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== Continuous Integration with ExUnit == Continuous Integration (CI) is a software development practice that involves the automatic building, testing, and deployment of code changes. ExUnit, the unit testing framework for the Elixir programming language, provides excellent support for integrating unit tests into a CI pipeline. === Setting up CI for Elixir projects === To set up CI for Elixir projects using ExUnit, you can follow these general steps: 1. Choose a CI service: Decide on a CI service that best suits your needs, such as Travis CI, CircleCI, or GitLab CI/CD. 2. Configure the CI environment: Set up your CI environment by specifying the required dependencies, including the Elixir version and any additional packages needed by your project. 3. Define the build script: Create a build script that performs the necessary steps to build and test your Elixir project. This usually involves installing dependencies with mix, compiling the code, and running the ExUnit tests. 4. Configure notifications and artifacts: Optionally, configure notifications to receive build status updates. You may also configure the CI service to store artifacts, such as test coverage reports or build logs. 5. Commit and push your code: Make sure your Elixir codebase is committed and pushed to your version control system, triggering the CI pipeline. 6. Monitor the CI pipeline: Monitor the CI pipeline to ensure that the build and test stages complete successfully. If any failures occur, investigate and fix the issues promptly. === Benefits of CI with ExUnit === Integrating ExUnit tests into your CI pipeline offers several benefits: 1. Early detection of issues: CI enables you to identify and fix problems early in the development process, as issues are caught immediately after committing the code changes. 2. Test automation: CI automates the execution of your ExUnit tests, saving you time and effort compared to manually running the tests. 3. Consistent test environment: CI ensures that your tests run in a consistent environment, minimizing variations between developers' machines and reducing the risk of test failures due to environment-related issues. 4. Faster feedback loop: With CI, you receive prompt feedback on the stability and quality of your codebase, allowing you to iterate and improve the software more efficiently. 5. Code coverage tracking: CI services often provide code coverage reports, allowing you to monitor the test coverage of your Elixir project and identify areas that require additional tests. 6. Integration with other development tools: CI services can integrate with various development tools, such as code review systems, issue trackers, and deployment pipelines, enhancing your overall development workflow. === Conclusion === Continuous Integration with ExUnit brings numerous advantages to the development of Elixir projects. Setting up a CI pipeline and incorporating ExUnit tests ensures early issue detection, test automation, a consistent test environment, faster feedback, code coverage tracking, and integration with other development tools. By following the steps outlined above, you can integrate CI into your Elixir projects with ease, improving the overall quality and reliability of your codebase. [[Category:Elixir (programming language)]] [[Category:Continuous Integration]] [[Category:Testing]]
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