public void TestMethodSubtract()
{
Random rnd = new Random();
for (int i = 0; i < 1000; i++)
{
var datetime = new DateTime(rnd.Next(1970, 3000), rnd.Next(1, 13), rnd.Next(1, 29), rnd.Next(0, 24), rnd.Next(0, 60), rnd.Next(0, 60), (DateTimeKind)rnd.Next(0, 3));
UnixTime64 ut = datetime;
for (int n = 0; n < 10;)
{
long seconds = (long)((rnd.NextDouble() * 2 - 1) * 1000 * 365 * TimeSpan.TicksPerDay / TimeSpan.TicksPerSecond);
try
{
var test = datetime - TimeSpan.FromSeconds(seconds);
}
catch (Exception ex)
{
///OverflowException at TimeSpan.FromSeconds()
///The added or subtracted value results in an un-representable DateTime.
continue;
}
var oldDT = datetime;
var oldUT = ut;
switch (n % 2)
{
case 0:
ut -= seconds;
datetime = datetime.AddTicks(-seconds * TimeSpan.TicksPerSecond);
break;
case 1:
var ts = TimeSpan.FromSeconds(seconds);
ut -= ts;
datetime = datetime - ts;
break;
}
n++;
Assert.AreEqual(datetime, (DateTime)ut);
Assert.AreEqual(true, ut == datetime);
Assert.AreEqual(true, ut == ut.TimeStamp);
Assert.AreEqual(false, ut != datetime);
Assert.AreEqual(false, ut != ut.TimeStamp);
}
}
}
public void TestMethodParse()
{
Random rnd = new Random();
for (int i = 0; i < 1000; i++)
{
var datetime = new DateTime(rnd.Next(1970, 2035), rnd.Next(1, 13), rnd.Next(1, 29), rnd.Next(0, 24), rnd.Next(0, 60), rnd.Next(0, 60), (DateTimeKind)rnd.Next(0, 3));
var dts = datetime.ToString(Cave.UnixTime.UnixTime.InterOpDateTimeFormat);
var ut = (UnixTime64)datetime;
var uts = ut.ToString();
var utb = UnixTime64.Parse(uts);
Assert.AreEqual(datetime, (DateTime)ut);
Assert.AreEqual(datetime, (DateTime)utb);
Assert.AreEqual(dts, uts);
}
}
public void TestMethodOverflow()
{
var datetime = DateTime.Now;
UnixTime64 ut = datetime;
try
{
ut += long.MaxValue;
}
catch (Exception ex)
{
Assert.AreEqual(typeof(OverflowException), ex.GetType());
}
try
{
ut -= long.MaxValue;
}
catch (Exception ex)
{
Assert.AreEqual(typeof(OverflowException), ex.GetType());
}
for (int i = -9; i < 10; i++)
{
DateTime check = new DateTime(1970, 1, 1) + TimeSpan.FromSeconds((uint.MaxValue + 1L) * i);
Assert.AreEqual(check, UnixTime64.Convert(0, DateTimeKind.Local, i));
Assert.AreEqual(check, UnixTime64.Convert(0, DateTimeKind.Utc, i));
Assert.AreEqual(check, UnixTime64.Convert(0, DateTimeKind.Unspecified, i));
}
for (int i = -9; i < 10; i++)
{
TimeSpan zone = new TimeSpan(2, 0, 0);
DateTime check = new DateTime(1970, 1, 1) + TimeSpan.FromSeconds((uint.MaxValue + 1L) * i) - zone;
Assert.AreEqual(check, UnixTime64.ConvertToUTC(0, zone, i));
Assert.AreEqual(check, UnixTime64.ConvertToUTC(0, zone, i));
Assert.AreEqual(check, UnixTime64.ConvertToUTC(0, zone, i));
}
}
public void TestMethodStruct()
{
Assert.AreEqual(false, new UnixTime64().Equals(null));
Assert.AreEqual(new UnixTime64(), new UnixTime64());
Assert.AreEqual(0, new UnixTime64().TimeStamp);
Assert.AreEqual((UnixTime64)0, new UnixTime64());
Assert.AreEqual(true, 0 == new UnixTime64().TimeStamp);
Assert.AreEqual(new DateTime(1970, 1, 1), (DateTime) new UnixTime64());
unsafe
{
Assert.AreEqual(structSize, Marshal.SizeOf <UnixTime64>());
Assert.AreEqual(structSize, sizeof(UnixTime64));
}
var ptr = Marshal.AllocHGlobal(100);
Marshal.Copy(new byte[100], 0, ptr, 100);
try
{
UnixTime64 now = UnixTime64.Now;
Marshal.StructureToPtr(now, ptr, true);
long value = (long)Marshal.ReadInt64(ptr);
Assert.AreEqual(true, now.TimeStamp == value);
var copy = Marshal.PtrToStructure <UnixTime64>(ptr);
Assert.AreEqual(now.TimeStamp, copy.TimeStamp);
Assert.AreEqual(now, copy);
Assert.AreEqual((DateTime)now, (DateTime)copy);
Assert.AreEqual(now.DateTime, copy.DateTime);
Assert.AreEqual(now.GetHashCode(), copy.TimeStamp.GetHashCode());
Assert.AreEqual(now.GetHashCode(), copy.GetHashCode());
}
finally
{
Marshal.FreeHGlobal(ptr);
}
}