68 lines
2.5 KiB
Markdown
68 lines
2.5 KiB
Markdown
# Testing standards and style guidelines
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This document describes various guidelines and best practices for automated
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testing of the GitLab project.
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It is meant to be an _extension_ of the [thoughtbot testing
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styleguide](https://github.com/thoughtbot/guides/tree/master/style/testing). If
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this guide defines a rule that contradicts the thoughtbot guide, this guide
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takes precedence. Some guidelines may be repeated verbatim to stress their
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importance.
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## Overview
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GitLab is built on top of [Ruby on Rails](https://rubyonrails.org/), and we're using [RSpec] for all
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the backend tests, with [Capybara] for end-to-end integration testing.
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On the frontend side, we're using [Jest](https://jestjs.io/) and [Karma](http://karma-runner.github.io/)/[Jasmine](https://jasmine.github.io/) for JavaScript unit and
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integration testing.
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Following are two great articles that everyone should read to understand what
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automated testing means, and what are its principles:
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- [Five Factor Testing](https://www.devmynd.com/blog/five-factor-testing): Why do we need tests?
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- [Principles of Automated Testing](http://www.lihaoyi.com/post/PrinciplesofAutomatedTesting.html): Levels of testing. Prioritize tests. Cost of tests.
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## [Testing levels](testing_levels.md)
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Learn about the different testing levels, and how to decide at what level your
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changes should be tested.
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## [Testing best practices](best_practices.md)
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Everything you should know about how to write good tests: Test Design, RSpec, FactoryBot,
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system tests, parameterized tests etc.
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## [Frontend testing standards and style guidelines](frontend_testing.md)
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Everything you should know about how to write good Frontend tests: Karma,
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testing promises, stubbing etc.
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## [Flaky tests](flaky_tests.md)
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What are flaky tests, the different kind of flaky tests we encountered, and what
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we do about them.
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## [GitLab tests in the Continuous Integration (CI) context](ci.md)
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How GitLab test suite is run in the CI context: setup, caches, artifacts,
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parallelization, monitoring.
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## [Review apps](review_apps.md)
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How review apps are set up for GitLab CE/EE and how to use them.
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## [Testing Rake tasks](testing_rake_tasks.md)
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Everything you should know about how to test Rake tasks.
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## [End-to-end tests](end_to_end/index.md)
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Everything you should know about how to run end-to-end tests using
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[GitLab QA][gitlab-qa] testing framework.
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[Return to Development documentation](../README.md)
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[RSpec]: https://github.com/rspec/rspec-rails#feature-specs
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[Capybara]: https://github.com/teamcapybara/capybara
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[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
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