public async Task CanGenerateSequenceNumbers()
{
var sut = new SequenceNumberGenerator();
Assert.AreEqual(1, sut.NewSequenceNumber(SequenceName));
Assert.AreEqual(2, sut.NewSequenceNumber(SequenceName));
Assert.AreEqual(1, sut.NewSequenceNumber(OtherSequenceName));
var sequenceNumbers = (await Task.WhenAll(Enumerable.Range(0, 1000).Select(i => Task.Run(() => sut.NewSequenceNumber(SequenceName))))).ToList();
Assert.AreEqual(sequenceNumbers.Distinct().Count(), sequenceNumbers.Count);
Assert.IsTrue(Enumerable.Range(0, 1000).All(i => sequenceNumbers.Contains(i + 3)));
}
