ci-phpunit-test for CodeIgniter 3.0

My pleasure.

You don't have to test abstract classes. Test your concrete classes.
The behavior of an abstract class could test via testing a concrete class which inherits it.

If you really want to test abstract classes, you could use PHPUnit getMockForAbstractClass().
https://phpunit.readthedocs.io/en/8.5/te...ct-classes

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