bootstrap-vue/src/utils/bv-event.class.spec.js

BootstrapVue, with more than 85 custom components, over 45 plugins, several custom directives, and over 300 icons, provides one of the most comprehensive implementations of Bootstrap v4 components and grid system for Vue.js. With extensive and automated W

import { BvEvent } from './bv-event.class'

describe('utils/BvEvent class', () => {
  it('works', async () => {
    const evt = new BvEvent('foobar')
    expect(evt).toBeInstanceOf(BvEvent)
    expect(evt.type).toBe('foobar')
  })

  it('throws exception if no type given', async () => {
    let evt = null
    let failed = false
    try {
      evt = new BvEvent()
    } catch (e) {
      failed = true
    }
    expect(evt).not.toBeInstanceOf(BvEvent)
    expect(evt).toBe(null)
    expect(failed).toBe(true)
  })

  it('supports cancelable events', async () => {
    const evt = new BvEvent('foobar', {
      cancelable: true
    })
    expect(evt).toBeInstanceOf(BvEvent)
    expect(evt.type).toBe('foobar')
    expect(evt.cancelable).toBe(true)
    expect(evt.defaultPrevented).toBe(false)
    evt.preventDefault()
    expect(evt.defaultPrevented).toBe(true)
  })

  it('supports non cancelable events', async () => {
    const evt = new BvEvent('foobar', {
      cancelable: false
    })
    expect(evt).toBeInstanceOf(BvEvent)
    expect(evt.type).toBe('foobar')
    expect(evt.cancelable).toBe(false)
    expect(evt.defaultPrevented).toBe(false)
    evt.preventDefault()
    expect(evt.defaultPrevented).toBe(false)
  })

  it('supports built in properties', async () => {
    const evt = new BvEvent('foobar', {
      target: 'baz'
    })
    expect(evt).toBeInstanceOf(BvEvent)
    expect(evt.type).toBe('foobar')
    expect(evt.cancelable).toBe(true)
    expect(evt.target).toBe('baz')
  })

  it('supports custom properties', async () => {
    const evt = new BvEvent('foobar', {
      custom: 123
    })
    expect(evt).toBeInstanceOf(BvEvent)
    expect(evt.type).toBe('foobar')
    expect(evt.cancelable).toBe(true)
    expect(evt.custom).toBe(123)
  })
})