/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import { render } from '@testing-library/react'
import * as React from 'react'

import mergeRefs from '..'

describe('modules/mergeRefs', () => {
  test('merges refs of different types', () => {
    const ref = React.createRef(null)
    let functionRefValue = null
    let hookRef
    function Component() {
      const functionRef = (x) => {
        functionRefValue = x
      }
      hookRef = React.useRef(null)
      return <div ref={mergeRefs(ref, hookRef, functionRef)} />
    }

    render(<Component />)

    expect(ref.current).toBeInstanceOf(HTMLDivElement)
    expect(hookRef.current).toBeInstanceOf(HTMLDivElement)
    expect(functionRefValue).toBeInstanceOf(HTMLDivElement)
  })
})