@antithesishq/bombadil

Bombadil is property-based testing for web UIs, autonomously exploring and validating correctness properties, finding harder bugs earlier.

Install

npm install --save-dev @antithesishq/bombadil

Usage

Add a script to your package.json:

{
  "scripts": {
    "test": "bombadil browser test https://your-app.example.com"
  }
}

Then run it with npm test. This also gives you TypeScript type definitions for writing specifications.

Write custom properties:

import { always, eventually, extract } from "@antithesishq/bombadil/browser";

const title = extract((state) =>
  state.document.querySelector("h1")?.textContent ?? ""
);

export const has_title = always(() => title.current.trim() !== "");

Or re-export the default properties:

export * from "@antithesishq/bombadil/browser/defaults";

Documentation

See the Bombadil repository for full usage instructions and more examples.