e2e
e2e is an end-to-end testing framework for web and mobile apps. Describe a goal in natural language and an agent drives the app to reach it. Check the result with locators and assertions in the same test.
// tests/checkout.e2e.ts import { test, expect } from 'e2e'; test('a member upgrades to Pro', async ({ app, agent, screen }) => { await app.open('/settings/billing'); await agent.act('upgrade the workspace to the Pro plan'); await agent.assert('the invoice preview shows a prorated amount'); await expect(screen.getByRole('status')).toContainText('Pro'); });
An agent step that a later assertion verifies records its actions, and the next run replays them with no model calls until the app changes. Tests without agent steps need no model. Bring your own subscription, API key, or local model.
Quick start
npx e2e init
init asks for an engine, web or mobile, and a model provider, then writes a
config and an example test. The
quickstart covers the rest.
To see a finished setup in your stack, open
examples/:
Vite, Next.js, Astro, Expo, SwiftUI, Jetpack Compose, Kotlin Multiplatform,
and Flutter, each a standalone project with a passing suite.
Packages
| Package | What it does |
|---|---|
e2e |
The SDK, runner, and CLI. |
@e2e-dev/web |
Browser engine: Chromium, Firefox, and WebKit through Playwright. |
@e2e-dev/mobile |
iOS and Android engine: simulators and emulators through agent-device. |
@e2e-dev/github |
Reporter that posts results as a pull request comment. |
@e2e-dev/kernel |
Kernel hosted browsers for the web engine. |
@e2e-dev/limrun |
Limrun hosted iOS simulators and Android emulators for mobile tests. |
@e2e-dev/eas |
EAS Simulators hosted iOS simulators and Android emulators for the mobile engine. |
@e2e-dev/smol |
smol machines browsers for the web engine: by default, each attempt branches a warm Chromium microVM. |
@e2e-dev/decision |
Decision-model executors for bounded semantic actions and assertions. |
Documentation
e2e.tester.army/docs. The e2e package ships
every page, so coding agents can read them offline in node_modules/e2e/docs.
Contributing
See CONTRIBUTING.md. Questions go to Discord.
Security
Please don't open public issues for security vulnerabilities. Follow SECURITY.md and report them to security@tester.army.
Telemetry
The CLI sends anonymous usage data, such as which commands and engines run and
where runs fail, but no test content, app content, or credentials. Opt out with
npx e2e telemetry disable or E2E_TELEMETRY_DISABLED=1.
Telemetry lists every field.
Status
Note
e2e is in active development on the way to 1.0. APIs and config can still change between minor releases.
Made by TesterArmy
e2e is built by TesterArmy, the agentic testing platform that runs natural language tests on web and mobile apps, on every pull request or on a schedule.
Apache-2.0.