BootstrapWatchdogTestCase::testWatchdogLogging in core/modules/simpletest/tests/bootstrap.test

EnableDisableTestCase::assertSuccessfulDisableAndUninstall in core/modules/system/tests/system.test

Disables and uninstalls a module and asserts that it was done correctly.

EnableDisableTestCase::testEnableDisable in core/modules/system/tests/system.test

Test that all core modules can be enabled, disabled and uninstalled.