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.
form_test_validate_required_form_no_title()
function testRequiredTextfieldNoTitle() {
$form = $form_state = array();
$form = form_test_validate_required_form_no_title($form, $form_state);
// Attempt to submit the form with no required field set.
$edit = array();
$this
->drupalPost('form-test/validate-required-no-title', $edit, 'Submit');
$this
->assertNoRaw("The form_test_validate_required_form_no_title form was submitted successfully.", 'Validation form submitted successfully.');
// Check the page for the error class on the textfield.
$this
->assertFieldByXPath('//input[contains(@class, "error")]', FALSE, 'Error input form element class found.');
// Submit again with required fields set and verify that there are no
// error messages.
$edit = array(
'textfield' => $this
->randomString(),
);
$this
->drupalPost(NULL, $edit, 'Submit');
$this
->assertNoFieldByXpath('//input[contains(@class, "error")]', FALSE, 'No error input form element class found.');
$this
->assertRaw("The form_test_validate_required_form_no_title form was submitted successfully.", 'Validation form submitted successfully.');
}