feat(health): metrics-stale signal + status-transition timestamps; spec now matches heartbeat-liveness code

2026-07-08 16:21:30 -04:00
parent 15d91d760f
commit c73b7faa11
7 changed files with 199 additions and 16 deletions
@@ -70,4 +70,27 @@ public class HealthMonitoringOptionsValidatorTests
        Assert.True(result.Failed);
        Assert.Contains("CentralOfflineTimeout", result.FailureMessage);
    }
+
+    [Fact]
+    public void ZeroMetricsStaleTimeout_IsRejected()
+    {
+        var result = Validate(new HealthMonitoringOptions { MetricsStaleTimeout = TimeSpan.Zero });
+
+        Assert.True(result.Failed);
+        Assert.Contains("MetricsStaleTimeout", result.FailureMessage);
+    }
+
+    [Fact]
+    public void MetricsStaleTimeout_ShorterThanReportInterval_IsRejected()
+    {
+        // A stale window shorter than one report interval flags every site.
+        var result = Validate(new HealthMonitoringOptions
+        {
+            ReportInterval = TimeSpan.FromSeconds(30),
+            MetricsStaleTimeout = TimeSpan.FromSeconds(10)
+        });
+
+        Assert.True(result.Failed);
+        Assert.Contains("MetricsStaleTimeout", result.FailureMessage);
+    }
 }