# Run the phpunit job leveraging concurrency. Turned off by default, set to 1 to enable concurrency. This will use the Drupal core `run-tests.sh` script currently used in DrupalCI for both core and contrib.
# See also: https://git.drupalcode.org/project/gitlab_templates/-/blob/main/includes/include.drupalci.variables.yml#L71-73
_PHPUNIT_CONCURRENT:'1'
# WHen we specify '1', PHPUnit reports 'ERROR: No valid tests were specified.'