Selenium/How-to/Make the browser visible or hidden
Follow the instructions located at Run tests targeting MediaWiki-Docker. For information on which environments support a visible browser, see the Selenium/Reference/Running tests page.
Browser visibility in Docker is controlled by the DISPLAY
environment variable. This variable is by default not set on macOS. It is by default set on Ubuntu Linux.
Visible
editTo make the browser visible, make sure the DISPLAY
environment variable is set to any value.
export DISPLAY=:1
If the value for your DISPLAY
variable starts with a colon, it will trigger ffmpeg to record a video of the test running. Since video recordings are only supported on Linux, if you are on a different OS, make sure your value for DISPLAY
does not start with a colon.
export DISPLAY=1
Hidden
editTo make the browser hidden, make sure the DISPLAY
environment variable is not set.
unset DISPLAY
Run Selenium tests
editnpm run selenium-test