Background and motivation

I'm using reflection to get around FakeTimeProvider inability to go backwards. Would be nice if a bool could be added to allow setting time earlier.

Thanks for considering.

API Proposal

public sealed class FakeTimeProvider : TimeProvider
{
    public bool AllowBackwardsTimeProgression { get; set; }
}

API Usage

// Fancy the value
FakeTimeProvider t = ...
t.AllowBackwardsTimeProgression = true;
t.SetUtcNow(new DateTimeOffset(1990, 1, 1, 1, 1, 1));
t.SetUtcNow(new DateTimeOffset(1984, 1, 1, 1, 1, 1));

Alternative Designs

No response

Risks

None I can think of. This new property will default to false.