What is Selenium Headless Browser

Selenium Headless browser refers to a browser that runs headless in the background without opening a visual browser interface during testing. This means that the test process is invisible to the user, and all operations are automatically carried out in the background. Selenium supports Headless mode of multiple browsers, including Chrome and Firefox.

The main advantages of headless browser include:

Speed and performance advantages: Because there is no need to load a visual interface, the test speed in Headless mode is usually faster than that in normal mode, which is very beneficial for large-scale tests or test scenarios that need frequent execution.

Secrecy and stability: the test in Headless mode will not pop up a visible browser window, and can run silently in the background without affecting the user experience. At the same time, the test is more stable and easy to be integrated into the continuous integration (CI) system because the operation of the browser window is not needed.

Save resources: In some resource-constrained environments, such as automated testing on the server, Headless mode can save system resources and improve performance and stability.

How to use Selenium Headless Browser:

Using Selenium's Headless mode is very simple, just add the corresponding options when initializing browser objects. The following is an example of the configuration of Chrome and Firefox headless browsers:

For Chrome:

python

from selenium import webdriver

from selenium.webdriver.chrome.options import Options

chrome_options = Options()

Chrome _ options.add _ argument ('-headless') # is set to headless mode.

Chrome _ options.add _ argument ('-disable-GPU') # Disable GPU acceleration.

driver = webdriver.Chrome(options=chrome_options)

driver.get('https://www.example.com')

# Automation operation ...

driver.quit()

For Firefox:

python

from selenium import webdriver

from selenium.webdriver.firefox.options import Options

ff_options = Options()

Ff_options.headless = True # Set headless mode to True.

driver = webdriver.Firefox(options=ff_options)

driver.get('https://www.example.com')

# Automation operation ...

driver.quit()

In this way, you can use Selenium for automatic testing in headless mode without opening the browser interface.