# TransactionConcurrencyTestRunnerxUnit.SingleSharedGrainTest(string)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.transactions.testkit.xunit/orleans.transactions.testkit.xunit.transactionconcurrencytestrunnerxunit/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.transactions.testkit.xunit/orleans.transactions.testkit.xunit.transactionconcurrencytestrunnerxunit/methods/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Orleans.Transactions.TestKit.xUnit/TransactionConcurrencyTestRunner.cs#L23)

```csharp
public override Task SingleSharedGrainTest(string grainStates)
```

Two transaction share a single grain

### Parameters

- `grainStates` (`string`)