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

Tests export of configuration.

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

Tests importing configuration.

FieldUIManageFieldsTestCase::testDefaultValue in core/modules/field_ui/tests/field_ui.test

Tests that default value is correctly validated and saved.

FormsRebuildTestCase::testRebuildPreservesValues in core/modules/simpletest/tests/form.test

Tests preservation of values.

SystemThemeFunctionalTest::testThemeSettings in core/modules/system/tests/system.test

Test theme settings.

UserCreateTestCase::testUserAdd in core/modules/user/tests/user.test

Create a user through the administration interface and ensure that it displays in the user list.

ViewsExposedFormTest::testExposedAdminUi in core/modules/views/tests/views_exposed_form.test

Tests the admin interface of exposed filter and sort items.

ViewsTestCase::helperButtonHasLabel in core/modules/views/tests/views_query.test

Helper function to check whether a button with a certain id exists and has a certain label.