Report ransomware sensor coverage in beta

tests/OCSentinelCli.Tests/RansomwareBetaTests.cs

@@ -1,4 +1,5 @@
 using System.Runtime.Versioning;
+using System.Text.Json;
 using Xunit;
 
 namespace OCSentinelCli.Tests;
@@ -13,6 +14,30 @@ public sealed class RansomwareBetaTests
         Assert.False(new ScannerConfiguration().RansomwareBetaAlertingEnabled);
     }
 
+    [Fact]
+    public void DisabledRansomwareBetaDoesNotReportSensorCoverage()
+    {
+        var summary = RansomwareBetaDetector.Scan(new ScannerConfiguration { RansomwareBetaEnabled = false }, []);
+
+        Assert.False(summary.Enabled);
+        Assert.Empty(summary.Sensors);
+    }
+
+    [Fact]
+    public void SensorCoverageIsIncludedInTheJsonReport()
+    {
+        var summary = new RansomwareBetaSummary
+        {
+            Enabled = true,
+            Sensors = [new RansomwareSensorStatus { Name = "security-process-4688", Enabled = true, Available = true, State = "available", EventCount = 4 }]
+        };
+
+        string json = JsonSerializer.Serialize(summary, JsonOptions.Default);
+
+        Assert.Contains("\"Sensors\"", json);
+        Assert.Contains("security-process-4688", json);
+    }
+
     [Fact]
     public void FileChurnBelowBothThresholdsDoesNotCreateSignal()
     {