public function RebuildTest::testPreserveFormActionAfterAJAX in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php \Drupal\Tests\system\FunctionalJavascript\Form\RebuildTest::testPreserveFormActionAfterAJAX()
2. 10 core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php \Drupal\Tests\system\FunctionalJavascript\Form\RebuildTest::testPreserveFormActionAfterAJAX()

Tests that a form's action is retained after an Ajax submission.

The 'action' attribute of a form should not change after an Ajax submission followed by a non-Ajax submission, which triggers a validation error.

File

core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php, line 54

Class

RebuildTest

Tests functionality of \Drupal\Core\Form\FormBuilderInterface::rebuildForm().

Namespace

Drupal\Tests\system\FunctionalJavascript\Form

Code

public function testPreserveFormActionAfterAJAX() {
  $page = $this
    ->getSession()
    ->getPage();

  // Create a multi-valued field for 'page' nodes to use for Ajax testing.
  $field_name = 'field_ajax_test';
  FieldStorageConfig::create([
    'field_name' => $field_name,
    'entity_type' => 'node',
    'type' => 'text',
    'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
  ])
    ->save();
  FieldConfig::create([
    'field_name' => $field_name,
    'entity_type' => 'node',
    'bundle' => 'page',
  ])
    ->save();

  // Also create a file field to test server side validation error.
  $field_file_name = 'field_file_test';
  FieldStorageConfig::create([
    'field_name' => $field_file_name,
    'entity_type' => 'node',
    'type' => 'file',
    'cardinality' => 1,
  ])
    ->save();
  FieldConfig::create([
    'field_name' => $field_file_name,
    'entity_type' => 'node',
    'bundle' => 'page',
    'label' => 'Test file',
    'required' => TRUE,
  ])
    ->save();
  \Drupal::service('entity_display.repository')
    ->getFormDisplay('node', 'page', 'default')
    ->setComponent($field_name, [
    'type' => 'text_textfield',
  ])
    ->setComponent($field_file_name, [
    'type' => 'file_generic',
  ])
    ->save();

  // Log in a user who can create 'page' nodes.
  $this->webUser = $this
    ->drupalCreateUser([
    'create page content',
  ]);
  $this
    ->drupalLogin($this->webUser);

  // Get the form for adding a 'page' node. Submit an "add another item" Ajax
  // submission and verify it worked by ensuring the updated page has two text
  // field items in the field for which we just added an item.
  $this
    ->drupalGet('node/add/page');
  $page
    ->find('css', '[value="Add another item"]')
    ->click();
  $this
    ->assertSession()
    ->assertWaitOnAjaxRequest();
  $this
    ->assertCount(2, $this
    ->xpath('//div[contains(@class, "field--name-field-ajax-test")]//input[@type="text"]'), 'AJAX submission succeeded.');

  // Submit the form with the non-Ajax "Save" button, leaving the file field
  // blank to trigger a validation error, and ensure that a validation error
  // occurred, because this test is for testing what happens when a form is
  // re-rendered without being re-built, which is what happens when there's
  // a server side validation error.
  $edit = [
    'title[0][value]' => $this
      ->randomString(),
  ];
  $this
    ->drupalPostForm(NULL, $edit, 'Save');
  $this
    ->assertSession()
    ->pageTextContains('Test file field is required.', 'Non-AJAX submission correctly triggered a validation error.');

  // Ensure that the form contains two items in the multi-valued field, so we
  // know we're testing a form that was correctly retrieved from cache.
  $this
    ->assertCount(2, $this
    ->xpath('//form[contains(@id, "node-page-form")]//div[contains(@class, "js-form-item-field-ajax-test")]//input[@type="text"]'), 'Form retained its state from cache.');

  // Ensure that the form's action is correct.
  $forms = $this
    ->xpath('//form[contains(@class, "node-page-form")]');
  $this
    ->assertCount(1, $forms);

  // Strip query params off the action before asserting.
  $url = parse_url($forms[0]
    ->getAttribute('action'))['path'];
  $this
    ->assertEquals(Url::fromRoute('node.add', [
    'node_type' => 'page',
  ])
    ->toString(), $url);
}