import React from 'react'
import { render, screen, within } from '@testing-library/react'
import { CalendarSingle } from '../CalendarSingle'
import { isSelectingDayInCalendar } from './isSelectingDayInCalendar'

describe('isSelectingDayInCalendar', () => {
  it('returns true when target is a Calendar day', () => {
    render(<CalendarSingle defaultMonth={new Date('2022-02-01')} />)
    const targetMonth = screen.getByRole('grid', { name: 'February 2022' })
    const targetDay = within(targetMonth).getByRole('gridcell', { name: '1' })
    const targetBtn = within(targetDay).getByRole('button')
    expect(isSelectingDayInCalendar(targetBtn)).toBe(true)
  })

  it('returns false when target is not a Calendar day', () => {
    render(<CalendarSingle defaultMonth={new Date('2022-02-01')} />)
    const notDayElement = screen.getByText('February 2022')
    expect(isSelectingDayInCalendar(notDayElement)).toBe(false)
  })
})