[Synapse] CanCheckPrincipalAccess failing in nightly runs

[AFengKK]

Synapse nightly test runs are failing with:

Error message Expected string length 7 but was 10. Strings differ at index 0. Expected: "Allowed" But was: "NotAllowed" -----------^

Stack trace at Azure.Analytics.Synapse.AccessControl.Tests.AccessControlClientLiveTests.CanCheckPrincipalAccess() in D:\a_work\1\s\sdk\synapse\Azure.Analytics.Synapse.AccessControl\tests\AccessControlClientLiveTests.cs:line 259 at Azure.Analytics.Synapse.AccessControl.Tests.AccessControlClientLiveTests.CanCheckPrincipalAccess() in D:\a_work\1\s\sdk\synapse\Azure.Analytics.Synapse.AccessControl\tests\AccessControlClientLiveTests.cs:line 266 at NUnit.Framework.Internal.TaskAwaitAdapter.GenericAdapter1.BlockUntilCompleted() at NUnit.Framework.Internal.MessagePumpStrategy.NoMessagePumpStrategy.WaitForCompletion(AwaitAdapter awaiter) at NUnit.Framework.Internal.AsyncToSyncAdapter.Await(Func1 invoke) at NUnit.Framework.Internal.Commands.TestMethodCommand.RunTestMethod(TestExecutionContext context) at NUnit.Framework.Internal.Commands.TestMethodCommand.Execute(TestExecutionContext context) at NUnit.Framework.Internal.Commands.BeforeAndAfterTestCommand.<>c__DisplayClass1_0.b__0() at NUnit.Framework.Internal.Commands.BeforeAndAfterTestCommand.RunTestMethodInThreadAbortSafeZone(TestExecutionContext context, Action action)

For more details check here:

• https://dev.azure.com/azure-sdk/internal/_build/results?buildId=1838923&view=results

@jsquire for notification.

[azure-sdk]

Label prediction was below confidence level 0.6 for Model:ServiceLabels: 'Synapse:0.36635733,Azure.Identity:0.27942947,Network - Front Door:0.07938421'

[jsquire]

Duplicate of #30906.