FIELD_CARDINALITY_UNLIMITED

AJAXMultiFormTestCase::setUp in modules/simpletest/tests/ajax.test

Sets up a Drupal site for running functional and integration tests.

FieldFormTestCase::setUp in modules/field/tests/field.test

Set the default field storage backend for fields created during tests.

field_add_more_js in modules/field/field.form.inc

Ajax callback in response to a new empty widget being added to the form.

field_default_validate in modules/field/field.default.inc

Generic field validation handler.

field_multiple_value_form in modules/field/field.form.inc

Special handling to create form elements for multiple values.

... See full list