Simplify unit test by using a real request object

tests/src/Unit/RedirectRequestSubscriberTest.php

@@ -11,12 +11,9 @@
 use Drupal\redirect\EventSubscriber\RedirectRequestSubscriber;
 use Drupal\Tests\UnitTestCase;
 use PHPUnit_Framework_MockObject_MockObject;
-use Symfony\Component\HttpFoundation\FileBag;
-use Symfony\Component\HttpFoundation\HeaderBag;
-use Symfony\Component\HttpFoundation\ParameterBag;
 use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
-use Symfony\Component\HttpFoundation\ServerBag;
 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
 use Symfony\Component\HttpKernel\Event\PostResponseEvent;
 
@@ -258,30 +255,7 @@ protected function getPostResponseEvent($headers = array()) {
    * @return GetResponseEvent
    */
   protected function getGetResponseEventStub($path_info, $query_string) {
-
-    $request = $this->getMockBuilder('Symfony\Component\HttpFoundation\Request')
-      ->disableOriginalConstructor()
-      ->getMock();
-    $request->expects($this->any())
-      ->method('getQueryString')
-      ->will($this->returnValue($query_string));
-    $request->expects($this->any())
-      ->method('getPathInfo')
-      ->will($this->returnValue($path_info));
-    $request->expects($this->any())
-      ->method('getScriptName')
-      ->will($this->returnValue('index.php'));
-    $request->expects($this->any())
-      ->method('isMethod')
-      ->with('GET')
-      ->will($this->returnValue(TRUE));
-
-    $request->query = new ParameterBag();
-    $request->attributes = new ParameterBag();
-    $request->cookies = new ParameterBag();
-    $request->files = new FileBag();
-    $request->server = new ServerBag();
-    $request->headers = new HeaderBag();
+    $request = Request::create($path_info . '?' . $query_string, 'GET', [], [], [], ['SCRIPT_NAME' => 'index.php']);
 
     $http_kernel = $this->getMockBuilder('\Symfony\Component\HttpKernel\HttpKernelInterface')
       ->getMock();