Expert Python Programming - Third Edition

Acceptance tests

An acceptance test focuses on a feature and deals with the software like a black box. It just makes sure that the software really does what it is supposed to do, using the same media as that of the users, and observes application output. These tests are sometimes written out of the ordinary development cycle to validate that the application meets defined requirements. They are usually run as a checklist over the software. Often, these tests are not done through TDD, and are built by managers, QA staff, or even customers. In that case, they are often called user acceptance tests.

Still, they can and they should be done with TDD principles in mind. Acceptance tests can be provided before the features are written. Developers ...