public void MeasuresEventTimeWithHighResolution()
{
if (Environment.OSVersion.Platform != PlatformID.Win32NT)
{
// We only use explicit high-precision timestamping on Windows, relying on .NET implementation defaults for other platforms
return;
}
var healthReporterMock = new Mock <IHealthReporter>();
// Ensure the EventSource is instantiated
EventSourceInputTestSource.Log.Message("warmup");
List <DateTimeOffset> eventTimes = new List <DateTimeOffset>();
Action <EventWrittenEventArgs> eventHandler = e => eventTimes.Add(EventDataExtensions.ToEventData(e, healthReporterMock.Object, "context-unused").Timestamp);
var twoMilliseconds = Math.Round(Stopwatch.Frequency / 500.0);
using (var listener = new EventSourceInputTestListener(eventHandler))
{
for (int i = 0; i < 8; i++)
{
EventSourceInputTestSource.Log.Message(i.ToString());
var sw = Stopwatch.StartNew();
while (sw.ElapsedTicks < twoMilliseconds)
{
// Spin wait
}
}
}
// Event timestamps should have less than 1 ms resolution and thus should all be different
Assert.Equal(8, eventTimes.Distinct().Count());
}
public void MeasuresEventTimeWithHighResolution()
{
var healthReporterMock = new Mock <IHealthReporter>();
// Ensure the EventSource is instantiated
EventSourceInputTestSource.Log.Message("warmup");
List <DateTimeOffset> eventTimes = new List <DateTimeOffset>();
Action <EventWrittenEventArgs> eventHandler = e => eventTimes.Add(EventDataExtensions.ToEventData(e, healthReporterMock.Object, "context-unused").Timestamp);
var hundredMicroseconds = Math.Round(Stopwatch.Frequency / 10000.0);
using (var listener = new EventSourceInputTestListener(eventHandler))
{
for (int i = 0; i < 8; i++)
{
EventSourceInputTestSource.Log.Message(i.ToString());
var sw = Stopwatch.StartNew();
while (sw.ElapsedTicks < hundredMicroseconds)
{
// Spin wait
}
}
}
Assert.True(eventTimes.Distinct().Count() == 8, "Event timestamps should have less than 1 ms resolution and thus should all be different");
}
public void UsesIsoDateFormat()
{
EventData e = new EventData();
e.Payload.Add("DateTimeProperty", new DateTime(2017, 4, 19, 10, 15, 23, DateTimeKind.Utc));
e.Payload.Add("DateTimeOffsetProperty", new DateTimeOffset(2017, 4, 19, 10, 16, 07, TimeSpan.Zero));
var messagingData = EventDataExtensions.ToMessagingEventData(e, EventFlowJsonUtilities.GetDefaultSerializerSettings(), out int messageSize);
string messageBody = Encoding.UTF8.GetString(messagingData.Body.Array, messagingData.Body.Offset, messagingData.Body.Count);
var dateTimeRegex = new Regex(@"""DateTimeProperty"" \s* : \s* ""2017-04-19T10:15:23Z""", RegexOptions.IgnorePatternWhitespace, TimeSpan.FromMilliseconds(100));
Assert.Matches(dateTimeRegex, messageBody);
var dateTimeOffsetRegex = new Regex(@"""DateTimeOffsetProperty"" \s* : \s* ""2017-04-19T10:16:07\+00:00""", RegexOptions.IgnorePatternWhitespace, TimeSpan.FromMilliseconds(100));
Assert.Matches(dateTimeOffsetRegex, messageBody);
}
public void UsesIsoDateFormat()
{
EventData e = new EventData();
e.Payload.Add("DateTimeProperty", new DateTime(2017, 4, 19, 10, 15, 23, DateTimeKind.Utc));
e.Payload.Add("DateTimeOffsetProperty", new DateTimeOffset(2017, 4, 19, 10, 16, 07, TimeSpan.Zero));
var messagingData = EventDataExtensions.ToMessagingEventData(e, out int messageSize);
StreamReader sr = new StreamReader(messagingData.GetBodyStream());
string messageBody = sr.ReadToEnd();
var dateTimeRegex = new Regex(@"""DateTimeProperty"" \s* : \s* ""2017-04-19T10:15:23Z""", RegexOptions.IgnorePatternWhitespace, TimeSpan.FromMilliseconds(100));
Assert.Matches(dateTimeRegex, messageBody);
var dateTimeOffsetRegex = new Regex(@"""DateTimeOffsetProperty"" \s* : \s* ""2017-04-19T10:16:07\+00:00""", RegexOptions.IgnorePatternWhitespace, TimeSpan.FromMilliseconds(100));
Assert.Matches(dateTimeOffsetRegex, messageBody);
}