# MembershipTableTestRunner.UpdateRow_MutatingInputAndSuspectList_DoesNotMutateStoredState(CancellationToken)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.clustering.testkit/orleans.clustering.testkit.membershiptabletestrunner/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.clustering.testkit/orleans.clustering.testkit.membershiptabletestrunner/methods/)

[Source](https://github.com/dotnet/orleans/blob/8bc9fd244427351ad24ccc039a9e7642a42c1cc4/src/Orleans.Clustering.TestKit/MembershipTableTestRunner.cs#L286-L293)

```csharp
public Task UpdateRow_MutatingInputAndSuspectList_DoesNotMutateStoredState(CancellationToken cancellationToken = default(CancellationToken))
```

G18: updated caller entry and nested suspect-list aliases cannot mutate storage.

### Parameters

- `cancellationToken` (`CancellationToken`)