fix(ui): reentrancy guard on Health/AlarmSummary poll timers (arch-review S3)

Claude-Session: https://claude.ai/code/session_01MtdgwpEeCUn6cUA5f1LMPj
2026-07-10 05:01:27 -04:00
parent bd6c310825
commit adc488a9f9
4 changed files with 50 additions and 4 deletions
@@ -0,0 +1,17 @@
+using ZB.MOM.WW.ScadaBridge.CentralUI.Services;
+using Xunit;
+
+namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests;
+
+public class PollGateTests
+{
+    [Fact]
+    public void TryEnter_SecondCallWhileHeld_ReturnsFalse()
+    {
+        var gate = new PollGate();
+        Assert.True(gate.TryEnter());
+        Assert.False(gate.TryEnter());
+        gate.Exit();
+        Assert.True(gate.TryEnter());
+    }
+}