Learn Pytest in 60 Minutes:Unit Testing Framework for Python

The pytest framework makes it easy to write small tests, yet scales to support complex functional testing for applications and libraries.

pytest is a mature full-featured Python testing tool that helps you write better programs.

Features

Detailed info on failing assert statements (no need to remember self.assert* names)

Auto-discovery of test modules and functions

Modular fixtures for managing small or parametrized long-lived test resources

Can run unittest (including trial) and nose test suites out of the box

Python 2.7, Python 3.4+, PyPy 2.3, Jython 2.5 (untested)

Rich plugin architecture, with over 315+ external plugins and thriving community