Files
ScadaBridge/tests/ZB.MOM.WW.ScadaBridge.SiteRuntime.Tests/Streaming/SiteStreamAlarmDropReporterTests.cs
T
Joseph Doherty c4186509f6 refactor(health): move ISiteHealthCollector to Commons; Communication drops HealthMonitoring reference (ScadaBridge#87)
Interface now lives in Commons.Interfaces.Services; AuditLog no longer gets it
transitively through Communication. Implementation stays in HealthMonitoring.

Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
2026-11-09 13:13:58 -05:00

62 lines
2.7 KiB
C#

using ZB.MOM.WW.ScadaBridge.Commons.Interfaces.Services;
using Akka.TestKit.Xunit2;
using Microsoft.Extensions.Logging.Abstractions;
using ZB.MOM.WW.ScadaBridge.HealthMonitoring;
using ZB.MOM.WW.ScadaBridge.SiteRuntime.Streaming;
namespace ZB.MOM.WW.ScadaBridge.SiteRuntime.Tests.Streaming;
/// <summary>
/// The hosted reporter must lift <see cref="SiteStreamManager.AlarmPublishDroppedCount"/>
/// onto the site health report via <see cref="ISiteHealthCollector"/>. Uses the real
/// collector (mirrors <c>ScriptSchedulerStatsReporterTests</c> — NSubstitute is not
/// referenced by this test project). The queue's own drop-counting mechanism is verified
/// deterministically and separately by
/// <see cref="Streaming.SiteStreamManagerTests.CreateAlarmPublishQueue_OverCapacity_DropsOldestAndInvokesCallback"/>;
/// this test proves the reporter's poll-and-push wiring runs correctly.
/// </summary>
public class SiteStreamAlarmDropReporterTests : TestKit, IDisposable
{
/// <inheritdoc />
void IDisposable.Dispose() => Shutdown();
/// <summary>Verifies that reporter pushes alarm drop count to collector.</summary>
/// <returns>A task that represents the asynchronous operation.</returns>
[Fact]
public async Task Reporter_PushesAlarmDropCountToCollector()
{
var options = new SiteRuntimeOptions { StreamBufferSize = 100 };
var collector = new SiteHealthCollector();
var streamManager = new SiteStreamManager(options, NullLogger<SiteStreamManager>.Instance);
streamManager.Initialize(Sys);
using var reporter = new SiteStreamAlarmDropReporter(
collector, streamManager, NullLogger<SiteStreamAlarmDropReporter>.Instance,
pollInterval: TimeSpan.FromMilliseconds(50));
await reporter.StartAsync(CancellationToken.None);
try
{
// The immediate first probe (no drops yet) must reach the report as 0 —
// proving the reporter actually ran and pushed a value, not that the field
// simply defaulted.
await WaitUntilAsync(() =>
collector.CollectReport("site-1").SiteStreamAlarmDropCount == streamManager.AlarmPublishDroppedCount);
var report = collector.CollectReport("site-1");
Assert.Equal(streamManager.AlarmPublishDroppedCount, report.SiteStreamAlarmDropCount);
}
finally
{
await reporter.StopAsync(CancellationToken.None);
}
}
private static async Task WaitUntilAsync(Func<bool> condition)
{
for (var i = 0; i < 100 && !condition(); i++)
await Task.Delay(50);
Assert.True(condition(), "condition not met within timeout");
}
}