public async Task When_a_two_messages_starting_a_saga_arrive_simultanously_one_of_them_fails()
{
var context1 = CreateMessageContext();
var context2 = CreateMessageContext();
var transaction1 = await outboxPersister.BeginTransaction(context1);
var session1 = new OutboxEventStoreSynchronizedStorageSession(connection, (EventStoreOutboxTransaction)transaction1);
var sagaData = CreateNewSagaData();
await persister.Save(sagaData, new SagaCorrelationProperty(CorrelationPropName, sagaData.StringProperty), session1, context1);
var transaction2 = await outboxPersister.BeginTransaction(context2);
var session2 = new OutboxEventStoreSynchronizedStorageSession(connection, (EventStoreOutboxTransaction)transaction2);
try
{
await persister.Save(sagaData, new SagaCorrelationProperty(CorrelationPropName, sagaData.StringProperty), session2, context2);
Assert.Fail("Expected exception");
}
catch (Exception ex)
{
StringAssert.StartsWith("Append failed due to WrongExpectedVersion.", ex.Message);
}
}
async Task SimulateProcessingMessage(SagaData sagaData, Action <SagaData> action, bool commitOutboxTransaction, ContextBag context)
{
var outboxTransaction = await outboxPersister.BeginTransaction(context);
var session = new OutboxEventStoreSynchronizedStorageSession(connection, (EventStoreOutboxTransaction)outboxTransaction);
sagaData = await persister.Get <SagaData>(CorrelationPropName, sagaData.StringProperty, session, context);
action(sagaData);
await persister.Update(sagaData, session, context);
if (commitOutboxTransaction)
{
await outboxTransaction.Commit();
}
}
public async Task When_a_two_messages_starting_a_saga_arrive_sequentially_both_succeed()
{
var context1 = CreateMessageContext();
var context2 = CreateMessageContext();
var sagaData = CreateNewSagaData();
var transaction1 = await outboxPersister.BeginTransaction(context1);
var session1 = new OutboxEventStoreSynchronizedStorageSession(connection, (EventStoreOutboxTransaction)transaction1);
await persister.Save(sagaData, new SagaCorrelationProperty(CorrelationPropName, sagaData.StringProperty), session1, context1);
await transaction1.Commit();
var transaction2 = await outboxPersister.BeginTransaction(context2);
var session2 = new OutboxEventStoreSynchronizedStorageSession(connection, (EventStoreOutboxTransaction)transaction2);
var loadedData = await persister.Get <SagaData>(CorrelationPropName, sagaData.StringProperty, session2, context2);
await persister.Update(loadedData, session2, context2);
await transaction2.Commit();
}
