The mock system relies on the PUBS_TESTS_MODE environmental variable. See the `tests/mock_requests.py` code for details. By defaults, fast mock tests are used with data pre-fetched from real calls.
1. Install the dependencies using: > pip install -r requirements.txt 2. Run the tests using: > python -m unittest discover If you use nosetest, it will complain about addExpectedFailure, which you can safely disregard.