refactor: Split FrontController into multiple classes

Closes #177

tests/ControllerTest.php

@@ -0,0 +1,148 @@
+<?php
+/**
+ * ControllerTest class.
+ */
+
+namespace Alltube\Test;
+
+use Alltube\Config;
+use Alltube\Controller\BaseController;
+use Alltube\Controller\DownloadController;
+use Alltube\Controller\FrontController;
+use Alltube\LocaleManager;
+use Alltube\ViewFactory;
+use Exception;
+use Slim\Container;
+use Slim\Http\Environment;
+use Slim\Http\Request;
+use Slim\Http\Response;
+
+/**
+ * Abstract class used by the controller tests.
+ */
+abstract class ControllerTest extends BaseTest
+{
+    /**
+     * Slim dependency container.
+     *
+     * @var Container
+     */
+    protected $container;
+
+    /**
+     * Mock HTTP request.
+     *
+     * @var Request
+     */
+    protected $request;
+
+    /**
+     * Mock HTTP response.
+     *
+     * @var Response
+     */
+    protected $response;
+
+    /**
+     * Controller instance used in tests.
+     *
+     * @var BaseController
+     */
+    protected $controller;
+
+    /**
+     * Prepare tests.
+     */
+    protected function setUp()
+    {
+        parent::setUp();
+
+        $this->container = new Container();
+        $this->request = Request::createFromEnvironment(Environment::mock());
+        $this->response = new Response();
+        $this->container['view'] = ViewFactory::create($this->container, $this->request);
+        $this->container['locale'] = new LocaleManager();
+
+        $frontController = new FrontController($this->container);
+        $downloadController = new DownloadController($this->container);
+
+        $this->container['router']->map(['GET'], '/', [$frontController, 'index'])
+            ->setName('index');
+        $this->container['router']->map(['GET'], '/video', [$frontController, 'info'])
+            ->setName('info');
+        $this->container['router']->map(['GET'], '/extractors', [$frontController, 'extractors'])
+            ->setName('extractors');
+        $this->container['router']->map(['GET'], '/locale', [$frontController, 'locale'])
+            ->setName('locale');
+        $this->container['router']->map(['GET'], '/redirect', [$downloadController, 'download'])
+            ->setName('download');
+    }
+
+    /**
+     * Run controller function with custom query parameters and return the result.
+     *
+     * @param string $request Controller function to call
+     * @param array  $params  Query parameters
+     *
+     * @return Response HTTP response
+     */
+    protected function getRequestResult($request, array $params)
+    {
+        return $this->controller->$request(
+            $this->request->withQueryParams($params),
+            $this->response
+        );
+    }
+
+    /**
+     * Assert that calling controller function with these parameters returns a 200 HTTP response.
+     *
+     * @param string $request Controller function to call
+     * @param array  $params  Query parameters
+     *
+     * @return void
+     */
+    protected function assertRequestIsOk($request, array $params = [])
+    {
+        $this->assertTrue($this->getRequestResult($request, $params)->isOk());
+    }
+
+    /**
+     * Assert that calling controller function with these parameters returns an HTTP redirect.
+     *
+     * @param string $request Controller function to call
+     * @param array  $params  Query parameters
+     *
+     * @return void
+     */
+    protected function assertRequestIsRedirect($request, array $params = [])
+    {
+        $this->assertTrue($this->getRequestResult($request, $params)->isRedirect());
+    }
+
+    /**
+     * Assert that calling controller function with these parameters returns an HTTP 500 error.
+     *
+     * @param string $request Controller function to call
+     * @param array  $params  Query parameters
+     *
+     * @return void
+     */
+    protected function assertRequestIsServerError($request, array $params = [])
+    {
+        $this->assertTrue($this->getRequestResult($request, $params)->isServerError());
+    }
+
+    /**
+     * Assert that calling controller function with these parameters returns an HTTP 400 error.
+     *
+     * @param string $request Controller function to call
+     * @param array  $params  Query parameters
+     *
+     * @return void
+     */
+    protected function assertRequestIsClientError($request, array $params = [])
+    {
+        $this->assertTrue($this->getRequestResult($request, $params)->isClientError());
+    }
+}