In this blog post, Martin Sikora shares his experience of performing Python unit tests on the Google App Engine (GAE). You can test such application locally in terminal, locally on GAE test server or on a real GAE production server hosted on Google infrastructure. To achieve this objective, he used nose, a tool that extends Python’s unittest to make testing easier, with NoseGAE, a nose plugin that makes it easier to write functional and unit tests for Google App Engine applications. The blog post provides the code to run the tests on a GAE server.