unittest

Jul 26

Python: inspect interleaved unittest.mock calls with attached mocks

Adam Johnson

When you use a unittest.mock mock, you often make assertions on the calls it received, such as through the mock_calls list. But sometimes you want to assert on the order of calls across multiple mocked functions, for example to check that steps in a process happen in the right sequence. To do...

python posts unittest

Jul 24

Python: spy on function calls with unittest.mock’s wraps

Adam Johnson

Testing terminology distinguishes between different kinds of test doubles, including: mocks, which replace the real behaviour of a function. spies, which wrap a function, recording calls for later assertions. Despite its name, unittest.mock is not just for mocks: it can also create spies,...

python posts unittest