public void TimeStamping()
{
var state = new ChatState();
var now = DateTime.UtcNow;
var aStart = now.AddHours(3);
var aEnd = now.AddHours(4);
var bStart = now;
var bEnd = now.AddHours(3);
var cStart = now.AddHours(1);
// ---A--
// BBB---
// -CCCCC
var signings = new[]
{
new Signing("A", true, false, aStart, aEnd),
new Signing("B", true, false, bStart, bEnd),
new Signing("C", true, false, cStart),
};
foreach (var signing in signings)
{
state = state.AddSigning(signing);
}
state.GetTwos().SequenceEqual(
ImmutableList.Create(signings[1], signings[2]));
}