Building RESTful Web Services with PHP 7

Writing test cases

Now, it's time to write test cases. The first thing is how we decide what we should test. Should we start testing every endpoint and then every class?

The first thing to understand is that we should only test the code that is written by us. By us, I mean someone from our team. We don't intend to test the code that is third-party, framework code, or a package. Also, we don't want to test each and every class and every method. In an ideal case, we can test each and every minor function's details but it has its drawbacks. First of all in the real world, we don't have time for that. We intend to test most parts but not all parts. Another reason is that all the tests that we are writing are a liability as well. We also need ...