After writing quite some code in the last few videos, It's time to add some test cases! I'll set up PHPUnit, configure it to work in PHPStorm, and then configure a pipeline with GitHub actions to ensure that our test cases run on each push and pull requests.
00:00 Why testing?
00:20 Installing PHPUnit
00:40 Configuration
02:11 The test pyramid
03:23 Adding PSR-4 mappings for tests
03:50 Our first test
04:17 Configuring PHPStorm
05:20 Assertions
05:44 Coverage Annotation
06:40 assertSame vs assertEquals
07:03 GitHub actions workflow
09:04 Outro