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<?php
namespace Drupal\system\Tests\Form;
use Drupal\Core\Render\Element;
use Drupal\simpletest\WebTestBase;
/**
* Tests form processing and alteration via form validation handlers.
*
* @group Form
*/
class ValidationTest extends WebTestBase {
/**
* Modules to enable.
*
* @var array
*/
public static $modules = ['form_test'];
/**
* Tests #element_validate and #validate.
*/
public function testValidate() {
$this->drupalGet('form-test/validate');
// Verify that #element_validate handlers can alter the form and submitted
// form values.
$edit = [
'name' => 'element_validate',
];
$this->drupalPostForm(NULL, $edit, 'Save');
$this->assertFieldByName('name', '#value changed by #element_validate', 'Form element #value was altered.');
$this->assertText('Name value: value changed by setValueForElement() in #element_validate', 'Form element value in $form_state was altered.');
// Verify that #validate handlers can alter the form and submitted
// form values.
$edit = [
'name' => 'validate',
];
$this->drupalPostForm(NULL, $edit, 'Save');
$this->assertFieldByName('name', '#value changed by #validate', 'Form element #value was altered.');
$this->assertText('Name value: value changed by setValueForElement() in #validate', 'Form element value in $form_state was altered.');
// Verify that #element_validate handlers can make form elements
// inaccessible, but values persist.
$edit = [
'name' => 'element_validate_access',
];
$this->drupalPostForm(NULL, $edit, 'Save');
$this->assertNoFieldByName('name', 'Form element was hidden.');
$this->assertText('Name value: element_validate_access', 'Value for inaccessible form element exists.');
// Verify that value for inaccessible form element persists.
$this->drupalPostForm(NULL, [], 'Save');
$this->assertNoFieldByName('name', 'Form element was hidden.');
$this->assertText('Name value: element_validate_access', 'Value for inaccessible form element exists.');
// Verify that #validate handlers don't run if the CSRF token is invalid.
$this->drupalLogin($this->drupalCreateUser());
$this->drupalGet('form-test/validate');
$edit = [
'name' => 'validate',
'form_token' => 'invalid token'
];
$this->drupalPostForm(NULL, $edit, 'Save');
$this->assertNoFieldByName('name', '#value changed by #validate', 'Form element #value was not altered.');
$this->assertNoText('Name value: value changed by setValueForElement() in #validate', 'Form element value in $form_state was not altered.');
$this->assertText('The form has become outdated. Copy any unsaved work in the form below');
}
/**
* Tests that a form with a disabled CSRF token can be validated.
*/
public function testDisabledToken() {
$this->drupalPostForm('form-test/validate-no-token', [], 'Save');
$this->assertText('The form_test_validate_no_token form has been submitted successfully.');
}
/**
* Tests partial form validation through #limit_validation_errors.
*/
public function testValidateLimitErrors() {
$edit = [
'test' => 'invalid',
'test_numeric_index[0]' => 'invalid',
'test_substring[foo]' => 'invalid',
];
$path = 'form-test/limit-validation-errors';
// Render the form, and verify that the buttons with limited server-side
// validation have the proper 'formnovalidate' attribute (to prevent
// client-side validation by the browser).
$this->drupalGet($path);
$expected = 'formnovalidate';
foreach (['partial', 'partial-numeric-index', 'substring'] as $type) {
$element = $this->xpath('//input[@id=:id and @formnovalidate=:expected]', [
':id' => 'edit-' . $type,
':expected' => $expected,
]);
$this->assertTrue(!empty($element), format_string('The @type button has the proper formnovalidate attribute.', ['@type' => $type]));
}
// The button with full server-side validation should not have the
// 'formnovalidate' attribute.
$element = $this->xpath('//input[@id=:id and not(@formnovalidate)]', [
':id' => 'edit-full',
]);
$this->assertTrue(!empty($element), 'The button with full server-side validation does not have the formnovalidate attribute.');
// Submit the form by pressing the 'Partial validate' button (uses
// #limit_validation_errors) and ensure that the title field is not
// validated, but the #element_validate handler for the 'test' field
// is triggered.
$this->drupalPostForm($path, $edit, t('Partial validate'));
$this->assertNoText(t('@name field is required.', ['@name' => 'Title']));
$this->assertText('Test element is invalid');
// Edge case of #limit_validation_errors containing numeric indexes: same
// thing with the 'Partial validate (numeric index)' button and the
// 'test_numeric_index' field.
$this->drupalPostForm($path, $edit, t('Partial validate (numeric index)'));
$this->assertNoText(t('@name field is required.', ['@name' => 'Title']));
$this->assertText('Test (numeric index) element is invalid');
// Ensure something like 'foobar' isn't considered "inside" 'foo'.
$this->drupalPostForm($path, $edit, t('Partial validate (substring)'));
$this->assertNoText(t('@name field is required.', ['@name' => 'Title']));
$this->assertText('Test (substring) foo element is invalid');
// Ensure not validated values are not available to submit handlers.
$this->drupalPostForm($path, ['title' => '', 'test' => 'valid'], t('Partial validate'));
$this->assertText('Only validated values appear in the form values.');
// Now test full form validation and ensure that the #element_validate
// handler is still triggered.
$this->drupalPostForm($path, $edit, t('Full validate'));
$this->assertText(t('@name field is required.', ['@name' => 'Title']));
$this->assertText('Test element is invalid');
}
/**
* Tests #pattern validation.
*/
public function testPatternValidation() {
$textfield_error = t('%name field is not in the right format.', ['%name' => 'One digit followed by lowercase letters']);
$tel_error = t('%name field is not in the right format.', ['%name' => 'Everything except numbers']);
$password_error = t('%name field is not in the right format.', ['%name' => 'Password']);
// Invalid textfield, valid tel.
$edit = [
'textfield' => 'invalid',
'tel' => 'valid',
];
$this->drupalPostForm('form-test/pattern', $edit, 'Submit');
$this->assertRaw($textfield_error);
$this->assertNoRaw($tel_error);
$this->assertNoRaw($password_error);
// Valid textfield, invalid tel, valid password.
$edit = [
'textfield' => '7seven',
'tel' => '818937',
'password' => '0100110',
];
$this->drupalPostForm('form-test/pattern', $edit, 'Submit');
$this->assertNoRaw($textfield_error);
$this->assertRaw($tel_error);
$this->assertNoRaw($password_error);
// Non required fields are not validated if empty.
$edit = [
'textfield' => '',
'tel' => '',
];
$this->drupalPostForm('form-test/pattern', $edit, 'Submit');
$this->assertNoRaw($textfield_error);
$this->assertNoRaw($tel_error);
$this->assertNoRaw($password_error);
// Invalid password.
$edit = [
'password' => $this->randomMachineName(),
];
$this->drupalPostForm('form-test/pattern', $edit, 'Submit');
$this->assertNoRaw($textfield_error);
$this->assertNoRaw($tel_error);
$this->assertRaw($password_error);
// The pattern attribute overrides #pattern and is not validated on the
// server side.
$edit = [
'textfield' => '',
'tel' => '',
'url' => 'http://www.example.com/',
];
$this->drupalPostForm('form-test/pattern', $edit, 'Submit');
$this->assertNoRaw(t('%name field is not in the right format.', ['%name' => 'Client side validation']));
}
/**
* Tests #required with custom validation errors.
*
* @see \Drupal\form_test\Form\FormTestValidateRequiredForm
*/
public function testCustomRequiredError() {
$form = \Drupal::formBuilder()->getForm('\Drupal\form_test\Form\FormTestValidateRequiredForm');
// Verify that a custom #required error can be set.
$edit = [];
$this->drupalPostForm('form-test/validate-required', $edit, 'Submit');
foreach (Element::children($form) as $key) {
if (isset($form[$key]['#required_error'])) {
$this->assertNoText(t('@name field is required.', ['@name' => $form[$key]['#title']]));
$this->assertText($form[$key]['#required_error']);
}
elseif (isset($form[$key]['#form_test_required_error'])) {
$this->assertNoText(t('@name field is required.', ['@name' => $form[$key]['#title']]));
$this->assertText($form[$key]['#form_test_required_error']);
}
}
$this->assertNoText(t('An illegal choice has been detected. Please contact the site administrator.'));
// Verify that no custom validation error appears with valid values.
$edit = [
'textfield' => $this->randomString(),
'checkboxes[foo]' => TRUE,
'select' => 'foo',
];
$this->drupalPostForm('form-test/validate-required', $edit, 'Submit');
foreach (Element::children($form) as $key) {
if (isset($form[$key]['#required_error'])) {
$this->assertNoText(t('@name field is required.', ['@name' => $form[$key]['#title']]));
$this->assertNoText($form[$key]['#required_error']);
}
elseif (isset($form[$key]['#form_test_required_error'])) {
$this->assertNoText(t('@name field is required.', ['@name' => $form[$key]['#title']]));
$this->assertNoText($form[$key]['#form_test_required_error']);
}
}
$this->assertNoText(t('An illegal choice has been detected. Please contact the site administrator.'));
}
}