Comos\Qpm\Pid\ManagerTest::testStart_PidFileContainsIllegalString PHP Method

    public function testStart_PidFileContainsIllegalString()
    {
        file_put_contents($this->_pidFile, 'xxxx');
        $man = new Manager($this->_pidFile);
        $man->start();
        $r = file_get_contents($this->_pidFile);
        $ms = null;
        $info = json_decode($r);
        $this->assertTrue(is_numeric($info[0]));
        $this->assertTrue(is_string($info[1]));
    }