@Test
public void handleMessageShouldCallUpdateFirmware() throws OsgpException {

    // arrange
    final FirmwareFileDto firmwareFileDto = this.setupFirmwareFileDto();
    final ResponseMessage responseMessage = this.setupResponseMessage(firmwareFileDto);
    // act
    this.getFirmwareFileResponseMessageProcessor
            .handleMessage(this.dlmsConnectionManagerMock, this.dlmsDevice, responseMessage);
    // assert
    verify(this.firmwareService, times(1))
            .updateFirmware(this.dlmsConnectionManagerMock, this.dlmsDevice, firmwareFileDto);
}