public void Ulid_GetHashCode_WorksCorrectly()
{
var rng = new FakeUlidRng();
var hashcodes = new List <int>()
{
Ulid.MinValue.GetHashCode(),
Ulid.MaxValue.GetHashCode(),
Ulid.NewUlid().GetHashCode(),
};
hashcodes.AddRange(Enumerable.Range(0, 1000).Select(i => Ulid.NewUlid(KNOWNTIMESTAMP_DTO.AddMilliseconds(i)).GetHashCode()));
hashcodes.AddRange(Enumerable.Range(0, 1000).Select(i => Ulid.NewUlid(KNOWNTIMESTAMP_DTO.AddMilliseconds(i), rng).GetHashCode()));
Assert.AreEqual(3 + 1000 + 1000, hashcodes.Distinct().Count());
}
public void MonotonicRng_Ensure_MaskMSBWorksCorrectly()
{
var rng = new FakeUlidRng(new byte[] { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 });
var ts = DateTimeOffset.Now;
Assert.IsTrue(new byte[] { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 0).GetRandomBytes(ts)), "Mask 0");
Assert.IsTrue(new byte[] { 127, 255, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 1).GetRandomBytes(ts)), "Mask 1");
Assert.IsTrue(new byte[] { 63, 255, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 2).GetRandomBytes(ts)), "Mask 2");
Assert.IsTrue(new byte[] { 1, 255, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 7).GetRandomBytes(ts)), "Mask 7");
Assert.IsTrue(new byte[] { 0, 255, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 8).GetRandomBytes(ts)), "Mask 8");
Assert.IsTrue(new byte[] { 0, 127, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 9).GetRandomBytes(ts)), "Mask 9");
Assert.IsTrue(new byte[] { 0, 1, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 15).GetRandomBytes(ts)), "Mask 15");
Assert.IsTrue(new byte[] { 0, 0, 255, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 16).GetRandomBytes(ts)), "Mask 16");
Assert.IsTrue(new byte[] { 0, 0, 127, 255, 255, 255, 255, 255, 255, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 17).GetRandomBytes(ts)), "Mask 17");
Assert.IsTrue(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 7, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 69).GetRandomBytes(ts)), "Mask 69");
Assert.IsTrue(new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 3, 255 }.SequenceEqual(new MonotonicUlidRng(rng, 70).GetRandomBytes(ts)), "Mask 70");
}
public void Ulid_NewUlid_ThrowsInvalidOperationException_OnRNGReturningInsufficientBytes()
{
var rng = new FakeUlidRng(new byte[] { 1, 2, 3 });
Ulid.NewUlid(rng);
}
public void Ulid_NewUlid_ThrowsInvalidOperationException_OnRNGReturningInsufficientBytes()
{
var rng = new FakeUlidRng(new byte[] { 1, 2, 3 });
Ulid.NewUlid(rng);
}
public void Ulid_GetHashCode_WorksCorrectly()
{
var rng = new FakeUlidRng();
var hashcodes = new List<int>()
{
Ulid.MinValue.GetHashCode(),
Ulid.MaxValue.GetHashCode(),
Ulid.NewUlid().GetHashCode(),
};
hashcodes.AddRange(Enumerable.Range(0, 1000).Select(i => Ulid.NewUlid(KNOWNTIMESTAMP_DTO.AddMilliseconds(i)).GetHashCode()));
hashcodes.AddRange(Enumerable.Range(0, 1000).Select(i => Ulid.NewUlid(KNOWNTIMESTAMP_DTO.AddMilliseconds(i), rng).GetHashCode()));
Assert.AreEqual(3 + 1000 + 1000, hashcodes.Distinct().Count());
}