bootstrap-vue/src/components/breadcrumb/breadcrumb-link.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 { BBreadcrumbLink } from './breadcrumb-link'

describe('breadcrumb-link', () => {
  it('has default classes and structure', async () => {
    const wrapper = mount(BBreadcrumbLink)
    expect(wrapper.is('a')).toBe(true)
    expect(wrapper.attributes('href')).toBeDefined()
    expect(wrapper.attributes('href')).toBe('#')
    expect(wrapper.classes().length).toBe(0)
    expect(wrapper.attributes('aria-current')).not.toBeDefined()
    expect(wrapper.text()).toBe('')
  })

  it('has content from default slot', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      slots: {
        default: 'foobar'
      }
    })
    expect(wrapper.text()).toBe('foobar')
  })

  it('has content from text prop', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        text: 'foobar'
      }
    })
    expect(wrapper.text()).toBe('foobar')
  })

  it('has content from html prop', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        html: 'foobar'
      }
    })
    expect(wrapper.text()).toBe('foobar')
  })

  it('has attribute aria-current when active', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        active: true
      }
    })
    expect(wrapper.is('span')).toBe(true)
    expect(wrapper.attributes('href')).not.toBeDefined()
    expect(wrapper.attributes('aria-current')).toBe('location')
    expect(wrapper.classes().length).toBe(0)
  })

  it('has attribute aria-current with custom value when active', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        active: true,
        ariaCurrent: 'foobar'
      }
    })
    expect(wrapper.is('span')).toBe(true)
    expect(wrapper.attributes('aria-current')).toBe('foobar')
    expect(wrapper.attributes('href')).not.toBeDefined()
    expect(wrapper.classes().length).toBe(0)
  })

  it('renders link when href is set', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        href: '/foo/bar'
      }
    })
    expect(wrapper.is('a')).toBe(true)
    expect(wrapper.attributes('href')).toBeDefined()
    expect(wrapper.attributes('href')).toBe('/foo/bar')
    expect(wrapper.attributes('aria-current')).not.toBeDefined()
    expect(wrapper.classes().length).toBe(0)
  })

  it('does not render a link when href is set and active', async () => {
    const wrapper = mount(BBreadcrumbLink, {
      propsData: {
        active: true,
        href: '/foo/bar'
      }
    })
    expect(wrapper.is('span')).toBe(true)
    expect(wrapper.attributes('href')).not.toBeDefined()
    expect(wrapper.attributes('aria-current')).toBeDefined()
    expect(wrapper.attributes('aria-current')).toBe('location')
    expect(wrapper.classes().length).toBe(0)
  })
})