SERVER-10097 sharded $out

Note that all sharded aggregation tests now go through the
"merge-on-mongod" codepath now rather than the "merge-in-mongos"
codepath.

1 files changed, 7 insertions, 0 deletions

diff --git a/jstests/aggregation/testshard1.js b/jstests/aggregation/testshard1.js
index 8356015fd71..f069cd9f9a2 100644
--- a/jstests/aggregation/testshard1.js
+++ b/jstests/aggregation/testshard1.js
@@ -183,6 +183,13 @@ testSortLimit(10, -1);
 testSortLimit(100,  1);
 testSortLimit(100, -1);
 
+// test $out by copying source collection verbatim to output
+var outCollection = db.ts1_out;
+var res = db.ts1.aggregate({$out: outCollection.getName()});
+assert.eq(res, {result: [], outputNs: outCollection.getFullName(), ok: 1});
+assert.eq(db.ts1.find().itcount(), outCollection.find().itcount());
+assert.eq(db.ts1.find().sort({_id:1}).toArray(),
+          outCollection.find().sort({_id:1}).toArray());
 
 // shut everything down
 shardedAggTest.stop();