bootstrap-vue/src/components/toast/toast.spec.js

BootstrapVue, with over 40 plugins and more than 75 custom components, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated WAI-ARIA accessibility markup.

import { mount } from '@vue/test-utils'
import { waitNT, waitRAF } from '../../../tests/utils'
import BToast from './toast'

describe('b-toast', () => {
  beforeAll(() => {
    // Prevent multiple Vue warnings in tests
    jest.spyOn(console, 'warn').mockImplementation(() => {})
  })

  afterAll(() => {
    console.warn.mockClear()
  })

  it('has expected structure', async () => {
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: true,
        visible: true,
        title: 'title'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('b-toast')
    expect(wrapper.classes()).toContain('b-toast-prepend')
    expect(wrapper.classes().length).toBe(2)
    expect(wrapper.attributes('role')).toEqual('alert')
    expect(wrapper.attributes('aria-live')).toEqual('assertive')
    expect(wrapper.attributes('aria-atomic')).toEqual('true')

    expect(wrapper.find('.toast').exists()).toBe(true)
    const $toast = wrapper.find('.toast')
    expect($toast.is('div')).toBe(true)
    expect($toast.classes()).toContain('toast')
    expect($toast.attributes('tabindex')).toEqual('0')

    expect($toast.find('.toast-header').exists()).toBe(true)
    const $header = $toast.find('.toast-header')
    expect($header.is('header')).toBe(true)
    expect($header.classes().length).toBe(1)
    expect($header.find('strong').exists()).toBe(true)
    expect($header.find('strong').text()).toEqual('title')
    expect($header.find('strong').classes()).toContain('mr-2')
    expect($header.find('button').exists()).toBe(true)
    expect($header.find('button').classes()).toContain('close')
    expect($header.find('button').classes()).toContain('ml-auto')
    expect($header.find('button').classes()).toContain('mb-1')

    expect($toast.find('.toast-body').exists()).toBe(true)
    const $body = $toast.find('.toast-body')
    expect($body.is('div')).toBe(true)
    expect($body.classes().length).toBe(1)
    expect($body.text()).toEqual('content')

    wrapper.destroy()
  })

  it('visible prop works', async () => {
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: true,
        visible: false,
        title: 'title',
        href: '#foobar'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.element.nodeType).toBe(Node.COMMENT_NODE)

    expect(wrapper.emitted('show')).not.toBeDefined()
    expect(wrapper.emitted('shown')).not.toBeDefined()
    expect(wrapper.emitted('hide')).not.toBeDefined()
    expect(wrapper.emitted('hidden')).not.toBeDefined()

    wrapper.setProps({
      visible: true
    })

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)

    expect(wrapper.emitted('show')).toBeDefined()
    expect(wrapper.emitted('shown')).toBeDefined()
    expect(wrapper.emitted('hide')).not.toBeDefined()
    expect(wrapper.emitted('hidden')).not.toBeDefined()
    expect(wrapper.emitted('show').length).toBe(1)
    expect(wrapper.emitted('shown').length).toBe(1)

    wrapper.setProps({
      visible: false
    })

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.element.nodeType).toBe(Node.COMMENT_NODE)

    expect(wrapper.emitted('show')).toBeDefined()
    expect(wrapper.emitted('shown')).toBeDefined()
    expect(wrapper.emitted('hide')).toBeDefined()
    expect(wrapper.emitted('hidden')).toBeDefined()
    expect(wrapper.emitted('show').length).toBe(1)
    expect(wrapper.emitted('shown').length).toBe(1)
    expect(wrapper.emitted('hide').length).toBe(1)
    expect(wrapper.emitted('hidden').length).toBe(1)

    wrapper.destroy()
  })

  it('alert with link closes on click works', async () => {
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: true,
        visible: true,
        title: 'title',
        href: '#foobar'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)

    const $body = wrapper.find('.toast-body')
    expect($body.is('a')).toBe(true)
    expect($body.attributes('href')).toEqual('#foobar')

    expect(wrapper.emitted('hide')).not.toBeDefined()
    expect(wrapper.emitted('hidden')).not.toBeDefined()
    expect(wrapper.emitted('change')).not.toBeDefined()

    $body.trigger('click')

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).not.toBe(true)
    expect(wrapper.element.nodeType).toBe(Node.COMMENT_NODE)

    expect(wrapper.emitted('hide')).toBeDefined()
    expect(wrapper.emitted('hidden')).toBeDefined()
    expect(wrapper.emitted('change')).toBeDefined()

    wrapper.destroy()
  })

  it('auto-hide works', async () => {
    jest.useFakeTimers()
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: false,
        visible: true,
        title: 'title'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.vm.timer).not.toEqual(null)

    jest.runOnlyPendingTimers()

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).not.toBe(true)
    expect(wrapper.element.nodeType).toBe(Node.COMMENT_NODE)
    expect(wrapper.vm.timer).toBe(null)

    wrapper.destroy()
  })

  it('hover pause works', async () => {
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: false,
        visible: true,
        title: 'title'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.vm.timer).not.toEqual(null)
    await waitNT(wrapper.vm)
    await waitRAF()

    wrapper.trigger('mouseenter')
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.vm.timer).toEqual(null)

    wrapper.trigger('mouseleave')
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.vm.timer).not.toEqual(null)

    wrapper.destroy()
  })

  it('hover pause has no effect when no-hover-pause is set', async () => {
    const wrapper = mount(BToast, {
      attachToDocument: true,
      stubs: {
        transition: false
      },
      propsData: {
        static: true,
        noAutoHide: false,
        noHoverPause: true,
        visible: true,
        title: 'title'
      },
      slots: {
        default: 'content'
      }
    })

    expect(wrapper.isVueInstance()).toBe(true)

    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.vm.timer).not.toEqual(null)
    await waitNT(wrapper.vm)
    await waitRAF()

    wrapper.trigger('mouseenter')
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.vm.timer).not.toEqual(null)

    wrapper.trigger('mouseleave')
    await waitNT(wrapper.vm)
    await waitRAF()

    expect(wrapper.vm.timer).not.toEqual(null)

    wrapper.destroy()
  })
})