/// <summary> /// Checks that each day from the given start year to the end year (inclusive) is equal /// between the BCL and the Noda Time calendar. Additionally, the number of days in each month and year /// and the number of months (and leap year status) in each year is checked. /// </summary> internal static void AssertEquivalent(Calendar bcl, CalendarSystem noda, int fromYear, int toYear) { // We avoid asking the BCL to create a DateTime on each iteration, simply // because the BCL implementation is so slow. Instead, we just check at the start of each month that // we're at the date we expect. DateTime bclDate = bcl.ToDateTime(fromYear, 1, 1, 0, 0, 0, 0); for (int year = fromYear; year <= toYear; year++) { Assert.AreEqual(bcl.GetDaysInYear(year), noda.GetDaysInYear(year), "Year: {0}", year); Assert.AreEqual(bcl.GetMonthsInYear(year), noda.GetMonthsInYear(year), "Year: {0}", year); for (int month = 1; month <= noda.GetMonthsInYear(year); month++) { // Sanity check at the start of each month. Even this is surprisingly slow. // (These three tests make up about 20% of the total execution time for the test.) Assert.AreEqual(year, bcl.GetYear(bclDate)); Assert.AreEqual(month, bcl.GetMonth(bclDate)); Assert.AreEqual(1, bcl.GetDayOfMonth(bclDate)); Assert.AreEqual(bcl.GetDaysInMonth(year, month), noda.GetDaysInMonth(year, month), "Year: {0}; Month: {1}", year, month); Assert.AreEqual(bcl.IsLeapYear(year), noda.IsLeapYear(year), "Year: {0}", year); for (int day = 1; day <= noda.GetDaysInMonth(year, month); day++) { LocalDate nodaDate = new LocalDate(year, month, day, noda); Assert.AreEqual(bclDate, nodaDate.ToDateTimeUnspecified(), "Original calendar system date: {0:yyyy-MM-dd}", nodaDate); Assert.AreEqual(nodaDate, LocalDate.FromDateTime(bclDate, noda)); Assert.AreEqual(year, nodaDate.Year); Assert.AreEqual(month, nodaDate.Month); Assert.AreEqual(day, nodaDate.Day); bclDate = bclDate.AddDays(1); } } } }