Book Image

pytest Quick Start Guide

By : Bruno Oliveira
Book Image

pytest Quick Start Guide

By: Bruno Oliveira

Overview of this book

Python's standard unittest module is based on the xUnit family of frameworks, which has its origins in Smalltalk and Java, and tends to be verbose to use and not easily extensible.The pytest framework on the other hand is very simple to get started, but powerful enough to cover complex testing integration scenarios, being considered by many the true Pythonic approach to testing in Python. In this book, you will learn how to get started right away and get the most out of pytest in your daily work?ow, exploring powerful mechanisms and plugins to facilitate many common testing tasks. You will also see how to use pytest in existing unittest-based test suites and will learn some tricks to make the jump to a pytest-style test suite quickly and easily.
Table of Contents (9 chapters)

Organizing files and packages

Pytest needs to import your code and test modules, and it is up to you how to organize them. Pytest supports two common test layouts, which we will discuss next.

Tests that accompany your code

You can place your test modules together with the code they are testing by creating a tests folder next to the modules themselves:

setup.py
mylib/
tests/
__init__.py
test_core.py
test_utils.py
__init__.py
core.py
utils.py

By putting the tests near the code they test, you gain the following advantages:

  • It is easier to add new tests and test modules in this hierarchy and keep them in sync
  • Your tests are now part of your package, so they can be deployed and run in other...