public void TestFromJulianDay()
{
var calendar = WesternCalendar.Create(1954, Month.June, 30);
var weekday = WeekdayMethods.From(calendar);
Assert.AreEqual(Weekday.Wednesday, weekday);
}
public void TestAddTenThousandDays()
{
var startdate = WesternCalendar.Create(1991, Month.July, 11.0);
var enddate = startdate + 10000.0;
var date = enddate.Date;
Assert.AreEqual(2018, date.Year);
Assert.AreEqual(Month.November, date.Month);
Assert.AreEqual(26.0, date.Day);
}
public void TestCalendarSubtraction()
{
var halley1 = WesternCalendar.Create(1910, Month.April, 20.0);
var halley2 = WesternCalendar.Create(1986, Month.Febuary, 9.0);
double days = halley2 - halley1;
double expected = 27689.0;
Assert.AreEqual(expected, days);
}
public void TestCalendarChangeOver_15821014()
{
try
{
WesternCalendar.Create(1582, Month.October, 14.0);
Assert.Fail("Expected argument out of range exception to occur");
}
catch (ArgumentOutOfRangeException)
{
}
}
public void TestCalendarChangeOverInterval()
{
var d1 = WesternCalendar.Create(1582, Month.October, 4.0);
var d2 = WesternCalendar.Create(1582, Month.October, 15.0);
var diff = d2 - d1;
Assert.AreEqual(1.0, diff);
Assert.AreEqual(2299159.5, d1.JulianDay);
Assert.AreEqual(2299160.5, d2.JulianDay);
}
public void TestFromJulianDay()
{
Date date;
date = WesternCalendar.FromJulianDay(2436116.31);
TestDate(date, 1957, Month.October, 4.81);
date = WesternCalendar.FromJulianDay(1842713.0);
TestDate(date, 333, Month.January, 27.5);
date = WesternCalendar.FromJulianDay(1507900.13);
TestDate(date, -584, Month.May, 28.63);
}
public void TestLeapYear()
{
Assert.IsTrue(WesternCalendar.IsLeapYear(900));
Assert.IsTrue(WesternCalendar.IsLeapYear(1236));
Assert.IsTrue(WesternCalendar.IsLeapYear(1500));
Assert.IsTrue(WesternCalendar.IsLeapYear(1600));
Assert.IsTrue(WesternCalendar.IsLeapYear(1976));
Assert.IsTrue(WesternCalendar.IsLeapYear(2000));
Assert.IsFalse(WesternCalendar.IsLeapYear(750));
Assert.IsFalse(WesternCalendar.IsLeapYear(1429));
Assert.IsFalse(WesternCalendar.IsLeapYear(1700));
Assert.IsFalse(WesternCalendar.IsLeapYear(1800));
Assert.IsFalse(WesternCalendar.IsLeapYear(1900));
Assert.IsFalse(WesternCalendar.IsLeapYear(1982));
}
public void TestCalendarToDate()
{
TestDate(WesternCalendar.Create(2436116.31), 1957, Month.October, 4.81);
TestDate(WesternCalendar.Create(2418781.5), 1910, Month.April, 20.0);
TestDate(WesternCalendar.Create(2446470.5), 1986, Month.Febuary, 9.0);
TestDate(WesternCalendar.Create(2451545.0), 2000, 1, 1.5);
TestDate(WesternCalendar.Create(2446822.5), 1987, 1, 27.0);
TestDate(WesternCalendar.Create(2446966.0), 1987, 6, 19.5);
TestDate(WesternCalendar.Create(2447187.5), 1988, 1, 27.0);
TestDate(WesternCalendar.Create(2447332.0), 1988, 6, 19.5);
TestDate(WesternCalendar.Create(2415020.5), 1900, 1, 1.0);
TestDate(WesternCalendar.Create(2305447.5), 1600, 1, 1.0);
TestDate(WesternCalendar.Create(2305812.5), 1600, 12, 31.0);
TestDate(WesternCalendar.Create(2026871.8), 837, 4, 10.3);
TestDate(WesternCalendar.Create(1356001.0), -1000, 7, 12.5);
TestDate(WesternCalendar.Create(1355866.5), -1000, 2, 29.0);
TestDate(WesternCalendar.Create(1355671.4), -1001, 8, 17.9);
TestDate(WesternCalendar.Create(0.0), -4712, 1, 1.5);
}
