/// <summary>
/// Ensure that the date provided to be injected into a GUID is the same date we get back from it.
/// Allowed for an optional resolution loss in the time. Calculates the delta using ticks to
/// avoid floating point drift in using TotalMilliseconds.
/// </summary>
private void IsReversible(ICombProvider Comb, int ClockDriftAllowedMs) {
var dt = DateTime.UtcNow;
var comb = Comb.Create(dt);
var dtDecoded = Comb.GetTimestamp(comb);
var delta = (dtDecoded.Ticks - dt.Ticks) / 10000;
Assert.InRange(delta, -ClockDriftAllowedMs, ClockDriftAllowedMs);
}
/// <summary>
/// Ensure that the date provided to be injected into a GUID is the same date we get back from it.
/// Allowed for an optional resolution loss in the time. Calculates the delta using ticks to
/// avoid floating point drift in using TotalMilliseconds.
/// </summary>
private void IsReversible(ICombProvider Comb, int ClockDriftAllowedMs)
{
var dt = DateTime.UtcNow;
var comb = Comb.Create(dt);
var dtDecoded = Comb.GetTimestamp(comb);
var delta = (dtDecoded.Ticks - dt.Ticks) / 10000;
Assert.InRange(delta, -ClockDriftAllowedMs, ClockDriftAllowedMs);
}
public void TestUtcNoRepeatTimestampProvider()
{
var g1 = SqlNoRepeatCombs.Create();
var dt1 = SqlNoRepeatCombs.GetTimestamp(g1);
var inSequenceCount = 0;
for (var i = 0; i < 1000; i++)
{
var g2 = SqlNoRepeatCombs.Create();
var dt2 = SqlNoRepeatCombs.GetTimestamp(g2);
if (dt2 > dt1)
{
inSequenceCount++;
}
else
{
Console.WriteLine($"{dt1:MM/dd/yyyy hh:mm:ss.fff} > {dt2:MM/dd/yyyy hh:mm:ss.fff}");
}
dt1 = dt2;
}
Assert.Equal(1000, inSequenceCount);
}