I want to share with you the approach you can use working with Unit Testing which I personally find very convenient and robust.
How can you manage the Unit Testing of your ZPM module?
This is pretty handy with ZPM. It has a special command "test" which runs all the tests you mentioned in the module. You can execute it as shown below:
And this command runs all the tests you mentioned in module.xml.
Let's see how it works.