public async Task TidyRecords_WhenAddingRecords_ShouldNotOverflowMaxRecordCount()
{
var sut = new PerformanceStats(TimeSpan.FromMilliseconds(30), 3);
await Task.Delay(150);
var records = (Queue <PerformanceRecord>)sut.Records;
sut.TidyRecords();
records.Count.Should().Be(3);
}
public async Task TidyRecords_WhenAddingRecords_ShouldFillInGapsInBuketsIfNecessary()
{
var sut = new PerformanceStats(TimeSpan.FromMilliseconds(30), 3);
await Task.Delay(150);
var records = (Queue <PerformanceRecord>)sut.Records;
sut.TidyRecords();
var now = DateTime.Now;
var last = records.Skip(2).First();
var middle = records.Skip(1).First();
var first = records.Skip(0).First();
last.EndTime.Should().BeWithin(TimeSpan.FromMilliseconds(50)).After(now);
last.EndTime.Should().BeWithin(TimeSpan.FromMilliseconds(50)).Before(now);
var oneMS = TimeSpan.FromMilliseconds(1);
last.StartTime.Should().BeWithin(oneMS).After(middle.EndTime);
middle.StartTime.Should().BeWithin(oneMS).After(first.EndTime);
}