UserAgentParser\Model\UserAgent::setDevice PHP Method

    public function setDevice(Device $device)
    {
        $this->device = $device;
    }

 public function testDevice()
 {
     $ua = new UserAgent();
     $this->assertInstanceOf('UserAgentParser\\Model\\Device', $ua->getDevice());
     $mock = self::createMock('UserAgentParser\\Model\\Device');
     $ua->setDevice($mock);
     $this->assertSame($mock, $ua->getDevice());
 }