google test 사용하기

google test

• google test
• C++ Test를 위해 google에서 만든 Framework

Install

• Ubuntu 20.04 LTS / Raspbian GNU/Linux 10 (buster)

• 기반 패키지

  • build tools : cmake, make
    • bazel build tool도 지원하지만 cmake만 사용할 예정
  • c++ compiler : gcc, g++

google test 설치

apt 설치

sudo apt-get install -y libgtest-dev
sudo apt-get install -y cmake
cd /usr/src/gtest
sudo mkdir build
cd build
sudo cmake ..
sudo make
sudo cp *.a /usr/lib

• library
  • /usr/lib/libgtest.a
  • /usr/lib/libgtest_main.a
• header
  • /usr/local/include/gtest

git clone 후 설치

git clone https://github.com/google/googletest
cd googletest/googletest
mkdir build
cd build
cmake ..
make

Usage

• 참고 : https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/

simple test code

#include <gtest/gtest.h>

// Demonstrate some basic assertions.
TEST(tc_name, t_name) {
//  Expect two strings not to be equal.
    EXPECT_STRNE("hello", "world");
//  Expect equality.
    EXPECT_EQ(7 * 6, 42);
}

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

CMakeLists.txt 생성

$ vi CMakeLists.txt

cmake_minimum_required(VERSION 2.6)

# Locate GTest
find_package(GTest REQUIRED)
include_directories(${GTEST_INCLUDE_DIRS})

# Link runTests with what we want to test and the GTest and pthread library
add_executable(runTests hello_gtest.cc)
target_link_libraries(runTests ${GTEST_LIBRARIES} pthread)

compile

cmake CMakeLists.txt
make
./runTests

결과

pi@pi:~/Workspace/test $ ./runTests
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from tc_name
[ RUN      ] tc_name.t_name
[       OK ] tc_name.t_name (0 ms)
[----------] 1 test from tc_name (0 ms total)

[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (1 ms total)
[  PASSED  ] 1 test.