text: $(function () {
    'use strict'
  
    window.Util = typeof bootstrap !== 'undefined' ? bootstrap.Util : Util
  
    QUnit.module('util', {
      afterEach: function () {
        $('#qunit-fixture').html('')
      }
    })
  
    QUnit.test('Util.getSelectorFromElement should return the correct element', function (assert) {
      assert.expect(2)
  
      var $el = $('<div data-target="body"></div>').appendTo($('#qunit-fixture'))
      assert.strictEqual(Util.getSelectorFromElement($el[0]), 'body')
  
      // Not found element
      var $el2 = $('<div data-target="#fakeDiv"></div>').appendTo($('#qunit-fixture'))
      assert.strictEqual(Util.getSelectorFromElement($el2[0]), null)
    })
  
    QUnit.test('Util.getSelectorFromElement should return null when there is a bad selector', function (assert) {
      assert.expect(2)
  
      var $el = $('<div data-target="#1"></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getSelectorFromElement($el[0]), null)
  
      var $el2 = $('<a href="/posts"></a>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getSelectorFromElement($el2[0]), null)
    })
  
    QUnit.test('Util.typeCheckConfig should thrown an error when a bad config is passed', function (assert) {
      assert.expect(1)
      var namePlugin = 'collapse'
      var defaultType = {
        toggle: 'boolean',
        parent: '(string|element)'
      }
      var config = {
        toggle: true,
        parent: 777
      }
  
      try {
        Util.typeCheckConfig(namePlugin, config, defaultType)
      } catch (error) {
        assert.strictEqual(error.message, 'COLLAPSE: Option "parent" provided type "number" but expected type "(string|element)".')
      }
    })
  
    QUnit.test('Util.typeCheckConfig should return null/undefined stringified when passed', function (assert) {
      assert.expect(1)
      var namePlugin = 'collapse'
      var defaultType = {
        toggle: '(null|undefined)'
      }
      var config = {
        toggle: null
      }
  
      Util.typeCheckConfig(namePlugin, config, defaultType)
  
      config.toggle = undefined
  
      Util.typeCheckConfig(namePlugin, config, defaultType)
  
      assert.strictEqual(true, true)
    })
  
    QUnit.test('Util.isElement should check if we passed an element or not', function (assert) {
      assert.expect(3)
      var $div = $('<div id="test"></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.isElement($div), 1)
      assert.strictEqual(Util.isElement($div[0]), 1)
      assert.strictEqual(typeof Util.isElement({}) === 'undefined', true)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should accept transition durations in milliseconds', function (assert) {
      assert.expect(1)
      var $div = $('<div style="transition: all 300ms ease-out;"></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 300)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should accept transition durations in seconds', function (assert) {
      assert.expect(1)
      var $div = $('<div style="transition: all .4s ease-out;"></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 400)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should return the addition of transition-delay and transition-duration', function (assert) {
      assert.expect(2)
      var $fixture = $('#qunit-fixture')
      var $div = $('<div style="transition: all 0s 150ms ease-out;"></div>').appendTo($fixture)
      var $div2 = $('<div style="transition: all .25s 30ms ease-out;"></div>').appendTo($fixture)
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 150)
      assert.strictEqual(Util.getTransitionDurationFromElement($div2[0]), 280)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should get the first transition duration if multiple transition durations are defined', function (assert) {
      assert.expect(1)
      var $div = $('<div style="transition: transform .3s ease-out, opacity .2s;"></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 300)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should return 0 if transition duration is not defined', function (assert) {
      assert.expect(1)
      var $div = $('<div></div>').appendTo($('#qunit-fixture'))
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 0)
    })
  
    QUnit.test('Util.getTransitionDurationFromElement should return 0 if element is not found in DOM', function (assert) {
      assert.expect(1)
      var $div = $('#fake-id')
  
      assert.strictEqual(Util.getTransitionDurationFromElement($div[0]), 0)
    })
  
    QUnit.test('Util.getUID should generate a new id uniq', function (assert) {
      assert.expect(2)
      var id = Util.getUID('test')
      var id2 = Util.getUID('test')
  
      assert.ok(id !== id2, id + ' !== ' + id2)
  
      id = Util.getUID('test')
      $('<div id="' + id + '"></div>').appendTo($('#qunit-fixture'))
  
      id2 = Util.getUID('test')
      assert.ok(id !== id2, id + ' !== ' + id2)
    })
  
    QUnit.test('Util.supportsTransitionEnd should return true', function (assert) {
      assert.expect(1)
      assert.ok(Util.supportsTransitionEnd())
    })
  
    QUnit.test('Util.findShadowRoot should find the shadow DOM root', function (assert) {
      // Only for newer browsers
      if (!document.documentElement.attachShadow) {
        assert.expect(0)
        return
      }
  
      assert.expect(2)
      var $div = $('<div id="test"></div>').appendTo($('#qunit-fixture'))
      var shadowRoot = $div[0].attachShadow({
        mode: 'open'
      })
  
      assert.strictEqual(shadowRoot, Util.findShadowRoot(shadowRoot))
      shadowRoot.innerHTML = '<button>Shadow Button</button>'
      assert.strictEqual(shadowRoot, Util.findShadowRoot(shadowRoot.firstChild))
    })
  
    QUnit.test('Util.findShadowRoot should return null when attachShadow is not available', function (assert) {
      assert.expect(1)
  
      var $div = $('<div id="test"></div>').appendTo($('#qunit-fixture'))
      if (!document.documentElement.attachShadow) {
        assert.strictEqual(null, Util.findShadowRoot($div[0]))
      } else {
        var sandbox = sinon.createSandbox()
  
        sandbox.replace(document.documentElement, 'attachShadow', function () {
          // to avoid empty function
          return $div
        })
  
        assert.strictEqual(null, Util.findShadowRoot($div[0]))
        sandbox.restore()
      }
    })
  
    QUnit.test('Util.jQueryDetection should detect jQuery', function (assert) {
      assert.expect(0)
      Util.jQueryDetection()
    })
  })
  