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));
}
public PrgState Execute(PrgState state)
{
if (IsOpen(state))
{
throw new Exception("File " + fileName + " is open");
}
else
{
System.IO.StreamReader file = new System.IO.StreamReader(fileName);
FileData fd = new FileData(fileName, file);
int id = IDGenerator.GenerateId();
// add the id and the descriptor
state.FileTable.Add(id, fd);
// get the dictionary
IModDictionary <string, int> dict = state.SymbTable;
if (dict.Contains(varFileId))
{
dict.Update(varFileId, id);
}
else
{
dict.Put(varFileId, id);
}
return(state);
}
}
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 GenerateId()
{
Id = IDGenerator.GenerateId();
}