Test if code is executed from within a py.test session

Question

I\'d like to connect to a different database if my code is running under py.test. Is there a function to call or an environment variable that I can test that will tell me i

Answer 1

This could be done by setting an environment variable inside the testing code. For example, given a project

conftest.py
mypkg/
    __init__.py
    app.py
tests/
    test_app.py

In test_app.py you can add

import os
os.environ['PYTEST_RUNNING'] = 'true'

And then you can check inside app.py:

import os
if os.environ.get('PYTEST_RUNNING', '') == 'true':
    print('pytest is running')