Added project tests section to the CONTRIBUTING file

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Alejandro Celaya 2020-07-01 16:35:25 +02:00
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@ -35,6 +35,28 @@ Once you finish this, you will have the project exposed in ports `8000` through
> Note: The `indocker` shell script is a helper used to run commands inside the main docker container.
## Project tests
In order to ensure stability and no regressions are introduced while developing new features, this project has three types of tests.
* **Unit tests**: These are the simplest to run, and usually test individual pieces of code, replacing any external dependency by mocks.
The code coverage of unit tests is pretty high, and only entity repositories are excluded because of their nature.
* **Database tests**: These are integration tests that run against a real database, and only cover entity repositories.
Its purpose is to verify all the database queries behave as expected and return what's expected.
The project provides some tooling to run them against any of the supported database engines.
* **API tests**: These are E2E tests that spin up an instance of the app and test it from the outside, by interacting with the REST API.
These are the best tests to catch regressions, and to verify everything interacts as expected.
* **CLI tests**: *TBD. Once included, its purpose will be the same as API tests, but running through the command line*
Depending on the kind of contribution, maybe not all kinds of tests are needed, but the more you provide, the better.
## Running code checks
* Run `./indocker composer cs` to check coding styles are fulfilled.