下载，安装，省略，直接上demo源码
　　===========linux运行gtest=================
----------------code.cpp-------------------
#include "code.h"
int f( int a ){    return a+1;}
int b( int b ){    return b+2;}
----------------code_test.cpp-------------------
#include "code.h"
#include <gtest/gtest.h>
TEST( TEST_A，NAME ){//TEST_A 是测试用例名称， NAME 是测试名称
EXPECT_EQ( 2，f( 1 ) );//这个测试执行函数f，参数为1，查看返回值是不是2
EXPECT_EQ( 3，f( 2 ) );
}
TEST( TEST_B，NAME ){
EXPECT_EQ( 4，b( 2 ) );
}
----------------main_test.cpp-------------------
#include <gtest/gtest.h
#include <iostream>
int main(int argc， char **argv) {
testing::InitGoogleTest(&argc， argv);
return RUN_ALL_TESTS();
}
----------------运行--------------------------
gcc $(gtest-config --ldflags --libs) -o main_test code.cpp code_test.cpp main_test.cpp -I /home/sosotest/include -lgtest -L /home/sosotest/lib
----------------运行--------------------------
./main_test
[==========] Running 4 tests from 4 test cases.
[----------] Global test environment set-up.
[----------] 1 test from TEST_A
[ RUN      ] TEST_A.NAME
[       OK ] TEST_A.NAME (0 ms)
[----------] 1 test from TEST_A (0 ms total)
[----------] 1 test from TEST_B
[ RUN      ] TEST_B.NAME
[       OK ] TEST_B.NAME (0 ms)
[----------] 1 test from TEST_B (0 ms total)
[----------] Global test environment tear-down
[==========] 2 tests from 2 test cases ran. (0 ms total)
[  PASSED  ] 2 tests.