public void Aggregate_with_write_stage_should_not_have_transaction_id(
[Values("$out", "$merge")] string outStage,
[Values(false, true)] bool async)
{
RequireServer
.Check()
.ClusterTypes(ClusterType.ReplicaSet, ClusterType.Sharded)
.Serverless(false); // $out and $merge are not supported on serverless.
if (outStage == "$merge")
{
RequireServer.Check().Supports(Feature.AggregateMerge);
}
DropAndCreateCollection();
var eventCapturer = CreateEventCapturer();
using (var client = CreateDisposableClient(eventCapturer))
{
var database = client.GetDatabase(_databaseName);
var collection = database.GetCollection <BsonDocument>(_collectionName);
PipelineDefinition <BsonDocument, BsonDocument> pipeline = new EmptyPipelineDefinition <BsonDocument>();
var outputCollection = database.GetCollection <BsonDocument>(_collectionName + "-outputCollection");
switch (outStage)
{
case "$out":
pipeline = pipeline.Out(outputCollection);
break;
case "$merge":
var mergeOptions = new MergeStageOptions <BsonDocument>();
pipeline = pipeline.Merge(outputCollection, mergeOptions);
break;
default:
throw new Exception($"Unexpected outStage: {outStage}.");
}
if (async)
{
collection.AggregateAsync(pipeline).GetAwaiter().GetResult();
}
else
{
collection.Aggregate(pipeline);
}
AssertCommandDoesNotHaveTransactionId(eventCapturer);
}
}
public void Merge_should_add_expected_stage()
{
var pipeline = new EmptyPipelineDefinition <BsonDocument>();
var client = DriverTestConfiguration.Client;
var outputDatabase = client.GetDatabase("database");
var outputCollection = outputDatabase.GetCollection <BsonDocument>("collection");
var mergeOptions = new MergeStageOptions <BsonDocument>();
var result = pipeline.Merge(outputCollection, mergeOptions);
var stages = RenderStages(result, BsonDocumentSerializer.Instance);
stages.Count.Should().Be(1);
stages[0].Should().Be("{ $merge : { into : { db : 'database', coll : 'collection' } } }");
}