How to add tests to legacy code
Short answer: Pick the riskiest module, write characterization tests that capture current behaviour, mock only external I/O, measure coverage of main paths, and merge tests separately from refactors.
Step-by-step playbooks for this task
- How to add tests to legacy code: Raise confidence in legacy code by adding characterization tests before refactoring.
- How to fix a bug and open a clean pull request: Reproduce, fix and test a reported bug, then open a small reviewable PR.
50
Add tests to an untested module
Raise confidence in legacy code by adding characterization tests before refactoring.
💻 Codingv10 reports🧪 Untested starter · score 50 = neutral
50
Bug-fix pull request workflow
Reproduce, fix and test a reported bug, then open a small reviewable PR.
💻 Codingv10 reports🧪 Untested starter · score 50 = neutral
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