerTest (index only)

tests/Unit/Http/Controllers/Admin/MailControllerTest.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace Tests\Unit\Http\Controllers;
+
+use Mockery as m;
+use Prologue\Alerts\AlertsMessageBag;
+use Illuminate\Contracts\Console\Kernel;
+use Illuminate\Contracts\Encryption\Encrypter;
+use Illuminate\Contracts\Config\Repository as ConfigRepository;
+use Pterodactyl\Http\Controllers\Admin\Settings\MailController;
+use Pterodactyl\Contracts\Repository\SettingsRepositoryInterface;
+
+class MailControllerTest extends ControllerTestCase
+{
+    /**
+     * @var \Prologue\Alerts\AlertsMessageBag
+     */
+    private $alert;
+
+    /**
+     * @var \Illuminate\Contracts\Config\Repository
+     */
+    private $configRepository;
+
+    /**
+     * @var \Illuminate\Contracts\Encryption\Encrypter
+     */
+    private $encrypter;
+
+    /**
+     * @var \Illuminate\Contracts\Console\Kernel
+     */
+    private $kernel;
+
+    /**
+     * @var \Pterodactyl\Contracts\Repository\SettingsRepositoryInterface
+     */
+    private $settingsRepositoryInterface;
+
+    /**
+     * Setup tests.
+     */
+    public function setUp()
+    {
+        parent::setUp();
+
+        $this->alert = m::mock(AlertsMessageBag::class);
+        $this->configRepository = m::mock(ConfigRepository::class);
+        $this->encrypter = m::mock(Encrypter::class);
+        $this->kernel = m::mock(Kernel::class);
+        $this->settingsRepositoryInterface = m::mock(SettingsRepositoryInterface::class);
+    }
+
+    /**
+     * Test the mail controller for viewing mail settings page.
+     */
+    public function testIndex()
+    {
+        $this->configRepository->shouldReceive('get');
+
+        $response = $this->getController()->index();
+
+        $this->assertIsViewResponse($response);
+        $this->assertViewNameEquals('admin.settings.mail', $response);
+    }
+
+    /**
+     * Prepare a MailController using our mocks.
+     *
+     * @return MailController
+     */
+    public function getController()
+    {
+        return new MailController(
+            $this->alert,
+            $this->configRepository,
+            $this->encrypter,
+            $this->kernel,
+            $this->settingsRepositoryInterface
+        );
+    }
+}