Prompt Library / Unit Test Writer / for Gemini

Unit Test Writer Prompt for Gemini

This is the Gemini version of the unit test writer prompt: tests that cover the edge cases you would forget, not just the happy path. It is formatted the way Gemini takes prompts best. Free — copy it, replace the bracketed parts, and paste it in.

The prompt

✎ Editable — click in, customize or extend this prompt, then copy. Your edits copy with it.Take this prompt into the Generator and customize it to your own specification →

Using this prompt with Gemini

Gemini responds best to direct imperative instructions in a clean sequence, which is how this version is laid out. Keep constraints as short separate lines, and paste any source material after the instructions.

Replace the bracketed placeholders — [PASTE THE FUNCTION OR CODE], [LANGUAGE AND TEST FRAMEWORK] — with your own details before pasting.

Other versions and customization

See all model versions of this prompt, or open the prompt gateway to build a custom prompt from your own one-line goal, formatted for Gemini or any other model.

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Mpromp2 — the AI Prompt Generator. Every prompt in this library is free to use, including commercially.