CでgoogletestとCMakeを使ってみた
12650 ワード
C向けにgoogletestを使ってcmakeでビルドするサンプルです。
例は書籍 Test-Driven Development for Embedded C/テスト駆動開発による組み込みプログラミング のLED Driverのスケルトンとして使えます。
ディレクトリ構成
build/ ビルド用のディレクトリ
ext/
ext/googletest googletestのソースコード
inc/ ヘッダ
src/ ソース
test/ テスト
googletestの準備
gitの初期化とgoogletestの取得を行う。
% git init
% mkdir build ext inc src test
% cd ext
% git submodule add https://github.com/google/googletest.git
googletest用のcmakeファイルを作成する。
CMakeLists.txt
project("led driver")
cmake_minimum_required(VERSION 2.8)
add_subdirectory(ext)
ext/CMakeLists.txt
option(BUILD_GTEST "Builds the googletest subproject" ON)
option(BUILD_GMOCK "Builds the googlemock subproject" OFF)
add_subdirectory(googletest)
buildディレクトリでビルドする。
$ cd build
$ cmake ..
-- The C compiler identification is GNU 4.8.4
-- The CXX compiler identification is GNU 4.8.4
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Found PythonInterp: /usr/bin/python (found version "2.7.6")
-- Looking for include file pthread.h
-- Looking for include file pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Configuring done
-- Generating done
-- Build files have been written to: /home/sekine/github/leddriver2/build
$ make
Scanning dependencies of target gtest
[ 50%] Building CXX object ext/googletest/googletest/CMakeFiles/gtest.dir/src/gtest-all.cc.o
Linking CXX static library libgtest.a
[ 50%] Built target gtest
Scanning dependencies of target gtest_main
[100%] Building CXX object ext/googletest/googletest/CMakeFiles/gtest_main.dir/src/gtest_main.cc.o
Linking CXX static library libgtest_main.a
[100%] Built target gtest_main
ここまでの作業をgit commit しときます。
$ cd ..
$ git add CMakeLists.txt ext/CMakeLists.txt
$ git commit -m "setup googletest."
ソースコードの例
inc/LedDriver.h
#ifndef LEDDRIVER_H
#define LEDDRIVER_H
void LedDriver_Create(uint16_t *address);
void LedDriver_Destroy(void);
void LedDriver_TurnOn(int ledNumber);
void LedDriver_TurnOff(int ledNumber);
#endif
src/LedDriver.c
#include <stdint.h>
#include "LedDriver.h"
static uint16_t *ledsAddress;
void LedDriver_Create(uint16_t *address)
{
ledsAddress = address;
*ledsAddress = 0;
}
void LedDriver_Destroy(void)
{
}
void LedDriver_TurnOn(int ledNumber)
{
*ledsAddress = 1;
}
void LedDriver_TurnOff(int ledNumber)
{
*ledsAddress = 0;
}
test/LedDriverTest.cpp
#include <stdint.h>
#include "gtest/gtest.h"
extern "C"
{
#include "LedDriver.h"
}
uint16_t virtualleds;
class LedDriver : public ::testing::Test
{
protected:
virtual void SetUp()
{
LedDriver_Create(&virtualleds);
}
virtual void TearDown()
{
LedDriver_Destroy();
}
};
TEST_F(LedDriver, LedsOffAfterCreate)
{
uint16_t virtualleds1 = 0xffff;
LedDriver_Create(&virtualleds1);
ASSERT_EQ(0, virtualleds1);
}
TEST_F(LedDriver, TurnOnLedOne)
{
LedDriver_TurnOn(1);
ASSERT_EQ(1, virtualleds);
}
TEST_F(LedDriver, TurnOffLedOne)
{
LedDriver_TurnOn(1);
LedDriver_TurnOff(1);
ASSERT_EQ(0, virtualleds);
}
inc/LedDriver.h
#ifndef LEDDRIVER_H
#define LEDDRIVER_H
void LedDriver_Create(uint16_t *address);
void LedDriver_Destroy(void);
void LedDriver_TurnOn(int ledNumber);
void LedDriver_TurnOff(int ledNumber);
#endif
src/LedDriver.c
#include <stdint.h>
#include "LedDriver.h"
static uint16_t *ledsAddress;
void LedDriver_Create(uint16_t *address)
{
ledsAddress = address;
*ledsAddress = 0;
}
void LedDriver_Destroy(void)
{
}
void LedDriver_TurnOn(int ledNumber)
{
*ledsAddress = 1;
}
void LedDriver_TurnOff(int ledNumber)
{
*ledsAddress = 0;
}
test/LedDriverTest.cpp
#include <stdint.h>
#include "gtest/gtest.h"
extern "C"
{
#include "LedDriver.h"
}
uint16_t virtualleds;
class LedDriver : public ::testing::Test
{
protected:
virtual void SetUp()
{
LedDriver_Create(&virtualleds);
}
virtual void TearDown()
{
LedDriver_Destroy();
}
};
TEST_F(LedDriver, LedsOffAfterCreate)
{
uint16_t virtualleds1 = 0xffff;
LedDriver_Create(&virtualleds1);
ASSERT_EQ(0, virtualleds1);
}
TEST_F(LedDriver, TurnOnLedOne)
{
LedDriver_TurnOn(1);
ASSERT_EQ(1, virtualleds);
}
TEST_F(LedDriver, TurnOffLedOne)
{
LedDriver_TurnOn(1);
LedDriver_TurnOff(1);
ASSERT_EQ(0, virtualleds);
}
CMakeの設定です。
CMakeLists.txt
project("led driver")
cmake_minimum_required(VERSION 2.8)
add_subdirectory(ext)
add_subdirectory(src)
add_subdirectory(test)
ADD_CUSTOM_TARGET(check test/led_driver_test_app)
src/CMakeLists.txt
add_library(LedDriver LedDriver.c)
target_include_directories(LedDriver PUBLIC ../inc)
test/CMakeLists.txt
add_executable(led_driver_test_app
LedDriverTest.cpp)
target_link_libraries(led_driver_test_app
gtest
gtest_main
LedDriver)
実行例です。
$ cd build
$ cmake ..
-- Configuring done
-- Generating done
-- Build files have been written to: /home/sekine/github/leddriver2/build
$ make
[ 25%] Built target gtest
[ 50%] Built target gtest_main
[ 75%] Built target LedDriver
[100%] Built target led_driver_test_app
$ make check
Running main() from gtest_main.cc
[==========] Running 3 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 3 tests from LedDriver
[ RUN ] LedDriver.LedsOffAfterCreate
[ OK ] LedDriver.LedsOffAfterCreate (0 ms)
[ RUN ] LedDriver.TurnOnLedOne
[ OK ] LedDriver.TurnOnLedOne (0 ms)
[ RUN ] LedDriver.TurnOffLedOne
[ OK ] LedDriver.TurnOffLedOne (0 ms)
[----------] 3 tests from LedDriver (0 ms total)
[----------] Global test environment tear-down
[==========] 3 tests from 1 test case ran. (1 ms total)
[ PASSED ] 3 tests.
Built target check
$
Author And Source
この問題について(CでgoogletestとCMakeを使ってみた), 我々は、より多くの情報をここで見つけました https://qiita.com/eggman/items/2adea51317100794a8bc著者帰属:元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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