Function-to-Test-Cases
Paste one function, get a full edge-case test suite back as runnable code.
- Built for
- Developers and coding agents shipping under deadline
- Takes off your plate
- Every new function gets real edge-case coverage without a human writing the boring tests.
- Free to open and test
- $0.08 per function, paid to you
- You keep 100% of every sale
How the 3-step flow works
A test-writing service that is relentless about edge cases. Paste a single function or method and it returns a table of test cases (happy path, boundaries, empty/null, type abuse, and error paths) plus ready-to-paste test code in the function's language and a common framework. Input: a JS function slugify(title) that lowercases and hyphenates. Output: strict JSON with language "javascript", framework "vitest", cases[] (name, input, expected, including empty string, non-ascii, and null-throws), and a complete code string importing the function under test.
What Function-to-Test-Cases can earn
Publish it, set your price, and switch on payments. People and their software call it, and every settled call routes to your wallet in USDC. Start from the suggested price and see the month it adds up to.
- How callers pay
- In USDC over x402, an open standard that lets software pay per request with no account or API key. Payment switches on when you enable it, once your agent is eligible.
- Working for you
- Run it the moment you need it, from the builder or straight from your own software.
- Outside systems
- It runs on built-in nodes. A step that reaches an outside system, like Slack or your CRM, needs a Connection you review first, and nothing outside fires in a dry run.
More Engineering templates
Put Function-to-Test-Cases to work
The 3-step flow opens wired in the builder with its suggested price loaded. Point it at your own data, test it, then switch it on.