Pest PHP Testing Basics

When to use

• The user wants to convert an existing PHPUnit test class into Pest's function-style syntax.
• The user wants to run the same Pest test across many cases using a dataset.
• The user wants to write a Pest test using test() or it() with the expect() API.

When NOT to use

• Do not use this skill when the project standard is plain PHPUnit TestCase classes and Pest is not installed.
• Do not target Pest 2/3 when the runtime is PHP 8.0 or earlier; stay on the last compatible Pest line or plain PHPUnit.

Core guidance