How to Execute Tests in Chrome Headless Mode?

The video tutorial explains the concept of headless browsers, particularly focusing on Chrome. It discusses the advantages of running tests in headless mode, such as reduced interference and potential speed improvements. The tutorial provides a step-by-step guide on configuring Chrome to run in headless mode using ChromeOptions. It also covers how to implement conditional logic in Jenkins to switch between head and headless modes, ensuring flexibility in test execution. The video concludes with a demonstration of running tests in both modes and verifying the outcomes.

What is one of the main advantages of using a headless browser?

• It is only compatible with Firefox.

• It allows tests to run faster without opening a browser window.

• It requires more system resources.

• It provides a graphical interface.

How can you configure Chrome to run in headless mode?

• By using a different web driver.

• By disabling JavaScript in Chrome settings.

• By installing a separate headless browser.

• By using ChromeOptions and adding the 'headless' argument.

What is the purpose of passing ChromeOptions to the ChromeDriver?

• To change the browser's default language.

• To enable pop-up blocking.

• To specify the browser's window size.

• To define specific behaviors like running in headless mode.

What happens when you run tests in headless mode?

• The tests require manual intervention.

• The tests run slower than in head mode.

• The tests run without any browser window opening.

• The browser opens in a minimized window.

How can you switch between head mode and headless mode in your tests?

• By using a different programming language.

• By changing the browser's default settings.

• By using conditional logic to check for 'headless' in the browser name.

• By installing a different version of Chrome.

What keyword is used to check for the presence of 'headless' in the browser name?

• equals

• matches

• contains

• includes

What is the effect of not adding the 'headless' argument in ChromeOptions?

• The tests will fail to execute.

• The browser will open in head mode.

• The browser will open in a new tab.

• The browser will not open at all.

How can you configure Jenkins to run tests in headless mode?

• By adding a new build step in Jenkins.

• By using a different Jenkins server.

• By selecting the 'headless' option in Jenkins parameters.

• By installing a Jenkins plugin.

What should you do after configuring Jenkins to run in headless mode?

• Restart the Jenkins server.

• Verify the setup by running a test build.

• Change the Jenkins theme.

• Reinstall the Jenkins software.

What is the benefit of using parameterized builds in Jenkins for headless mode?

• It enables switching between different test environments easily.

• It increases the speed of Jenkins itself.

• It reduces the need for manual testing.

• It allows for more complex test scripts.