pytest-unittest-assertion (PT009)

Derived from the flake8-pytest-style linter.

Fix is sometimes available.

What it does

Checks for uses of assertion methods from the unittest module.

To make use of pytest's assertion rewriting, a regular assert statement is preferred over unittest's assertion methods.

import unittest


class TestFoo(unittest.TestCase):
    def test_foo(self):
        self.assertEqual(a, b)

Use instead:

import unittest


class TestFoo(unittest.TestCase):
    def test_foo(self):
        assert a == b