Write tests for this function

Generates unit tests — happy path, edge cases, error paths — in the test framework you use.

Covers branches the AI can deduce from the code, not just trivial cases.

Software Engineeringtestingtdd

Function code + framework (jest / vitest / pytest / etc.)

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Output

Output will appear here after you click Run.

Or run in your favourite chatbot

Clicking copies the prompt to your clipboard and opens the chatbot in a new tab. Gemini doesn't accept URL params — paste manually with Ctrl/Cmd+V.