* Creates a date test field.
*/
protected function createField() {
- $field_name = Unicode::strtolower($this->randomMachineName());
- $field_label = Unicode::ucfirst(Unicode::strtolower($this->randomMachineName()));
+ $field_name = mb_strtolower($this->randomMachineName());
+ $field_label = Unicode::ucfirst(mb_strtolower($this->randomMachineName()));
$type = $this->getTestFieldType();
$widget_type = $formatter_type = $type . '_default';