pytest Quick Start Guide

Powerful asserts

As you've probably already noticed, pytest makes use of the built-in assert statement to check assumptions during testing. Contrary to other frameworks, you don't need to remember various self.assert* or self.expect* functions. While this may not seem like a big deal at first, after spending some time using plain asserts, you will realize how much that makes writing tests more enjoyable and natural.

Again, here's an example of a failure:

________________________ test_default_health ________________________    def test_default_health():        health = get_default_health('warrior')>       assert health == 95E       assert 80 == 95tests\test_assert_demo.py:25: AssertionError

Pytest shows the line of the failure, as well as the variables and expressions ...