public function testGenerateMd5() { $message = new Message(); $message->generateMd5(); $this->assertEquals('d41d8cd98f00b204e9800998ecf8427e', $message->getMd5()); $message->setFlow('test flow'); $message->setFlowMessage('test flow message'); $message->setFlowName('test flow name'); $this->assertEquals('d41d8cd98f00b204e9800998ecf8427e', $message->getMd5()); $message->setFlow('another flow'); $this->assertEquals('d41d8cd98f00b204e9800998ecf8427e', $message->getMd5()); }