Headless Browsers Execution
Estimated reading time: 2 minutes
In essence, headless browser testing is testing a Web page’s functionality, without the presence of a GUI. One of the major advantages of using a headless browser and perform headless testing is that you can run tests more quickly in a real browser environment. Headless browsers can save project teams a tremendous amount of time and smoothly integrate into the CI/CD process.
Katalon Studiosupports headless browsers execution for both Chrome and Firefox. This tutorial will you how to execute tests using headless browsers and additional configurations (if needed) to tweak your browsers.
Configuring headless browsers
In case you need to add more desired capabilities to the browsers, then:
- Go to **Project → Settings → Execution → **Default → Select either Chrome (headless) orFirefox (headless)
- Add your desired capabilities in these settings. For example, to make your Chrome (headless) start in smaller Window size:
To find out more about desired capabilities, refer to this guide.
Executing automation tests
Execute test case/test suite
Open a test case or test suite you want to execute
Select either Chrome (headless) or Firefox (headless) from the execution items list
- Then, your current test case / test suite will be executed using the selected headless browser
Execute test suite collection
Open a test suite collection that you want to execute
Add a test suite into this test suite collection
Select the Run with field
Select either Chrome (headless) or Firefox (headless)
- Save changes to your current test suite collection
- Execute this test suite collection and Katalon Studio will use the selected environment to run
Execute using console mode execution
We recommend using headless browser in console mode execution for faster and more continuous releases.
Learn more on how to leverage Katalon Studio in CI/CD process.
- To start, generate your console mode commands by selecting either Chrome (headless) or Firefox (headless)
- Click the Build CMD button on the main toolbar.
- Execute your tests in console mode using the generated command script from Katalon Studio.
Note: The headless browsers will NOT be displayed during this execution step.