2_TestingSubchapter.md

Testing

1. Always write tests for your application.
2. When project starts, please choose a testing toolset and continue using it during project for the consistency.
3. Before starting implementing new functional code, make sure all your core logic is covered with unit tests (PHPUnit / PHPSpec).
4. We use unit tests only for code related to bussiness logic, so please do not write them for controllers, repositories, fixture generators, getters, setters etc.
5. For integration tests we use PHPUnit with lchrusciel/api-test-case library. The integration tests means testing code with integration to external services, like database, redis, file system. So please write them for repositories, cache drivers, file uploaders etc.
6. For functional API tests we use PHPUnit with lchrusciel/api-test-case library. The functional API tests means running application API endpoints, comparing their responses with additional database checks if needed.
7. Please write your fixtures using Nelmio Alice package, which is included in lchrusciel/api-test-case library.
8. For functional and end to end GUI tests please use Behat.
9. After you implement any new functional feature, write Behat scenario (Gherkin, *.feature file).
10. When you're fixing a bug, it's recommended to write behat scenario first (TDD) to prove the fix works correctly.

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