public void Verify_NodeId_From_Generated_Matches()
{
var timestamp = DateTime.UtcNow.Ticks;
var idGenerationStrategy = new FlakeIDGenerationStrategy(100, () => timestamp);
var idGenerator = new IDGenerator <long>(100, idGenerationStrategy);
var id = idGenerator.GenerateId();
Assert.IsTrue(idGenerationStrategy.GetNodeFromId(id).Equals(100));
}
public void Verify_GenerateIds_Increase_In_Sequence_When_TimeStamp_Same()
{
var timestamp = DateTime.UtcNow.Ticks;
var idGenerationStrategy = new FlakeIDGenerationStrategy(100, () => timestamp);
var idGenerator = new IDGenerator <long>(100, idGenerationStrategy);
var id1 = idGenerator.GenerateId();
var id2 = idGenerator.GenerateId();
Assert.IsTrue(id2 > id1);
}
public void Verify_GenerateId_Throws_Exception_When_Clock_Moves_Back()
{
var timestamp = DateTime.UtcNow.Ticks;
var idGenerationStrategy = new FlakeIDGenerationStrategy(100, () => timestamp);
var idGenerator = new IDGenerator <long>(100, idGenerationStrategy);
idGenerator.GenerateId();
timestamp = new DateTime(timestamp).AddMilliseconds(-1).Ticks;
idGenerator.GenerateId();
Assert.IsTrue(true);
}
public void Verify_GenerateIds_Increase_In_Sequence()
{
var timestamp = DateTime.UtcNow.Ticks;
var idGenerationStrategy = new FlakeIDGenerationStrategy(100, () => timestamp);
var idGenerator = new IDGenerator <long>(100, idGenerationStrategy);
var id1 = idGenerator.GenerateId();
timestamp = new DateTime(timestamp).AddMilliseconds(1).Ticks;
var id2 = idGenerator.GenerateId();
Assert.IsTrue(id2 > id1);
}
public void Verify_Sequence_From_Generated_Matches()
{
var timestamp = DateTime.UtcNow.Ticks;
var idGenerationStrategy = new FlakeIDGenerationStrategy(100, () => timestamp);
var idGenerator = new IDGenerator <long>(100, idGenerationStrategy);
var id = idGenerator.GenerateId();
Assert.IsTrue(idGenerationStrategy.GetSequenceFromId(id).Equals(1));
for (int i = 0; i < 9; i++)
{
id = idGenerator.GenerateId();
}
Assert.IsTrue(idGenerationStrategy.GetSequenceFromId(id).Equals(10));
}