InsertTest::testMultiInsert in core/tests/Drupal/KernelTests/Core/Database/InsertTest.php
Tests that we can insert multiple records in one query object.
InsertTest::testRepeatedInsert in core/tests/Drupal/KernelTests/Core/Database/InsertTest.php
Tests that an insert object can be reused with new data after it executes.
InsertTest::testSimpleInsert in core/tests/Drupal/KernelTests/Core/Database/InsertTest.php
Tests very basic insert functionality.
tracker_cron in core/modules/tracker/tracker.module
Implements hook_cron().