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Include AvailabilityTelemetry.Timestamp as microsoft.availability.testTimestamp attribute #3153

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Merged
rajkumar-rangaraj merged 4 commits into from
Mar 27, 2026
Merged

Include AvailabilityTelemetry.Timestamp as microsoft.availability.testTimestamp attribute #3153

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bc76077
Initial plan
Copilot Mar 27, 2026
fdcd90e
Include AvailabilityTelemetry.Timestamp as microsoft.availability.tes…
Copilot Mar 27, 2026
95d2745
Add changelog entry for TrackAvailability timestamp fix (#3153)
Copilot Mar 27, 2026
596b32a
Use UtcDateTime for microsoft.availability.testTimestamp attribute
Copilot Mar 27, 2026
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Use UtcDateTime for microsoft.availability.testTimestamp attribute 
Agent-Logs-Url: https://github.com/microsoft/ApplicationInsights-dotnet/sessions/2847601f-8eaf-42ea-9083-9933f8230ab3

Co-authored-by: rajkumar-rangaraj <9479006+rajkumar-rangaraj@users.noreply.github.com>
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@rajkumar-rangaraj
Copilot and rajkumar-rangaraj authored Mar 27, 2026
commit 596b32a4022b6f8b48b42728fcaf167fb3143272
6 changes: 3 additions & 3 deletions ...osoft.ApplicationInsights.Test/Microsoft.ApplicationInsights.Tests/TelemetryClientTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -256,7 +256,7 @@ public void TrackAvailabilitySendsAvailabilityTelemetryWithAllParameters()
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.success" && a.Value?.ToString() == success.ToString());
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.runLocation" && a.Value?.ToString() == runLocation);
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.message" && a.Value?.ToString() == message);
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.testTimestamp" && a.Value?.ToString() == timeStamp.ToString("o"));
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.testTimestamp" && a.Value?.ToString() == timeStamp.UtcDateTime.ToString("o"));
Assert.Contains(logRecord.Attributes, a => a.Key == "Environment" && a.Value?.ToString() == "Production");
}

Expand Down Expand Up @@ -304,7 +304,7 @@ public void TrackAvailabilityWithAvailabilityTelemetryObject()
Assert.Contains(logRecord.Attributes, a => a.Key == "CustomProp" && a.Value?.ToString() == "CustomValue");

// Verify timestamp is preserved
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.testTimestamp" && a.Value?.ToString() == timeStamp.ToString("o"));
Assert.Contains(logRecord.Attributes, a => a.Key == "microsoft.availability.testTimestamp" && a.Value?.ToString() == timeStamp.UtcDateTime.ToString("o"));
}

[Fact]
Expand Down Expand Up @@ -381,7 +381,7 @@ public void TrackAvailabilityPreservesUserSpecifiedTimestamp()
// Verify the user-specified timestamp is included as a property
var timestampAttr = logRecord.Attributes.FirstOrDefault(a => a.Key == "microsoft.availability.testTimestamp");
Assert.NotNull(timestampAttr.Value);
Assert.Equal(specificTimestamp.ToString("o"), timestampAttr.Value?.ToString());
Assert.Equal(specificTimestamp.UtcDateTime.ToString("o"), timestampAttr.Value?.ToString());
}

[Fact]
Expand Down
2 changes: 1 addition & 1 deletion BASE/src/Microsoft.ApplicationInsights/TelemetryClient.cs
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Expand Up @@ -255,7 +255,7 @@ public void TrackAvailability(AvailabilityTelemetry telemetry)

if (telemetry.Timestamp != default)
{
properties.Add("microsoft.availability.testTimestamp", telemetry.Timestamp.ToString("o"));
properties.Add("microsoft.availability.testTimestamp", telemetry.Timestamp.UtcDateTime.ToString("o"));
}

// Add custom properties from telemetry
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