fix tests

receiver/src/request.cpp

receiver/src/request.h

receiver/src/request_factory.cpp

receiver/src/request_factory.h

receiver/src/request_handler_receive_data.cpp

receiver/src/request_handler_receive_data.h

receiver/unittests/test_request.cpp

receiver/unittests/test_request_factory.cpp

receiver/unittests/test_request_handler_receive_data.cpp