public void TestListTableNamesLists()
{
var factory = new ValueFactory();
var tables = new List <string>()
{
"table1", "table2"
};
var ions = tables.Select(t => CreateValueHolder(factory.NewString(t))).ToList();
var h1 = QldbHash.ToQldbHash(TestTransactionId);
h1 = Transaction.Dot(h1, QldbDriverBase <QldbSession> .TableNameQuery, new List <IIonValue> {
});
mockClient.QueueResponse(StartSessionResponse(TestRequestId));
mockClient.QueueResponse(StartTransactionResponse(TestTransactionId, TestRequestId));
mockClient.QueueResponse(ExecuteResponse(TestRequestId, ions));
mockClient.QueueResponse(CommitResponse(TestTransactionId, TestRequestId, h1.Hash));
var result = testDriver.ListTableNames();
Assert.IsNotNull(result);
CollectionAssert.AreEqual(tables, result.ToList());
mockClient.Clear();
}
public async Task Execute_HaveOCCExceptionsAndAbortFailuresWithinRetryLimit_Succeeded()
{
var mockCreator = new Mock <Func <Task <Session> > >();
var mockSession = new Mock <Session>(null, null, null, null, null);
mockCreator.Setup(x => x()).ReturnsAsync(mockSession.Object);
var retry = new Mock <Func <int, Task> >();
var sendCommandResponseStart = new StartTransactionResult
{
TransactionId = "testTransactionIdddddd"
};
var h1 = QldbHash.ToQldbHash("testTransactionIdddddd");
var sendCommandResponseCommit = new CommitTransactionResult
{
CommitDigest = new MemoryStream(h1.Hash),
TransactionId = "testTransactionIdddddd"
};
var abortResponse = new AbortTransactionResult {
};
var serviceException = new AmazonServiceException();
mockSession.Setup(x => x.StartTransaction(It.IsAny <CancellationToken>()))
.ReturnsAsync(sendCommandResponseStart);
mockSession.Setup(x => x.CommitTransaction(It.IsAny <string>(), It.IsAny <MemoryStream>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(sendCommandResponseCommit);
mockSession.SetupSequence(x => x.AbortTransaction(It.IsAny <CancellationToken>()))
.ThrowsAsync(serviceException)
.ReturnsAsync(abortResponse)
.ThrowsAsync(serviceException);
var mockFunction = new Mock <Func <TransactionExecutor, Task <int> > >();
mockFunction.SetupSequence(f => f.Invoke(It.IsAny <TransactionExecutor>()))
.ThrowsAsync(new OccConflictException("occ"))
.ThrowsAsync(new OccConflictException("occ"))
.ThrowsAsync(new OccConflictException("occ"))
.ReturnsAsync(1);
var mockRetry = new Mock <Action <int> >();
var pool = new SessionPool(mockCreator.Object, QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 2, NullLogger.Instance);
var session1 = await pool.GetSession();
var session2 = await pool.GetSession();
session1.Release();
session2.Release();
await pool.Execute(mockFunction.Object, Driver.RetryPolicy.Builder().Build(), retry.Object);
mockCreator.Verify(x => x(), Times.Exactly(2));
retry.Verify(r => r.Invoke(It.IsAny <int>()), Times.Exactly(3));
Assert.AreEqual(2, pool.AvailablePermit());
}
private CommitTransactionResult GetTransactionResult(string txnId)
{
var hashBytes = QldbHash.ToQldbHash(txnId).Hash;
CommitTransactionResult commitTransactionResult = new CommitTransactionResult
{
TransactionId = txnId,
CommitDigest = new MemoryStream(hashBytes)
};
return(commitTransactionResult);
}
public void TestExecute_RetryOnExceptions(
Driver.RetryPolicy policy,
IList <Exception> exceptions,
bool expectThrow,
Times retryActionCalledTimes)
{
string statement = "DELETE FROM table;";
var h1 = QldbHash.ToQldbHash(TestTransactionId);
h1 = Transaction.Dot(h1, statement, new List <IIonValue> {
});
mockClient.QueueResponse(StartSessionResponse(TestRequestId));
mockClient.QueueResponse(StartTransactionResponse(TestTransactionId, TestRequestId));
foreach (var ex in exceptions)
{
mockClient.QueueResponse(ex);
// OccConflictException reuses the session so no need for another start session.
if (ex is not OccConflictException)
{
mockClient.QueueResponse(StartSessionResponse(TestRequestId));
}
mockClient.QueueResponse(StartTransactionResponse(TestTransactionId, TestRequestId));
}
mockClient.QueueResponse(ExecuteResponse(TestRequestId, null));
mockClient.QueueResponse(CommitResponse(TestTransactionId, TestRequestId, h1.Hash));
var retry = new Mock <Action <int> >();
try
{
testDriver.Execute(txn => txn.Execute(statement), policy, retry.Object);
Assert.IsFalse(expectThrow);
}
catch (Exception e)
{
Assert.IsTrue(expectThrow);
Assert.IsTrue(exceptions.Count > 0);
// The exception should be the same type as the last exception in our exception list.
Exception finalException = exceptions[exceptions.Count - 1];
Type expectedExceptionType = finalException.GetType();
Assert.IsInstanceOfType(e, expectedExceptionType);
}
retry.Verify(r => r.Invoke(It.IsAny <int>()), retryActionCalledTimes);
mockClient.Clear();
}
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
internal static async Task <CommitTransactionResult> GetAsyncTransactionResult(string txnId)
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
{
var hashBytes = QldbHash.ToQldbHash(txnId).Hash;
CommitTransactionResult commitTransactionResult = new CommitTransactionResult
{
TransactionId = txnId,
CommitDigest = new MemoryStream(hashBytes)
};
return(commitTransactionResult);
}
public void Execute_HaveISE_Succeeded()
{
var mockCreator = new Mock <Func <Session> >();
var mockSession = new Mock <Session>(null, null, null, null, null);
mockCreator.Setup(x => x()).Returns(mockSession.Object);
var retry = new Mock <Action <int> >();
var sendCommandResponseStart = new StartTransactionResult
{
TransactionId = "testTransactionIdddddd"
};
var h1 = QldbHash.ToQldbHash("testTransactionIdddddd");
var sendCommandResponseCommit = new CommitTransactionResult
{
CommitDigest = new MemoryStream(h1.Hash),
TransactionId = "testTransactionIdddddd"
};
mockSession.Setup(x => x.StartTransaction())
.Returns(sendCommandResponseStart);
mockSession.Setup(x => x.CommitTransaction(It.IsAny <string>(), It.IsAny <MemoryStream>()))
.Returns(sendCommandResponseCommit);
var mockFunction = new Mock <Func <TransactionExecutor, int> >();
mockFunction.SetupSequence(f => f.Invoke(It.IsAny <TransactionExecutor>()))
.Throws(new InvalidSessionException("invalid"))
.Throws(new InvalidSessionException("invalid"))
.Throws(new InvalidSessionException("invalid"))
.Throws(new InvalidSessionException("invalid"))
.Returns(1);
var mockRetry = new Mock <Action <int> >();
var pool = new SessionPool(mockCreator.Object, QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 2, NullLogger.Instance);
var session1 = pool.GetSession();
var session2 = pool.GetSession();
session1.Release();
session2.Release();
pool.Execute(mockFunction.Object, Driver.RetryPolicy.Builder().Build(), retry.Object);
mockCreator.Verify(x => x(), Times.Exactly(6));
retry.Verify(r => r.Invoke(It.IsAny <int>()), Times.Exactly(4));
Assert.AreEqual(2, pool.AvailablePermit());
}
public void Execute_HaveOCCExceptionsAboveRetryLimit_ThrowOCC()
{
var mockCreator = new Mock <Func <Session> >();
var mockSession = new Mock <Session>(null, null, null, null, null);
mockCreator.Setup(x => x()).Returns(mockSession.Object);
var retry = new Mock <Action <int> >();
var sendCommandResponseStart = new StartTransactionResult
{
TransactionId = "testTransactionIdddddd"
};
var h1 = QldbHash.ToQldbHash("testTransactionIdddddd");
var sendCommandResponseCommit = new CommitTransactionResult
{
CommitDigest = new MemoryStream(h1.Hash),
TransactionId = "testTransactionIdddddd"
};
mockSession.Setup(x => x.StartTransaction())
.Returns(sendCommandResponseStart);
mockSession.Setup(x => x.CommitTransaction(It.IsAny <string>(), It.IsAny <MemoryStream>()))
.Returns(sendCommandResponseCommit);
var mockFunction = new Mock <Func <TransactionExecutor, int> >();
mockFunction.SetupSequence(f => f.Invoke(It.IsAny <TransactionExecutor>()))
.Throws(new OccConflictException("occ"))
.Throws(new OccConflictException("occ"))
.Throws(new OccConflictException("occ"))
.Throws(new OccConflictException("occ"))
.Throws(new OccConflictException("occ"));
var mockRetry = new Mock <Action <int> >();
var pool = new SessionPool(mockCreator.Object, QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 1, NullLogger.Instance);
Assert.ThrowsException <OccConflictException>(() => pool.Execute(mockFunction.Object, Driver.RetryPolicy.Builder().Build(), retry.Object));
mockCreator.Verify(x => x(), Times.Once);
retry.Verify(r => r.Invoke(It.IsAny <int>()), Times.Exactly(4));
}
public void Execute_NoException_ReturnFunctionValue()
{
var mockCreator = new Mock <Func <Session> >();
var mockSession = new Mock <Session>(null, null, null, null, null);
mockCreator.Setup(x => x()).Returns(mockSession.Object);
var retry = new Mock <Action <int> >();
var sendCommandResponseStart = new StartTransactionResult
{
TransactionId = "testTransactionIdddddd"
};
var h1 = QldbHash.ToQldbHash("testTransactionIdddddd");
var sendCommandResponseCommit = new CommitTransactionResult
{
CommitDigest = new MemoryStream(h1.Hash),
TransactionId = "testTransactionIdddddd"
};
mockSession.Setup(x => x.StartTransaction())
.Returns(sendCommandResponseStart);
mockSession.Setup(x => x.CommitTransaction(It.IsAny <string>(), It.IsAny <MemoryStream>()))
.Returns(sendCommandResponseCommit);
var mockFunction = new Mock <Func <TransactionExecutor, int> >();
mockFunction.Setup(f => f.Invoke(It.IsAny <TransactionExecutor>())).Returns(1);
var mockRetry = new Mock <Action <int> >();
var pool = new SessionPool(mockCreator.Object, QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 1, NullLogger.Instance);
pool.Execute(mockFunction.Object, Driver.RetryPolicy.Builder().Build(), retry.Object);
mockCreator.Verify(x => x(), Times.Once);
retry.Verify(r => r.Invoke(It.IsAny <int>()), Times.Never);
}
public async Task Execute_ExceptionOnExecute_ShouldOnlyRetryOnISEAndTAOE(Exception exception, bool expectThrow)
{
var statement = "DELETE FROM table;";
var h1 = QldbHash.ToQldbHash(TestTransactionId);
h1 = Transaction.Dot(h1, statement, new List <IIonValue> {
});
var sendCommandResponseWithStartSession = new SendCommandResponse
{
StartTransaction = new StartTransactionResult
{
TransactionId = TestTransactionId
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var sendCommandResponseExecute = new SendCommandResponse
{
ExecuteStatement = new ExecuteStatementResult
{
FirstPage = new Page
{
NextPageToken = null
}
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var sendCommandResponseCommit = new SendCommandResponse
{
CommitTransaction = new CommitTransactionResult
{
TransactionId = TestTransactionId,
CommitDigest = new MemoryStream(h1.Hash),
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var mockCreator = new Mock <Func <Task <Session> > >();
var mockSession = new Mock <Session>(null, null, null, null, null);
mockSession.Setup(x => x.StartTransaction(It.IsAny <CancellationToken>())).ReturnsAsync(sendCommandResponseWithStartSession.StartTransaction);
mockSession.SetupSequence(x => x.ExecuteStatement(It.IsAny <String>(), It.IsAny <String>(), It.IsAny <List <IIonValue> >(), It.IsAny <CancellationToken>()))
.ThrowsAsync(exception)
.ThrowsAsync(exception)
.ReturnsAsync(sendCommandResponseExecute.ExecuteStatement);
mockSession.Setup(x => x.CommitTransaction(It.IsAny <String>(), It.IsAny <MemoryStream>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(sendCommandResponseCommit.CommitTransaction);
mockCreator.Setup(x => x()).ReturnsAsync(mockSession.Object);
var driver = new QldbDriver(
new SessionPool(mockCreator.Object, QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 4, NullLogger.Instance));
try
{
await driver.Execute(txn => txn.Execute(statement));
}
catch (Exception e)
{
Assert.AreEqual(exception, e);
Assert.IsTrue(expectThrow);
return;
}
Assert.IsFalse(expectThrow);
}
public async Task TestListTableNamesLists()
{
var factory = new ValueFactory();
var tables = new List <string>()
{
"table1", "table2"
};
var ions = tables.Select(t => CreateValueHolder(factory.NewString(t))).ToList();
var h1 = QldbHash.ToQldbHash(TestTransactionId);
h1 = Transaction.Dot(h1, QldbDriver.TableNameQuery, new List <IIonValue> {
});
var sendCommandResponseWithStartSession = new SendCommandResponse
{
StartSession = new StartSessionResult
{
SessionToken = "testToken"
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var sendCommandResponseStartTransaction = new SendCommandResponse
{
StartTransaction = new StartTransactionResult
{
TransactionId = TestTransactionId
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var sendCommandResponseExecute = new SendCommandResponse
{
ExecuteStatement = new ExecuteStatementResult
{
FirstPage = new Page
{
NextPageToken = null,
Values = ions
}
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
var sendCommandResponseCommit = new SendCommandResponse
{
CommitTransaction = new CommitTransactionResult
{
CommitDigest = new MemoryStream(h1.Hash),
TransactionId = TestTransactionId
},
ResponseMetadata = new ResponseMetadata
{
RequestId = "testId"
}
};
mockClient.SetupSequence(x => x.SendCommandAsync(It.IsAny <SendCommandRequest>(), It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(sendCommandResponseWithStartSession))
.Returns(Task.FromResult(sendCommandResponseStartTransaction))
.Returns(Task.FromResult(sendCommandResponseExecute))
.Returns(Task.FromResult(sendCommandResponseCommit));
var driver = new QldbDriver(
new SessionPool(() => Session.StartSession("ledgerName", mockClient.Object, NullLogger.Instance),
QldbDriverBuilder.CreateDefaultRetryHandler(NullLogger.Instance), 4, NullLogger.Instance));
var result = await driver.ListTableNames();
Assert.IsNotNull(result);
CollectionAssert.AreEqual(tables, result.ToList());
}
