diff --git a/core/tests/Drupal/Tests/Core/Routing/AcceptHeaderMatcherTest.php b/core/tests/Drupal/Tests/Core/Routing/AcceptHeaderMatcherTest.php
index 9b2e277..6eacd0e 100644
--- a/core/tests/Drupal/Tests/Core/Routing/AcceptHeaderMatcherTest.php
+++ b/core/tests/Drupal/Tests/Core/Routing/AcceptHeaderMatcherTest.php
@@ -85,9 +85,6 @@ public function testAcceptFiltering($accept_header, $format, $included_route, $e
 
   /**
    * Confirms that the AcceptHeaderMatcher throws an exception for no-route.
-   *
-   * @expectedException \Symfony\Component\HttpKernel\Exception\NotAcceptableHttpException
-   * @expectedExceptionMessage No route found for the specified formats application/json text/xml
    */
   public function testNoRouteFound() {
     // Remove the sample routes that would match any method.
@@ -100,9 +97,8 @@ public function testNoRouteFound() {
     $request = Request::create('path/two', 'GET');
     $request->headers->set('Accept', 'application/json, text/xml;q=0.9');
     $request->setRequestFormat('json');
+    $this->setExpectedException(NotAcceptableHttpException::class, 'No route found for the specified formats application/json text/xml');
     $this->matcher->filter($routes, $request);
-    $this->matcher->filter($routes, $request);
-    $this->fail('No exception was thrown.');
   }
 
 }