Tests - Helpers - Form helper

• form_open
• form_open_multipart
• form_hidden
• form_input
• form_password
• form_upload
• form_textarea
• form_multiselect
• form_dropdown
• form_checkbox
• form_radio
• form_submit
• form_reset
• form_button
• form_label
• form_datalist
• form_fieldset
• form_fieldset_close
• form_close
• set_value
• set_select
• set_checkbox
• set_radio
• validation_errors
• validation_list_errors
• validation_show_error
• parse_form_attributes