public function StorageTest::testImmutableForm in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/modules/system/src/Tests/Form/StorageTest.php \Drupal\system\Tests\Form\StorageTest::testImmutableForm()

Verifies that form build-id is regenerated when loading an immutable form from the cache.

File

core/modules/system/src/Tests/Form/StorageTest.php, line 139

Contains \Drupal\system\Tests\Form\StorageTest.

Class

StorageTest

Tests a multistep form using form storage and makes sure validation and caching works right.

Namespace

Drupal\system\Tests\Form

Code

public function testImmutableForm() {

  // Request the form with 'cache' query parameter to enable form caching.
  $this
    ->drupalGet('form_test/form-storage', [
    'query' => [
      'cache' => 1,
      'immutable' => 1,
    ],
  ]);
  $buildIdFields = $this
    ->xpath('//input[@name="form_build_id"]');
  $this
    ->assertEqual(count($buildIdFields), 1, 'One form build id field on the page');
  $buildId = (string) $buildIdFields[0]['value'];

  // Trigger validation error by submitting an empty title.
  $edit = [
    'title' => '',
  ];
  $this
    ->drupalPostForm(NULL, $edit, 'Continue submit');

  // Verify that the build-id did change.
  $this
    ->assertNoFieldByName('form_build_id', $buildId, 'Build id changes when form validation fails');

  // Retrieve the new build-id.
  $buildIdFields = $this
    ->xpath('//input[@name="form_build_id"]');
  $this
    ->assertEqual(count($buildIdFields), 1, 'One form build id field on the page');
  $buildId = (string) $buildIdFields[0]['value'];

  // Trigger validation error by again submitting an empty title.
  $edit = [
    'title' => '',
  ];
  $this
    ->drupalPostForm(NULL, $edit, 'Continue submit');

  // Verify that the build-id does not change the second time.
  $this
    ->assertFieldByName('form_build_id', $buildId, 'Build id remains the same when form validation fails subsequently');
}