How to write a custom `.assertFoo()` method in Python?

Question

I\'m writing some test cases for my application using Python\'s unittest. Now I need to compare a list of objects with a list of another objects to check if the objects from

Answer 1

You should create your own TestCase class, derived from unittest.TestCase. Then put your custom assert method into that test case class. If your test fails, raise an AssertionError. Your message should be a string. If you want to test all objects in the list rather than stop on a failure, then collect a list of failing indexes, and after the loop over all the objects, build an assert message that summarizes your findings.