Add tests.

spec/drupol/CasBundle/Controller/LogoutSpec.php

@@ -5,10 +5,51 @@
 namespace spec\drupol\CasBundle\Controller;
 
 use drupol\CasBundle\Controller\Logout;
+use drupol\psrcas\Cas;
+use Nyholm\Psr7\Factory\Psr17Factory;
+use Nyholm\Psr7\ServerRequest;
 use PhpSpec\ObjectBehavior;
+use Psr\Log\NullLogger;
+use Symfony\Component\Cache\Adapter\ArrayAdapter;
+use Symfony\Component\HttpClient\Psr18Client;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 
 class LogoutSpec extends ObjectBehavior
 {
+    public function it_can_be_invoked(TokenStorageInterface $tokenStorage)
+    {
+        $serverRequest = new ServerRequest('GET', 'http://app');
+        $properties = \spec\drupol\CasBundle\Cas::getTestProperties();
+        $client = new Psr18Client(\spec\drupol\CasBundle\Cas::getHttpClientMock());
+        $cache = new ArrayAdapter();
+        $logger = new NullLogger();
+
+        $psr17Factory = new Psr17Factory();
+
+        $cas = new Cas(
+            $serverRequest,
+            $properties,
+            $client,
+            $psr17Factory,
+            $psr17Factory,
+            $psr17Factory,
+            $psr17Factory,
+            $cache,
+            $logger
+        );
+
+        $this
+            ->__invoke($cas, $tokenStorage)
+            ->shouldBeAnInstanceOf(RedirectResponse::class);
+
+        $this
+            ->__invoke($cas, $tokenStorage)
+            ->headers
+            ->get('location')
+            ->shouldReturn('http://local/cas/logout');
+    }
+
     public function it_is_initializable()
     {
         $this->shouldHaveType(Logout::class);