service lock

ConfigImporterTest::setUp in drupal/core/modules/config/lib/Drupal/config/Tests/ConfigImporterTest.php

Sets up Drupal unit test environment.

DrupalUnitTestBase::containerBuild in drupal/core/modules/simpletest/lib/Drupal/simpletest/DrupalUnitTestBase.php

Sets up the base service container for this test.

install_begin_request in drupal/core/includes/install.core.inc

Begins an installation request, modifying the installation state as needed.

TestBase::configImporter in drupal/core/modules/simpletest/lib/Drupal/simpletest/TestBase.php

Returns a ConfigImporter object to import test importing of configuration.

UpdateBundle::build in drupal/core/lib/Drupal/Core/DependencyInjection/UpdateBundle.php

Implements \Symfony\Component\HttpKernel\Bundle\BundleInterface::build().

class: Drupal\Core\Lock\DatabaseLockBackend