public void TestDaysInMonth()
{
for (int i = 1; i < 10000; ++i)
{
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 1)); // January
if ((i % 4 == 0) && !((i % 100 == 0) && (i % 400 != 0)))
{
Assert.AreEqual(29, YearMonthDay.DaysInMonth(i, 2)); // February of a leap year
}
else
{
Assert.AreEqual(28, YearMonthDay.DaysInMonth(i, 2)); // February of a common year
}
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 3)); // March
Assert.AreEqual(30, YearMonthDay.DaysInMonth(i, 4)); // April
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 5)); // May
Assert.AreEqual(30, YearMonthDay.DaysInMonth(i, 6)); // June
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 7)); // July
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 8)); // August
Assert.AreEqual(30, YearMonthDay.DaysInMonth(i, 9)); // September
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 10)); // October
Assert.AreEqual(30, YearMonthDay.DaysInMonth(i, 11)); // November
Assert.AreEqual(31, YearMonthDay.DaysInMonth(i, 12)); // December
}
}
public void TestIsValidDate()
{
Assert.IsFalse(YearMonthDay.IsValidDate(2000, 0, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 1, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 2, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 3, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 4, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 5, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 6, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 7, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 8, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 9, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 10, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 11, 1));
Assert.IsTrue(YearMonthDay.IsValidDate(2000, 12, 1));
Assert.IsFalse(YearMonthDay.IsValidDate(2000, 13, 1));
for (int month = 1; month < 13; ++month)
{
int daysInMonth = YearMonthDay.DaysInMonth(2000, month);
Assert.IsFalse(YearMonthDay.IsValidDate(2000, month, 0));
for (int day = 1; day < daysInMonth + 1; ++day)
{
Assert.IsTrue(YearMonthDay.IsValidDate(2000, month, day));
}
Assert.IsFalse(YearMonthDay.IsValidDate(2000, month, daysInMonth + 1));
}
}
public void TestConstructFromDayOfYear()
{
int[] years = { 2000, 2001 };
Assert.IsTrue(YearMonthDay.IsLeapYear(years[0]));
Assert.IsFalse(YearMonthDay.IsLeapYear(years[1]));
foreach (int year in years)
{
int cumulativeDays = 0;
for (int month = 1; month <= 12; ++month)
{
// Test first of the month.
YearMonthDay ymd = new YearMonthDay(year, cumulativeDays + 1);
Assert.AreEqual(year, ymd.Year);
Assert.AreEqual(month, ymd.Month);
Assert.AreEqual(1, ymd.Day);
int daysInMonth = YearMonthDay.DaysInMonth(year, month);
// Test last of the month.
ymd = new YearMonthDay(year, cumulativeDays + daysInMonth);
Assert.AreEqual(year, ymd.Year);
Assert.AreEqual(month, ymd.Month);
Assert.AreEqual(daysInMonth, ymd.Day);
cumulativeDays += daysInMonth;
}
}
}
