Selenium With Mocha

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Run Mocha 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

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Complete these steps before running Mocha Selenium tests on TestMu AI.

1. Create a TestMu AI account and get your username and access key from the dashboard.
2. Install NodeJS v6 or newer from nodejs.org.
3. Install npm from the official npm website.
4. Download Selenium JavaScript bindings from the official website.

Step 1: Clone the Sample Project

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Clone the TestMu AI Mocha Selenium sample repository to your local machine.

git clone https://github.com/LambdaTest/mocha-selenium-sample
cd mocha-selenium-sample

Install the required dependencies:

npm i
npm install selenium-webdriver

Step 2: Set Your Credentials

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

• For macOS/Linux:

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

• For Windows:

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

Step 3: Configure Your Test Capabilities

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Update the capabilities in conf/single.conf.js to define the browser and platform settings.

exports.capabilities = {
        'build': 'Mocha-Selenium-Sample', //Build name
        'name': 'Your Test Name', // Test name
        'platformName':'Windows 10', // OS name
        'browserName': 'chrome', // Browser name
        'browserVersion': 'latest', // Browser version
        'visual': false,  // To take step by step screenshot
        'network':false,  // To capture network Logs
        'console':false, // To capture console logs.
        'tunnel': false // If you want to run the localhost than change it to true
};

tip

Generate capabilities for your test requirements with the Capabilities Generator.

Step 4: Run the Test

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Execute the test using the following command.

Single test:

npm run single

Parallel tests:

npm run parallel

Step 5: View Your Results

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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 Mocha Tests Using Agent Skills

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

The mocha-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/mocha-skill .claude/skills/

# For Cursor / Copilot
cp -r agent-skills/mocha-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/).