pytest Quick Start Guide

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.pymylib/    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 environments

The main disadvantage with this approach is that some folks don't like the added package size of the extra modules, which are now packaged together with the rest of the code, but this is usually minimal and of little concern.

As an ...