public virtual bool Equals(OptionalDateTime another)
{
if (another == null)
{
return(IsEmpty);
}
return(Year == another.Year && Month == another.Month && Day == another.Day);
}
public OptionalDateTimeContract(OptionalDateTime dateTime)
{
ParamIs.NotNull(() => dateTime);
Day = dateTime.Day;
IsEmpty = dateTime.IsEmpty;
Month = dateTime.Month;
Year = dateTime.Year;
Formatted = dateTime.ToString();
}
private void TestEquals(bool equals,
int? firstYear = null, int? firstMonth = null, int? firstDay = null,
int? secondYear = null, int? secondMonth = null, int? secondDay = null) {
var first = new OptionalDateTime(firstYear, firstMonth, firstDay);
var second = new OptionalDateTime(secondYear, secondMonth, secondDay);
if (equals)
Assert.AreEqual(first, second, "Dates are equal");
else
Assert.AreNotEqual(first, second, "Dates are not equal");
}
/// <summary>
/// Tests this date with equality with another.
///
/// For the purposes of this test, the equality is defined as follows:
/// - EITHER One or both sides are null OR Empty. Null and Empty are considered equal.
/// - OR All date components are the same.
///
/// Note that if the year component is not specified, the date is considered Empty and thus equal to null,
/// regardless of the other date components (month and day).
/// </summary>
/// <param name="another">Another date object. Can be null.</param>
/// <returns>True if the dates are considered equal, otherwise false.</returns>
public virtual bool Equals(OptionalDateTime another) {
if (another == null)
return IsEmpty;
return ((IsEmpty && another.IsEmpty)
|| (Year == another.Year && Month == another.Month && Day == another.Day));
}
