bootstrap-vue/src/components/nav/nav-item.spec.js

BootstrapVue, with over 40 plugins and more than 80 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 { BLink } from '../link/link'
import { BNavItem } from './nav-item'

describe('nav-item', () => {
  it('has expected default structure', async () => {
    const wrapper = mount(BNavItem)
    expect(wrapper.is('li')).toBe(true)
    expect(wrapper.classes()).toContain('nav-item')
    expect(wrapper.classes().length).toBe(1)

    const link = wrapper.find('a')
    expect(link).toBeDefined()
    expect(link.is('a')).toBe(true)
    expect(link.is(BLink)).toBe(true)
    expect(link.classes()).toContain('nav-link')
    expect(link.classes().length).toBe(1)
    expect(link.attributes('href')).toBeDefined()
    expect(link.attributes('href')).toBe('#')
    expect(link.attributes('role')).not.toBeDefined()
  })

  it('has attrs on link when link-attrs set', async () => {
    const wrapper = mount(BNavItem, {
      context: {
        props: {
          linkAttrs: { role: 'tab' }
        }
      }
    })
    expect(wrapper.attributes('role')).not.toBeDefined()
    const link = wrapper.find(BLink)
    expect(link).toBeDefined()
    expect(link.attributes('role')).toBeDefined()
    expect(link.attributes('role')).toBe('tab')
  })

  it('has custom classes on link when link-classes set', async () => {
    const wrapper = mount(BNavItem, {
      context: {
        props: {
          linkClasses: ['foo', { bar: true }]
        }
      }
    })
    const link = wrapper.find(BLink)
    expect(link).toBeDefined()
    expect(link.classes()).toContain('foo')
    expect(link.classes()).toContain('bar')
    expect(link.classes()).toContain('nav-link')
  })

  it('has class "disabled" on link when disabled set', async () => {
    const wrapper = mount(BNavItem, {
      context: {
        props: { disabled: true }
      }
    })
    const link = wrapper.find(BLink)
    expect(link).toBeDefined()
    expect(link.classes()).toContain('disabled')
  })

  it('emits click event when clicked', async () => {
    const spy = jest.fn()
    const wrapper = mount(BNavItem, {
      context: {
        on: { click: spy }
      }
    })
    expect(spy).not.toHaveBeenCalled()
    wrapper.trigger('click')
    expect(spy).not.toHaveBeenCalled()

    const link = wrapper.find(BLink)
    expect(link).toBeDefined()
    link.trigger('click')
    expect(spy).toHaveBeenCalled()
  })

  it('does not emit a click event when clicked and disabled', async () => {
    const spy = jest.fn()
    const wrapper = mount(BNavItem, {
      context: {
        props: { disabled: true },
        on: { click: spy }
      }
    })
    expect(spy).not.toHaveBeenCalled()
    wrapper.trigger('click')
    expect(spy).not.toHaveBeenCalled()

    const link = wrapper.find(BLink)
    expect(link).toBeDefined()
    link.trigger('click')
    expect(spy).not.toHaveBeenCalled()
  })
})