Refs: https://www.elearningworld.org/behat-part-one/ and https://www.elearningworld.org/behat-part-two/

sudo -u www-data php admin/tool/behat/cli/run.php --tags="@format_grid"

Pause execution step:

And I pause scenario execution

Ref: https://moodle.org/mod/forum/discuss.php?d=279825.