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Test Generator

Writes unit tests covering happy paths, edge cases, and failure modes for any function.

Have ready: Paste the function and its signature/contract

Fill in · 7 fields

TEST FRAMEWORK, e.g. pytest / vitest / JUnitPASTE THE FUNCTION WITH ITS SIGNATURE AND DOCSTRINGLIST OR "NONE"ANY DOMAIN-SPECIFIC EDGE CASESTEST FRAMEWORKscenarioexpected

Your prompt

Write unit tests for this function in [TEST FRAMEWORK, e.g. pytest / vitest / JUnit].

Function:
[PASTE THE FUNCTION WITH ITS SIGNATURE AND DOCSTRING]
Its dependencies (DB, network, filesystem): [LIST OR "NONE"]

Generate:
1. Happy-path tests for the documented behavior.
2. Edge cases: empty inputs, null/None, zero, max values, unicode, and [ANY DOMAIN-SPECIFIC EDGE CASES].
3. Failure modes: invalid input, dependency errors, assert the exact exception/error.
4. If the function touches the network/DB/filesystem, show how to mock it in [TEST FRAMEWORK].

Use descriptive test names in the form test_[scenario]_[expected]. Do not test implementation details, only observable behavior. After the tests, list any behavior that is ambiguous in the code and ask me to clarify.

Paste it into Muse or any assistant. Blank fields stay as [brackets].

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