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pj
dbfbc14eb5
The page gains four fields that differ one rung at a time: a bound label, a placeholder, a placeholder an aria-label outranks, and the name the form gives the field. Only the placeholder rung was reachable before, so hintText and placeholderValue named a field on the goja host and no element at all on web for the other three, and named the field here and nothing there for the rung the ladder passed over. placeholder was measured empty on both hosts because nothing on the page carried the attribute, which said nothing about it. It now names the field the markup wrote it on and not the field whose hint is its aria-label. The third resolver reads the same selectors: what TranslateStringSelector builds for a hint key has to match nothing over CDP rather than the field carrying the value as a placeholder.
sanderling
Autonomous property-based testing for mobile and web apps.
You write rules that must always hold about your app. sanderling explores the app on its own for minutes or hours, performing thousands of taps, swipes, and inputs, and records every step where a rule breaks. No scripted test paths. One TypeScript spec runs against Android, iOS, and web builds of the same app.
import { extract, always } from "@sanderling/spec";
import { defaultActions } from "@sanderling/spec/defaults";
import { noUncaughtExceptions } from "@sanderling/spec/defaults/properties";
const balance = extract("balance", s =>
parseInt(s.ax.find({ testTag: "Balance" })?.text ?? "0", 10));
export const properties = {
noUncaughtExceptions,
balanceNeverNegative: always(() => balance.current >= 0),
};
export const actionsRoot = defaultActions;
Every run produces a trace: one JSON line and one screenshot per step. sanderling replay opens it in a web UI for stepping through actions, screenshots, property timelines, and violations.
Alpha. Android, iOS, and web (Chrome driver only). Full scope in the v0.1.0 roadmap.
Docs
- Introduction: what property-based testing is and how sanderling works
- Case study: Folio: sanderling finding a real bug in a mobile app
- Getting started: install the CLI and run it against Folio
- Spec language reference
- Examples: folio (KMP, Android/iOS/web), folio-web (React + Vite)
- Architecture for contributors
sanderling, a wading bird that probes the shoreline for bugs that lie beneath.