CronQueueTest::testQueueWorkerDeriver in core/modules/system/tests/src/Kernel/System/CronQueueTest.php
Tests that cron queues from derivers work.
CronQueueTest::testSuspendQueueException in core/modules/system/tests/src/Kernel/System/CronQueueTest.php
Tests suspend queue exception is handled properly.
DrupalTest::testQueue in core/tests/Drupal/Tests/Core/DrupalTest.php
Tests the queue() method.
hook_cron in core/core.api.php
Perform periodic actions.
LocaleUpdateCronTest::testUpdateCron in core/modules/locale/tests/src/Functional/LocaleUpdateCronTest.php
Tests interface translation update using cron.
locale_cron_fill_queue in core/modules/locale/locale.translation.inc
Populate a queue with project to check for translation updates.
Media::postSave in core/modules/media/src/Entity/Media.php
Acts on a saved entity before the insert or update hook is invoked.
MediaSourceTest::testThumbnail in core/modules/media/tests/src/Kernel/MediaSourceTest.php
Tests the thumbnail functionality.
UpdateMiscTest::testFetchTasks in core/modules/update/tests/src/Functional/UpdateMiscTest.php
Tests that exactly one fetch task per project is created and not more.
UpdateSemverCoreTest::testFetchTasks in core/modules/update/tests/src/Functional/UpdateSemverCoreTest.php
Tests that exactly one fetch task per project is created and not more.
update_install in core/modules/update/update.install
Implements hook_install().
update_uninstall in core/modules/update/update.install
Implements hook_uninstall().