Bootstrap/js/tests/unit/dropdown.js

$(function () {
  'use strict';

  module('dropdowns plugin')

  test('should be defined on jquery object', function () {
    ok($(document.body).dropdown, 'dropdown method is defined')
  })

  module('dropdowns', {
    setup: function () {
      // Run all tests in noConflict mode -- it's the only way to ensure that the plugin works in noConflict mode
      $.fn.bootstrapDropdown = $.fn.dropdown.noConflict()
    },
    teardown: function () {
      $.fn.dropdown = $.fn.bootstrapDropdown
      delete $.fn.bootstrapDropdown
    }
  })

  test('should provide no conflict', function () {
    strictEqual($.fn.dropdown, undefined, 'dropdown was set back to undefined (org value)')
  })

  test('should return jquery collection containing the element', function () {
    var $el = $('<div/>')
    var $dropdown = $el.bootstrapDropdown()
    ok($dropdown instanceof $, 'returns jquery collection')
    strictEqual($dropdown[0], $el[0], 'collection contains element')
  })

  test('should not open dropdown if target is disabled via attribute', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown().click()

    ok(!$dropdown.parent('.dropdown').hasClass('open'), '"open" class added on click')
  })

  test('should not open dropdown if target is disabled via class', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown().click()

    ok(!$dropdown.parent('.dropdown').hasClass('open'), '"open" class added on click')
  })

  test('should add class open to menu if clicked', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown().click()

    ok($dropdown.parent('.dropdown').hasClass('open'), '"open" class added on click')
  })

  test('should test if element has a # before assuming it\'s a selector', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<a href="/foo/" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown().click()

    ok($dropdown.parent('.dropdown').hasClass('open'), '"open" class added on click')
  })


  test('should remove "open" class if body is clicked', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML)
      .appendTo('#qunit-fixture')
      .find('[data-toggle="dropdown"]')
      .bootstrapDropdown()
      .click()

    ok($dropdown.parent('.dropdown').hasClass('open'), '"open" class added on click')
    $(document.body).click()
    ok(!$dropdown.parent('.dropdown').hasClass('open'), '"open" class removed')
  })

  test('should remove "open" class if body is clicked, with multiple dropdowns', function () {
    var dropdownHTML = '<ul class="nav">' +
        '<li><a href="#menu1">Menu 1</a></li>' +
        '<li class="dropdown" id="testmenu">' +
        '<a class="dropdown-toggle" data-toggle="dropdown" href="#testmenu">Test menu <span class="caret"/></a>' +
        '<ul class="dropdown-menu" role="menu">' +
        '<li><a href="#sub1">Submenu 1</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>' +
        '<div class="btn-group">' +
        '<button class="btn">Actions</button>' +
        '<button class="btn dropdown-toggle" data-toggle="dropdown"><span class="caret"/></button>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Action 1</a></li>' +
        '</ul>' +
        '</div>'
    var $dropdowns = $(dropdownHTML).appendTo('#qunit-fixture').find('[data-toggle="dropdown"]')
    var $first = $dropdowns.first()
    var $last = $dropdowns.last()

    strictEqual($dropdowns.length, 2, 'two dropdowns')

    $first.click()
    strictEqual($first.parents('.open').length, 1, '"open" class added on click')
    strictEqual($('#qunit-fixture .open').length, 1, 'only one dropdown is open')
    $(document.body).click()
    strictEqual($('#qunit-fixture .open').length, 0, '"open" class removed')

    $last.click()
    strictEqual($last.parent('.open').length, 1, '"open" class added on click')
    strictEqual($('#qunit-fixture .open').length, 1, 'only one dropdown is open')
    $(document.body).click()
    strictEqual($('#qunit-fixture .open').length, 0, '"open" class removed')
  })

  test('should fire show and hide event', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML)
      .appendTo('#qunit-fixture')
      .find('[data-toggle="dropdown"]')
      .bootstrapDropdown()

    stop()

    $dropdown
      .parent('.dropdown')
      .on('show.bs.dropdown', function () {
        ok(true, 'show was fired')
      })
      .on('hide.bs.dropdown', function () {
        ok(true, 'hide was fired')
        start()
      })

    $dropdown.click()
    $(document.body).click()
  })


  test('should fire shown and hidden event', function () {
    var dropdownHTML = '<ul class="tabs">' +
        '<li class="dropdown">' +
        '<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
        '<ul class="dropdown-menu">' +
        '<li><a href="#">Secondary link</a></li>' +
        '<li><a href="#">Something else here</a></li>' +
        '<li class="divider"/>' +
        '<li><a href="#">Another link</a></li>' +
        '</ul>' +
        '</li>' +
        '</ul>'
    var $dropdown = $(dropdownHTML)
      .appendTo('#qunit-fixture')
      .find('[data-toggle="dropdown"]')
      .bootstrapDropdown()

    stop()

    $dropdown
      .parent('.dropdown')
      .on('shown.bs.dropdown', function () {
        ok(true, 'shown was fired')
      })
      .on('hidden.bs.dropdown', function () {
        ok(true, 'hidden was fired')
        start()
      })

    $dropdown.click()
    $(document.body).click()
  })

})