Discard asserted probe-task return values without joining loops

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip.Tests/AbCipReinitializeReleasesStateTests.cs

@@ -39,7 +39,7 @@ public sealed class AbCipReinitializeReleasesStateTests
         }
         var firstTag = factory.Tags["@raw_cpu_type"];
         var firstLoop = first.ProbeTask;
-        firstLoop.ShouldNotBeNull();
+        _ = firstLoop.ShouldNotBeNull();
         firstLoop!.IsCompleted.ShouldBeFalse();
         firstTag.Disposed.ShouldBeFalse();
 

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.Tests/AbLegacyReinitializeReleasesStateTests.cs

@@ -35,7 +35,7 @@ public sealed class AbLegacyReinitializeReleasesStateTests
         }
         var firstTag = factory.Tags["S:0"];
         var firstLoop = first.ProbeTask;
-        firstLoop.ShouldNotBeNull();
+        _ = firstLoop.ShouldNotBeNull();
         firstLoop!.IsCompleted.ShouldBeFalse();
         firstTag.Disposed.ShouldBeFalse();
 

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.Tests/FocasReinitializeReleasesStateTests.cs

@@ -31,7 +31,7 @@ public sealed class FocasReinitializeReleasesStateTests
         // Positive control: the first state's probe loop is demonstrably running and holds a live client.
         await WaitUntilAsync(() => factory.Clients.Count > 0 && factory.Clients[0].IsConnected);
         var firstLoop = first.ProbeTask;
-        firstLoop.ShouldNotBeNull();
+        _ = firstLoop.ShouldNotBeNull();
         firstLoop!.IsCompleted.ShouldBeFalse();
         var firstClient = factory.Clients[0];
 
@@ -41,7 +41,7 @@ public sealed class FocasReinitializeReleasesStateTests
         firstClient.DisposeCount.ShouldBeGreaterThanOrEqualTo(1);
         firstClient.IsConnected.ShouldBeFalse();
         drv.GetDeviceState(host).ShouldNotBeSameAs(first);
-        drv.GetDeviceState(host)!.ProbeTask.ShouldNotBeNull(); // the new state is running
+        _ = drv.GetDeviceState(host)!.ProbeTask.ShouldNotBeNull(); // the new state is running
 
         await drv.ShutdownAsync(CancellationToken.None);
     }

tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests/TwinCATReinitializeReleasesStateTests.cs

@@ -33,7 +33,7 @@ public sealed class TwinCATReinitializeReleasesStateTests
         }
         var firstClient = factory.Clients[0];
         var firstLoop = first.ProbeTask;
-        firstLoop.ShouldNotBeNull();
+        _ = firstLoop.ShouldNotBeNull();
         firstLoop!.IsCompleted.ShouldBeFalse();
 
         await drv.InitializeAsync("{}", CancellationToken.None);