public function DependentDropdownTest::testDependentDropdown in Examples for Developers 8

Same name in this branch

1. 8 ajax_example/tests/src/Functional/DependentDropdownTest.php \Drupal\Tests\ajax_example\Functional\DependentDropdownTest::testDependentDropdown()
2. 8 ajax_example/tests/src/FunctionalJavascript/DependentDropdownTest.php \Drupal\Tests\ajax_example\FunctionalJavascript\DependentDropdownTest::testDependentDropdown()

Same name and namespace in other branches

1. 3.x modules/ajax_example/tests/src/FunctionalJavascript/DependentDropdownTest.php \Drupal\Tests\ajax_example\FunctionalJavascript\DependentDropdownTest::testDependentDropdown()

Test the dependent dropdown form with AJAX.

File

ajax_example/tests/src/FunctionalJavascript/DependentDropdownTest.php, line 30

Class

DependentDropdownTest

Functional test of dependent dropdown example.

Namespace

Drupal\Tests\ajax_example\FunctionalJavascript

Code

public function testDependentDropdown() {

  // Get the Mink stuff.
  $assert = $this
    ->assertSession();
  $page = $this
    ->getSession()
    ->getPage();

  // Get a URL object for the form, specifying AJAX.
  $dropdown_url = Url::fromRoute('ajax_example.dependent_dropdown', [
    'nojs' => 'ajax',
  ]);

  // Get the form.
  $this
    ->drupalGet($dropdown_url);

  // Check for the initial state.
  $assert
    ->fieldDisabled('instrument_dropdown');
  $assert
    ->fieldValueEquals('instrument_dropdown', 'none');
  $submit_button = $page
    ->findButton('edit-submit');
  $this
    ->assertTrue($submit_button
    ->hasAttribute('disabled'));

  // Run through the matrix of families.
  $families = [
    'String' => [
      'Violin',
      'Viola',
      'Cello',
      'Double Bass',
    ],
    'Woodwind' => [
      'Flute',
      'Clarinet',
      'Oboe',
      'Bassoon',
    ],
    'Brass' => [
      'Trumpet',
      'Trombone',
      'French Horn',
      'Euphonium',
    ],
    'Percussion' => [
      'Bass Drum',
      'Timpani',
      'Snare Drum',
      'Tambourine',
    ],
  ];
  foreach ($families as $family => $instruments) {

    // Select a family.
    $family_dropdown = $assert
      ->fieldExists('instrument_family_dropdown');
    $family_dropdown
      ->setValue($family);
    $assert
      ->assertWaitOnAjaxRequest();

    // Get the instrument dropdown elements.
    $instrument_options = $page
      ->findAll('css', 'select[name="instrument_dropdown"] option');
    $this
      ->assertCount(count($instruments), $instrument_options);

    // Make sure all the instruments are in the select dropdown.
    foreach ($instrument_options as $instrument) {
      $this
        ->assertContains($instrument
        ->getAttribute('value'), $instruments);
    }

    // Post each instrument.
    foreach ($instruments as $instrument) {
      $this
        ->drupalGet($dropdown_url);
      $family_dropdown
        ->setValue($family);
      $assert
        ->assertWaitOnAjaxRequest();
      $this
        ->drupalPostForm(NULL, [
        'instrument_dropdown' => $instrument,
      ], 'Submit');
      $assert
        ->pageTextContains("Your values have been submitted. Instrument family: {$family}, Instrument: {$instrument}");
    }
  }
}