MongoDB C# journal write test

mongoEg.cs

public class Data
{
	public ObjectId Id { get; set; }
	public string Value { get; set; }
}

static void Main( string[] args )
{
	var client = new MongoClient( "mongodb://localhost:27017" );
	var server = client.GetServer();
	var db = server.GetDatabase( "test" );
	var col = db.GetCollection( "test" );
	var safe = new WriteConcern {Journal = true};

	col.RemoveAll( safe );
	col.Insert( new Data{Value = "xxx"}, safe );
	col.Insert( new Data{Value = "yyy"}, safe );
	Debug.Assert( col.Count() == 2, "!= 2" );

	col.RemoveAll( safe );
	var x = new Data {Id = ObjectId.GenerateNewId(), Value = "xxx"};
	var y = new Data {Id = ObjectId.GenerateNewId(), Value = "yyy"};

	col.Update(
		 Query.EQ( "Value", x.Value ),
		 Update.Replace( x ),
		 UpdateFlags.Upsert,
		 safe );

	col.Update(
		 Query.EQ( "Value", y.Value ),
		 Update.Replace( y ),
		 UpdateFlags.Upsert,
		 safe );

	Debug.Assert( col.Count() == 2, "!= 2" );
	Debug.Assert( ObjectId.GenerateNewId() != ObjectId.GenerateNewId() );
}