public void CanReadv1Logs_Skip_PreStart(string logPath, int skip, int take,
int expectedHistogramCount, int expectedCombinedValueCount,
int expectedCombined999, long expectedCombinedMaxLength,
double expectedStartTime)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
HistogramBase accumulatedHistogram = Create(OneHourOfNanoseconds, DefaultSignificantDigits);
var histograms = reader.ReadHistograms()
.Where(h => h.StartTimeStamp >= reader.GetStartTime().MillisecondsSinceUnixEpoch())
.Skip(skip)
.Take(take);
foreach (var histogram in histograms)
{
histogramCount++;
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.Equal(expectedHistogramCount, histogramCount);
Assert.Equal(expectedCombinedValueCount, totalCount);
Assert.Equal(expectedCombined999, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.Equal(expectedCombinedMaxLength, accumulatedHistogram.GetMaxValue());
Assert.Equal(expectedStartTime, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadV2TaggedLogs(string logPath)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
var accumulatedHistogramWithNoTag = Create(85899345920838, DefaultSignificantDigits);
var accumulatedHistogramWithTagA = Create(85899345920838, DefaultSignificantDigits);
foreach (var histogram in reader.ReadHistograms())
{
histogramCount++;
Assert.IsAssignableFrom <HistogramBase>(histogram);// "Expected integer value histograms in log file");
totalCount += histogram.TotalCount;
if (string.IsNullOrEmpty(histogram.Tag))
{
accumulatedHistogramWithNoTag.Add(histogram);
}
else if (histogram.Tag == "A")
{
accumulatedHistogramWithTagA.Add(histogram);
}
}
Assert.Equal(42, histogramCount);
Assert.Equal(32290, totalCount);
HistogramAssert.AreValueEqual(accumulatedHistogramWithNoTag, accumulatedHistogramWithTagA);
}
public void CanReadv1Logs(string logPath, int skip, int take,
int expectedHistogramCount, int expectedCombinedValueCount,
int expectedCombined999, long expectedCombinedMaxLength,
double expectedStartTime)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
HistogramBase accumulatedHistogram = new LongHistogram(3600L * 1000 * 1000 * 1000, 3);
var histograms = reader.ReadHistograms()
.Skip(skip)
.Take(take);
foreach (var histogram in histograms)
{
histogramCount++;
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.AreEqual(expectedHistogramCount, histogramCount);
Assert.AreEqual(expectedCombinedValueCount, totalCount);
Assert.AreEqual(expectedCombined999, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.AreEqual(expectedCombinedMaxLength, accumulatedHistogram.GetMaxValue());
Assert.AreEqual(expectedStartTime, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadEmptyLog()
{
byte[] data;
var startTimeWritten = DateTime.Now;
var expectedStartTime = startTimeWritten.SecondsSinceUnixEpoch()
.Round(3);
using (var writerStream = new MemoryStream())
{
HistogramLogWriter.Write(writerStream, startTimeWritten);
data = writerStream.ToArray();
}
using (var readerStream = new MemoryStream(data))
{
var reader = new HistogramLogReader(readerStream);
CollectionAssert.IsEmpty(reader.ReadHistograms().ToList());
var actualStartTime = reader.GetStartTime().SecondsSinceUnixEpoch().Round(3);
Assert.AreEqual(expectedStartTime, actualStartTime);
}
}
public void CanReadEmptyLog()
{
byte[] data;
var startTimeWritten = DateTime.Now;
var expectedStartTime = startTimeWritten.SecondsSinceUnixEpoch()
.Round(3);
using (var writerStream = new MemoryStream())
{
HistogramLogWriter.Write(writerStream, startTimeWritten);
data = writerStream.ToArray();
}
using (var readerStream = new MemoryStream(data))
{
var reader = new HistogramLogReader(readerStream);
Assert.Empty(reader.ReadHistograms().ToList());
var actualStartTime = reader.GetStartTime().SecondsSinceUnixEpoch().Round(3);
Assert.Equal(expectedStartTime, actualStartTime);
}
}
public void CanReadv2Logs(string logPath)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
var accumulatedHistogram = Create(85899345920838, DefaultSignificantDigits);
foreach (var histogram in reader.ReadHistograms())
{
histogramCount++;
Assert.IsAssignableFrom <HistogramBase>(histogram);//, "Expected integer value histograms in log file");
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.Equal(62, histogramCount);
Assert.Equal(48761, totalCount);
Assert.Equal(1745879039, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.Equal(1796210687, accumulatedHistogram.GetMaxValue());
Assert.Equal(1441812279.474, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadv2Logs(string logPath)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
var accumulatedHistogram = new LongHistogram(85899345920838, 3);
foreach (var histogram in reader.ReadHistograms())
{
histogramCount++;
Assert.IsInstanceOf<HistogramBase>(histogram, "Expected integer value histograms in log file");
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.AreEqual(62, histogramCount);
Assert.AreEqual(48761, totalCount);
Assert.AreEqual(1745879039, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.AreEqual(1796210687, accumulatedHistogram.GetMaxValue());
Assert.AreEqual(1441812279.474, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadv1Logs_Skip_PreStart(string logPath, int skip, int take,
int expectedHistogramCount, int expectedCombinedValueCount,
int expectedCombined999, long expectedCombinedMaxLength,
double expectedStartTime)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
HistogramBase accumulatedHistogram = new LongHistogram(3600L * 1000 * 1000 * 1000, 3);
var histograms = reader.ReadHistograms()
.Where(h => h.StartTimeStamp >= reader.GetStartTime().MillisecondsSinceUnixEpoch())
.Skip(skip)
.Take(take);
foreach (var histogram in histograms)
{
histogramCount++;
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.AreEqual(expectedHistogramCount, histogramCount);
Assert.AreEqual(expectedCombinedValueCount, totalCount);
Assert.AreEqual(expectedCombined999, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.AreEqual(expectedCombinedMaxLength, accumulatedHistogram.GetMaxValue());
Assert.AreEqual(expectedStartTime, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadv1Logs(string logPath, int skip, int take,
int expectedHistogramCount, int expectedCombinedValueCount,
int expectedCombined999, long expectedCombinedMaxLength,
double expectedStartTime)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
HistogramBase accumulatedHistogram = Create(OneHourOfNanoseconds, DefaultSignificantDigits);
var histograms = reader.ReadHistograms()
.Skip(skip)
.Take(take);
foreach (var histogram in histograms)
{
histogramCount++;
totalCount += histogram.TotalCount;
accumulatedHistogram.Add(histogram);
}
Assert.AreEqual(expectedHistogramCount, histogramCount);
Assert.AreEqual(expectedCombinedValueCount, totalCount);
Assert.AreEqual(expectedCombined999, accumulatedHistogram.GetValueAtPercentile(99.9));
Assert.AreEqual(expectedCombinedMaxLength, accumulatedHistogram.GetMaxValue());
Assert.AreEqual(expectedStartTime, reader.GetStartTime().SecondsSinceUnixEpoch());
}
public void CanReadV2TaggedLogs(string logPath)
{
var readerStream = GetEmbeddedFileStream(logPath);
var reader = new HistogramLogReader(readerStream);
int histogramCount = 0;
long totalCount = 0;
var accumulatedHistogramWithNoTag = Create(85899345920838, DefaultSignificantDigits);
var accumulatedHistogramWithTagA = Create(85899345920838, DefaultSignificantDigits);
foreach (var histogram in reader.ReadHistograms())
{
histogramCount++;
Assert.IsInstanceOf<HistogramBase>(histogram, "Expected integer value histograms in log file");
totalCount += histogram.TotalCount;
if (string.IsNullOrEmpty(histogram.Tag))
{
accumulatedHistogramWithNoTag.Add(histogram);
}
else if (histogram.Tag == "A")
{
accumulatedHistogramWithTagA.Add(histogram);
}
}
Assert.AreEqual(42, histogramCount);
Assert.AreEqual(32290, totalCount);
HistogramAssert.AreValueEqual(accumulatedHistogramWithNoTag, accumulatedHistogramWithTagA);
}