Fix $comment tests for MongoDB 3.1.x.

Author: behackett

test/test_cursor.py

@@ -1052,9 +1052,12 @@ def find():
 
  run_with_profiling(find)
 
+ # MongoDB 3.1.5 changed the ns for commands.
+ regex = {'$regex': 'pymongo_test.(\$cmd|test)'}
+
  def count():
  self.db.test.find().comment('foo').count()
- op = self.db.system.profile.find({'ns': 'pymongo_test.$cmd',
+ op = self.db.system.profile.find({'ns': regex,
  'op': 'command',
  'command.count': 'test',
  'command.$comment': 'foo'})
@@ -1064,7 +1067,7 @@ def count():
 
  def distinct():
  self.db.test.find().comment('foo').distinct('type')
- op = self.db.system.profile.find({'ns': 'pymongo_test.$cmd',
+ op = self.db.system.profile.find({'ns': regex,
  'op': 'command',
  'command.distinct': 'test',
  'command.$comment': 'foo'})