public void SequentialUuidGenerator_ExtractTimestamp_should_work()
{
var sequentialGuidGenerator = new SequentialUuidGenerator();
var id = sequentialGuidGenerator.GenerateGuid();
var timestamp = SequentialUuidGenerator.ExtractTimestamp(id);
DateTime.Now.ToUniversalTime().Subtract(timestamp).Should().BeLessThan(new TimeSpan(0, 0, 1));
}
public void SequentialGuidGenerator_generates_Guids_that_are_sequential()
{
var sequentialUuidGenerator = new SequentialUuidGenerator();
var generatedIds = new List<Guid>();
for(var i = 0; i < 10000; i++)
generatedIds.Add(sequentialUuidGenerator.GenerateGuid());
generatedIds.Should().BeInAscendingOrder();
}
public void SequentialGuidGenerator_generates_Guids_that_are_unique()
{
var sequentialUuidGenerator = new SequentialUuidGenerator();
int iterations = 100000;
var generatedIds = new Guid[iterations];
for(var i = 0; i < iterations; i++)
generatedIds[i] = sequentialUuidGenerator.GenerateGuid();
var hashSet = new HashSet<Guid>();
for(var i = 0; i < iterations; i++)
hashSet.Add(generatedIds[i]).Should().BeTrue();
}
public void SequentialUuidGenerator_IsSequentialUuid_should_return_true_for_value_we_generated()
{
var sequentialUuidGenerator = new SequentialUuidGenerator();
SequentialUuidGenerator.IsSequentialUuid(sequentialUuidGenerator.GenerateGuid()).Should().BeTrue();
}
