https://www.drupal.org/node/2988752
\Drupal\simpletest\InstallerTestBase deprecated in favor of...
Oct 19, 2022 - \Drupal\simpletest\InstallerTestBase has been deprecated in favor of \Drupal\FunctionalTests\Installer\InstallerTestBase. All setUp() logic should be moved to...
in favordrupalsimpletestinstallertestbasedeprecated