ConfigurationUITest::testClearStagingDirectory in core/modules/config/tests/config.test

Test skipping the clearing of the staging directory after import.

ConfigurationUITest::testConfigOrderChange in core/modules/config/tests/config.test

Test comparing configs whose elements are in different order.

ConfigurationUITest::testDiff in core/modules/config/tests/config.test

Tests the screen that shows differences between active and staging.

ConfigurationUITest::testImport in core/modules/config/tests/config.test

Tests importing configuration.