Toot

Written by Pamela Fox on 2024-12-06 at 23:02

I had a lot of tricky tests to write today that needed mocks against an async SDK.

To get started, I tried out GitHub Copilot "generate tests".

Observations:

• Copilot really liked using MagicMock, whereas I generally construct the actual class and use monkeypatch.setattr to mock the methods used.
• Copilot's tests did often pass, after a few tweaks.
• When a test didn't pass, I found it harder to debug MagicMock mocks, because they mocked too much- I wasn't getting errors for undefined attrs.

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