public void TestRoundTrip64Bit()
{
DbGuid testA = DbGuid.NewGuid();
DbGuid testB = new DbGuid(testA.High64, testA.Low64);
Assert.AreEqual(testA, testB);
}
public void TestRoundTripDbGuidToGuid()
{
DbGuid testA = DbGuid.NewGuid();
Guid dbtest = testA;
DbGuid testB = (DbGuid)dbtest;
Assert.AreEqual(testA, testB);
}
public void GuidCompare()
{
DbGuid a = DbGuid.NewGuid();
DbGuid b = DbGuid.NewGuid();
Assert.AreEqual(-1, a.CompareTo(b));
Assert.AreEqual(-1, a.ToGuid().CompareTo(b.ToGuid()));
}
public void TestRoundTripBytes()
{
DbGuid testA = DbGuid.NewGuid();
byte[] bytes = testA.ToByteArray();
DbGuid testB = new DbGuid(bytes);
Assert.AreEqual(testA, testB);
}
public void TestRoundTripByteOffset()
{
DbGuid testA = DbGuid.NewGuid();
byte[] bytes = new byte[1024];
testA.ToByteArray(bytes, 512);
DbGuid testB = new DbGuid(bytes, 512);
Assert.AreEqual(testA, testB);
}
public void TestEquality()
{
DbGuid testA = DbGuid.NewGuid();
TestEquality(testA, testA, true);
TestEquality(testA, DbGuid.NewGuid(), false);
TestEquality(testA, new DbGuid(Guid.NewGuid()), false);
TestEquality(testA, testA.ToSqlGuid(), true);
TestEquality(testA, testA.ToSqlGuid().ToSequenceGuid(), true);
}
public void TestDateTime()
{
// Note: DateTime precision is +/- 1ms
DateTime start = DateTime.UtcNow.AddMilliseconds(-1);
DbGuid test = DbGuid.NewGuid();
Assert.IsTrue(test.ToDateTimeUtc() > start, "expected {0} > {1}", test.ToDateTimeUtc(), start);
DateTime now = DateTime.UtcNow.AddMilliseconds(1);
Assert.IsTrue(test.ToDateTimeUtc() <= now, "expected {0} <= {1}", test.ToDateTimeUtc(), now);
}
public void TestRoundTripSqlGuid()
{
DbGuid testA = DbGuid.NewGuid();
DbGuid dbtest = testA.ToSqlGuid();
Assert.AreEqual(dbtest, testA);
Assert.AreEqual(dbtest.GetHashCode(), testA.GetHashCode());
Assert.AreEqual(0, dbtest.CompareTo(testA));
DbGuid testB = dbtest.ToSequenceGuid();
Assert.AreEqual(testA, testB);
}
public void TestSequence()
{
DbGuid last = DbGuid.NewGuid();
for (int i = 0; i < 10000; i++)
{
DbGuid test = DbGuid.NewGuid();
TestSequence(last, test);
TestSequence(last, test.ToSqlGuid());
TestSequence(last.ToSqlGuid(), test);
TestSequence(last.ToSqlGuid(), test.ToSqlGuid());
Assert.IsTrue(last.CompareTo(test) < 0);
last = test;
}
}
public void TestGenerationPerf()
{
var timer = Stopwatch.StartNew();
int total = 0, target = 0;
while (timer.ElapsedMilliseconds < 1000)
{
for (target += 1000000; total < target; total++)
{
DbGuid.NewGuid();
}
}
timer.Stop();
Console.WriteLine("Generated {0:n0} guids in {1:n2} seconds, averaging {2:n2} per second.",
total, timer.Elapsed.TotalSeconds, total / timer.Elapsed.TotalSeconds);
}
public void TestSerializer()
{
DbGuid[] ids = new DbGuid[16];
MemoryStream stream = new MemoryStream();
for (int i = 0; i < ids.Length; i++)
{
ids[i] = DbGuid.NewGuid();
DbGuid.Serializer.WriteTo(ids[i], stream);
}
stream.Position = 0;
for (int i = 0; i < ids.Length; i++)
{
DbGuid test = DbGuid.Serializer.ReadFrom(stream);
Assert.AreEqual(ids[i], test);
}
Assert.AreEqual(-1, stream.ReadByte());
}
