1 files changed, 259 insertions, 0 deletions
diff --git a/js/tests/unit/alert.spec.js b/js/tests/unit/alert.spec.js
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+++ b/js/tests/unit/alert.spec.js
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+import Alert from '../../src/alert'
+import { getTransitionDurationFromElement } from '../../src/util/index'
+import { clearFixture, getFixture, jQueryMock } from '../helpers/fixture'
+
+describe('Alert', () => {
+  let fixtureEl
+
+  beforeAll(() => {
+    fixtureEl = getFixture()
+  })
+
+  afterEach(() => {
+    clearFixture()
+  })
+
+  it('should take care of element either passed as a CSS selector or DOM element', () => {
+    fixtureEl.innerHTML = '<div class="alert"></div>'
+
+    const alertEl = fixtureEl.querySelector('.alert')
+    const alertBySelector = new Alert('.alert')
+    const alertByElement = new Alert(alertEl)
+
+    expect(alertBySelector._element).toEqual(alertEl)
+    expect(alertByElement._element).toEqual(alertEl)
+  })
+
+  it('should return version', () => {
+    expect(Alert.VERSION).toEqual(jasmine.any(String))
+  })
+
+  describe('DATA_KEY', () => {
+    it('should return plugin data key', () => {
+      expect(Alert.DATA_KEY).toEqual('bs.alert')
+    })
+  })
+
+  describe('data-api', () => {
+    it('should close an alert without instantiating it manually', () => {
+      fixtureEl.innerHTML = [
+        '<div class="alert">',
+        '  <button type="button" data-bs-dismiss="alert">x</button>',
+        '</div>'
+      ].join('')
+
+      const button = document.querySelector('button')
+
+      button.click()
+      expect(document.querySelectorAll('.alert')).toHaveSize(0)
+    })
+
+    it('should close an alert without instantiating it manually with the parent selector', () => {
+      fixtureEl.innerHTML = [
+        '<div class="alert">',
+        '  <button type="button" data-bs-target=".alert" data-bs-dismiss="alert">x</button>',
+        '</div>'
+      ].join('')
+
+      const button = document.querySelector('button')
+
+      button.click()
+      expect(document.querySelectorAll('.alert')).toHaveSize(0)
+    })
+  })
+
+  describe('close', () => {
+    it('should close an alert', () => {
+      return new Promise(resolve => {
+        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(document.querySelectorAll('.alert')).toHaveSize(0)
+          expect(spy).not.toHaveBeenCalled()
+          resolve()
+        })
+
+        alert.close()
+      })
+    })
+
+    it('should close alert with fade class', () => {
+      return new Promise(resolve => {
+        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(document.querySelectorAll('.alert')).toHaveSize(0)
+          resolve()
+        })
+
+        alert.close()
+      })
+    })
+
+    it('should not remove alert if close event is prevented', () => {
+      return new Promise((resolve, reject) => {
+        fixtureEl.innerHTML = '<div class="alert"></div>'
+
+        const getAlert = () => document.querySelector('.alert')
+        const alertEl = getAlert()
+        const alert = new Alert(alertEl)
+
+        alertEl.addEventListener('close.bs.alert', event => {
+          event.preventDefault()
+          setTimeout(() => {
+            expect(getAlert()).not.toBeNull()
+            resolve()
+          }, 10)
+        })
+
+        alertEl.addEventListener('closed.bs.alert', () => {
+          reject(new Error('should not fire closed event'))
+        })
+
+        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)).not.toBeNull()
+
+      alert.dispose()
+
+      expect(Alert.getInstance(alertEl)).toBeNull()
+    })
+  })
+
+  describe('jQueryInterface', () => {
+    it('should handle config passed and toggle existing alert', () => {
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = fixtureEl.querySelector('.alert')
+      const alert = new Alert(alertEl)
+
+      const spy = spyOn(alert, 'close')
+
+      jQueryMock.fn.alert = Alert.jQueryInterface
+      jQueryMock.elements = [alertEl]
+
+      jQueryMock.fn.alert.call(jQueryMock, 'close')
+
+      expect(spy).toHaveBeenCalled()
+    })
+
+    it('should create new alert instance and call close', () => {
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = fixtureEl.querySelector('.alert')
+
+      jQueryMock.fn.alert = Alert.jQueryInterface
+      jQueryMock.elements = [alertEl]
+
+      expect(Alert.getInstance(alertEl)).toBeNull()
+      jQueryMock.fn.alert.call(jQueryMock, 'close')
+
+      expect(fixtureEl.querySelector('.alert')).toBeNull()
+    })
+
+    it('should just create an alert instance without calling close', () => {
+      fixtureEl.innerHTML = '<div class="alert"></div>'
+
+      const alertEl = fixtureEl.querySelector('.alert')
+
+      jQueryMock.fn.alert = Alert.jQueryInterface
+      jQueryMock.elements = [alertEl]
+
+      jQueryMock.fn.alert.call(jQueryMock)
+
+      expect(Alert.getInstance(alertEl)).not.toBeNull()
+      expect(fixtureEl.querySelector('.alert')).not.toBeNull()
+    })
+
+    it('should throw an error on undefined method', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const action = 'undefinedMethod'
+
+      jQueryMock.fn.alert = Alert.jQueryInterface
+      jQueryMock.elements = [div]
+
+      expect(() => {
+        jQueryMock.fn.alert.call(jQueryMock, action)
+      }).toThrowError(TypeError, `No method named "${action}"`)
+    })
+
+    it('should throw an error on protected method', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const action = '_getConfig'
+
+      jQueryMock.fn.alert = Alert.jQueryInterface
+      jQueryMock.elements = [div]
+
+      expect(() => {
+        jQueryMock.fn.alert.call(jQueryMock, action)
+      }).toThrowError(TypeError, `No method named "${action}"`)
+    })
+  })
+
+  describe('getInstance', () => {
+    it('should return alert instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const alert = new Alert(div)
+
+      expect(Alert.getInstance(div)).toEqual(alert)
+      expect(Alert.getInstance(div)).toBeInstanceOf(Alert)
+    })
+
+    it('should return null when there is no alert instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Alert.getInstance(div)).toBeNull()
+    })
+  })
+
+  describe('getOrCreateInstance', () => {
+    it('should return alert instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+      const alert = new Alert(div)
+
+      expect(Alert.getOrCreateInstance(div)).toEqual(alert)
+      expect(Alert.getInstance(div)).toEqual(Alert.getOrCreateInstance(div, {}))
+      expect(Alert.getOrCreateInstance(div)).toBeInstanceOf(Alert)
+    })
+
+    it('should return new instance when there is no alert instance', () => {
+      fixtureEl.innerHTML = '<div></div>'
+
+      const div = fixtureEl.querySelector('div')
+
+      expect(Alert.getInstance(div)).toBeNull()
+      expect(Alert.getOrCreateInstance(div)).toBeInstanceOf(Alert)
+    })
+  })
+})