bootstrap-vue/src/components/button-group/button-group.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 BButtonGroup from './button-group'

describe('button-group', () => {
  it('has expected default structure', async () => {
    const wrapper = mount(BButtonGroup)
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group')
    expect(wrapper.classes().length).toBe(1)
    expect(wrapper.attributes('role')).toBeDefined()
    expect(wrapper.attributes('role')).toBe('group')
    expect(wrapper.text()).toBe('')
  })

  it('should render default slot', async () => {
    const wrapper = mount(BButtonGroup, {
      slots: {
        default: '<span>foobar</span>'
      }
    })
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group')
    expect(wrapper.classes().length).toBe(1)
    expect(wrapper.attributes('role')).toBeDefined()
    expect(wrapper.attributes('role')).toBe('group')
    expect(wrapper.find('span').exists()).toBe(true)
    expect(wrapper.text()).toBe('foobar')
  })

  it('should apply vertical class', async () => {
    const wrapper = mount(BButtonGroup, {
      propsData: {
        vertical: true
      }
    })
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group-vertical')
    expect(wrapper.classes()).not.toContain('btn-group')
    expect(wrapper.classes().length).toBe(1)
  })

  it('should apply size class', async () => {
    const wrapper = mount(BButtonGroup, {
      propsData: {
        size: 'sm'
      }
    })
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group')
    expect(wrapper.classes()).toContain('btn-group-sm')
    expect(wrapper.classes().length).toBe(2)
  })

  it('should apply size class when vertical', async () => {
    const wrapper = mount(BButtonGroup, {
      propsData: {
        size: 'sm',
        vertical: true
      }
    })
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group-sm')
    expect(wrapper.classes()).toContain('btn-group-vertical')
    expect(wrapper.classes()).not.toContain('btn-group')
    expect(wrapper.classes().length).toBe(2)
  })

  it('has custom role when aria-role prop set', async () => {
    const wrapper = mount(BButtonGroup, {
      propsData: {
        ariaRole: 'foobar'
      }
    })
    expect(wrapper.is('div')).toBe(true)
    expect(wrapper.classes()).toContain('btn-group')
    expect(wrapper.classes().length).toBe(1)
    expect(wrapper.attributes('role')).toBeDefined()
    expect(wrapper.attributes('role')).toBe('foobar')
  })
})