How to use C++ function unit testing with continuous integration (CI)?

Answer: Using continuous integration (CI) combined with C function unit testing can automate code testing and ensure code quality and reliability. Install CMake and unit test framework: Google Test: sudo apt install libgtest-devCatch2: sudo apt install libcatch2-dev Write unit tests: Write code tests using a unit test framework such as Google Test Configure CMake: Add unit tests in CMakeLists.txt Running tests in CI: Configure a CI system (such as Jenkins) to run tests on every push

How to use C function unit testing with Continuous Integration (CI)

Introduction

Continuous integration (CI) is a DevOps practice that helps developers automatically build, test, and deploy their code. CI can be combined with functional unit testing to ensure code quality and reliability.

Install CMake and its unit testing framework

The first step is to install CMake and its unit testing framework, such as Google Test or Catch2. For Google Test:

sudo apt install libgtest-dev  # Debian/Ubuntu
sudo yum install -y google-test # CentOS/Red Hat

For Catch2:

sudo apt install libcatch2-dev  # Debian/Ubuntu
sudo yum install -y catch2-devel # CentOS/Red Hat

Writing Unit Tests

Next, write the appropriate unit test to test the C function. For example, here is a sample test using the Google Test framework:

#include <gtest/gtest.h>

TEST(ExampleTest, AddNumbers) {
  EXPECT_EQ(addNumbers(1, 2), 3);
  EXPECT_EQ(addNumbers(3, 4), 7);
}

Configuring CMake to include unit tests

Add unit tests to CMake so they are included in CI under construction. Here is an example configuration in CMakeLists.txt:

add_executable(example example.cpp)
target_link_libraries(example GTest::GTest GTest::Main)

Run the test in CI

Configure the CI system (such as Jenkins or Travis CI) to run the test on every push when running C unit tests. For example, in Jenkins, you can create a job configuration using the following shell script:

cmake -B build
cmake --build build
ctest -C build

practical case

In a C project, unit tests are used for testing A function that calculates date differences. The function initially had a bug that was automatically detected by the CI system every time the code was pushed. This helps to detect and fix bugs early before they make it into production.

Conclusion

By combining C function unit testing with CI, developers can automate code testing and ensure code quality. It helps teams quickly detect and fix errors, improving software reliability and stability.

The above is the detailed content of How to use C++ function unit testing with continuous integration (CI)?. For more information, please follow other related articles on the PHP Chinese website!