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feat: add latency tracking for service import request-reply

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This commit is contained in:
Joseph Doherty
2026-02-23 06:03:37 -05:00
parent 4450c27381
commit 86283a7f97
2 changed files with 69 additions and 0 deletions
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22
tests/NATS.Server.Tests/ResponseRoutingTests.cs
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@@ -124,4 +124,26 @@ public class ResponseRoutingTests
resp2.To.ShouldBe("_INBOX.reply2");
resp1.From.ShouldNotBe(resp2.From);
}
[Fact]
public void LatencyTracker_should_sample_respects_percentage()
{
var latency = new ServiceLatency { SamplingPercentage = 0, Subject = "latency.test" };
LatencyTracker.ShouldSample(latency).ShouldBeFalse();
var latency100 = new ServiceLatency { SamplingPercentage = 100, Subject = "latency.test" };
LatencyTracker.ShouldSample(latency100).ShouldBeTrue();
}
[Fact]
public void LatencyTracker_builds_latency_message()
{
var msg = LatencyTracker.BuildLatencyMsg("requester", "responder",
TimeSpan.FromMilliseconds(5), TimeSpan.FromMilliseconds(10));
msg.Requestor.ShouldBe("requester");
msg.Responder.ShouldBe("responder");
msg.ServiceLatencyNanos.ShouldBeGreaterThan(0);
msg.TotalLatencyNanos.ShouldBeGreaterThan(0);
}
}