public function FormsFormStorageTestCase::testImmutableFormLegacyProtection in Drupal 7
Verify that existing contrib code cannot overwrite immutable form state.
File
- modules/
simpletest/ tests/ form.test, line 1321 - Unit tests for the Drupal Form API.
Class
- FormsFormStorageTestCase
- Test the form storage on a multistep form.
Code
public function testImmutableFormLegacyProtection() {
$this
->drupalGet('form_test/form-storage', array(
'query' => array(
'cache' => 1,
'immutable' => 1,
),
));
$build_id_fields = $this
->xpath('//input[@name="form_build_id"]');
$this
->assertEqual(count($build_id_fields), 1, 'One form build id field on the page');
$build_id = (string) $build_id_fields[0]['value'];
// Try to poison the form cache.
$original = $this
->drupalGetAJAX('form_test/form-storage-legacy/' . $build_id);
$this
->assertEqual($original['form']['#build_id_old'], $build_id, 'Original build_id was recorded');
$this
->assertNotEqual($original['form']['#build_id'], $build_id, 'New build_id was generated');
// Assert that a watchdog message was logged by form_set_cache.
$status = (bool) db_query_range('SELECT 1 FROM {watchdog} WHERE message = :message', 0, 1, array(
':message' => 'Form build-id mismatch detected while attempting to store a form in the cache.',
));
$this
->assert($status, 'A watchdog message was logged by form_set_cache');
// Ensure that the form state was not poisoned by the preceeding call.
$original = $this
->drupalGetAJAX('form_test/form-storage-legacy/' . $build_id);
$this
->assertEqual($original['form']['#build_id_old'], $build_id, 'Original build_id was recorded');
$this
->assertNotEqual($original['form']['#build_id'], $build_id, 'New build_id was generated');
$this
->assert(empty($original['form']['#poisoned']), 'Original form structure was preserved');
$this
->assert(empty($original['form_state']['poisoned']), 'Original form state was preserved');
}