/**
* Tests whether the triggering element is properly identified.
*
* @param string $element_value
* The input element "#value" value.
* @param string $input_value
* The corresponding submitted input value.
*
* @covers ::buildForm
*
* @dataProvider providerTestBuildFormWithTriggeringElement
*/
public function testBuildFormWithTriggeringElement($element_value, $input_value)
{
$form_id = 'test_form_id';
$expected_form = $form_id();
$expected_form['actions']['other_submit'] = ['#type' => 'submit', '#value' => $element_value];
$form_arg = $this->getMockForm($form_id, $expected_form, 2);
$form_state = new FormState();
$form_state->setProcessInput();
$form_state->setUserInput(['form_id' => $form_id, 'op' => $input_value]);
$this->request->setMethod('POST');
$this->formBuilder->buildForm($form_arg, $form_state);
$this->assertEquals($expected_form['actions']['other_submit']['#value'], $form_state->getTriggeringElement()['#value']);
}
