added failure tests

Author: kbond

tests/ZendDiagnosticsTest/ChecksTest.php

@@ -50,13 +50,21 @@ public function testRabbitMQ()
         $check = new RabbitMQ();
         $result = $check->check();
         $this->assertInstanceOf('ZendDiagnostics\Result\Success', $result);
+
+        $check = new RabbitMQ('127.0.0.250', 9999);
+        $this->setExpectedException('PhpAmqpLib\Exception\AMQPRuntimeException');
+        $check->check();
     }
 
     public function testRedis()
     {
         $check = new Redis();
         $result = $check->check();
         $this->assertInstanceOf('ZendDiagnostics\Result\Success', $result);
+
+        $check = new Redis('127.0.0.250', 9999);
+        $this->setExpectedException('Predis\Connection\ConnectionException');
+        $check->check();
     }
 
     public function testClassExists()