YeeKal
linux

goosle test 使用

YeeKal • •
"#linux"

intro

source code: https://github.com/google/googletest

下载下来编译安装：

mkdir build
cd build
cmake ..
make

usage

#include<gtest/gtest.h>
int add(int a,int b){
    return a+b;
}

TEST(testCase,test0){
    EXPECT_EQ(add(2,3),5);
}

TEST(testCase,test1){
    EXPECT_TRUE(add(2, 3) == 5);
}

int main(int argc,char **argv){
  testing::InitGoogleTest(&argc,argv);
  return RUN_ALL_TESTS();
}


/* 直接编译 */
//  g++ gtest_demo.cpp -o gtest_demo -lgtest -lpthread

/* use camke */

/**
find_package(GTest REQUIRED)

add_executable(gtest_demo gtest_demo.cpp)
target_include_directories(gtest_demo PUBLIC ${GTEST_INCLUDE_DIRS})
target_link_libraries(gtest_demo ${GTEST_BOTH_LIBRARIES}  pthread)
*/

common grammar

  • fatal failure: 断言失败则程序崩溃
  • non-fatal failure: 断言失败程序继续运行

基础断言

Fatal assertion Nonfatal assertion Verifies
ASSERT_TRUE(condition); EXPECT_TRUE(condition); condition is true
ASSERT_FALSE(condition); EXPECT_FALSE(condition); condition is false

二值比较

Fatal assertion Nonfatal assertion Verifies
ASSERT_EQ(val1,val2); EXPECT_EQ(val1,val2); val1 == val2
ASSERT_NE(val1,val2); EXPECT_NE(val1,val2); val1 != val2
ASSERT_LT(val1,val2); EXPECT_LT(val1,val2); val1 < val2
ASSERT_LE(val1,val2); EXPECT_LE(val1,val2); val1 <= val2
ASSERT_GT(val1,val2); EXPECT_GT(val1,val2); val1 > val2
ASSERT_GE(val1,val2); EXPECT_GE(val1,val2); val1 >= val2

字符串比较

Fatal assertion Nonfatal assertion Verifies
ASSERT_STREQ(str1,str2); EXPECT_STREQ(str1,str2); the two C strings have the same content
ASSERT_STRNE(str1,str2); EXPECT_STRNE(str1,str2); the two C strings have different content
ASSERT_STRCASEEQ(str1,str2); EXPECT_STRCASEEQ(str1,str2); the two C strings have the same content, ignoring case
ASSERT_STRCASENE(str1,str2); EXPECT_STRCASENE(str1,str2); the two C strings have different content, ignoring case

代码共用 Test Fixture

class FooTest : public ::testing::Test {
public:
    // 全局设置， 静态变量
    static void SetUpTestCase() {

    }

    static void TearDownTestCase() {

    }

    // 局部设置， 每个test有独立的上下文数据
    virtual void SetUp(){

    }

    virtual void TearDown(){

    }
}

静态成员需要预先初始化

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