pytest Quick Start Guide

Pick the right place by default: testpaths

As discussed previously, a common directory structure is out-of-source layout, with tests separated from the application/library code in a tests or similarly named directory. In that layout it is useful to use the testpaths configuration option:

[pytest]testpaths = tests

This will tell pytest where to look for tests when no files, directories, or node ids are given in the command line, which might speed up test collection. Note that you can configure more than one directory, separated by spaces.