public function testCanRenderTextDelimiters()
 {
     $element = new MonthSelect('foo');
     $element->setShouldCreateEmptyOption(true);
     $element->setShouldRenderDelimiters(true);
     $markup = $this->helper->__invoke($element, \IntlDateFormatter::LONG, 'pt_BR');
     // pattern === "MMMM 'de' y"
     $this->assertStringMatchesFormat('%a de %a', $markup);
 }