How to Configure Puppeteer Capabilities on TestMu AI

When you run a Puppeteer test on TestMu AI, capabilities tell the cloud machine which browser, OS, resolution, and logs each session needs. Setting them correctly means every test targets the exact environment you want and captures the debugging data you need. You define these capabilities in your Puppeteer script and pass them to the CDP endpoint at connection time.

The TestMu AI Capability Generator can auto-create the capabilities class for your Puppeteer scripts. The table below lists the capabilities you can configure and an example of each.

Key	Expected Values	Description	Capability
browserName	Chrome, Edge	Specify the browser to test on	`const capability = {"browserName": "Chrome"}`
browserVersion	Chrome 83 & above, Edge 83 & above	Specify the browser version to test on	`const capability = {"browserVersion": "113.0"}`
platform	Windows: 11, 10, 8, 8.1, 7 macOS: Monterey, Big Sur, Catiline, Mojave	Specify the platform name	`const capability = { "LT:Options": {"platform": "Windows 10",}}`
build	Puppeteer Sample Build	Represent the build number for your test	`const capability = { "LT:Options": {"build": "<build_name>",}}`
name	Puppeteer Sample Test	Represents the name of a test	`const capability = { "LT:Options": {"name": "<test_name>",}}`
resolution	Specifying your desktop resolution before initiating the test	String, Default value: 1920x1080 Windows 11 & 10: `1024x768, 1280x800, 1280x1024, 1366x768, 1440x900, 1680x1050, 1600x1200, 1920x1200, 1920x1080 and 2048x1536` macOS: `1024x768, 1280x960, 1280x1024, 1600x1200 and 1920x1080`	`const capability = {"LT:Options": {"resolution": '1024x768'}}`
projectName	Example: My Test	Represent the name of your project	`const capability = { "LT:Options": {"projectName": "<project_name>",}}`
tags	["tag1", "tag2", "tag3"]	Group your Puppeteer tests	`const capability = {"LT:Options": { "tags": ["tag1", "tag2", "tag3"], }}`
buildTags	["build1", "build2", "build3"]	Group your Puppeteer builds	`const capability = {"LT:Options": { "buildTags": ["build1", "build2", "build3"] }}`
network	true/false	Enable network logs	`const capability = { "LT:Options": {"network": true,}}`
console	true/false	Enable browser console logs	`const capabilities = { "LT:Options": {"console": true,}}`
video	true/false	Enable video recording of the entire screen	`const capability = { "LT:Options": {"video": true,}}`
tunnel	true/false	Enable tunnel for local testing	`const capability = { "LT:Options": {"tunnel": true,}}`
tunnelName	true/false	Specify tunnel name	`const capability = { "LT:Options": {"tunnelName": "<tunnel_name>",}}`
geoLocation	AR (Argentina)	Specify country code	`const capability = { "LT:Options": {"geoLocation": "AR",}}`
idleTimeout	number	Specifies the timeout of the commands in seconds. Default value: 300 Max value: 1800 If a value greater than 1800 is added, idleTimeout will be set to 1800.	`const capability = { "LT:Options": {"idleTimeout": "<number>",}}`