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// The clicks survey: drives a fresh Lens through setup and its main features in Chromium and counts the clicks,
// keystrokes and passkey prompts each takes, per feature and per page. ci/clicks/run.sh starts the fresh Lens; see
// README.md for the rules and how to compare with the baseline.
//
// node survey.mjs [--base http://localhost:3000] [--out results] [--compare baseline.json] [--only id,id]
// [--device desktop|phone] [--no-installer] [--fail-on-regression]
//
// --device phone runs the same journeys on a phone-sized touch screen (taps and swipes instead of clicks, no keyboard
// shortcuts) and writes results/clicks-phone.json and clicks-phone.md.
import { spawn } from "node:child_process";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { chromium, devices } from "playwright";
import { startFakeModel } from "./fake-model.mjs";
import { JOURNEYS } from "./journeys.mjs";
import { Meter, pageKey } from "./meter.mjs";
import { compare, markdown } from "./report.mjs";
const here = path.dirname(fileURLToPath(import.meta.url));
const repo = path.resolve(here, "../..");
/** Where the survey runs: a desktop browser, or a phone (Pixel 7: 412x839, touch, no hover or keyboard shortcuts). */
const DEVICES = {
desktop: { name: "1400x900", context: { viewport: { width: 1400, height: 900 } }, suffix: "" },
phone: { name: "Pixel 7, 412x839, touch", context: { ...devices["Pixel 7"] }, suffix: "-phone", touch: true },
};
function parse(argv) {
const a = { base: "http://localhost:3000", out: path.join(here, "results"), installer: true, failOnRegression: false, device: "desktop" };
for (let i = 0; i < argv.length; i++) {
const k = argv[i];
if (k === "--base") a.base = argv[++i];
else if (k === "--out") a.out = argv[++i];
else if (k === "--compare") a.compare = argv[++i];
else if (k === "--only") a. Set(argv[++i].split(","));
else if (k === "--no-installer") a.installer = false;
else if (k === "--device") a.device = argv[++i];
else if (k === "--fail-on-regression") a.failOnRegression = true;
else if (k === "--headed") a.headed = true;
else if (k === "--state") a.state = argv[++i];
else throw new Error(`unknown argument ${k}`);
}
if (!DEVICES[a.device]) throw new Error(`--device is one of ${Object.keys(DEVICES).join(", ")}`);
return a;
}
async function startInstaller(base) {
const dir = process.env.LENS_SURVEY_DIR || fs.mkdtempSync(path.join(os.tmpdir(), "lens-survey-"));
const proc = spawn(
"python3",
[path.join(repo, "installer/lens_installer.py"), "--no-browser", "--port", "3990", "--dir", dir,
"--script", path.join(here, "fake-install.sh")],
{
env: {
...process.env,
LENS_INSTALLER_TOKEN: "survey-token",
LENS_SURVEY_SETUP_URL: `${base}/setup?code=${process.env.LENS_SETUP_CODE || "survey-code"}`,
},
stdio: "ignore",
},
);
for (let i = 0; i < 60; i++) {
try {
await fetch("http://127.0.0.1:3990/");
return proc;
} catch {
await new Promise((r) => setTimeout(r, 500));
}
}
proc.kill();
throw new Error("the web installer didn't start");
}
/** For each page in the primary navigation (and its tabs and sections): clicks from Home, and its controls. */
async function surveyPages(page, base, phone) {
const pages = [];
const controls = () =>
page.evaluate(() => {
const main = document.querySelector("main") || document.body;
const seen = [...main.querySelectorAll("a[href], button, input, select, textarea, [role=tab], [role=switch], [role=radio]")];
// the page's own controls: not the settings sections or tabs that lead to other pages, nor what a closed fold
// (details) keeps out of sight, which Chromium still lays out
return seen.filter((el) => el.offsetParent !== null && !el.closest("[hidden], nav, details:not([open]) > :not(summary)")).length;
});
const settle = () => page.waitForTimeout(1200);
// A page's controls once it ha
8000
s drawn: a page still loading what it shows has none for a moment, so none is counted
// again for a few seconds before it's taken
const counted = async () => {
let n = await controls();
for (let tries = 0; n === 0 && tries < 12; tries++) {
await page.waitForTimeout(300);
n = await controls();
}
return n;
};
// The controls the floating Ask button covers with the page (and anything scrolling in it) at its end, where
// scrolling can't carry them clear: it should rise above them or step aside, so any is a failure.
const askCovers = async () => {
await page.evaluate(() => {
window.scrollTo(0, document.documentElement.scrollHeight);
for (const el of document.querySelectorAll("main *"))
if (el.scrollHeight > el.clientHeight && /(auto|scroll)/.test(getComputedStyle(el).overflowY)) el.scrollTop = el.scrollHeight;
});
await page.waitForTimeout(600); // the button moves on the next frame, then slides
return page.evaluate(() => {
const ask = document.querySelector("[data-ask-button]");
if (!ask || getComputedStyle(ask).visibility === "hidden") return [];
const a = ask.getBoundingClientRect();
const out = [];
const all = "a[href], button, input:not([type=hidden]), select, textarea, [role=tab], [role=switch], [role=checkbox], [role=radio]";
for (const el of document.querySelectorAll(all)) {
if (el.closest("[data-ask-button], [data-page-chat]")) continue;
const r = el.getBoundingClientRect();
if (r.height > innerHeight / 3) continue; // a big field: the button covers a corner of it (ask-place.ts)
const [x0, x1, y0, y1] = [Math.max(r.left, a.left), Math.min(r.right, a.right), Math.max(r.top, a.top), Math.min(r.bottom, a.bottom)];
if (x1 - x0 < 4 || y1 - y0 < 4) continue;
// the button is on top there, and right under it is this control (not one a closed fold keeps out of sight)
const [top, ...under] = document.elementsFromPoint((x0 + x1) / 2, (y0 + y1) / 2);
const next = under.find((e) => !e.closest("[data-ask-button]"));
if (top?.closest("[data-ask-button]") && next && el.contains(next))
out.push((el.getAttribute("aria-label") || el.textContent || el.tagName).replace(/\s+/g, " ").trim().slice(0, 60));
}
return out;
});
};
const visit = async (entry) => {
entry.askCovers = await askCovers();
if (entry.askCovers.length) console.log(`FAIL ${entry.page}: the Ask button covers ${entry.askCovers.join(", ")}`);
pages.push(entry);
};
await page.goto(base + "/", { waitUntil: "domcontentloaded" });
await settle();
if (phone) await page.getByRole("button", { name: "Open navigation" }).tap();
const nav = await page
.getByRole("navigation", { name: "Primary" })
.getByRole("link")
// the label without the count that can follow it (Library 1)
.evaluateAll((els) => els.map((e) => ({ label: (e.querySelector("span")?.textContent ?? e.textContent).trim(), href: e.getAttribute("href") })));
const items = nav.filter((n, i) => n.label && n.label !== "Lens" && !n.label.startsWith("Notes ·") && nav.findIndex((m) => m.href === n.href && m.label === n.label) === i);
// On a phone the navigation sits behind the menu button: one more tap to reach every page
const menu = phone ? 1 : 0;
for (const item of items) {
// one of each kind of page: the notes in the navigation are one page, whichever notes the journeys left there
if (item.href && pages.some((p) => p.page === pageKey(base + item.href))) continue;
await page.goto(base + "/", { waitUntil: "domcontentloaded" });
await settle();
if (phone) await page.getByRole("button", { name: "Open navigation" }).tap();
// found by where it goes: a link's name can carry more than its label (a note the assistant wrote is "Written by
// the assistant" and its title)
const link = page.getByRole("navigation", { name: "Primary" }).locator(`a[href="${item.href}"]`).first();
await (phone ? link.tap() : link.click());
await page.waitForLoadState("domcontentloaded");
await settle();
const key = pageKey(page.url());
await visit({ page: key, label: item.label, reach: 1 + menu, controls: await counted() });
// a second level: settings sections, and tabs that are links (Admin, Sensors, Pipelines)
const sub = await page
.locator("main")
.locator('nav[aria-label="Settings sections"] a, [role=tablist] a[role=tab]')
.evaluateAll((els) =>
els.map((e) => ({ label: e.innerText.replace(/\s+/g, " ").replace(/ \d+$/, "").trim(), href: e.getAttribute("href") })),
);
for (const s of sub) {
if (!s.href || pages.some((p) => p.page === pageKey(base + s.href))) continue;
await page.goto(base + s.href, { waitUntil: "domcontentloaded" });
await settle();
await visit({ page: pageKey(page.url()), label: `${item.label} › ${s.label}`, reach: 2 + menu, controls: await counted() });
}
}
return pages;
}
async function main() {
const a = parse(process.argv.slice(2));
const model = await startFakeModel(Number(process.env.LENS_SURVEY_MODEL_PORT || 11434));
const installer = a.installer ? await startInstaller(a.base) : null;
const browser = await chromium.launch({ headless: !a.headed });
// --state: keep the sign-in between runs while writing journeys (not for measuring: a run starts signed out)
const state = a.state && fs.existsSync(a.state) ? a.state : undefined;
const device = DEVICES[a.device];
const context = await browser.newContext({ ...device.context, locale: "en-US", storageState: state });
const page = await context.newPage();
page.setDefaultTimeout(20000);
// A passkey authenticator that says yes, as a person touching their fingerprint reader would
const cdp = await context.newCDPSession(page);
await cdp.send("WebAuthn.enable");
await cdp.send("WebAuthn.addVirtualAuthenticator", {
options: { protocol: "ctap2", transport: "internal", hasResidentKey: true, hasUserVerification: true,
isUserVerified: true, automaticPresenceSimulation: true },
});
const meter = new Meter(page, { touch: !!device.touch });
const ctx = {
base: a.base, page, meter, here, code: process.env.LENS_SETUP_CODE || "survey-code", installer: !!installer,
phone: !!device.touch,
};
const base = a.compare ? JSON.parse(fs.readFileSync(a.compare, "utf8")) : null;
// A journey that failed in the baseline too (one that can't be done on a phone yet) is reported, not a new failure
const failedBefore = new Set((base?.journeys || []).filter((j) => !j.ok).map((j) => j.id));
let failed = 0;
for (const j of JOURNEYS) {
if (a.only && !a.only.has(j.id)) continue;
if (j.needs === "installer" && !installer) continue;
meter.start(j.module, j.feature, j.note);
meter.journey.id = j.id;
try {
if ("ns" in j) {
// Starts with this namespace picked ("" for all namespaces), whatever the journey before left: not counted
await page.goto(a.base + "/", { waitUntil: "domcontentloaded" });
await page.evaluate((ns) => (ns ? localStorage.setItem("lens.namespace", ns) : localStorage.removeItem("lens.namespace")), j.ns);
}
if (j.from) {
await page.goto(a.base + j.from, { waitUntil: "domcontentloaded" });
await page.getByRole("banner").waitFor();
await page.waitForTimeout(2000); // hydrated, so the first click lands
}
await j.run(ctx);
const r = meter.end(true);
console.log(
`ok ${j.id.padEnd(22)} ${String(r.clicks).padStart(3)} ${ctx.phone ? "taps " : "clicks"} ${String(r.keys).padStart(4)} keys ${r.prompts} prompts` +
(ctx.phone ? ` ${r.swipes} swipes` : ""),
);
} catch (e) {
if (!failedBefore.has(j.id)) failed++;
fs.mkdirSync(a.out, { recursive: true });
await page.screenshot({ path: path.join(a.out, `failed-${j.id}${device.suffix}.png`) }).catch(() => {});
meter.end(false, e.message);
console.log(`${failedBefore.has(j.id) ? "fail (as in the baseline)" : "FAIL"} ${j.id}: ${String(e.message).split("\n")[0]}`);
}
}
if (a.state) await context.storageState({ path: a.state });
const pages = a.only ? [] : await surveyPages(page, a.base, ctx.phone);
await browser.close();
if (installer) {
// and wait for it to go, so a survey straight after this one gets its port
const gone = new Promise((r) => (installer.exitCode != null || installer.signalCode != null ? r() : installer.once("exit", r)));
installer.kill();
await gone;
}
model.close();
const result = {
surveyed: new Date().toISOString(),
commit: process.env.GITHUB_SHA || "",
viewport: device.name,
device: a.device,
journeys: meter.journeys,
pages,
};
fs.mkdirSync(a.out, { recursive: true });
const name = `clicks${device.suffix}`;
fs.writeFileSync(path.join(a.out, `${name}.json`), JSON.stringify(result, null, 2) + "\n");
fs.writeFileSync(path.join(a.out, `${name}.md`), markdown(result, base));
console.log(`\nwrote ${path.join(a.out, `${name}.json`)} and ${name}.md`);
// The API's log beside the results, so a failure in CI can be read from the artifact
if (process.env.LENS_SURVEY_BACKEND_LOG) fs.copyFileSync(process.env.LENS_SURVEY_BACKEND_LOG, path.join(a.out, `backend${device.suffix}.log`));
if (base) {
const worse = compare(result, base).filter((d) => d.worse);
for (const d of worse) console.log(`worse: ${d.id} ${d.what}`);
if (worse.length && a.failOnRegression) process.exitCode = 1;
}
if (failed || pages.some((p) => p.askCovers.length)) process.exitCode = 1;
}
await main();