You wanna be a good Symfony developer, so give the time to master the following three testing in Symfony application.
| Type | TestCase (common used) | description |
|---|---|---|
| Unit | TestCase | It ensures that individual units of source code (e.g. a single class or some specific method in some class) meet their design and behave as intended |
| Functional | WebTestCase | It checks the integration of the different layers of an application (from the routing to the views). |
| Integration | KernelTestCase | It tests a larger part of source code as integrated components. It uses generally the Symfony Kernel to fetch a service from the dependency injection container. |
The simplest way to start any type of tests, is to use maker bundle:
# install the maker bundle ❯ symfony composer req --dev orm maker # install the test bundle ❯ symfony composer req --dev symfony/test-pack ❯ symfony console make:test # Which test type would you like?: # [TestCase ] basic PHPUnit tests # [KernelTestCase ] basic tests that have access to Symfony services # [WebTestCase ] to run browser-like scenarios, but that don't execute JavaScript code # > 
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