Show exceptions that occurs occuring tests.

tests/ApplicationAvailabilityFunctionalTest.php

@@ -61,10 +61,12 @@ class ApplicationAvailabilityFunctionalTest extends WebTestCase
         $url = '/en'.$url;
 
         //Try to access pages with admin, because he should be able to view every page!
+        static::ensureKernelShutdown();
         $client = static::createClient([], [
             'PHP_AUTH_USER' => 'admin',
             'PHP_AUTH_PW' => 'test',
         ]);
+        $client->catchExceptions(false);
 
         $client->request('GET', $url);