7 files declare their use of FileSystem in Drupal 9
- BuildTestBase.php in core/
tests/ Drupal/ BuildTests/ Framework/ BuildTestBase.php - DirectoryTest.php in core/
tests/ Drupal/ KernelTests/ Core/ File/ DirectoryTest.php - FileSystem.php in core/
lib/ Drupal/ Core/ File/ FileSystem.php - FileSystemTempDirectoryTest.php in core/
tests/ Drupal/ KernelTests/ Core/ File/ FileSystemTempDirectoryTest.php - system.install in core/
modules/ system/ system.install - Install, update and uninstall functions for the system module.
- TestDatabase.php in core/
lib/ Drupal/ Core/ Test/ TestDatabase.php - TestSiteApplicationTest.php in core/
tests/ Drupal/ Tests/ Scripts/ TestSiteApplicationTest.php