1
0
Fork 0
mirror of https://github.com/twbs/bootstrap.git synced 2022-11-09 12:25:43 -05:00
twbs--bootstrap/js/tests/unit/dropdown.js
2019-03-11 17:01:28 +02:00

1431 lines
50 KiB
JavaScript

$(function () {
'use strict'
var Dropdown = typeof window.bootstrap === 'undefined' ? window.Dropdown : window.bootstrap.Dropdown
QUnit.module('dropdowns plugin')
QUnit.test('should be defined on jquery object', function (assert) {
assert.expect(1)
assert.ok($(document.body).dropdown, 'dropdown method is defined')
})
QUnit.module('dropdowns', {
beforeEach: 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()
},
afterEach: function () {
$.fn.dropdown = $.fn.bootstrapDropdown
delete $.fn.bootstrapDropdown
$('#qunit-fixture').html('')
}
})
QUnit.test('should provide no conflict', function (assert) {
assert.expect(1)
assert.strictEqual(typeof $.fn.dropdown, 'undefined', 'dropdown was set back to undefined (org value)')
})
QUnit.test('should throw explicit error on undefined method', function (assert) {
assert.expect(1)
var $el = $('<div/>')
$el.appendTo('#qunit-fixture')
$el.bootstrapDropdown()
try {
$el.bootstrapDropdown('noMethod')
} catch (error) {
assert.strictEqual(error.message, 'No method named "noMethod"')
}
})
QUnit.test('should return jquery collection containing the element', function (assert) {
assert.expect(2)
var $el = $('<div/>')
$el.appendTo('#qunit-fixture')
var $dropdown = $el.bootstrapDropdown()
assert.ok($dropdown instanceof $, 'returns jquery collection')
assert.strictEqual($dropdown[0], $el[0], 'collection contains element')
})
QUnit.test('should not open dropdown if target is disabled via attribute', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.on('click', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
done()
})
$dropdown.trigger($.Event('click'))
})
QUnit.test('should not add class position-static to dropdown if boundary not set', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('position-static'), '"position-static" class not added')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should add class position-static to dropdown if boundary not scrollParent', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown" data-boundary="viewport">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML).find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('position-static'), '"position-static" class added')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should set aria-expanded="true" on target when dropdown menu is shown', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown" aria-expanded="false">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdownParent = $dropdown.parent('.dropdown')[0]
dropdownParent.addEventListener('shown.bs.dropdown', function () {
assert.strictEqual($dropdown.attr('aria-expanded'), 'true', 'aria-expanded is set to string "true" on click')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should set aria-expanded="false" on target when dropdown menu is hidden', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" aria-expanded="false" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdownParent = $dropdown.parent('.dropdown')[0]
dropdownParent.addEventListener('hidden.bs.dropdown', function () {
assert.strictEqual($dropdown.attr('aria-expanded'), 'false', 'aria-expanded is set to string "false" on hide')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
document.body.click()
})
QUnit.test('should not open dropdown if target is disabled via class', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.on('click', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
done()
})
$dropdown.trigger($.Event('click'))
})
QUnit.test('should add class show to menu if clicked', function (assert) {
assert.expect(1)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Secondary link</a>' +
' <a class="dropdown-item" href="#">Something else here</a>' +
' <div class="divider"/>' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), '"show" class added on click')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should remove "show" class if body is clicked', function (assert) {
assert.expect(2)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), '"show" class added on click')
$(document.body).trigger('click')
}).on('hidden.bs.dropdown', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), '"show" class removed')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should remove "show" class if tabbing outside of menu', function (assert) {
assert.expect(2)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="dropdown-divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), '"show" class added on click')
var keyup9 = new Event('keyup')
keyup9.which = 9 // Tab
document.dispatchEvent(keyup9)
})
.on('hidden.bs.dropdown', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), '"show" class removed')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should remove "show" class if body is clicked, with multiple dropdowns', function (assert) {
assert.expect(7)
var done = assert.async()
var dropdownHTML = '<div class="nav">' +
'<div class="dropdown" id="testmenu">' +
'<a class="dropdown-toggle" data-toggle="dropdown" href="#testmenu">Test menu <span class="caret"/></a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#sub1">Submenu 1</a>' +
'</div>' +
'</div>' +
'</div>' +
'<div class="btn-group">' +
'<button class="btn">Actions</button>' +
'<button class="btn dropdown-toggle" data-toggle="dropdown"></button>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Action 1</a>' +
'</div>' +
'</div>'
var $dropdowns = $(dropdownHTML).appendTo('#qunit-fixture').find('[data-toggle="dropdown"]')
var $first = $dropdowns.first()
var $last = $dropdowns.last()
assert.strictEqual($dropdowns.length, 2, 'two dropdowns')
$first.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.strictEqual($first.parents('.show').length, 1, '"show" class added on click')
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 1, 'only one dropdown is shown')
$(document.body).trigger('click')
}).on('hidden.bs.dropdown', function () {
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 0, '"show" class removed')
$last[0].dispatchEvent(new Event('click'))
})
$last.parent('.btn-group')
.on('shown.bs.dropdown', function () {
assert.strictEqual($last.parent('.show').length, 1, '"show" class added on click')
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 1, 'only one dropdown is shown')
$(document.body).trigger('click')
}).on('hidden.bs.dropdown', function () {
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 0, '"show" class removed')
done()
})
$first[0].dispatchEvent(new Event('click'))
})
QUnit.test('should remove "show" class if body if tabbing outside of menu, with multiple dropdowns', function (assert) {
assert.expect(7)
var done = assert.async()
var dropdownHTML = '<div class="nav">' +
'<div class="dropdown" id="testmenu">' +
'<a class="dropdown-toggle" data-toggle="dropdown" href="#testmenu">Test menu <span class="caret"/></a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#sub1">Submenu 1</a>' +
'</div>' +
'</div>' +
'</div>' +
'<div class="btn-group">' +
'<button class="btn">Actions</button>' +
'<button class="btn dropdown-toggle" data-toggle="dropdown"><span class="caret"/></button>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Action 1</a>' +
'</div>' +
'</div>'
var $dropdowns = $(dropdownHTML).appendTo('#qunit-fixture').find('[data-toggle="dropdown"]')
var $first = $dropdowns.first()
var $last = $dropdowns.last()
assert.strictEqual($dropdowns.length, 2, 'two dropdowns')
$first.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.strictEqual($first.parents('.show').length, 1, '"show" class added on click')
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 1, 'only one dropdown is shown')
var keyup = new Event('keyup')
keyup.which = 9 // Tab
document.dispatchEvent(keyup)
}).on('hidden.bs.dropdown', function () {
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 0, '"show" class removed')
$last[0].dispatchEvent(new Event('click'))
})
$last.parent('.btn-group')
.on('shown.bs.dropdown', function () {
assert.strictEqual($last.parent('.show').length, 1, '"show" class added on click')
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 1, 'only one dropdown is shown')
var keyup = new Event('keyup')
keyup.which = 9 // Tab
document.dispatchEvent(keyup)
}).on('hidden.bs.dropdown', function () {
assert.strictEqual($('#qunit-fixture .dropdown-menu.show').length, 0, '"show" class removed')
done()
})
$first[0].dispatchEvent(new Event('click'))
})
QUnit.test('should fire show and hide event', function (assert) {
assert.expect(2)
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function () {
assert.ok(true, 'show was fired')
})
.on('hide.bs.dropdown', function () {
assert.ok(true, 'hide was fired')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
document.body.click()
})
QUnit.test('should fire shown and hidden event', function (assert) {
assert.expect(2)
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
})
.on('hidden.bs.dropdown', function () {
assert.ok(true, 'hidden was fired')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
document.body.click()
})
QUnit.test('should fire shown and hidden event with a relatedTarget', function (assert) {
assert.expect(2)
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var done = assert.async()
$dropdown.parent('.dropdown')
.on('hidden.bs.dropdown', function (e) {
assert.strictEqual(e.relatedTarget, $dropdown[0])
done()
})
.on('shown.bs.dropdown', function (e) {
assert.strictEqual(e.relatedTarget, $dropdown[0])
$(document.body).trigger('click')
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should fire hide and hidden event with a clickEvent', function (assert) {
assert.expect(3)
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown.parent('.dropdown')
.on('hide.bs.dropdown', function (e) {
assert.ok(e.clickEvent)
})
.on('hidden.bs.dropdown', function (e) {
assert.ok(e.clickEvent)
})
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
$(document.body).trigger('click')
})
$dropdown[0].click()
})
QUnit.test('should fire hide and hidden event without a clickEvent if event type is not click', function (assert) {
assert.expect(3)
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown.parent('.dropdown')
.on('hide.bs.dropdown', function (e) {
assert.notOk(e.clickEvent)
})
.on('hidden.bs.dropdown', function (e) {
assert.notOk(e.clickEvent)
})
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
var keyDown = new Event('keydown')
keyDown.which = 27
$dropdown[0].dispatchEvent(keyDown)
})
$dropdown[0].click()
})
QUnit.test('should ignore keyboard events within <input>s and <textarea>s', function (assert) {
assert.expect(3)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'<input type="text" id="input">' +
'<textarea id="textarea"/>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $input = $('#input')
var $textarea = $('#textarea')
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
$input.trigger('focus').trigger($.Event('keydown', {
which: 38
}))
assert.ok($(document.activeElement).is($input), 'input still focused')
$textarea.trigger('focus').trigger($.Event('keydown', {
which: 38
}))
assert.ok($(document.activeElement).is($textarea), 'textarea still focused')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should skip disabled element when using keyboard navigation', function (assert) {
assert.expect(3)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item disabled" href="#">Disabled link</a>' +
'<button class="dropdown-item" type="button" disabled>Disabled button</button>' +
'<a id="item1" class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
$dropdown.trigger($.Event('keydown', {
which: 40
}))
$dropdown.trigger($.Event('keydown', {
which: 40
}))
assert.ok(!$(document.activeElement).is('.disabled'), '.disabled is not focused')
assert.ok(!$(document.activeElement).is(':disabled'), ':disabled is not focused')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should focus next/previous element when using keyboard navigation', function (assert) {
assert.expect(4)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a id="item1" class="dropdown-item" href="#">A link</a>' +
'<a id="item2" class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
var keydown40 = new Event('keydown')
keydown40.which = 40
$dropdown[0].dispatchEvent(keydown40)
assert.ok($(document.activeElement).is($('#item1')), 'item1 is focused')
keydown40 = new Event('keydown')
keydown40.which = 40
document.activeElement.dispatchEvent(keydown40)
assert.ok($(document.activeElement).is($('#item2')), 'item2 is focused')
var keydown38 = new Event('keydown')
keydown38.which = 38
document.activeElement.dispatchEvent(keydown38)
assert.ok($(document.activeElement).is($('#item1')), 'item1 is focused')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should not close the dropdown if the user clicks on a text field', function (assert) {
assert.expect(2)
var done = assert.async()
var dropdownHTML = '<div class="dropdown">' +
'<button type="button" data-toggle="dropdown">Dropdown</button>' +
'<div class="dropdown-menu">' +
'<input id="textField" type="text" />' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $textfield = $('#textField')
$textfield.on('click', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
$textfield[0].dispatchEvent(new Event('click'))
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should not close the dropdown if the user clicks on a textarea', function (assert) {
assert.expect(2)
var done = assert.async()
var dropdownHTML = '<div class="dropdown">' +
'<button type="button" data-toggle="dropdown">Dropdown</button>' +
'<div class="dropdown-menu">' +
'<textarea id="textArea"></textarea>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $textarea = $('#textArea')
$textarea.on('click', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
$textarea[0].dispatchEvent(new Event('click'))
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('Dropdown should not use Popper.js in navbar', function (assert) {
assert.expect(1)
var done = assert.async()
var html = '<nav class="navbar navbar-expand-md navbar-light bg-light">' +
'<div class="dropdown">' +
' <a class="nav-link dropdown-toggle" href="#" id="dropdown" data-toggle="dropdown" aria-expanded="false">Dropdown</a>' +
' <div class="dropdown-menu" aria-labelledby="dropdown">' +
' <a class="dropdown-item" href="#">Action</a>' +
' <a class="dropdown-item" href="#">Another action</a>' +
' <a class="dropdown-item" href="#">Something else here</a>' +
' </div>' +
'</div>' +
'</nav>'
$(html).appendTo('#qunit-fixture')
var $triggerDropdown = $('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $dropdownMenu = $triggerDropdown.next()
$triggerDropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
assert.ok(typeof $dropdownMenu.attr('style') === 'undefined', 'No inline style applied by Popper.js')
done()
})
$triggerDropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should ignore keyboard events for <input>s and <textarea>s within dropdown-menu, except for escape key', function (assert) {
assert.expect(7)
var done = assert.async()
var dropdownHTML = '<div class="tabs">' +
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'<input type="text" id="input">' +
'<textarea id="textarea"/>' +
'</div>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $input = $('#input')
var $textarea = $('#textarea')
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
// Space key
$input.trigger('focus').trigger($.Event('keydown', {
which: 32
}))
assert.ok($(document.activeElement)[0] === $input[0], 'input still focused')
$textarea.trigger('focus').trigger($.Event('keydown', {
which: 32
}))
assert.ok($(document.activeElement)[0] === $textarea[0], 'textarea still focused')
// Key up
$input.trigger('focus').trigger($.Event('keydown', {
which: 38
}))
assert.ok($(document.activeElement)[0] === $input[0], 'input still focused')
$textarea.trigger('focus').trigger($.Event('keydown', {
which: 38
}))
assert.ok($(document.activeElement)[0] === $textarea[0], 'textarea still focused')
// Key down
$input.trigger('focus').trigger($.Event('keydown', {
which: 40
}))
assert.ok($(document.activeElement)[0] === $input[0], 'input still focused')
$textarea.trigger('focus').trigger($.Event('keydown', {
which: 40
}))
assert.ok($(document.activeElement)[0] === $textarea[0], 'textarea still focused')
// Key escape
$input.trigger('focus')
var keydown = new Event('keydown')
keydown.which = 27
$input[0].dispatchEvent(keydown)
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is not shown')
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should ignore space key events for <input>s within dropdown, and accept up, down and escape', function (assert) {
assert.expect(7)
var done = assert.async()
var dropdownHTML =
'<ul class="nav tabs">' +
' <li class="dropdown">' +
' <input type="text" id="input" data-toggle="dropdown">' +
' <div class="dropdown-menu" role="menu">' +
' <a id="item1" class="dropdown-item" href="#">Secondary link</a>' +
' <a id="item2" class="dropdown-item" href="#">Something else here</a>' +
' <div class="divider"></div>' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
' </li>' +
'</ul>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $input = $('#input')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
// Key space
$input.trigger('focus').trigger($.Event('keydown', {
which: 32
}))
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
assert.ok($(document.activeElement).is($input), 'input is still focused')
// Key escape
$input.trigger('focus')
var keydown = new Event('keydown')
keydown.which = 27
$input[0].dispatchEvent(keydown)
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is not shown')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
// Key down
$input.trigger('focus')
var keydown40 = new Event('keydown')
keydown40.which = 40
$input[0].dispatchEvent(keydown40)
assert.ok(document.activeElement === $('#item1')[0], 'item1 is focused')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
// Key up
$input.trigger('focus')
var keydown38 = new Event('keydown')
keydown38.which = 38
$input[0].dispatchEvent(keydown38)
assert.ok(document.activeElement === $('#item1')[0], 'item1 is focused')
done()
})
.bootstrapDropdown('toggle')
$input.bootstrapDropdown('toggle')
})
$input.bootstrapDropdown('toggle')
})
$input[0].dispatchEvent(new Event('click'))
})
QUnit.test('should ignore space key events for <textarea>s within dropdown, and accept up, down and escape', function (assert) {
assert.expect(7)
var done = assert.async()
var dropdownHTML =
'<ul class="nav tabs">' +
' <li class="dropdown">' +
' <textarea id="textarea" data-toggle="dropdown"></textarea>' +
' <div class="dropdown-menu" role="menu">' +
' <a id="item1" class="dropdown-item" href="#">Secondary link</a>' +
' <a id="item2" class="dropdown-item" href="#">Something else here</a>' +
' <div class="divider"></div>' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
' </li>' +
'</ul>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var $textarea = $('#textarea')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
// Key space
$textarea.trigger('focus').trigger($.Event('keydown', {
which: 32
}))
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
assert.ok($(document.activeElement).is($textarea), 'textarea is still focused')
// Key escape
$textarea.trigger('focus')
var keydown27 = new Event('keydown')
keydown27.which = 27
$textarea[0].dispatchEvent(keydown27)
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is not shown')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
assert.ok(true, 'shown was fired')
// Key down
$textarea.trigger('focus')
var keydown40 = new Event('keydown')
keydown40.which = 40
$textarea[0].dispatchEvent(keydown40)
assert.ok(document.activeElement === $('#item1')[0], 'item1 is focused')
$dropdown
.parent('.dropdown')
.one('shown.bs.dropdown', function () {
// Key up
$textarea.trigger('focus')
var keydown38 = new Event('keydown')
keydown38.which = 38
$textarea[0].dispatchEvent(keydown38)
assert.ok(document.activeElement === $('#item1')[0], 'item1 is focused')
done()
})
.bootstrapDropdown('toggle')
$textarea.bootstrapDropdown('toggle')
})
$textarea.bootstrapDropdown('toggle')
})
$textarea[0].dispatchEvent(new Event('click'))
})
QUnit.test('should not use Popper.js if display set to static', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
'<a href="#" class="dropdown-toggle" data-toggle="dropdown" data-display="static">Dropdown</a>' +
'<div class="dropdown-menu">' +
'<a class="dropdown-item" href="#">Secondary link</a>' +
'<a class="dropdown-item" href="#">Something else here</a>' +
'<div class="divider"/>' +
'<a class="dropdown-item" href="#">Another link</a>' +
'</div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var done = assert.async()
var dropdownMenu = $dropdown.next()[0]
$dropdown.parent('.dropdown')
.on('shown.bs.dropdown', function () {
// Popper.js add this attribute when we use it
assert.strictEqual(dropdownMenu.getAttribute('x-placement'), null)
done()
})
$dropdown[0].dispatchEvent(new Event('click'))
})
QUnit.test('should call Popper.js and detect navbar on update', function (assert) {
assert.expect(3)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
dropdown.toggle()
assert.ok(dropdown._popper)
var spyPopper = sinon.spy(dropdown._popper, 'scheduleUpdate')
var spyDetectNavbar = sinon.spy(dropdown, '_detectNavbar')
dropdown.update()
assert.ok(spyPopper.called)
assert.ok(spyDetectNavbar.called)
})
QUnit.test('should just detect navbar on update', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
var spyDetectNavbar = sinon.spy(dropdown, '_detectNavbar')
dropdown.update()
assert.notOk(dropdown._popper)
assert.ok(spyDetectNavbar.called)
})
QUnit.test('should dispose dropdown with Popper', function (assert) {
assert.expect(6)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
dropdown.toggle()
assert.ok(dropdown._popper)
assert.ok(dropdown._menu !== null)
assert.ok(dropdown._element !== null)
var spyDestroy = sinon.spy(dropdown._popper, 'destroy')
dropdown.dispose()
assert.ok(spyDestroy.called)
assert.ok(dropdown._menu === null)
assert.ok(dropdown._element === null)
})
QUnit.test('should dispose dropdown', function (assert) {
assert.expect(5)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
assert.notOk(dropdown._popper)
assert.ok(dropdown._menu !== null)
assert.ok(dropdown._element !== null)
dropdown.dispose()
assert.ok(dropdown._menu === null)
assert.ok(dropdown._element === null)
})
QUnit.test('should hide dropdown', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
dropdown.hide()
})
.on('hide.bs.dropdown', function () {
assert.ok(true, 'hide was fired')
})
.on('hidden.bs.dropdown', function () {
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is hidden')
done()
})
dropdown.show()
})
QUnit.test('should not hide dropdown', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
$dropdown.trigger('click')
dropdown.show()
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is still shown')
})
QUnit.test('should not show dropdown', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
dropdown.hide()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is still hidden')
})
QUnit.test('should show dropdown', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function () {
assert.ok(true, 'show was fired')
})
.on('shown.bs.dropdown', function () {
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
dropdown.show()
})
QUnit.test('should prevent default event on show method call', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('show.bs.dropdown', function (event) {
event.preventDefault()
done()
})
dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is hidden')
})
QUnit.test('should prevent default event on hide method call', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown()
var dropdown = Dropdown._getInstance($dropdown[0])
var done = assert.async()
$dropdown
.parent('.dropdown')
.on('shown.bs.dropdown', function () {
dropdown.hide()
})
.on('hide.bs.dropdown', function (event) {
event.preventDefault()
assert.ok($dropdown.parent('.dropdown').hasClass('show'), 'dropdown menu is shown')
done()
})
dropdown.show()
})
QUnit.test('should not open dropdown via show method if target is disabled via attribute', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not open dropdown via show method if target is disabled via class', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown">' +
' <button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.show()
assert.ok(!$dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not hide dropdown via hide method if target is disabled via attribute', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown show">' +
' <button disabled href="#" class="btn dropdown-toggle" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.hide()
assert.ok($dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should not hide dropdown via hide method if target is disabled via class', function (assert) {
assert.expect(1)
var dropdownHTML =
'<div class="dropdown show">' +
' <button href="#" class="btn dropdown-toggle disabled" data-toggle="dropdown">Dropdown</button>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
$(dropdownHTML).appendTo('#qunit-fixture')
var $dropdown = $('#qunit-fixture').find('[data-toggle="dropdown"]').bootstrapDropdown()
$dropdown.hide()
assert.ok($dropdown.parent('.dropdown').hasClass('show'))
})
QUnit.test('should create offset modifier correctly when offset option is a function', function (assert) {
assert.expect(2)
var getOffset = function (offsets) {
return offsets
}
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown({
offset: getOffset
})
var dropdown = Dropdown._getInstance($dropdown[0])
var offset = dropdown._getOffset()
assert.ok(typeof offset.offset === 'undefined')
assert.ok(typeof offset.fn === 'function')
})
QUnit.test('should create offset modifier correctly when offset option is not a function', function (assert) {
assert.expect(2)
var dropdownHTML =
'<div class="dropdown">' +
' <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>' +
' <div class="dropdown-menu">' +
' <a class="dropdown-item" href="#">Another link</a>' +
' </div>' +
'</div>'
var myOffset = 42
var $dropdown = $(dropdownHTML)
.appendTo('#qunit-fixture')
.find('[data-toggle="dropdown"]')
.bootstrapDropdown({
offset: myOffset
})
var dropdown = Dropdown._getInstance($dropdown[0])
var offset = dropdown._getOffset()
assert.strictEqual(offset.offset, myOffset)
assert.ok(typeof offset.fn === 'undefined')
})
QUnit.test('should return the version', function (assert) {
assert.expect(1)
assert.strictEqual(typeof Dropdown.VERSION, 'string')
})
})