public function testGetDeviceFalse()
 {
     $deviceOneMock = m::mock(SHCdevEnvSensor::class);
     $deviceOneMock->shouldReceive('setDeviceFactory');
     $factory = new DeviceFactory();
     $factory->addDevice($deviceOneMock, 'SHCdevEnvSensor');
     $instance = $factory->getDevice('NonExistingDevice');
     $this->assertFalse($instance);
 }