function AjaxFormPageCacheTest::testAjaxElementValidation

Tests that updating the text field trigger an AJAX request/response.

See also

\Drupal\system\Tests\Ajax\ElementValidationTest::testAjaxElementValidation()

File

core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php, line 119

Class

AjaxFormPageCacheTest

Performs tests on AJAX forms in cached pages.

Namespace

Code

public function testAjaxElementValidation() : void {
    $this->drupalGet('ajax_validation_test');
    // Changing the value of the textfield will trigger an AJAX
    // request/response.
    $field = $this->getSession()
        ->getPage()
        ->findField('driver_text');
    $field->setValue('some dumb text');
    $field->blur();
    // When the AJAX command updates the DOM a <ul> unsorted list
    // "message__list" structure will appear on the page echoing back the
    // "some dumb text" message.
    $placeholder = $this->assertSession()
        ->waitForElement('css', "[aria-label='Status message'] > ul > li > em:contains('some dumb text')");
    $this->assertNotNull($placeholder, 'Message structure containing input data located.');
}