public void has_changed()
{
var statistics = new HighWaterStatistics {
LastMark = 5L, CurrentMark = 5L
};
statistics.HasChanged.ShouldBeFalse();
statistics.CurrentMark = 10L;
statistics.HasChanged.ShouldBeTrue();
}
public void stale_when_sequence_is_progressing()
{
var previous = new HighWaterStatistics {
CurrentMark = 11L, HighestSequence = 15L, Timestamp = DateTimeOffset.UtcNow.Subtract(4.Seconds())
};
var statistics = new HighWaterStatistics {
CurrentMark = 11L, HighestSequence = 30L, Timestamp = DateTimeOffset.UtcNow
};
statistics.InterpretStatus(previous)
.ShouldBe(HighWaterStatus.Stale);
}
public void changed()
{
var previous = new HighWaterStatistics {
CurrentMark = 11L, HighestSequence = 15L
};
var statistics = new HighWaterStatistics {
CurrentMark = 22L, HighestSequence = 30L
};
statistics.InterpretStatus(previous)
.ShouldBe(HighWaterStatus.Changed);
}
public void caught_up()
{
var previous = new HighWaterStatistics {
CurrentMark = 11L, HighestSequence = 20L
};
var statistics = new HighWaterStatistics();
statistics.CurrentMark = statistics.HighestSequence = previous.HighestSequence;
statistics.InterpretStatus(previous)
.ShouldBe(HighWaterStatus.CaughtUp);
}
public void no_change()
{
var previous = new HighWaterStatistics {
CurrentMark = 10L, HighestSequence = 10L
};
var statistics = new HighWaterStatistics {
CurrentMark = 10L, HighestSequence = 10L
};
statistics.InterpretStatus(previous)
.ShouldBe(HighWaterStatus.CaughtUp);
}
