Fix unittest

Author: reyoung

paddle/capi/tests/CMakeLists.txt

@@ -3,8 +3,12 @@ add_unittest(capi_test_mats test_Vector.cpp
 
 target_include_directories(capi_test_mats PUBLIC ${PADDLE_CAPI_INC_PATH})
 target_link_libraries(capi_test_mats paddle_capi)
-add_unittest(capi_test_gradientMachine test_GradientMachine.cpp)
 
+
+add_unittest_without_exec(capi_test_gradientMachine test_GradientMachine.cpp)
 target_include_directories(capi_test_gradientMachine PUBLIC
   ${PADDLE_CAPI_INC_PATH})
 target_link_libraries(capi_test_gradientMachine paddle_capi)
+add_test(NAME capi_test_gradientMachine
+  COMMAND ${PROJ_ROOT}/paddle/.set_python_path.sh -d ${PROJ_ROOT}/python ${CMAKE_CURRENT_BINARY_DIR}/capi_test_gradientMachine
+  WORKING_DIRECTORY ${PROJ_ROOT}/paddle/capi/tests)