diff --git a/sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/tests/EventHubsTargetScalerTests.cs b/sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/tests/EventHubsTargetScalerTests.cs
index a8a3c82c6ead..f355e50a361e 100644
--- a/sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/tests/EventHubsTargetScalerTests.cs
+++ b/sdk/eventhub/Microsoft.Azure.WebJobs.Extensions.EventHubs/tests/EventHubsTargetScalerTests.cs
@@ -83,6 +83,7 @@ public void ThrottleScaleDownIfNecessaryInternal_ReturnsExpected(int currentTarg
         [TestCase(60, 10, 10)]
         [TestCase(70, 10, 10)]
         [TestCase(150, 10, 10)]
+        [TestCase(2147483650, 1, 1)] // Testing eventCount > int.MaxInt is 2147483647
         public void GetScaleResultInternal_ReturnsExpected(long eventCount, int partitionCount, int expectedTargetWorkerCount)
         {
             TargetScalerResult result = _targetScaler.GetScaleResultInternal(new TargetScalerContext { }, eventCount, partitionCount);