/* eslint-env mocha */

import assert from 'assert'
import eachWeekendOfMonth from '.'

describe('eachWeekendOfMonth', () => {
  it('returns all weekends of the given month', () => {
    const result = eachWeekendOfMonth(new Date(2022, 1, 20))
    assert.deepStrictEqual(result, [
      new Date(2022, 1, 5),
      new Date(2022, 1, 6),
      new Date(2022, 1, 12),
      new Date(2022, 1, 13),
      new Date(2022, 1, 19),
      new Date(2022, 1, 20),
      new Date(2022, 1, 26),
      new Date(2022, 1, 27),
    ])
  })

  it('throws TypeError exception when passed less than 1 argument', () => {
    // @ts-expect-error
    assert.throws(eachWeekendOfMonth.bind(null), TypeError)
  })

  it('throws RangeError when the expected year is NaN', () => {
    assert.throws(
      eachWeekendOfMonth.bind(
        null,
        // @ts-expect-error
        NaN
      ),
      RangeError
    )
  })

  it('throws RangeError when the expected year is an Invalid Date', () => {
    assert.throws(eachWeekendOfMonth.bind(null, new Date(NaN)), RangeError)
  })
})