Agent Skill · LambdaTest

testcafe-skill

Generates TestCafe automation tests in JavaScript or TypeScript. Supports local and TestMu AI cloud. Triggers on: "TestCafe", "test cafe", "fixture/test".

Provider: LambdaTest Path in repo: testcafe-skill/SKILL.md

Skill body

TestCafe Automation Skill

Core Patterns

Basic Test

import { Selector } from 'testcafe';

fixture('Login').page('https://example.com/login');

test('Login with valid credentials', async t => {
    await t
        .typeText('#username', 'user@test.com')
        .typeText('#password', 'password123')
        .click('button[type="submit"]')
        .expect(Selector('.dashboard').exists).ok();
});

Selectors

const submitBtn = Selector('button').withText('Submit');
const listItems = Selector('.item').count;
const nthItem = Selector('.item').nth(2);
const filtered = Selector('.item').withAttribute('data-status', 'active');

Page Model

import { Selector, t } from 'testcafe';

class LoginPage {
    constructor() {
        this.usernameInput = Selector('#username');
        this.passwordInput = Selector('#password');
        this.submitButton = Selector('button[type="submit"]');
    }
    async login(username, password) {
        await t
            .typeText(this.usernameInput, username)
            .typeText(this.passwordInput, password)
            .click(this.submitButton);
    }
}
export default new LoginPage();

TestMu AI Cloud

See reference/cloud-integration.md for full cloud setup and shared/testmu-cloud-reference.md for capabilities.

export LT_USERNAME=your_username
export LT_ACCESS_KEY=your_key
npx testcafe "lambdatest:Chrome@latest:Windows 11" tests/

Anti-Patterns

Bad Good Why
await t.wait(5000) Smart assertions with timeout Arbitrary delays
Deep CSS selectors Selector().withText() Fragile
No error screenshots t.takeScreenshot() on failure Missing debug info

Quick Reference

Task Command
Run all npx testcafe chrome tests/
Run headless npx testcafe chrome:headless tests/
Run specific npx testcafe chrome tests/login.js
Multiple browsers npx testcafe chrome,firefox tests/
Live mode npx testcafe chrome tests/ --live
Screenshot await t.takeScreenshot()
Resize await t.resizeWindow(1280, 720)

Deep Patterns

For advanced patterns, debugging guides, CI/CD integration, and best practices, see reference/playbook.md.

Skill frontmatter

languages: JavaScriptTypeScript category: e2e-testing license: MIT metadata: {"author" => "TestMu AI", "version" => "1.0"}