# TransactionConcurrencyTestRunnerxUnit.TransactionTreeTest(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#L51)

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

Single transaction containing two grains is dependent on two other transaction, one from each grain

### Parameters

- `grainStates` (`string`)