By catch on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
12.0.x
Introduced in version: 
12.0.0
Issue links: 
https://www.drupal.org/node/3614825
Description: 

FunctionalTestSetupTrait::installModulesFromClassProperty() has been deprecated with no replacement. Modules specified in the $modules class property are now installed alongside other modules in the Drupal installer, instead of in a separate step after Drupal is installed.

In some cases test classes may want to dynamically change the list of classes installed via the class property, this can be achieved by overriding the new FunctionalTestSetupTrait::getModulesFromClassProperty() method.

The private method doInstallModulesFromClassProperty has been removed from PerformanceTestTrait.

Impacts: 
Module developers