message: Increase test code coverage for getWeekOfMonth
diff: @@ -75,6 +75,14 @@ describe('getWeekOfMonth', function () {
  assert.throws(getWeekOfMonth.bind(null), TypeError)
  })
  + it('throws RangeError exception weekStartsOn is NaN', function () {
  + try {
  + getWeekOfMonth(new Date(2017, 10 /* Nov */, 1), { weekStartsOn: NaN })
  + } catch (e) {
  + assert(e instanceof RangeError)
  + }
  + })
  +
  it('returns the week of the month of the given date, when the given date is sunday', function () {
  var result = getWeekOfMonth(new Date(2019, 4 /* May */, 5), {
  weekStartsOn: 1,
  