element-plus/packages/space/__tests__/space.spec.ts

import { mount } from '@vue/test-utils'
import { nextTick, h } from 'vue'
import Space from '../src/index'

const AXIOM = 'Rem is the best girl'

describe('Space.vue', () => {
  test('render test', async () => {
    const wrapper = mount(Space, {
      slots: {
        default: AXIOM,
      },
    })
    expect(wrapper.text()).toEqual(AXIOM)

    await wrapper.setProps({
      direction: 'vertical',
      wrap: true,
    })

    expect(wrapper.find('.el-space--vertical').exists()).toBe(true)
    expect(wrapper.find('.el-space').attributes('style')).toContain('flex-wrap: wrap')
  })

  test('sizes', async () => {
    const warnHandler = jest.fn()
    const wrapper = mount(Space, {
      slots: {
        default: () => Array.from({ length: 2 }).map((_, idx) => {
          return `test${idx}`
        }),
      },
      props: {
        size: 'large',
      },
      global: {
        config: {
          warnHandler,
        },
      },
    })

    await nextTick()
    expect(wrapper.find('.el-space__item').attributes('style')).toContain('margin-right: 16px')

    await wrapper.setProps({
      size: 30,
    })

    await nextTick()
    expect(wrapper.find('.el-space__item').attributes('style')).toContain('margin-right: 30px')

    await wrapper.setProps({
      size: [10, 20],
    })

    expect(wrapper.find('.el-space__item').attributes('style')).toContain('margin-right: 10px')
    expect(wrapper.find('.el-space__item').attributes('style')).toContain('padding-bottom: 20px')
    await wrapper.setProps({
      size: 'unknown',
    })

    expect(warnHandler).toHaveBeenCalledTimes(1)

    expect(wrapper.find('.el-space__item').attributes('style')).toContain('margin-right: 8px')
  })


  test('should render with spacer', async () => {
    const stringSpacer = '|'
    const wrapper = mount(Space, {
      slots: {
        default: () => Array.from({ length: 2 }).map((_, idx) => {
          return `test${idx}`
        }),
      },
      props: {
        size: 'large',
        spacer: stringSpacer,
      },
    })

    await nextTick()
    expect(wrapper.element.children).toHaveLength(3)

    expect(wrapper.text()).toContain(stringSpacer)

    // 2 elements expecting only 1 spacer
    expect(wrapper.text().split(stringSpacer)).toHaveLength(2)
    const testSpacerCls = 'test-spacer-cls'

    // vnode type spacer
    await wrapper.setProps({
      spacer: h('div', { class: testSpacerCls }, ''),
    })

    expect(wrapper.findAll(`.${testSpacerCls}`)).toHaveLength(1)
    expect(wrapper.element.children).toHaveLength(3)
  })

  test('fill', async () => {
    const wrapper = mount(Space, {
      slots: {
        default: () =>
          Array.from({ length: 2 }).map((_, idx) => {
            return `test${idx}`
          }),
      },
      props: {
        fill: true,
      },
    })

    await nextTick()
    expect(wrapper.find('.el-space').attributes('style')).toContain(
      'flex-wrap: wrap',
    )
    expect(wrapper.find('.el-space__item').attributes('style')).toContain(
      'flex-grow: 1',
    )
    expect(wrapper.find('.el-space__item').attributes('style')).toContain(
      'min-width: 100%',
    )

    // custom fill ratio
    await wrapper.setProps({
      fillRatio: 50,
    })

    await nextTick()
    expect(wrapper.find('.el-space__item').attributes('style')).toContain(
      'min-width: 50%',
    )
  })
})