The **unexpected-function-equality** plugin extends the Unexpected assertion library (v10+) with a custom `<function> to equal <function>` check that ignores whitespace, comments, and formatting differences. It works by parsing each function, pretty‑printing it, and then comparing the resulting strings, making it useful for tests that involve generated or dynamically‑created code. The package targets JavaScript developers who use Unexpected for unit testing and need reliable function equivalence checks.