便捷 API

以下 API 是对底层 pointer() 和 keyboard() API 的等效调用的快捷方式。

点击

click()

click(element: Element): Promise<void>

pointer([{target: element}, {keys: '[MouseLeft]', target: element}])

test('click', async () => {
  const onChange = jest.fn()
  const user = userEvent.setup()

  render(<input type="checkbox" onChange={onChange} />)

  const checkbox = screen.getByRole('checkbox')

  await user.click(checkbox)

  expect(onChange).toHaveBeenCalledTimes(1)
  expect(checkbox).toBeChecked()
})

根据 skipHover，第一个操作可能会被跳过。

dblClick()

dblClick(element: Element): Promise<void>

pointer([{target: element}, {keys: '[MouseLeft][MouseLeft]', target: element}])

test('double click', async () => {
  const onChange = jest.fn()
  const user = userEvent.setup()

  render(<input type="checkbox" onChange={onChange} />)

  const checkbox = screen.getByRole('checkbox')

  await user.dblClick(checkbox)

  expect(onChange).toHaveBeenCalledTimes(2)
  expect(checkbox).not.toBeChecked()
})

tripleClick()

tripleClick(element: Element): Promise<void>

pointer([
  {target: element},
  {keys: '[MouseLeft][MouseLeft][MouseLeft]', target: element},
])

test('triple click', async () => {
  const onChange = jest.fn()
  const user = userEvent.setup()

  render(<input type="checkbox" onChange={onChange} />)

  const checkbox = screen.getByRole('checkbox')

  await user.tripleClick(checkbox)

  expect(onChange).toHaveBeenCalledTimes(3)
  expect(checkbox).toBeChecked()
})

鼠标移动

hover()

hover(element: Element): Promise<void>

pointer({target: element})

test('hover/unhover', async () => {
  const user = userEvent.setup()
  render(<div>Hover</div>)

  const hoverBox = screen.getByText('Hover')
  let isHover = false

  hoverBox.addEventListener('mouseover', () => {
    isHover = true
  })
  hoverBox.addEventListener('mouseout', () => {
    isHover = false
  })

  expect(isHover).toBeFalsy()

  await user.hover(hoverBox)

  expect(isHover).toBeTruthy()

  await user.unhover(hoverBox)

  expect(isHover).toBeFalsy()
})

unhover()

unhover(element: Element): Promise<void>

pointer({target: element.ownerDocument.body})

键盘

tab()

tab(options: {shift?: boolean}): Promise<void>

// without shift
keyboard('{Tab}')
// with shift=true
keyboard('{Shift>}{Tab}{/Shift}')
// with shift=false
keyboard('[/ShiftLeft][/ShiftRight]{Tab}')

test('tab', async () => {
  const user = userEvent.setup()
  render(
    <div>
      <input type="checkbox" />
      <input type="radio" />
      <input type="number" />
    </div>,
  )

  const checkbox = screen.getByRole('checkbox')
  const radio = screen.getByRole('radio')
  const number = screen.getByRole('spinbutton')

  expect(document.body).toHaveFocus()

  await user.tab()

  expect(checkbox).toHaveFocus()

  await user.tab()

  expect(radio).toHaveFocus()

  await user.tab()

  expect(number).toHaveFocus()

  await user.tab()

  // cycle goes back to the body element
  expect(document.body).toHaveFocus()

  await user.tab()

  expect(checkbox).toHaveFocus()
})