Depends. If your wanting to take a TDD approach, then phpspec is a good option

roelof1967 said:

I think the last one is only for acceptence test.

Codeception can be used for acceptance, functional and API testing, and also unit testing as it uses PHPUnit as a dependency, meaning you should also get everything PHPUnit has to offer (like integration testing).

I'm by no means an expert when it comes to testing, but this tool does give you an "all in one" solution. It's easy to setup and modify with different modules, create new test suites...

Both thanks,

With codeception I have to learn how to make a unit test.

Roelof