Joseph Doherty
82 lines
3.2 KiB
C#
82 lines
3.2 KiB
C#
using MxGateway.Server.Metrics;
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namespace MxGateway.Tests.Metrics;
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public sealed class GatewayMetricsTests
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{
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[Fact]
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public void GetSnapshot_ReflectsSessionWorkerCommandEventAndFaultUpdates()
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{
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using GatewayMetrics metrics = new();
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metrics.SessionOpened();
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metrics.WorkerStarted(TimeSpan.FromMilliseconds(250));
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metrics.CommandStarted("Register");
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metrics.CommandSucceeded("Register", TimeSpan.FromMilliseconds(10));
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metrics.CommandStarted("WriteSecured");
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metrics.CommandFailed("WriteSecured", "AuthorizationFailed", TimeSpan.FromMilliseconds(12));
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metrics.EventReceived("session-1", "OnDataChange");
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metrics.EventReceived("session-1", "OnDataChange");
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metrics.SetWorkerEventQueueDepth(7);
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metrics.AdjustGrpcEventStreamQueueDepth(3);
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metrics.QueueOverflow("session-events");
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metrics.Fault("CommandTimeout");
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metrics.WorkerKilled("CommandTimeout");
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metrics.WorkerStopped("Killed");
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metrics.HeartbeatFailed("session-1");
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metrics.StreamDisconnected("ClientCancelled");
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metrics.SessionClosed();
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GatewayMetricsSnapshot snapshot = metrics.GetSnapshot();
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Assert.Equal(0, snapshot.OpenSessions);
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Assert.Equal(0, snapshot.WorkersRunning);
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Assert.Equal(7, snapshot.WorkerEventQueueDepth);
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Assert.Equal(3, snapshot.GrpcEventStreamQueueDepth);
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Assert.Equal(1, snapshot.SessionsOpened);
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Assert.Equal(1, snapshot.SessionsClosed);
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Assert.Equal(2, snapshot.CommandsStarted);
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Assert.Equal(1, snapshot.CommandsSucceeded);
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Assert.Equal(1, snapshot.CommandsFailed);
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Assert.Equal(2, snapshot.EventsReceived);
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Assert.Equal(1, snapshot.QueueOverflows);
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Assert.Equal(1, snapshot.Faults);
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Assert.Equal(1, snapshot.WorkerKills);
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Assert.Equal(1, snapshot.WorkerExits);
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Assert.Equal(1, snapshot.HeartbeatFailures);
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Assert.Equal(1, snapshot.StreamDisconnects);
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Assert.Equal(1, snapshot.CommandFailuresByMethod["WriteSecured"]);
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Assert.Equal(2, snapshot.EventsByFamily["OnDataChange"]);
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Assert.Equal(2, snapshot.EventsBySession["session-1"]);
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}
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[Fact]
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public void SetEventQueueDepth_RejectsNegativeDepth()
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{
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using GatewayMetrics metrics = new();
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ArgumentOutOfRangeException exception = Assert.Throws<ArgumentOutOfRangeException>(
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() => metrics.SetWorkerEventQueueDepth(-1));
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Assert.Equal("depth", exception.ParamName);
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}
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[Fact]
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public void RemoveSessionEvents_RemovesOnlyThatSession()
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{
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using GatewayMetrics metrics = new();
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metrics.EventReceived("session-1", "OnDataChange");
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metrics.EventReceived("session-2", "OnWriteComplete");
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metrics.RemoveSessionEvents("session-1");
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GatewayMetricsSnapshot snapshot = metrics.GetSnapshot();
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Assert.Equal(2, snapshot.EventsReceived);
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Assert.False(snapshot.EventsBySession.ContainsKey("session-1"));
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Assert.Equal(1, snapshot.EventsBySession["session-2"]);
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Assert.Equal(1, snapshot.EventsByFamily["OnDataChange"]);
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Assert.Equal(1, snapshot.EventsByFamily["OnWriteComplete"]);
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}
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}
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