add gtest demo

test/src/gtest_demo/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.19)
+project(gtest_demo)
+
+message("cmake module " $ENV{CMAKE_MODULE_PATH})
+message("project dir "  ${PROJECT_SOURCE_DIR})
+
+set(CMAKE_BUILD_TYPE DEBUG)
+
+set(CMAKE_CXX_FLAGS "/OPT:NOREF /MTd /std:c++14 /EHsc  /MTd")
+set(CMAKE_CXX_FLAGS_RELEASE "")
+
+
+include_directories(E:\\conan_data\\gtest\\1.0\\_\\_\\package\\5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9\\include)
+link_directories(E:\\conan_data\\gtest\\1.0\\_\\_\\package\\5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9\\lib)
+
+link_libraries(gtestd.lib gtest_maind.lib gmockd.lib gmock_maind.lib)
+add_executable(gtest_demo gtest_demo.cpp)
+
+set_property(TARGET gtest_demo PROPERTY
+  MSVC_RUNTIME_LIBRARY MultiThreadedDebug)
+
+  target_include_directories(gtest_demo SYSTEM  PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/../../../obj/inc/third/include)

test/src/gtest_demo/gtest_demo.cpp

@@ -0,0 +1,13 @@
+#include<gtest/gtest.h>
+
+
+int add(int a,int b){
+    return a+b;
+}
+TEST(testCase,test0){
+    EXPECT_EQ(add(2,3),5);
+}
+int main(int argc,char **argv){
+  testing::InitGoogleTest(&argc,argv);
+  return RUN_ALL_TESTS();
+}