Spec authors write specs in TypeScript that describe what an app should always do (safety invariants), generate weighted actions to exercise the app, and extract structured state from the accessibility tree. The uatu CLI picks up the spec and drives the app under test.

Install

npm install --save-dev @uatu/spec

Usage

import { extract, always, actions, Tap, weighted } from "@uatu/spec";

export const spec = {
  extract: extract((tree) => ({
    onHomeScreen: tree.some((n) => n.text === "Home"),
  })),

  always: always(({ state }) => state.onHomeScreen || !state.startedOnHome),

  actions: actions(({ tree }) =>
    weighted([
      [1, Tap(tree.first((n) => n.text === "Checkout"))],
    ]),
  ),
};

Version compatibility

@uatu/spec is released in lockstep with the uatu CLI. Pin the same major/minor version as your installed uatu binary.

License

Apache-2.0