test: pass TestContext.Current.CancellationToken at xUnit1051 call sites (analyzer code fix, 451 sites) (lmxopcua#725)

Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV

tests/Core/ZB.MOM.WW.OtOpcUa.Core.ScriptedAlarms.Tests/ScriptedAlarmEngineTests.cs

@@ -215,7 +215,7 @@ public sealed class ScriptedAlarmEngineTests
         eng.OnEvent += (_, e) => events.Add(e);
 
         up.Push("Temp", 150);
-        await Task.Delay(200);
+        await Task.Delay(200, TestContext.Current.CancellationToken);
 
         events.Any(e => e.Emission == EmissionKind.Activated).ShouldBeFalse(
             "OneShot shelve suppresses activation emission");
@@ -252,7 +252,7 @@ public sealed class ScriptedAlarmEngineTests
 
         await eng.DisableAsync("HighTemp", "alice", TestContext.Current.CancellationToken);
         up.Push("Temp", 150);
-        await Task.Delay(100);
+        await Task.Delay(100, TestContext.Current.CancellationToken);
         eng.GetState("HighTemp")!.Active.ShouldBe(AlarmActiveState.Inactive,
             "disabled alarm ignores predicate");
 
@@ -353,7 +353,7 @@ public sealed class ScriptedAlarmEngineTests
                 up.Push($"Temp{round % alarmCount}", round % 2 == 0 ? 150 : 50);
                 round++;
             }
-        });
+        }, TestContext.Current.CancellationToken);
 
         // Readers: continuously touch the three unguarded read paths.
         var readers = Enumerable.Range(0, 4).Select(_reader => Task.Run(() =>
@@ -839,7 +839,7 @@ public sealed class ScriptedAlarmEngineTests
 
         // Dispose must wait for the in-flight reevaluation to complete rather
         // than returning while a background task still runs.
-        var disposeTask = Task.Run(() => eng.Dispose());
+        var disposeTask = Task.Run(() => eng.Dispose(), TestContext.Current.CancellationToken);
 
         // Verify Dispose does NOT complete immediately — it should block waiting
         // for the in-flight task. Without the -006 fix Dispose returns straight
@@ -1003,7 +1003,7 @@ public sealed class ScriptedAlarmEngineTests
         // load could keep firing between the failed second load and Dispose.
         // After the fix, it is stopped at the START of every LoadAsync attempt
         // (successful or not), so Dispose always finds a clean timer state.
-        var disposeTask = Task.Run(() => eng.Dispose());
+        var disposeTask = Task.Run(() => eng.Dispose(), TestContext.Current.CancellationToken);
         await disposeTask.WaitAsync(TimeSpan.FromSeconds(3), TestContext.Current.CancellationToken);
         // If Dispose threw or hung, the WaitAsync would surface it.
     }
@@ -1748,12 +1748,12 @@ public sealed class ScriptedAlarmEngineTests
         eng.TrackBackgroundTaskForTest(() => gate.Task);
         eng.InFlightCountForTest.ShouldBe(1);
 
-        var disposeTask = Task.Run(() => eng.Dispose());
+        var disposeTask = Task.Run(() => eng.Dispose(), TestContext.Current.CancellationToken);
         var raced = await Task.WhenAny(disposeTask, Task.Delay(300));
         raced.ShouldNotBe(disposeTask, "Dispose must not return while registered background work is still running");
 
         gate.SetResult();
-        await disposeTask.WaitAsync(TimeSpan.FromSeconds(5));
+        await disposeTask.WaitAsync(TimeSpan.FromSeconds(5), TestContext.Current.CancellationToken);
         eng.InFlightCountForTest.ShouldBe(0, "completed work must unregister itself");
     }
 
@@ -1785,7 +1785,7 @@ public sealed class ScriptedAlarmEngineTests
             () => throw new InvalidOperationException("factory failed (test)")));
 
         eng.InFlightCountForTest.ShouldBe(0, "work that never started must not be left registered");
-        await Task.Run(() => eng.Dispose()).WaitAsync(TimeSpan.FromSeconds(5));
+        await Task.Run(() => eng.Dispose(), TestContext.Current.CancellationToken).WaitAsync(TimeSpan.FromSeconds(5), TestContext.Current.CancellationToken);
     }
 
     /// <summary>Verifies a faulted background task is still drained by Dispose and its failure is
@@ -1801,11 +1801,11 @@ public sealed class ScriptedAlarmEngineTests
 
         // Fault it while Dispose is actually blocked on the drain, so the WhenAll observes
         // the failure rather than finding an already-unregistered task.
-        var disposeTask = Task.Run(() => Should.NotThrow(() => eng.Dispose()));
-        await Task.Delay(200);
+        var disposeTask = Task.Run(() => Should.NotThrow(() => eng.Dispose()), TestContext.Current.CancellationToken);
+        await Task.Delay(200, TestContext.Current.CancellationToken);
         gate.SetException(new InvalidOperationException("background failed (test)"));
 
-        await disposeTask.WaitAsync(TimeSpan.FromSeconds(5));
+        await disposeTask.WaitAsync(TimeSpan.FromSeconds(5), TestContext.Current.CancellationToken);
         eng.InFlightCountForTest.ShouldBe(0);
     }