Disable some unit tests when PYTHON or SWIG_PY are not enabled.

* When SWIG_PY is not enabled, paddle.v2 package cannot be used.
* When PYTHON is not enabled, PyDataProvider cannot be used.

Fix issue #1920

paddle/trainer/tests/CMakeLists.txt

@@ -17,14 +17,17 @@ add_test(NAME test_Trainer
     WORKING_DIRECTORY ${PROJ_ROOT}/paddle/)
 
 ############### test_TrainerOnePass ##########################
-add_unittest_without_exec(test_TrainerOnePass
-    test_TrainerOnePass.cpp)
-add_test(NAME test_TrainerOnePass
-  COMMAND  ${PROJ_ROOT}/paddle/.set_python_path.sh -d
-        ${PROJ_ROOT}/python/:${PROJ_ROOT}/paddle/trainer/tests
-        ${PROJ_ROOT}/paddle/.set_port.sh -p port ${CMAKE_CURRENT_BINARY_DIR}/test_TrainerOnePass
-    WORKING_DIRECTORY ${PROJ_ROOT}/paddle/)
-
+if(WITH_PYTHON)
+  # only run test_TrainerOnePass when PYTHON is enabled, because train one pass
+  # is using PyDataProvider2.
+  add_unittest_without_exec(test_TrainerOnePass
+      test_TrainerOnePass.cpp)
+  add_test(NAME test_TrainerOnePass
+    COMMAND  ${PROJ_ROOT}/paddle/.set_python_path.sh -d
+          ${PROJ_ROOT}/python/:${PROJ_ROOT}/paddle/trainer/tests
+          ${PROJ_ROOT}/paddle/.set_port.sh -p port ${CMAKE_CURRENT_BINARY_DIR}/test_TrainerOnePass
+      WORKING_DIRECTORY ${PROJ_ROOT}/paddle/)
+endif()
 ################ test_CompareTwoNets ######################
 add_unittest_without_exec(test_CompareTwoNets
     test_CompareTwoNets.cpp)

python/CMakeLists.txt

@@ -24,9 +24,12 @@ add_custom_target(paddle_python ALL DEPENDS
     ${OUTPUT_DIR}/.timestamp)
 
 add_subdirectory(paddle/trainer_config_helpers/tests)
-add_subdirectory(paddle/v2/tests)
-add_subdirectory(paddle/v2/reader/tests)
-add_subdirectory(paddle/v2/plot/tests)
+if (WITH_SWIG_PY)
+  # enable v2 API unittest only when paddle swig api is compiled
+  add_subdirectory(paddle/v2/tests)
+  add_subdirectory(paddle/v2/reader/tests)
+  add_subdirectory(paddle/v2/plot/tests)
+endif()
 
 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/dist/
     DESTINATION opt/paddle/share/wheels