function DependentDropdownTest::testDependentDropdown

Test the dependent dropdown form without AJAX.

File

modules/ajax_example/tests/src/Functional/DependentDropdownTest.php, line 33

Class

DependentDropdownTest

Functional test of non-AJAX dependent dropdown example.

Namespace

Code

public function testDependentDropdown() {
  // Get the Mink stuff.
  $session = $this->getSession();
  $assert = $this->assertSession();
  $page = $session->getPage();
  // Get a URL object for the form, specifying no JS.
  $dropdown_url = Url::fromRoute('ajax_example.dependent_dropdown', [
    'nojs' => 'nojs',
  ]);
  // 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 form submissions.
  $families = [
    'String' => [
      'Violin',
      'Viola',
      'Cello',
      'Double Bass',
    ],
    'Woodwind' => [
      'Flute',
      'Clarinet',
      'Oboe',
      'Bassoon',
    ],
    'Brass' => [
      'Trumpet',
      'Trombone',
      'French Horn',
      'Euphonium',
    ],
    'Percussion' => [
      'Bass Drum',
      'Timpani',
      'Snare Drum',
      'Tambourine',
    ],
  ];
  foreach ($families as $family => $instruments) {
    // Post the form for the instrument family.
    $this->drupalGet($dropdown_url);
    $this->submitForm([
      'instrument_family_dropdown' => $family,
    ], 'Choose');
    // Get the instrument dropdown elements.
    $instrument_options = $page->findAll('css', '#edit-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'), $instruments);
    }
    // Post each instrument. We have to 'choose' again in order to unlock the
    // instrument dropdown.
    foreach ($instruments as $instrument) {
      $this->drupalGet($dropdown_url);
      $this->submitForm([
        'instrument_family_dropdown' => $family,
      ], 'Choose');
      $this->submitForm([
        'instrument_dropdown' => $instrument,
      ], 'Submit');
      $assert->pageTextContains("Your values have been submitted. Instrument family: {$family}, Instrument: {$instrument}");
    }
  }
}