DateTimezoneTestCase::dateMultiValueForm in modules/date/tests/date_timezone.test

Tests the submission of a date field's widget form when using unlimited cardinality

FormsTestCase::testRequiredCheckboxesRadio in modules/simpletest/tests/form.test

Tests validation for required checkbox, select, and radio elements.

MenuNodeTestCase::testMenuNodeFormWidget in modules/menu/tests/menu.test

Test creating, editing, deleting menu links via node form widget.

OptionsWidgetsTestCase::testSelectListMultiple in modules/field/modules/options/tests/options.test

Tests the 'options_select' widget (multiple select).

OptionsWidgetsTestCase::testSelectListSingle in modules/field/modules/options/tests/options.test

Tests the 'options_select' widget (single select).

TaxonomyLanguageFunctionalTest::testNodeTermLanguageCreation in modules/taxonomy/tests/taxonomy.test

Test term creation with a free-tagging vocabulary from the node form.