select2/tests/integration/jquery-calls.js

test('multiple elements with arguments works', function (assert) {
  var $ = require('jquery');
  require('jquery.select2');

  var $first = $(
    '<select>' +
      '<option>1</option>' +
      '<option>2</option>' +
    '</select>'
  );
  var $second = $first.clone();

  var $both = $first.add($second);
  $both.select2();

  $both.select2('val', '2');

  assert.equal(
    $first.val(),
    '2',
    'The call should change the value on the first element'
  );
  assert.equal(
    $second.val(),
    '2',
    'The call should also change the value on the second element'
  );
});

test('initializes correctly when jQuery $.data contains cyclic reference object', function (assert) {
  var $ = require('jquery');
  require('jquery.select2');

  var $select = $(
    '<select>' +
      '<option>One</option>' +
      '<option>Two</option>' +
      '<option value="3" selected>Three</option>' +
    '</select>'
  );

  // Add a circular reference object using jQuery.
  var recursiveObject = {};

  recursiveObject['same'] =  recursiveObject;

  $select.data('same', recursiveObject);

  $select.select2();

  assert.equal(
    $select.val(),
    '3',
    'The option value should be pulled correctly'
  );
});