public async Task TestOneLevelSelectManyDataPass()
{
var inputChunks = new List <int>()
{
5, 213, 23, -21, 23, 99
}.BatchIEnumerable(2).ToList();
var outputChunks = inputChunks.SelectMany(i => i).Select(i => (i > 0) ? Enumerable.Range(0, i).ToList() : i.SingleValueToList()).ToList();
var source = new StreamMessageSenderComposite <int>(_provider, 2);
var factory = new DefaultStreamProcessorAggregateFactory(GrainFactory);
var query = await source.SimpleSelectMany(i => (i > 0)?Enumerable.Range(0, i) : i.SingleValueToList(), factory);
var queryOutputStreams = await query.GetOutputStreams();
var resultConsumer = new TestTransactionalTransactionalStreamConsumerAggregate <int>(_provider);
await resultConsumer.SetInput(queryOutputStreams);
Assert.AreEqual(2, queryOutputStreams.Count);
Assert.AreEqual(0, resultConsumer.Items.Count);
for (int i = 0; i < inputChunks.Count; i++)
{
var input = inputChunks[i];
var expectedOutput = new List <int>();
expectedOutput.AddRange(outputChunks[2 * i]);
expectedOutput.AddRange(outputChunks[2 * i + 1]);
var tid = TransactionGenerator.GenerateTransactionId();
await source.StartTransaction(tid);
await source.SendMessage(new ItemMessage <int>(input));
await source.EndTransaction(tid);
CollectionAssert.AreEquivalent(expectedOutput, resultConsumer.Items);
resultConsumer.Items.Clear();
}
await query.TearDown();
await resultConsumer.TearDown();
}