PHPUnit - 'No tests executed' when using configuration file

Question

The Problem

To improve my quality of code, I\'ve decided to try to learn how to test my code using Unit Testing instead of my mediocre-at-best testing solutions.

Answer 1

Check phpunit.xml file, look inside testsuites.

My version of phpunit (2019) is looking for files ending (suffix) *Test.php . So, make sure all the test files are named properly (ex.: BookTest.php is correct, BookTests.php is not, BookTestCase.php is not).