Skip parallel_scan test on mongos.

Author: behackett

test/test_collection.py

@@ -1382,6 +1382,8 @@ def test_aggregation_cursor(self):
  sum(doc['_id'] for doc in cursor))
 
  def test_parallel_scan(self):
+ if is_mongos(self.db.connection):
+ raise SkipTest("mongos does not support parallel_scan")
  if not version.at_least(self.db.connection, (2, 5, 5)):
  raise SkipTest("Requires MongoDB >= 2.5.5")
  db = self.db