// $Id$

/**
 * @file
 * Tests for jquery.once.js.
 */

(function($) {

Drupal.tests.once = {
  getInfo: function() {
    return {
      'name': 'jQuery once plugin',
      'description': 'Tests the jQuery once plugin to make sure it does indeed run on elements only once.',
      'group': 'System'
    };
  },
  setup: function() {
    $(Drupal.tests.iframe).html('<div id="1"/><div id="2"/>');
  },
  test: function() {
    // Test once, since this is the first time we should get both divs.
    var $resultOne = $('div', Drupal.tests.iframe).once('test');
    ok($resultOne.size() == 2, Drupal.t('Both divs were returned initially.'));
    $resultOne.each(function() {
      ok($(this).hasClass('test-processed'), Drupal.t('Div has the "test-processed" class.'));
    });

    // Now test again, and we should get neither div.
    var $resultTwo = $('div', Drupal.tests.iframe).once('test');
    ok($resultTwo.size() == 0, Drupal.t('Neither div was returned the second time.'));

    // Now add a div to the page and try again, we should only get the new div.
    $(Drupal.tests.iframe).append('<div id="3"/>');
    var $resultThree = $('div', Drupal.tests.iframe).once('test');
    ok($resultThree.size() == 1, Drupal.t('Only the unprocessed div was returned.'));
    $resultThree.each(function() {
      // We should only have gotten div 3.
      ok($(this).is('#3'), Drupal.t('Only the third div was returned.'));
      ok($(this).hasClass('test-processed'), Drupal.t('Div has the "test-processed" class.'));
    });

    // Now remove the once behavior, and we should get all three divs returned.
    var $resultFour = $('div', Drupal.tests.iframe).removeOnce('test');
    ok($resultFour.size() == 3, Drupal.t('All divs were returned after removing the once behavior.'));
    $resultFour.each(function() {
      ok(!$(this).hasClass('test-processed'), Drupal.t('Div does not have the "test-processed" class.'));
    });

    // Now try doing something once again, all three divs should be returned.
    var $resultFive = $('div', Drupal.tests.iframe).once('test');
    ok($resultFive.size() == 3, Drupal.t('All divs were returned when we attempt to get the divs once again.'));
    $resultFive.each(function() {
      ok($(this).hasClass('test-processed'), Drupal.t('Div has the "test-processed" class again.'));
    });
  }
};

})(jQuery);