Merge pull request zendframework/zendframework#836 from Maks3w/hotfix…

…/ZF2-176

[ZF2-176] Replace all assertType assertions.

test/PubSubHubbub/PubSubHubbubTest.php

@@ -44,7 +44,7 @@ public function teardown()
     public function testCanSetCustomHttpClient()
     {
         PubSubHubbub\PubSubHubbub::setHttpClient(new Pubsub());
-        $this->assertType('ZendTest\Feed\PubSubHubbub\Pubsub', PubSubHubbub\PubSubHubbub::getHttpClient());
+        $this->assertInstanceOf('ZendTest\Feed\PubSubHubbub\Pubsub', PubSubHubbub\PubSubHubbub::getHttpClient());
     }
 
     public function testCanDetectHubs()