//-----------------------------------------------------------------------
    // parse weeks
    //-----------------------------------------------------------------------
    @Test(dataProvider="week")
    public void test_parse_weeks(LocalDate date, DayOfWeek dow, int week, int wby) {
        DateTimeFormatter f = new DateTimeFormatterBuilder()
                .appendValue(IsoFields.WEEK_BASED_YEAR).appendLiteral('-')
                .appendValue(IsoFields.WEEK_OF_WEEK_BASED_YEAR).appendLiteral('-')
                .appendValue(DAY_OF_WEEK).toFormatter();
        LocalDate parsed = LocalDate.parse(wby + "-" + week + "-" + dow.getValue(), f);
        assertEquals(parsed, date);