Pytest’s parametrize is a great feature for writing tests without repeating yourself needlessly. (If you haven’t seen it before, read Starting with pytest’s parametrize first). When the data gets comp

I have a new small project: edtext provides text selection and manipulation functions inspired by the classic ed text editor. I’ve long used cog to build documentation and HTML presentations. Cog inte

Two testing-related things I found recently. Unified exception testing Kacper Borucki blogged about parameterizing exception testing, and linked to pytest docs and a StackOverflow answer with similar

Site removed .html extensions from URLs after 24 years because someone said they looked outdated like files.

Hypothesis can randomly generate schemas (not just data) to test a Hasher class, avoiding false positives from type mismatches like [0] vs [False].

Author creates a fingerprinting class for nested data structures but struggles to write comprehensive tests for all possible data shapes.

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Mocking in the wrong location may work initially but breaks later when code changes, causing hard-to-debug test failures.