Google Test
链接
摘要
Google Test , C++ test framework -- 断言
内容
C++ Test Framework
what is Google Test ?
C++ test with google test framework
- link ： test
how to use it ?
-
1、从 google 网站 download gtest 源码
git clone https://github.com/google/googletest.git
-
2、使用 VS 打开 googletest\googletest\msvc 下的工程
-
3、设置 build 的属性，编译出 gtest.lib(release) 或者 gtestd.lib(debug)
-
4、新建一个要测试的程序(win32 console )
-
5、将 googletest\googletest\include 添加到 IncludeDir
-
6、将 编译的 gtest.lib 或者 gtestd.lib 添加到 LibiraryDir
-
7、编写测试程序（例子在最后）
what is the rule ?
ASSERT_* and EXPECT_*
- ASSERT 退出测试
- EXPECT 继续执行
| rule | assert | expect | meaning |
|---|---|---|---|
| bool | ASSERT_TRUE(xxxx) | EXPECT_TRUE(xxxx) | xxxx == TRUE |
| ASSERT_FALSE(xxxx) | EXPECT_FALSE(xxxx) | xxxx == FALSE | |
| isll | ASSERT_EQ(expect,actual) | EXPECT_EQ(expect,actual) | expect == actual |
| ASSERT_NE(expect,actual) | EXPECT_NE(expect,actual) | expect != actual | |
| ASSERT_LT(expect,actual) | EXPECT_LT(expect,actual) | expect < actual | |
| ASSERT_LE(expect,actual) | EXPECT_LE(expect,actual) | expect <= actual | |
| ASSERT_GT(expect,actual) | EXPECT_GT(expect,actual) | expect > actual | |
| ASSERT_GE(expect,actual) | EXPECT_GE(expect,actual) | expect >= actual | |
| string | ASSERT_STREQ(expect,actual) | EXPECT_STREQ(expect,actual) | expect.equals(actual) |
| ASSERT_STRNE(expect,actual) | EXPECT_STRNE(expect,actual) | expect != actual | |
| ASSERT_STRCASEEQ(expect,actual) | EXPECT_STRCASEEQ(expect,actual) | expect == actual in ignoring case | |
| ASSERT_STRCASENE(expect,actual) | EXPECT_STRCASENE(expect,actual) | expect != actual in ignoring case | |
| float | ASSERT_FLOAT_EQ(expect, actual) | EXPECT_FLOAT_EQ(expect, actual) | expect == actual |
| double | ASSERT_DOUBLE_EQ(expecte,actual) | EXPECT_DOUBLE_EQ(expect, actual) | expect == actual |
| near | ASSERT_NEAR(val1, val2, abs_error) | EXPECT_NEAR(val1, val2, abs_error) | val1 near v2 |
成功或失败
- SUCCEED() 返回成功
- FAIL() 失败返回
- ADD_FAILURE() 失败继续往下执行
异常检查
| rule | assert | expect | meaning |
|---|---|---|---|
| check | ASSERT_THROW(statement,exception_type) | EXPECT_THROW(statement,exception_type) | same type |
| ASSERT_ANY_THROW(statement) | EXPECT_ANT_THROW(statement) | any type | |
| ASSERT_NO_THROW(statement) | EXPECT_NO_THROW(statement) | no type |
输出
- ASSERT_PRED1(pred1, val1)
- EXPECT_PRED1(pred1, val1)
- ASSERT_PRED_FORMAT1(pred_format1, val1)
- EXPECT_PRED_FORMAT1(pred_format1, val1)
test.demo
// gtest_2.cpp : Defines the entry point for the console application.
//
// demo.cpp : 定义控制台应用程序的入口点。
//
#include "stdafx.h"
#include <gtest\gtest.h>
int Foo(int a, int b)
{
if (a == 0 || b == 0)
{
throw "don't do that";
}
int c = a * b;
if (c == 40)
return b;
return Foo(b, c);
}
TEST(FooTest, HandleNoneZeroInput)
{
ASSERT_EQ(10, Foo(4, 10));
//EXPECT_EQ(8, Foo(5 , 8));
}
int _tmain(int argc, _TCHAR* argv[])
{
testing::InitGoogleTest(&argc, argv);
RUN_ALL_TESTS();
}
LINK