function FormTest::testRequiredTextfieldNoTitle

Tests validation for required textfield element without title.

Submits a test form containing a textfield form element without title. The form is submitted twice, first without value for the required field and then with value. Each submission is checked for relevant error messages.

See also

\Drupal\form_test\Form\FormTestValidateRequiredNoTitleForm

File

core/modules/system/tests/src/Functional/Form/FormTest.php, line 352

Class

FormTest

Tests various form element validation mechanisms.

Namespace

Code

public function testRequiredTextfieldNoTitle() : void {
    // Attempt to submit the form with no required field set.
    $edit = [];
    $this->drupalGet('form-test/validate-required-no-title');
    $this->submitForm($edit, 'Submit');
    $this->assertSession()
        ->pageTextNotContains("The form_test_validate_required_form_no_title form was submitted successfully.");
    // Check the page for the error class on the textfield.
    $this->assertSession()
        ->elementExists('xpath', '//input[contains(@class, "error")]');
    // Check the page for the aria-invalid attribute on the textfield.
    $this->assertSession()
        ->elementExists('xpath', '//input[contains(@aria-invalid, "true")]');
    // Submit again with required fields set and verify that there are no
    // error messages.
    $edit = [
        'textfield' => $this->randomString(),
    ];
    $this->submitForm($edit, 'Submit');
    // Verify that no error input form element class is present.
    $this->assertSession()
        ->elementNotExists('xpath', '//input[contains(@class, "error")]');
    $this->assertSession()
        ->pageTextContains("The form_test_validate_required_form_no_title form was submitted successfully.");
}