Selenium With Karma

---

Run Karma tests on the TestMu AI cloud grid. This guide covers setup, running a sample test, configuring capabilities, and testing locally hosted pages.

Sample repo

All the code used in this guide is available in the sample repository.

View on GitHub

Prerequisites

---

Complete these steps before integrating Karma with TestMu AI.

1. Create a TestMu AI account and get your username and access key from the dashboard.
2. Install NodeJS and npm from nodejs.org.
3. Install the latest version of JavaScript.
4. Install Angular CLI: npm install -g @angular/cli

Step 1: Clone the Sample Project

---

Clone the TestMu AI Karma sample repository to your local machine.

git clone https://github.com/LambdaTest/angular-karma-sample
cd angular-karma-sample

Install the required dependencies and Karma CLI globally:

npm install -g karma-cli
npm install

Step 2: Set Your Credentials

---

Set your TestMu AI username and access key as environment variables.

macOS / Linux

export LT_USERNAME="undefined"
export LT_ACCESS_KEY="undefined"

Windows

set LT_USERNAME="undefined"
set LT_ACCESS_KEY="undefined"

Step 3: Configure Your Test Capabilities

---

Update the capabilities in the karma.conf.js file to define the browser and platform settings.

customLaunchers: {
        chrome: {
            base: 'WebDriver',
            config: webdriverConfig,
            browserName: 'chrome',
            platform: 'windows 10',
            version: '71.0',
            name: 'Karma With Heartbeat',
            user: process.env.LT_USERNAME,
            accessKey: process.env.LT_ACCESS_KEY,
            pseudoActivityInterval: 5000 // 5000 ms heartbeat
        }
    }

tip

Generate capabilities for your test requirements with the Capabilities Generator.

Step 4: Run the Test

---

Execute the test using the following command.

karma start karma.conf.js

Parallel tests:

ng test

Step 5: View Your Results

---

After running the test, view your results on the TestMu AI Automation Dashboard.

The dashboard provides:

• Video recordings of each test session
• Screenshots captured at each step
• Console logs from the browser
• Network logs for debugging
• Detailed command logs

Run Karma Tests Using Agent Skills

---

Use AI coding assistants to generate and run Karma tests with the TestMu AI Agent Skill.

The karma-skill is part of TestMu AI Agent Skills - structured packages that teach AI coding assistants how to write production-grade test automation.

Install the skill:

git clone https://github.com/LambdaTest/agent-skills.git
cp -r agent-skills/karma-skill .claude/skills/

# For Cursor / Copilot
cp -r agent-skills/karma-skill .cursor/skills/

tip

Install all available framework skills at once by cloning the repository directly into your tool's skills directory (e.g., .claude/skills/, .cursor/skills/).