1// The crumb copies the page's public address on a tap and says so briefly.2import test from "node:test";3import assert from "node:assert/strict";4import fs from "node:fs";5import vm from "node:vm";67const source = fs.readFileSync("tinyclient/components.js", "utf8");8const linkSource = source.slice(source.indexOf(" // PageLink is the crumb"), source.indexOf(" // JsonView renders"));910function setup({url = "https://relay.example/wiki/notes", clipboard = true} = {}) {11 const written = [];12 class HTMLElement {13 constructor() { this.dataset = {}; this.listeners = {}; }14 getAttribute(name) { return name === "url" ? url : null; }15 addEventListener(name, fn) { this.listeners[name] = fn; }16 }17 const timers = [];18 const sandbox = {HTMLElement, navigator: clipboard ? {clipboard: {writeText: async value => { written.push(value); }}} : {}, location: {href: "https://tailnet.example/wiki/notes#x"},19 setTimeout: (fn, ms) => { timers.push({fn, ms}); return timers.length; }, clearTimeout: () => {}};20 const Constructor = vm.runInNewContext(`${linkSource}\nPageLink`, sandbox);21 const link = new Constructor();22 link.connectedCallback();23 return {link, written, timers};24}2526test("a tap copies the public address from the server, not the browser's location", async () => {27 const s = setup();28 s.link.listeners.click();29 await new Promise(resolve => setImmediate(resolve));30 assert.deepEqual(s.written, ["https://relay.example/wiki/notes"]);31 assert.equal(s.link.dataset.copied, "");32 assert.equal(s.timers[0].ms, 1500);33 s.timers[0].fn();34 assert.equal("copied" in s.link.dataset, false);35});3637test("without a clipboard nothing happens and nothing throws", async () => {38 const s = setup({clipboard: false});39 s.link.listeners.click();40 await new Promise(resolve => setImmediate(resolve));41 assert.deepEqual(s.written, []);42 assert.equal("copied" in s.link.dataset, false);43});