use cmake to manage unittests

CMakeLists.txt

+#   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+cmake_minimum_required(VERSION 3.8)
+
+enable_testing()
+
+option(WITH_TESTING "Include unit testing" ON)
+option(FLUID_PATH "Path to PaddlePaddle Fluid" "")
+
+function(py_test TARGET_NAME)
+  if(WITH_TESTING)
+    set(options "")
+    set(oneValueArgs "")
+    set(multiValueArgs SRCS DEPS ARGS ENVS)
+    cmake_parse_arguments(py_test "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+    add_test(NAME ${TARGET_NAME}
+             COMMAND env PYTHONPATH=.:${py_test_ENVS}
+             python -u ${py_test_SRCS} ${py_test_ARGS}
+             WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+  endif()
+endfunction()
+
+file(GLOB_RECURSE TEST_OPS RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "test_*.py")
+string(REPLACE ".py" "" TEST_OPS "${TEST_OPS}")
+
+foreach(src ${TEST_OPS})
+    py_test(${src} SRCS ${src}.py ENVS ${FLUID_PATH})
+endforeach()

parl/layers/tests/test_param_name.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 import unittest
-import pprl.layers as layers
+import parl.layers as layers
 
 
 class TestParamName(unittest.TestCase):

parl/layers/tests/test_param_sharing.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 import unittest
-import pprl.layers as layers
+import parl.layers as layers
 import paddle.fluid as fluid
 import numpy as np