3 years ago

Countless are the times I've had to test for validation errors, and countless are the times I've repeated the same code for this purpose. Duplicating testing code is not always a bad thing though, but for validation errors, I don't know, it doesn't feel right. If it is acceptable to test one FormRequest with duplicated code, it's a sin to do that for a whole project.

Essentially, a data provider is a method that returns data that other tests depend on.

Form validation testing is not the only use-case for data providers though.