**interpreted** is a lightweight wrapper around the Node‑Tap testing framework that automates end‑to‑end tests for programs that transform files. By pointing it at a *source* directory (containing input files) and an *expected* directory (containing reference output files), users can define a custom test function that reads each source file, generates its output, and compares it to the expected JSON (or other formats) with built‑in or extensible type handlers. It’s aimed at developers who need a simple, configurable way to verify input‑output behavior—e.g., testing converters, compilers, or any CLI tool that reads files and produces structured results.