public PerformanceStats(TimeSpan recordPeriod, int maxRecordCount)
{
this.recordPeriod = recordPeriod;
this.maxRecordCount = maxRecordCount;
head = new PerformanceRecord(recordPeriod);
records.Enqueue(head);
}
public void TotalProcessedEventCount_AfterItemsAdded_ShouldYieldCorrectCount()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.EventProcessed("A");
sut.EventProcessed("B");
sut.EventProcessed("A");
sut.TotalProcessedEventCount.Should().Be(3);
}
public void QueueStats_AfterThreeItemsAdded_ShouldYieldCorectCountsThree()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.EventProcessed("A");
sut.EventProcessed("B");
sut.EventProcessed("A");
sut.QueueStats().Should().BeEquivalentTo(new Dictionary<string, long>{{"A",2},{"B",1}});
}
public void GetProcessedEventsFor_AfterItemsAdded_ShouldYieldCorrectCounts()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.EventProcessed("A");
sut.EventProcessed("B");
sut.EventProcessed("A");
sut.GetProcessedEventsFor("A").Should().Be(2);
sut.GetProcessedEventsFor("B").Should().Be(1);
}
public void TidyRecords()
{
while (head.EndTime < DateTime.Now)
{
head = new PerformanceRecord(recordPeriod, head.EndTime.AddTicks(1));
records.Enqueue(head);
if (records.Count > maxRecordCount)
{
records.Dequeue();
}
}
}
public async Task RecordsAfter_ShouldReturnAllRecordsStartingAfterTheSuppliedDate()
{
var sut = new PerformanceStats(TimeSpan.FromMilliseconds(30), 3);
var records = (Queue<PerformanceRecord>)sut.Records;
records.Clear();
var first = new PerformanceRecord(It.IsAny<TimeSpan>(), new DateTime(1, 2, 3));
var second = new PerformanceRecord(It.IsAny<TimeSpan>(), first.StartTime.AddTicks(1));
records.Enqueue(first);
records.Enqueue(second);
var foundRecords = sut.RecordsAfter(first.StartTime);
foundRecords.Should().BeEquivalentTo(new[] {second});
}
public void EndTime_ShouldBeCalculatedCorrectlyAccordingToRecordPeriod()
{
var recordPeriod = TimeSpan.FromMinutes(5);
var sut = new PerformanceRecord(recordPeriod);
sut.EndTime.Should().BeExactly(recordPeriod).After(sut.StartTime);
}
public void StartTime_ShouldBeSetAccordinglyWhenSpecified()
{
var expected = new DateTime(1234, 5, 6);
var sut = new PerformanceRecord(It.IsAny<TimeSpan>(), expected);
sut.StartTime.Should().Be(expected);
}
public void StartTime_ShouldBeCalculatedAccordingToCurrentTimeWhenNotSpecified()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.StartTime.Should().BeWithin(TimeSpan.FromMilliseconds(50)).Before(DateTime.Now);
}
public void GetProcessedEventsFor_ForEmptyPerformanceRecord_ShouldYieldZeroForCountForAnyString()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.GetProcessedEventsFor("something arbirtary").Should().Be(0);
}
public void TotalProcessedEventCount_ForEmptyPerformanceRecord_ShouldYieldZero()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.TotalProcessedEventCount.Should().Be(0);
}
public void QueueStats_ForEmptyPerformanceRecord_ShouldYieldAnEmptyDictionaryOfCounters()
{
var sut = new PerformanceRecord(It.IsAny<TimeSpan>());
sut.QueueStats().Should().NotBeNull();
sut.QueueStats().Should().BeEmpty();
}