import { act, renderHook } from '@testing-library/react'
import { useCurrentState } from 'components'

describe('UseCurrentState', () => {
  it('should work correctly', () => {
    const { result } = renderHook(() => useCurrentState(''))
    expect(result.current[0]).toEqual('')

    act(() => result.current[1]('test'))
    expect(result.current[0]).toEqual('test')
    expect(result.current[2].current).toEqual('test')
  })

  it('functional initial mode should be supported', () => {
    const { result } = renderHook(() => useCurrentState(() => 1 + 1))
    expect(result.current[0]).toEqual(2)
    act(() => result.current[1](0))
    expect(result.current[0]).toEqual(0)
    expect(result.current[2].current).toEqual(0)
  })

  it('functional update mode should be supported', () => {
    const { result } = renderHook(() => useCurrentState(0))
    expect(result.current[0]).toEqual(0)

    act(() => result.current[1]((pre) => pre + 10))
    expect(result.current[0]).toEqual(10)
    expect(result.current[2].current).toEqual(10)
  })
})