Getting your tests right can be crucial In my , I talked about how can be used to mock out quick and simple responses to REST APIs. last blog on the topic requests_mock Returning large responses, like CSV reports Returning binary files, like images Dynamically responding via callbacks What I’ve put together is a new (beta) package for creating a simple bridge between your unit tests and the Python requests adapter API. The package is called requests-staticmock and you can find the code at and . GitHub PyPi It provides 3 new ways to mock out API responses. Pattern 1 : Mocking out an API to a set of files Consider this scenario, you want to test a class that you developed, which In it’s simplest form, you can use a context manager to inject a static asset adapter into your requests session. If the method does not exist, it will generate a 404 response. Here is a more detailed example of how this could be used. Pattern 2 : Mocking out a specific URL, but using a live instance also In this example, you might want to mock out a particular API, but keep access to another. The Adapter injector (and the context manager pattern) support specific URLs within a session, keeping the default HTTP behaviour for URLs that do not match the pattern. Pattern 3 : Having a test class generate the responses This pattern gives you access to creating a shared class that has callbacks for all of the URLs you might want to test If the method does not exist, it will generate a 404 response. Summary The goal of this library was to make it dead-simple to mock out HTTP APIs for a given API client in Python. I’m looking for feedback as this is an early beta, please raise issues on GitHub with any pointers or feature ideas.

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