Switch from QUnit to Jasmine.

18 files changed, 1090 insertions, 898 deletions

diff --git a/js/index.esm.js b/js/index.esm.js
index e49218a1e..e3a851537 100644
--- a/js/index.esm.js
+++ b/js/index.esm.js
@@ -5,7 +5,7 @@
  * --------------------------------------------------------------------------
  */
 
-import Alert from './src/alert'
+import Alert from './src/alert/alert'
 import Button from './src/button'
 import Carousel from './src/carousel'
 import Collapse from './src/collapse'
diff --git a/js/index.umd.js b/js/index.umd.js
index 0a1d5ac0b..039e6d1bb 100644
--- a/js/index.umd.js
+++ b/js/index.umd.js
@@ -5,7 +5,7 @@
  * --------------------------------------------------------------------------
  */
 
-import Alert from './src/alert'
+import Alert from './src/alert/alert'
 import Button from './src/button'
 import Carousel from './src/carousel'
 import Collapse from './src/collapse'
diff --git a/js/src/.eslintrc.json b/js/src/.eslintrc.json
new file mode 100644
index 000000000..18ffdc003
--- /dev/null
+++ b/js/src/.eslintrc.json
@@ -0,0 +1,14 @@
+{
+  "root": true,
+  "extends": [
+    "../../.eslintrc.json"
+  ],
+  "overrides": [
+    {
+      "files": ["**/*.spec.js"],
+      "env": {
+        "jasmine": true
+      }
+    }
+  ]
+}
diff --git a/js/src/alert.js b/js/src/alert/alert.js
index 23ac9f25d..99164bd19 100644
--- a/js/src/alert.js
+++ b/js/src/alert/alert.js
@@ -11,10 +11,10 @@ import {
   emulateTransitionEnd,
   getSelectorFromElement,
   getTransitionDurationFromElement
-} from './util/index'
-import Data from './dom/data'
-import EventHandler from './dom/event-handler'
-import SelectorEngine from './dom/selector-engine'
+} from '../util/index'
+import Data from '../dom/data'
+import EventHandler from '../dom/event-handler'
+import SelectorEngine from '../dom/selector-engine'
 
 /**
  * ------------------------------------------------------------------------
@@ -53,6 +53,7 @@ const ClassName = {
 class Alert {
   constructor(element) {
     this._element = element
+
     if (this._element) {
       Data.setData(element, DATA_KEY, this)
     }
@@ -118,7 +119,7 @@ class Alert {
     const transitionDuration = getTransitionDurationFromElement(element)
 
     EventHandler
-      .one(element, TRANSITION_END, event => this._destroyElement(element, event))
+      .one(element, TRANSITION_END, () => this._destroyElement(element))
     emulateTransitionEnd(element, transitionDuration)
   }
 
@@ -176,6 +177,7 @@ EventHandler
  * add .alert to jQuery only if jQuery is present
  */
 
+/* istanbul ignore if */
 if (typeof $ !== 'undefined') {
   const JQUERY_NO_CONFLICT = $.fn[NAME]
   $.fn[NAME] = Alert._jQueryInterface
diff --git a/js/src/alert/alert.spec.js b/js/src/alert/alert.spec.js
new file mode 100644
index 000000000..cb7b57b7f
--- /dev/null
+++ b/js/src/alert/alert.spec.js
@@ -0,0 +1,127 @@
+import Alert from './alert'
+import { makeArray, getTransitionDurationFromElement } from '../util/index'
+
+/** Test helpers */
+import { getFixture, clearFixture } from '../../tests/helpers/fixture'
+
+describe('Alert', () => {
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  it('should return version', () => {
+    expect(typeof Alert.VERSION).toEqual('string')
+  })
+
+  describe('data-api', () => {
+    it('should close an alert without instanciate it manually', () => {
+      fixtureEl.innerHTML = [
+        '<div class="alert">',
+        '  <button type="button" data-dismiss="alert">x</button>',
+        '</div>'
+      ].join('')
+
+      const button = document.querySelector('button')
+
+      button.click()
+      expect(makeArray(document.querySelectorAll('.alert')).length).toEqual(0)
+    })
+
+    it('should close an alert without instanciate it manually with the parent selector', () => {
+      fixtureEl.innerHTML = [
+        '<div class="alert">',
+        '  <button type="button" data-target=".alert" data-dismiss="alert">x</button>',
+        '</div>'
+      ].join('')
+
+      const button = document.querySelector('button')
+
+      button.click()
+      expect(makeArray(document.querySelectorAll('.alert')).length).toEqual(0)
+    })
+  })
+
+  describe('close', () => {
+    it('should close an alert', done => {
+      const spy = jasmine.createSpy('spy', getTransitionDurationFromElement)
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = document.querySelector('.alert')
+      const alert = new Alert(alertEl)
+
+      alertEl.addEventListener('closed.bs.alert', () => {
+        expect(makeArray(document.querySelectorAll('.alert')).length).toEqual(0)
+        expect(spy).not.toHaveBeenCalled()
+        done()
+      })
+
+      alert.close()
+    })
+
+    it('should close alert with fade class', done => {
+      fixtureEl.innerHTML = '<div class="alert fade"></div>'
+
+      const alertEl = document.querySelector('.alert')
+      const alert = new Alert(alertEl)
+
+      alertEl.addEventListener('transitionend', () => {
+        expect().nothing()
+      })
+
+      alertEl.addEventListener('closed.bs.alert', () => {
+        expect(makeArray(document.querySelectorAll('.alert')).length).toEqual(0)
+        done()
+      })
+
+      alert.close()
+    })
+
+    it('should not remove alert if close event is prevented', done => {
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = document.querySelector('.alert')
+      const alert = new Alert(alertEl)
+
+      const endTest = () => {
+        setTimeout(() => {
+          expect(alert._removeElement).not.toHaveBeenCalled()
+          done()
+        }, 10)
+      }
+
+      spyOn(alert, '_removeElement')
+
+      alertEl.addEventListener('close.bs.alert', event => {
+        event.preventDefault()
+        endTest()
+      })
+
+      alertEl.addEventListener('closed.bs.alert', () => {
+        endTest()
+      })
+
+      alert.close()
+    })
+  })
+
+  describe('dispose', () => {
+    it('should dispose an alert', () => {
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = document.querySelector('.alert')
+      const alert = new Alert(alertEl)
+
+      expect(Alert._getInstance(alertEl)).toBeDefined()
+
+      alert.dispose()
+
+      expect(Alert._getInstance(alertEl)).toBeNull()
+    })
+  })
+})
diff --git a/js/src/dom/data.spec.js b/js/src/dom/data.spec.js
new file mode 100644
index 000000000..46018dd5c
--- /dev/null
+++ b/js/src/dom/data.spec.js
@@ -0,0 +1,131 @@
+import Data from './data'
+
+/** Test helpers */
+import { getFixture, clearFixture } from '../../tests/helpers/fixture'
+
+describe('Data', () => {
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  describe('setData', () => {
+    it('should set data in an element by adding a key attribute', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+      expect(div.key).toBeDefined()
+    })
+
+    it('should change data if something is already stored', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+
+      data.test = 'bsData2'
+      Data.setData(div, 'test', data)
+
+      expect(div.key).toBeDefined()
+    })
+  })
+
+  describe('getData', () => {
+    it('should return stored data', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+      expect(Data.getData(div, 'test')).toEqual(data)
+    })
+
+    it('should return null on undefined element', () => {
+      expect(Data.getData(null)).toEqual(null)
+      expect(Data.getData(undefined)).toEqual(null)
+    })
+
+    it('should return null when an element have nothing stored', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Data.getData(div, 'test')).toEqual(null)
+    })
+
+    it('should return null when an element have nothing stored with the provided key', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+
+      expect(Data.getData(div, 'test2')).toEqual(null)
+    })
+  })
+
+  describe('removeData', () => {
+    it('should do nothing when an element have nothing stored', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      Data.removeData(div, 'test')
+      expect().nothing()
+    })
+
+    it('should should do nothing if it\'s not a valid key provided', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+
+      expect(div.key).toBeDefined()
+
+      Data.removeData(div, 'test2')
+
+      expect(div.key).toBeDefined()
+    })
+
+    it('should remove data if something is stored', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const data = {
+        test: 'bsData'
+      }
+
+      Data.setData(div, 'test', data)
+
+      expect(div.key).toBeDefined()
+
+      Data.removeData(div, 'test')
+
+      expect(div.key).toBeUndefined()
+    })
+  })
+})
diff --git a/js/src/dom/event-handler.js b/js/src/dom/event-handler.js
index 2dff88535..3310b41ab 100644
--- a/js/src/dom/event-handler.js
+++ b/js/src/dom/event-handler.js
@@ -192,7 +192,9 @@ function addHandler(element, originalTypeEvent, handler, delegationFn, oneOff) {
   }
 
   const uid = getUidEvent(originalHandler, originalTypeEvent.replace(namespaceRegex, ''))
-  const fn = delegation ? bootstrapDelegationHandler(element, handler, delegationFn) : bootstrapHandler(element, handler)
+  const fn = delegation ?
+    bootstrapDelegationHandler(element, handler, delegationFn) :
+    bootstrapHandler(element, handler)
 
   fn.delegationSelector = delegation ? handler : null
   fn.originalHandler = originalHandler
diff --git a/js/src/dom/event-handler.spec.js b/js/src/dom/event-handler.spec.js
new file mode 100644
index 000000000..dc5c5c30c
--- /dev/null
+++ b/js/src/dom/event-handler.spec.js
@@ -0,0 +1,327 @@
+import EventHandler from './event-handler'
+
+/** Test helpers */
+import { getFixture, clearFixture } from '../../tests/helpers/fixture'
+
+describe('EventHandler', () => {
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  describe('on', () => {
+    it('should not add event listener if the event is not a string', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      EventHandler.on(div, null, () => {})
+      EventHandler.on(null, 'click', () => {})
+
+      expect().nothing()
+    })
+
+    it('should add event listener', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      EventHandler.on(div, 'click', () => {
+        expect().nothing()
+        done()
+      })
+
+      div.click()
+    })
+
+    it('should add namespaced event listener', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      EventHandler.on(div, 'bs.namespace', () => {
+        expect().nothing()
+        done()
+      })
+
+      EventHandler.trigger(div, 'bs.namespace')
+    })
+
+    it('should add native namespaced event listener', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      EventHandler.on(div, 'click.namespace', () => {
+        expect().nothing()
+        done()
+      })
+
+      EventHandler.trigger(div, 'click')
+    })
+
+    it('should handle event delegation', done => {
+      EventHandler.on(document, 'click', '.test', () => {
+        expect().nothing()
+        done()
+      })
+
+      fixtureEl.innerHTML = '<div class="test"></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      div.click()
+    })
+  })
+
+  describe('one', () => {
+    it('should call listener just one', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      let called = 0
+      const div = fixtureEl.querySelector('div')
+      const obj = {
+        oneListener() {
+          called++
+        }
+      }
+
+      EventHandler.one(div, 'bootstrap', obj.oneListener)
+
+      EventHandler.trigger(div, 'bootstrap')
+      EventHandler.trigger(div, 'bootstrap')
+
+      setTimeout(() => {
+        expect(called).toEqual(1)
+        done()
+      }, 20)
+    })
+  })
+
+  describe('off', () => {
+    it('should not remove a listener', () => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      EventHandler.off(div, null, () => {})
+      EventHandler.off(null, 'click', () => {})
+      expect().nothing()
+    })
+
+    it('should remove a listener', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let called = 0
+      const handler = () => {
+        called++
+      }
+
+      EventHandler.on(div, 'foobar', handler)
+      EventHandler.trigger(div, 'foobar')
+
+      EventHandler.off(div, 'foobar', handler)
+      EventHandler.trigger(div, 'foobar')
+
+      setTimeout(() => {
+        expect(called).toEqual(1)
+        done()
+      }, 20)
+    })
+
+    it('should remove all the events', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let called = 0
+
+      EventHandler.on(div, 'foobar', () => {
+        called++
+      })
+      EventHandler.on(div, 'foobar', () => {
+        called++
+      })
+      EventHandler.trigger(div, 'foobar')
+
+      EventHandler.off(div, 'foobar')
+      EventHandler.trigger(div, 'foobar')
+
+      setTimeout(() => {
+        expect(called).toEqual(2)
+        done()
+      }, 20)
+    })
+
+    it('should remove all the namespaced listeners if namespace is passed', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let called = 0
+
+      EventHandler.on(div, 'foobar.namespace', () => {
+        called++
+      })
+      EventHandler.on(div, 'foofoo.namespace', () => {
+        called++
+      })
+      EventHandler.trigger(div, 'foobar.namespace')
+      EventHandler.trigger(div, 'foofoo.namespace')
+
+      EventHandler.off(div, '.namespace')
+      EventHandler.trigger(div, 'foobar.namespace')
+      EventHandler.trigger(div, 'foofoo.namespace')
+
+      setTimeout(() => {
+        expect(called).toEqual(2)
+        done()
+      }, 20)
+    })
+
+    it('should remove the namespaced listeners', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let calledCallback1 = 0
+      let calledCallback2 = 0
+
+      EventHandler.on(div, 'foobar.namespace', () => {
+        calledCallback1++
+      })
+      EventHandler.on(div, 'foofoo.namespace', () => {
+        calledCallback2++
+      })
+
+      EventHandler.trigger(div, 'foobar.namespace')
+      EventHandler.off(div, 'foobar.namespace')
+      EventHandler.trigger(div, 'foobar.namespace')
+
+      EventHandler.trigger(div, 'foofoo.namespace')
+
+      setTimeout(() => {
+        expect(calledCallback1).toEqual(1)
+        expect(calledCallback2).toEqual(1)
+        done()
+      }, 20)
+    })
+
+    it('should remove the all the namespaced listeners for native events', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let called = 0
+
+      EventHandler.on(div, 'click.namespace', () => {
+        called++
+      })
+      EventHandler.on(div, 'click.namespace2', () => {
+        called++
+      })
+
+      EventHandler.trigger(div, 'click')
+      EventHandler.off(div, 'click')
+      EventHandler.trigger(div, 'click')
+
+      setTimeout(() => {
+        expect(called).toEqual(2)
+        done()
+      }, 20)
+    })
+
+    it('should remove the specified namespaced listeners for native events', done => {
+      fixtureEl.innerHTML = '<div></div>'
+      const div = fixtureEl.querySelector('div')
+
+      let called1 = 0
+      let called2 = 0
+
+      EventHandler.on(div, 'click.namespace', () => {
+        called1++
+      })
+      EventHandler.on(div, 'click.namespace2', () => {
+        called2++
+      })
+      EventHandler.trigger(div, 'click')
+
+      EventHandler.off(div, 'click.namespace')
+      EventHandler.trigger(div, 'click')
+
+      setTimeout(() => {
+        expect(called1).toEqual(1)
+        expect(called2).toEqual(2)
+        done()
+      }, 20)
+    })
+
+    it('should remove a listener registered by .one', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const handler = () => {
+        throw new Error('called')
+      }
+
+      EventHandler.one(div, 'foobar', handler)
+      EventHandler.off(div, 'foobar', handler)
+
+      EventHandler.trigger(div, 'foobar')
+      setTimeout(() => {
+        expect().nothing()
+        done()
+      }, 20)
+    })
+
+    it('should remove the correct delegated event listener', () => {
+      const element = document.createElement('div')
+      const subelement = document.createElement('span')
+      element.appendChild(subelement)
+
+      const anchor = document.createElement('a')
+      element.appendChild(anchor)
+
+      let i = 0
+      const handler = () => {
+        i++
+      }
+
+      EventHandler.on(element, 'click', 'a', handler)
+      EventHandler.on(element, 'click', 'span', handler)
+
+      fixtureEl.appendChild(element)
+
+      EventHandler.trigger(anchor, 'click')
+      EventHandler.trigger(subelement, 'click')
+
+      // first listeners called
+      expect(i === 2).toEqual(true)
+
+      EventHandler.off(element, 'click', 'span', handler)
+      EventHandler.trigger(subelement, 'click')
+
+      // removed listener not called
+      expect(i === 2).toEqual(true)
+
+      EventHandler.trigger(anchor, 'click')
+
+      // not removed listener called
+      expect(i === 3).toEqual(true)
+
+      EventHandler.on(element, 'click', 'span', handler)
+      EventHandler.trigger(anchor, 'click')
+      EventHandler.trigger(subelement, 'click')
+
+      // listener re-registered
+      expect(i === 5).toEqual(true)
+
+      EventHandler.off(element, 'click', 'span')
+      EventHandler.trigger(subelement, 'click')
+
+      // listener removed again
+      expect(i === 5).toEqual(true)
+    })
+  })
+})
diff --git a/js/src/util/index.spec.js b/js/src/util/index.spec.js
new file mode 100644
index 000000000..4b2d41685
--- /dev/null
+++ b/js/src/util/index.spec.js
@@ -0,0 +1,297 @@
+import * as Util from './index'
+
+/** Test helpers */
+import { getFixture, clearFixture } from '../../tests/helpers/fixture'
+
+describe('Util', () => {
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  describe('getUID', () => {
+    it('should generate uid', () => {
+      const uid = Util.getUID('bs')
+      const uid2 = Util.getUID('bs')
+
+      expect(uid).not.toEqual(uid2)
+    })
+  })
+
+  describe('getSelectorFromElement', () => {
+    it('should get selector from data-target', () => {
+      fixtureEl.innerHTML = [
+        '<div id="test" data-target=".target"></div>',
+        '<div class="target"></div>'
+      ].join('')
+
+      const testEl = fixtureEl.querySelector('#test')
+
+      expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
+    })
+
+    it('should get selector from href if no data-target set', () => {
+      fixtureEl.innerHTML = [
+        '<a id="test" href=".target"></a>',
+        '<div class="target"></div>'
+      ].join('')
+
+      const testEl = fixtureEl.querySelector('#test')
+
+      expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
+    })
+
+    it('should get selector from href if data-target equal to #', () => {
+      fixtureEl.innerHTML = [
+        '<a id="test" data-target="#" href=".target"></a>',
+        '<div class="target"></div>'
+      ].join('')
+
+      const testEl = fixtureEl.querySelector('#test')
+
+      expect(Util.getSelectorFromElement(testEl)).toEqual('.target')
+    })
+
+    it('should return null if selector not found', () => {
+      fixtureEl.innerHTML = '<a id="test" href=".target"></a>'
+
+      const testEl = fixtureEl.querySelector('#test')
+
+      expect(Util.getSelectorFromElement(testEl)).toBeNull()
+    })
+  })
+
+  describe('getTransitionDurationFromElement', () => {
+    it('should get transition from element', () => {
+      fixtureEl.innerHTML = '<div style="transition: all 300ms ease-out;"></div>'
+
+      expect(Util.getTransitionDurationFromElement(fixtureEl.querySelector('div'))).toEqual(300)
+    })
+
+    it('should return 0 if the element is undefined or null', () => {
+      expect(Util.getTransitionDurationFromElement(null)).toEqual(0)
+      expect(Util.getTransitionDurationFromElement(undefined)).toEqual(0)
+    })
+
+    it('should return 0 if the element do not possess transition', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      expect(Util.getTransitionDurationFromElement(fixtureEl.querySelector('div'))).toEqual(0)
+    })
+  })
+
+  describe('triggerTransitionEnd', () => {
+    it('should trigger transitionend event', done => {
+      fixtureEl.innerHTML = '<div style="transition: all 300ms ease-out;"></div>'
+
+      const el = fixtureEl.querySelector('div')
+
+      el.addEventListener('transitionend', () => {
+        expect().nothing()
+        done()
+      })
+
+      Util.triggerTransitionEnd(el)
+    })
+  })
+
+  describe('isElement', () => {
+    it('should detect if the parameter is an element or not', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const el = document.querySelector('div')
+
+      expect(Util.isElement(el)).toEqual(el.nodeType)
+      expect(Util.isElement({})).toEqual(undefined)
+    })
+
+    it('should detect jQuery element', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const el = document.querySelector('div')
+      const fakejQuery = {
+        0: el
+      }
+
+      expect(Util.isElement(fakejQuery)).toEqual(el.nodeType)
+    })
+  })
+
+  describe('emulateTransitionEnd', () => {
+    it('should emulate transition end', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const el = document.querySelector('div')
+      const spy = spyOn(window, 'setTimeout')
+
+      Util.emulateTransitionEnd(el, 10)
+      expect(spy).toHaveBeenCalled()
+    })
+
+    it('should not emulate transition end if already triggered', done => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const el = fixtureEl.querySelector('div')
+      const spy = spyOn(el, 'removeEventListener')
+
+      Util.emulateTransitionEnd(el, 10)
+      Util.triggerTransitionEnd(el)
+
+      setTimeout(() => {
+        expect(spy).toHaveBeenCalled()
+        done()
+      }, 20)
+    })
+  })
+
+  describe('typeCheckConfig', () => {
+    it('should check type of the config object', () => {
+      const namePlugin = 'collapse'
+      const defaultType = {
+        toggle: 'boolean',
+        parent: '(string|element)'
+      }
+      const config = {
+        toggle: true,
+        parent: 777
+      }
+
+      expect(() => {
+        Util.typeCheckConfig(namePlugin, config, defaultType)
+      }).toThrow(new Error('COLLAPSE: Option "parent" provided type "number" but expected type "(string|element)".'))
+    })
+  })
+
+  describe('makeArray', () => {
+    it('should convert node list to array', () => {
+      const nodeList = document.querySelectorAll('div')
+
+      expect(Array.isArray(nodeList)).toEqual(false)
+      expect(Array.isArray(Util.makeArray(nodeList))).toEqual(true)
+    })
+
+    it('should return an empty array if the nodeList is undefined', () => {
+      expect(Util.makeArray(null)).toEqual([])
+      expect(Util.makeArray(undefined)).toEqual([])
+    })
+  })
+
+  describe('isVisible', () => {
+    it('should return false if the element is not defined', () => {
+      expect(Util.isVisible(null)).toEqual(false)
+      expect(Util.isVisible(undefined)).toEqual(false)
+    })
+
+    it('should return false if the element provided is not a dom element', () => {
+      expect(Util.isVisible({})).toEqual(false)
+    })
+
+    it('should return false if the element is not visible with display none', () => {
+      fixtureEl.innerHTML = '<div style="display: none;"></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Util.isVisible(div)).toEqual(false)
+    })
+
+    it('should return false if the element is not visible with visibility hidden', () => {
+      fixtureEl.innerHTML = '<div style="visibility: hidden;"></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Util.isVisible(div)).toEqual(false)
+    })
+
+    it('should return false if the parent element is not visible', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Util.isVisible(div)).toEqual(false)
+    })
+
+    it('should return true if the element is visible', () => {
+      fixtureEl.innerHTML = [
+        '<div>',
+        '  <div id="element"></div>',
+        '</div>'
+      ].join('')
+
+      const div = fixtureEl.querySelector('#element')
+
+      expect(Util.isVisible(div)).toEqual(true)
+    })
+  })
+
+  describe('findShadowRoot', () => {
+    it('should return null if shadow dom is not available', () => {
+      // Only for newer browsers
+      if (!document.documentElement.attachShadow) {
+        expect().nothing()
+        return
+      }
+
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      spyOn(document.documentElement, 'attachShadow').and.returnValue(null)
+
+      expect(Util.findShadowRoot(div)).toEqual(null)
+    })
+
+    it('should return null when we do not find a shadow root', () => {
+      // Only for newer browsers
+      if (!document.documentElement.attachShadow) {
+        expect().nothing()
+        return
+      }
+
+      spyOn(document, 'getRootNode').and.returnValue(undefined)
+
+      expect(Util.findShadowRoot(document)).toEqual(null)
+    })
+
+    it('should return the shadow root when found', () => {
+      // Only for newer browsers
+      if (!document.documentElement.attachShadow) {
+        expect().nothing()
+        return
+      }
+
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const shadowRoot = div.attachShadow({
+        mode: 'open'
+      })
+
+      expect(Util.findShadowRoot(shadowRoot)).toEqual(shadowRoot)
+
+      shadowRoot.innerHTML = '<button>Shadow Button</button>'
+
+      expect(Util.findShadowRoot(shadowRoot.firstChild)).toEqual(shadowRoot)
+    })
+  })
+
+  describe('noop', () => {
+    it('should return a function', () => {
+      expect(typeof Util.noop()).toEqual('function')
+    })
+  })
+
+  describe('reflow', () => {
+    it('should return element offset height to force the reflow', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Util.reflow(div)).toEqual(0)
+    })
+  })
+})
diff --git a/js/src/util/sanitizer.spec.js b/js/src/util/sanitizer.spec.js
new file mode 100644
index 000000000..6dadd29a5
--- /dev/null
+++ b/js/src/util/sanitizer.spec.js
@@ -0,0 +1,70 @@
+import { DefaultWhitelist, sanitizeHtml } from './sanitizer'
+
+describe('Sanitizer', () => {
+  describe('sanitizeHtml', () => {
+    it('should return the same on empty string', () => {
+      const empty = ''
+
+      const result = sanitizeHtml(empty, DefaultWhitelist, null)
+
+      expect(result).toEqual(empty)
+    })
+
+    it('should sanitize template by removing tags with XSS', () => {
+      const template = [
+        '<div>',
+        '  <a href="javascript:alert(7)">Click me</a>',
+        '  <span>Some content</span>',
+        '</div>'
+      ].join('')
+
+      const result = sanitizeHtml(template, DefaultWhitelist, null)
+
+      expect(result.indexOf('script') === -1).toEqual(true)
+    })
+
+    it('should allow aria attributes and safe attributes', () => {
+      const template = [
+        '<div aria-pressed="true">',
+        '  <span class="test">Some content</span>',
+        '</div>'
+      ].join('')
+
+      const result = sanitizeHtml(template, DefaultWhitelist, null)
+
+      expect(result.indexOf('aria-pressed') !== -1).toEqual(true)
+      expect(result.indexOf('class="test"') !== -1).toEqual(true)
+    })
+
+    it('should remove not whitelist tags', () => {
+      const template = [
+        '<div>',
+        '  <script>alert(7)</script>',
+        '</div>'
+      ].join('')
+
+      const result = sanitizeHtml(template, DefaultWhitelist, null)
+
+      expect(result.indexOf('<script>') === -1).toEqual(true)
+    })
+
+    it('should not use native api to sanitize if a custom function passed', () => {
+      const template = [
+        '<div>',
+        '  <span>Some content</span>',
+        '</div>'
+      ].join('')
+
+      function mySanitize(htmlUnsafe) {
+        return htmlUnsafe
+      }
+
+      spyOn(DOMParser.prototype, 'parseFromString')
+
+      const result = sanitizeHtml(template, DefaultWhitelist, mySanitize)
+
+      expect(result).toEqual(template)
+      expect(DOMParser.prototype.parseFromString).not.toHaveBeenCalled()
+    })
+  })
+})
diff --git a/js/tests/README.md b/js/tests/README.md
index 3b079d92c..3a01d3399 100644
--- a/js/tests/README.md
+++ b/js/tests/README.md
@@ -1,20 +1,16 @@
 ## How does Bootstrap's test suite work?
 
-Bootstrap uses [QUnit](https://qunitjs.com/) and [Sinon](https://sinonjs.org/). Each plugin has a file dedicated to its tests in `unit/<plugin-name>.js`.
+Bootstrap uses [Jasmine](https://jasmine.github.io/). Each plugin has a file dedicated to its tests in `src/<plugin-name>/<plugin-name>.spec.js`.
 
-* `unit/` contains the unit test files for each Bootstrap plugin.
-* `vendor/` contains third-party testing-related code (QUnit, jQuery and Sinon).
 * `visual/` contains "visual" tests which are run interactively in real browsers and require manual verification by humans.
 
 To run the unit test suite via [Karma](https://karma-runner.github.io/), run `npm run js-test`.
-
-To run the unit test suite via a real web browser, open `index.html` in the browser.
-
+To run the unit test suite via [Karma](https://karma-runner.github.io/) and debug, run `npm run js-debug`.
 
 ## How do I add a new unit test?
 
-1. Locate and open the file dedicated to the plugin which you need to add tests to (`unit/<plugin-name>.js`).
-2. Review the [QUnit API Documentation](https://api.qunitjs.com/) and use the existing tests as references for how to structure your new tests.
+1. Locate and open the file dedicated to the plugin which you need to add tests to (`src/<plugin-name>/<plugin-name>.spec.js`).
+2. Review the [Jasmine API Documentation](https://jasmine.github.io/pages/docs_home.html) and use the existing tests as references for how to structure your new tests.
 3. Write the necessary unit test(s) for the new or revised functionality.
 4. Run `npm run js-test` to see the results of your newly-added test(s).
 
@@ -23,47 +19,53 @@ To run the unit test suite via a real web browser, open `index.html` in the brow
 ## What should a unit test look like?
 
 * Each test should have a unique name clearly stating what unit is being tested.
+* Each test should be in the corresponding `describe`.
 * Each test should test only one unit per test, although one test can include several assertions. Create multiple tests for multiple units of functionality.
-* Each test should begin with [`assert.expect`](https://api.qunitjs.com/assert/expect/) to ensure that the expected assertions are run.
+* Each test should use [`expect`](https://jasmine.github.io/api/edge/matchers.html) to ensure something is expected.
 * Each test should follow the project's [JavaScript Code Guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md#js)
 
 ## Code coverage
 
-Currently we're aiming for at least 80% test coverage for our code. To ensure your changes meet or exceed this limit, run `npm run js-compile && npm run js-test` and open the file in `js/coverage/lcov-report/index.html` to see the code coverage for each plugin. See more details when you select a plugin and ensure your change is fully covered by unit tests.
+Currently we're aiming for at least 90% test coverage for our code. To ensure your changes meet or exceed this limit, run `npm run js-compile && npm run js-test` and open the file in `js/coverage/lcov-report/index.html` to see the code coverage for each plugin. See more details when you select a plugin and ensure your change is fully covered by unit tests.
 
 ### Example tests
 
 ```js
 // Synchronous test
-QUnit.test('should describe the unit being tested', function (assert) {
-  assert.expect(1)
-  var templateHTML = '<div class="alert alert-danger fade show">' +
-        '<a class="close" href="#" data-dismiss="alert">×</a>' +
-        '<p><strong>Template necessary for the test.</p>' +
-        '</div>'
-  var $alert = $(templateHTML).appendTo('#qunit-fixture').bootstrapAlert()
-
-  $alert.find('.close').trigger('click')
-
-  // Make assertion
-  assert.strictEqual($alert.hasClass('show'), false, 'remove .show class on .close click')
+describe('_getInstance', () => {
+  it('should return null if there is no instance', () => {
+    // Make assertion
+    expect(Tab._getInstance(fixtureEl)).toEqual(null)
+  })
+
+  it('should return this instance', () => {
+    fixtureEl.innerHTML = '<div></div>'
+
+    const divEl = fixtureEl.querySelector('div')
+    const tab = new Tab(divEl)
+
+    // Make assertion
+    expect(Tab._getInstance(divEl)).toEqual(tab)
+  })
 })
 
 // Asynchronous test
-QUnit.test('should describe the unit being tested', function (assert) {
-  assert.expect(2)
-  var done = assert.async()
-
-  var $tooltip = $('<div title="tooltip title"></div>').bootstrapTooltip()
-  var tooltipInstance = $tooltip.data('bs.tooltip')
-  var spyShow = sinon.spy(tooltipInstance, 'show')
-
-  $tooltip.appendTo('#qunit-fixture')
-    .on('shown.bs.tooltip', function () {
-      assert.ok(true, '"shown" event was fired after calling "show"')
-      assert.ok(spyShow.called, 'show called')
-      done()
-    })
-    .bootstrapTooltip('show')
+it('should show a tooltip without the animation', done => {
+  fixtureEl.innerHTML = '<a href="#" rel="tooltip" title="Another tooltip"/>'
+
+  const tooltipEl = fixtureEl.querySelector('a')
+  const tooltip = new Tooltip(tooltipEl, {
+    animation: false
+  })
+
+  tooltipEl.addEventListener('shown.bs.tooltip', () => {
+    const tip = document.querySelector('.tooltip')
+
+    expect(tip).toBeDefined()
+    expect(tip.classList.contains('fade')).toEqual(false)
+    done()
+  })
+
+  tooltip.show()
 })
 ```
diff --git a/js/tests/helpers/fixture.js b/js/tests/helpers/fixture.js
new file mode 100644
index 000000000..524d54444
--- /dev/null
+++ b/js/tests/helpers/fixture.js
@@ -0,0 +1,20 @@
+const fixtureId = 'fixture'
+
+export const getFixture = () => {
+  let fixtureEl = document.getElementById(fixtureId)
+
+  if (!fixtureEl) {
+    fixtureEl = document.createElement('div')
+    fixtureEl.setAttribute('id', fixtureId)
+    fixtureEl.style.display = 'none'
+    document.body.appendChild(fixtureEl)
+  }
+
+  return fixtureEl
+}
+
+export const clearFixture = () => {
+  const fixtureEl = getFixture()
+
+  fixtureEl.innerHTML = ''
+}
diff --git a/js/tests/karma.conf.js b/js/tests/karma.conf.js
index e3851663a..b5b9fb373 100644
--- a/js/tests/karma.conf.js
+++ b/js/tests/karma.conf.js
@@ -7,22 +7,19 @@ const {
   browsers,
   browsersKeys
 } = require('./browsers')
+const babel = require('rollup-plugin-babel')
+const istanbul = require('rollup-plugin-istanbul')
 
 const { env } = process
-const bundle = env.BUNDLE === 'true'
 const browserStack = env.BROWSER === 'true'
 const debug = env.DEBUG === 'true'
-
-const jqueryFile = 'node_modules/jquery/dist/jquery.slim.min.js'
-
 const frameworks = [
-  'qunit',
-  'sinon'
+  'jasmine'
 ]
 
 const plugins = [
-  'karma-qunit',
-  'karma-sinon'
+  'karma-jasmine',
+  'karma-rollup-preprocessor'
 ]
 
 const reporters = ['dots']
@@ -49,10 +46,35 @@ const customLaunchers = {
   }
 }
 
-let files = [
-  'node_modules/popper.js/dist/umd/popper.min.js',
-  'node_modules/hammer-simulator/index.js'
-]
+const rollupPreprocessor = {
+  plugins: [
+    istanbul({
+      exclude: ['js/src/**/*.spec.js']
+    }),
+    babel({
+      // Only transpile our source code
+      exclude: 'node_modules/**',
+      // Include only required helpers
+      externalHelpersWhitelist: [
+        'defineProperties',
+        'createClass',
+        'inheritsLoose',
+        'defineProperty',
+        'objectSpread2'
+      ],
+      plugins: [
+        '@babel/plugin-proposal-object-rest-spread'
+      ]
+    })
+  ],
+  output: {
+    format: 'iife',
+    name: 'bootstrapTest',
+    sourcemap: 'inline'
+  }
+}
+
+let files = []
 
 const conf = {
   basePath: '../..',
@@ -62,28 +84,11 @@ const conf = {
   singleRun: true,
   concurrency: Infinity,
   client: {
-    qunit: {
-      showUI: true
-    }
+    clearContext: false
   }
 }
 
-if (bundle) {
-  frameworks.push('detectBrowsers')
-  plugins.push(
-    'karma-chrome-launcher',
-    'karma-firefox-launcher',
-    'karma-detect-browsers'
-  )
-  conf.customLaunchers = customLaunchers
-  conf.detectBrowsers = detectBrowsers
-  files = files.concat([
-    jqueryFile,
-    'js/tests/unit/tests-polyfills.js',
-    'dist/js/bootstrap.js',
-    'js/tests/unit/!(tests-polyfills).js'
-  ])
-} else if (browserStack) {
+if (browserStack) {
   conf.hostname = ip.address()
   conf.browserStack = {
     username: env.BROWSER_STACK_USERNAME,
@@ -92,27 +97,17 @@ if (bundle) {
     project: 'Bootstrap',
     retryLimit: 2
   }
-  plugins.push('karma-browserstack-launcher')
+  plugins.push('karma-browserstack-launcher', 'karma-jasmine-html-reporter')
   conf.customLaunchers = browsers
   conf.browsers = browsersKeys
-  reporters.push('BrowserStack')
+  reporters.push('BrowserStack', 'kjhtml')
   files = files.concat([
-    jqueryFile,
-    'js/tests/unit/tests-polyfills.js',
-    'js/coverage/dist/util/index.js',
-    'js/coverage/dist/util/sanitizer.js',
-    'js/coverage/dist/dom/polyfill.js',
-    'js/coverage/dist/dom/event-handler.js',
-    'js/coverage/dist/dom/selector-engine.js',
-    'js/coverage/dist/dom/data.js',
-    'js/coverage/dist/dom/manipulator.js',
-    'js/coverage/dist/dom/!(polyfill).js',
-    'js/coverage/dist/tooltip.js',
-    'js/coverage/dist/!(util|index|tooltip).js', // include all of our js/dist files except util.js, index.js and tooltip.js
-    'js/tests/unit/!(tests-polyfills).js',
-    'js/tests/unit/dom/*.js',
-    'js/tests/unit/util/*.js'
+    { pattern: 'js/src/**/*.spec.js', watched: false }
   ])
+  conf.preprocessors = {
+    'js/src/**/*.spec.js': ['rollup']
+  }
+  conf.rollupPreprocessor = rollupPreprocessor
 } else {
   frameworks.push('detectBrowsers')
   plugins.push(
@@ -122,23 +117,13 @@ if (bundle) {
     'karma-coverage-istanbul-reporter'
   )
   files = files.concat([
-    jqueryFile,
-    'js/tests/unit/tests-polyfills.js',
-    'js/coverage/dist/util/index.js',
-    'js/coverage/dist/util/sanitizer.js',
-    'js/coverage/dist/dom/polyfill.js',
-    'js/coverage/dist/dom/event-handler.js',
-    'js/coverage/dist/dom/selector-engine.js',
-    'js/coverage/dist/dom/data.js',
-    'js/coverage/dist/dom/manipulator.js',
-    'js/coverage/dist/dom/!(polyfill).js',
-    'js/coverage/dist/tooltip.js',
-    'js/coverage/dist/!(util|index|tooltip).js', // include all of our js/dist files except util.js, index.js and tooltip.js
-    'js/tests/unit/!(tests-polyfills).js',
-    'js/tests/unit/dom/*.js',
-    'js/tests/unit/util/*.js'
+    { pattern: 'js/src/**/*.spec.js', watched: true }
   ])
   reporters.push('coverage-istanbul')
+  conf.preprocessors = {
+    'js/src/**/*.spec.js': ['rollup']
+  }
+  conf.rollupPreprocessor = rollupPreprocessor
   conf.customLaunchers = customLaunchers
   conf.detectBrowsers = detectBrowsers
   conf.coverageIstanbulReporter = {
@@ -148,8 +133,8 @@ if (bundle) {
       emitWarning: false,
       global: {
         statements: 90,
-        branches: 86,
-        functions: 89,
+        branches: 90,
+        functions: 90,
         lines: 90
       },
       each: {
@@ -166,6 +151,9 @@ if (bundle) {
   }
 
   if (debug) {
+    conf.hostname = ip.address()
+    plugins.push('karma-jasmine-html-reporter')
+    reporters.push('kjhtml')
     conf.singleRun = false
     conf.autoWatch = true
   }
diff --git a/js/tests/unit/alert.js b/js/tests/unit/alert.js
deleted file mode 100644
index c03435618..000000000
--- a/js/tests/unit/alert.js
+++ /dev/null
@@ -1,123 +0,0 @@
-$(function () {
-  'use strict'
-
-  var Alert = typeof window.bootstrap === 'undefined' ? window.Alert : window.bootstrap.Alert
-
-  QUnit.module('alert plugin')
-
-  QUnit.test('should be defined on jquery object', function (assert) {
-    assert.expect(1)
-    assert.ok($(document.body).alert, 'alert method is defined')
-  })
-
-  QUnit.module('alert', {
-    beforeEach: function () {
-      // Run all tests in noConflict mode -- it's the only way to ensure that the plugin works in noConflict mode
-      $.fn.bootstrapAlert = $.fn.alert.noConflict()
-    },
-    afterEach: function () {
-      $.fn.alert = $.fn.bootstrapAlert
-      delete $.fn.bootstrapAlert
-      $('#qunit-fixture').html('')
-    }
-  })
-
-  QUnit.test('should provide no conflict', function (assert) {
-    assert.expect(1)
-    assert.strictEqual(typeof $.fn.alert, 'undefined', 'alert was set back to undefined (org value)')
-  })
-
-  QUnit.test('should return jquery collection containing the element', function (assert) {
-    assert.expect(2)
-    var $el = $('<div/>')
-    var $alert = $el.bootstrapAlert()
-    assert.ok($alert instanceof $, 'returns jquery collection')
-    assert.strictEqual($alert[0], $el[0], 'collection contains element')
-  })
-
-  QUnit.test('should fade element out on clicking .close', function (assert) {
-    assert.expect(1)
-    var alertHTML = '<div class="alert alert-danger fade show">' +
-        '<a class="close" href="#" data-dismiss="alert">×</a>' +
-        '<p><strong>Holy guacamole!</strong> Best check yo self, you\'re not looking too good.</p>' +
-        '</div>'
-
-    var $alert = $(alertHTML).bootstrapAlert().appendTo($('#qunit-fixture'))
-
-    var closeBtn = $alert.find('.close')[0]
-    closeBtn.dispatchEvent(new Event('click'))
-    assert.strictEqual($alert.hasClass('show'), false, 'remove .show class on .close click')
-  })
-
-  QUnit.test('should remove element when clicking .close', function (assert) {
-    assert.expect(2)
-    var done = assert.async()
-    var alertHTML = '<div class="alert alert-danger fade show">' +
-        '<a class="close" href="#" data-dismiss="alert">×</a>' +
-        '<p><strong>Holy guacamole!</strong> Best check yo self, you\'re not looking too good.</p>' +
-        '</div>'
-    var $alert = $(alertHTML).appendTo('#qunit-fixture').bootstrapAlert()
-
-    assert.notEqual($('#qunit-fixture').find('.alert').length, 0, 'element added to dom')
-
-    $alert[0].addEventListener('closed.bs.alert', function () {
-      assert.strictEqual($('#qunit-fixture').find('.alert').length, 0, 'element removed from dom')
-      done()
-    })
-
-    var closeBtn = $alert.find('.close')[0]
-    closeBtn.dispatchEvent(new Event('click'))
-  })
-
-  QUnit.test('should not fire closed when close is prevented', function (assert) {
-    assert.expect(1)
-    var done = assert.async()
-    var $alert = $('<div class="alert"/>')
-    $alert.appendTo('#qunit-fixture')
-
-    $alert[0].addEventListener('close.bs.alert', function (e) {
-      e.preventDefault()
-      assert.ok(true, 'close event fired')
-      done()
-    })
-    $alert[0].addEventListener('closed.bs.alert', function () {
-      assert.ok(false, 'closed event fired')
-    })
-
-    $alert.bootstrapAlert('close')
-  })
-
-  QUnit.test('close should use internal _element if no element provided', function (assert) {
-    assert.expect(1)
-
-    var done = assert.async()
-    var $el = $('<div/>')
-    var $alert = $el.bootstrapAlert()
-    var alertInstance = Alert._getInstance($alert[0])
-
-    $alert[0].addEventListener('closed.bs.alert', function () {
-      assert.ok('alert closed')
-      done()
-    })
-
-    alertInstance.close()
-  })
-
-  QUnit.test('dispose should remove data and the element', function (assert) {
-    assert.expect(2)
-
-    var $el = $('<div/>')
-    var $alert = $el.bootstrapAlert()
-
-    assert.ok(typeof Alert._getInstance($alert[0]) !== 'undefined')
-
-    Alert._getInstance($alert[0]).dispose()
-
-    assert.ok(Alert._getInstance($alert[0]) === null)
-  })
-
-  QUnit.test('should return the version', function (assert) {
-    assert.expect(1)
-    assert.strictEqual(typeof Alert.VERSION, 'string')
-  })
-})
diff --git a/js/tests/unit/dom/data.js b/js/tests/unit/dom/data.js
deleted file mode 100644
index 63d25b292..000000000
--- a/js/tests/unit/dom/data.js
+++ /dev/null
@@ -1,83 +0,0 @@
-$(function () {
-  'use strict'
-
-  QUnit.module('data')
-
-  QUnit.test('should be defined', function (assert) {
-    assert.expect(1)
-    assert.ok(Data, 'Data is defined')
-  })
-
-  QUnit.test('should set data in a element', function (assert) {
-    assert.expect(1)
-
-    var $div = $('<div />').appendTo('#qunit-fixture')
-    var data = {
-      test: 'bsData'
-    }
-    Data.setData($div[0], 'test', data)
-
-    assert.ok($div[0].key, 'element have a data key')
-  })
-
-  QUnit.test('should get data from an element', function (assert) {
-    assert.expect(1)
-
-    var $div = $('<div />').appendTo('#qunit-fixture')
-    var data = {
-      test: 'bsData'
-    }
-    Data.setData($div[0], 'test', data)
-
-    assert.strictEqual(Data.getData($div[0], 'test'), data)
-  })
-
-  QUnit.test('should return null if nothing is stored', function (assert) {
-    assert.expect(1)
-    assert.ok(Data.getData(document.body, 'test') === null)
-  })
-
-  QUnit.test('should return null if nothing is stored with an existing key', function (assert) {
-    assert.expect(1)
-
-    var $div = $('<div />').appendTo('#qunit-fixture')
-    $div[0].key = {
-      key: 'test2',
-      data: 'woot woot'
-    }
-
-    assert.ok(Data.getData($div[0], 'test') === null)
-  })
-
-  QUnit.test('should delete data', function (assert) {
-    assert.expect(2)
-
-    var $div = $('<div />').appendTo('#qunit-fixture')
-    var data = {
-      test: 'bsData'
-    }
-    Data.setData($div[0], 'test', data)
-    assert.ok(Data.getData($div[0], 'test') !== null)
-
-    Data.removeData($div[0], 'test')
-    assert.ok(Data.getData($div[0], 'test') === null)
-  })
-
-  QUnit.test('should delete nothing if there are nothing', function (assert) {
-    assert.expect(0)
-
-    Data.removeData(document.body, 'test')
-  })
-
-  QUnit.test('should delete nothing if not the good key', function (assert) {
-    assert.expect(0)
-
-    var $div = $('<div />').appendTo('#qunit-fixture')
-    $div[0].key = {
-      key: 'test2',
-      data: 'woot woot'
-    }
-
-    Data.removeData($div[0], 'test')
-  })
-})
diff --git a/js/tests/unit/dom/event-handler.js b/js/tests/unit/dom/event-handler.js
deleted file mode 100644
index 076a28a8a..000000000
--- a/js/tests/unit/dom/event-handler.js
+++ /dev/null
@@ -1,340 +0,0 @@
-$(function () {
-  'use strict'
-
-  QUnit.module('eventHandler')
-
-  QUnit.test('should be defined', function (assert) {
-    assert.expect(1)
-    assert.ok(EventHandler, 'EventHandler is defined')
-  })
-
-  QUnit.test('should trigger event correctly', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    element.addEventListener('foobar', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('should trigger event through jQuery event system', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    $(element).on('foobar', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('should trigger namespaced event through jQuery event system', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-    $(element).on('foobar.namespace', function () {
-      assert.ok(true, 'first listener called')
-    })
-    element.addEventListener('foobar.namespace', function () {
-      assert.ok(true, 'second listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar.namespace')
-  })
-
-  QUnit.test('should mirror preventDefault', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-    $(element).on('foobar.namespace', function (event) {
-      event.preventDefault()
-      assert.ok(true, 'first listener called')
-    })
-    element.addEventListener('foobar.namespace', function (event) {
-      assert.ok(event.defaultPrevented, 'defaultPrevented is true in second listener')
-    })
-
-    EventHandler.trigger(element, 'foobar.namespace')
-  })
-
-  QUnit.test('should mirror preventDefault for native events', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-    document.body.appendChild(element)
-
-    $(element).on('click', function (event) {
-      event.preventDefault()
-      assert.ok(true, 'first listener called')
-    })
-    element.addEventListener('click', function (event) {
-      assert.ok(event.defaultPrevented, 'defaultPrevented is true in second listener')
-    })
-
-    EventHandler.trigger(element, 'click')
-    document.body.removeChild(element)
-  })
-
-  QUnit.test('on should add event listener', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    EventHandler.on(element, 'foobar', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('on should add namespaced event listener', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    EventHandler.on(element, 'foobar.namespace', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar.namespace')
-  })
-
-  QUnit.test('on should add native namespaced event listener', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    document.body.appendChild(element)
-    EventHandler.on(element, 'click.namespace', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'click')
-    document.body.removeChild(element)
-  })
-
-  QUnit.test('on should add delegated event listener', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    var subelement = document.createElement('span')
-    element.appendChild(subelement)
-
-    var anchor = document.createElement('a')
-    element.appendChild(anchor)
-
-    EventHandler.on(element, 'click.namespace', 'a', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.on(element, 'click', 'span', function () {
-      assert.notOk(true, 'listener should not be called')
-    })
-
-    document.body.appendChild(element)
-    EventHandler.trigger(anchor, 'click')
-    document.body.removeChild(element)
-  })
-
-  QUnit.test('on should add delegated event listener if delegated selector differs', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    var subelement = document.createElement('span')
-    element.appendChild(subelement)
-
-    var anchor = document.createElement('a')
-    element.appendChild(anchor)
-
-    var i = 0
-    var handler = function () {
-      i++
-    }
-
-    EventHandler.on(element, 'click', 'a', handler)
-    EventHandler.on(element, 'click', 'span', handler)
-
-    document.body.appendChild(element)
-    EventHandler.trigger(anchor, 'click')
-    EventHandler.trigger(subelement, 'click')
-    document.body.removeChild(element)
-
-    assert.ok(i === 2, 'listeners called')
-  })
-
-  QUnit.test('one should remove the listener after the event', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    EventHandler.one(element, 'foobar', function () {
-      assert.ok(true, 'listener called')
-    })
-
-    EventHandler.trigger(element, 'foobar')
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('off should remove a listener', function (assert) {
-    assert.expect(1)
-
-    var element = document.createElement('div')
-    var handler = function () {
-      assert.ok(true, 'listener called')
-    }
-
-    EventHandler.on(element, 'foobar', handler)
-    EventHandler.trigger(element, 'foobar')
-
-    EventHandler.off(element, 'foobar', handler)
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('off should remove all the listeners', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-
-    EventHandler.on(element, 'foobar', function () {
-      assert.ok(true, 'first listener called')
-    })
-    EventHandler.on(element, 'foobar', function () {
-      assert.ok(true, 'second listener called')
-    })
-    EventHandler.trigger(element, 'foobar')
-
-    EventHandler.off(element, 'foobar')
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('off should remove all the namespaced listeners if namespace is passed', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-
-    EventHandler.on(element, 'foobar.namespace', function () {
-      assert.ok(true, 'first listener called')
-    })
-    EventHandler.on(element, 'foofoo.namespace', function () {
-      assert.ok(true, 'second listener called')
-    })
-    EventHandler.trigger(element, 'foobar.namespace')
-    EventHandler.trigger(element, 'foofoo.namespace')
-
-    EventHandler.off(element, '.namespace')
-    EventHandler.trigger(element, 'foobar.namespace')
-    EventHandler.trigger(element, 'foofoo.namespace')
-  })
-
-  QUnit.test('off should remove the namespaced listeners', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-
-    EventHandler.on(element, 'foobar.namespace', function () {
-      assert.ok(true, 'first listener called')
-    })
-    EventHandler.on(element, 'foofoo.namespace', function () {
-      assert.ok(true, 'second listener called')
-    })
-    EventHandler.trigger(element, 'foobar.namespace')
-
-    EventHandler.off(element, 'foobar.namespace')
-    EventHandler.trigger(element, 'foobar.namespace')
-
-    EventHandler.trigger(element, 'foofoo.namespace')
-  })
-
-  QUnit.test('off should remove the all the namespaced listeners for native events', function (assert) {
-    assert.expect(2)
-
-    var element = document.createElement('div')
-    document.body.appendChild(element)
-
-    EventHandler.on(element, 'click.namespace', function () {
-      assert.ok(true, 'first listener called')
-    })
-    EventHandler.on(element, 'click.namespace2', function () {
-      assert.ok(true, 'second listener called')
-    })
-    EventHandler.trigger(element, 'click')
-
-    EventHandler.off(element, 'click')
-    EventHandler.trigger(element, 'click')
-    document.body.removeChild(element)
-  })
-
-  QUnit.test('off should remove the specified namespaced listeners for native events', function (assert) {
-    assert.expect(3)
-
-    var element = document.createElement('div')
-    document.body.appendChild(element)
-
-    EventHandler.on(element, 'click.namespace', function () {
-      assert.ok(true, 'first listener called')
-    })
-    EventHandler.on(element, 'click.namespace2', function () {
-      assert.ok(true, 'second listener called')
-    })
-    EventHandler.trigger(element, 'click')
-
-    EventHandler.off(element, 'click.namespace')
-    EventHandler.trigger(element, 'click')
-    document.body.removeChild(element)
-  })
-
-  QUnit.test('off should remove a listener registered by .one', function (assert) {
-    assert.expect(0)
-
-    var element = document.createElement('div')
-    var handler = function () {
-      assert.notOk(true, 'listener called')
-    }
-
-    EventHandler.one(element, 'foobar', handler)
-    EventHandler.off(element, 'foobar', handler)
-
-    EventHandler.trigger(element, 'foobar')
-  })
-
-  QUnit.test('off should remove the correct delegated event listener', function (assert) {
-    assert.expect(5)
-
-    var element = document.createElement('div')
-    var subelement = document.createElement('span')
-    element.appendChild(subelement)
-
-    var anchor = document.createElement('a')
-    element.appendChild(anchor)
-
-    var i = 0
-    var handler = function () {
-      i++
-    }
-
-    EventHandler.on(element, 'click', 'a', handler)
-    EventHandler.on(element, 'click', 'span', handler)
-
-    document.body.appendChild(element)
-
-    EventHandler.trigger(anchor, 'click')
-    EventHandler.trigger(subelement, 'click')
-    assert.ok(i === 2, 'first listeners called')
-
-    EventHandler.off(element, 'click', 'span', handler)
-    EventHandler.trigger(subelement, 'click')
-    assert.ok(i === 2, 'removed listener not called')
-
-    EventHandler.trigger(anchor, 'click')
-    assert.ok(i === 3, 'not removed listener called')
-
-    EventHandler.on(element, 'click', 'span', handler)
-    EventHandler.trigger(anchor, 'click')
-    EventHandler.trigger(subelement, 'click')
-    assert.ok(i === 5, 'listener re-registered')
-
-    EventHandler.off(element, 'click', 'span')
-    EventHandler.trigger(subelement, 'click')
-    assert.ok(i === 5, 'listener removed again')
-
-    document.body.removeChild(element)
-  })
-})
diff --git a/js/tests/unit/util/index.js b/js/tests/unit/util/index.js
deleted file mode 100644
index 19d3891d3..000000000
--- a/js/tests/unit/util/index.js
+++ /dev/null
@@ -1,191 +0,0 @@
-$(function () {
-  'use strict'
-
-  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.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.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.equal(shadowRoot, Util.findShadowRoot(shadowRoot))
-    shadowRoot.innerHTML = '<button>Shadow Button</button>'
-    assert.equal(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) {
-      var sandbox = sinon.createSandbox()
-
-      sandbox.replace(document.documentElement, 'attachShadow', function () {
-        // to avoid empty function
-        return $div
-      })
-
-      assert.equal(null, Util.findShadowRoot($div[0]))
-      sandbox.restore()
-    } else {
-      assert.equal(null, Util.findShadowRoot($div[0]))
-    }
-  })
-
-  QUnit.test('noop should return an empty function', function (assert) {
-    assert.expect(1)
-    Util.noop().call()
-    assert.ok(typeof Util.noop() === 'function')
-  })
-
-  QUnit.test('should return jQuery if present', function (assert) {
-    assert.expect(2)
-
-    assert.equal(Util.jQuery, $)
-
-    $.noConflict()
-
-    assert.equal(Util.jQuery, jQuery)
-
-    window.$ = jQuery
-  })
-
-  QUnit.test('Util.emulateTransitionEnd should emulate transition end', function (assert) {
-    assert.expect(1)
-    var $div = $('<div></div>').appendTo($('#qunit-fixture'))
-
-    var spy = sinon.spy($div[0], 'removeEventListener')
-
-    Util.emulateTransitionEnd($div[0], 7)
-
-    assert.ok(spy.notCalled)
-  })
-
-  QUnit.test('Util.makeArray should return empty array on null', function (assert) {
-    assert.expect(1)
-
-    assert.ok(Util.makeArray(null).length === 0)
-  })
-})
diff --git a/js/tests/unit/util/sanitizer.js b/js/tests/unit/util/sanitizer.js
deleted file mode 100644
index 4120f0767..000000000
--- a/js/tests/unit/util/sanitizer.js
+++ /dev/null
@@ -1,51 +0,0 @@
-$(function () {
-  'use strict'
-
-  QUnit.module('sanitizer', {
-    afterEach: function () {
-      $('#qunit-fixture').html('')
-    }
-  })
-
-  QUnit.test('should export a default white list', function (assert) {
-    assert.expect(1)
-
-    assert.ok(Sanitizer.DefaultWhitelist)
-  })
-
-  QUnit.test('should sanitize template by removing tags with XSS', function (assert) {
-    assert.expect(1)
-
-    var template = [
-      '<div>',
-      '  <a href="javascript:alert(7)">Click me</a>',
-      '  <span>Some content</span>',
-      '</div>'
-    ].join('')
-
-    var result = Sanitizer.sanitizeHtml(template, Sanitizer.DefaultWhitelist, null)
-
-    assert.strictEqual(result.indexOf('script'), -1)
-  })
-
-  QUnit.test('should not use native api to sanitize if a custom function passed', function (assert) {
-    assert.expect(2)
-
-    var template = [
-      '<div>',
-      '  <span>Some content</span>',
-      '</div>'
-    ].join('')
-
-    function mySanitize(htmlUnsafe) {
-      return htmlUnsafe
-    }
-
-    var spy = sinon.spy(DOMParser.prototype, 'parseFromString')
-    var result = Sanitizer.sanitizeHtml(template, Sanitizer.DefaultWhitelist, mySanitize)
-
-    assert.strictEqual(result, template)
-    assert.strictEqual(spy.called, false)
-    spy.restore()
-  })
-})