PYTHON-1185 - maxStalenessSeconds can be a float.

PyMongo had cast to int before sending to mongos.

Author: ajdavis

pymongo/read_preferences.py

@@ -108,7 +108,7 @@ def document(self):
  if self.__tag_sets not in (None, [{}]):
  doc['tags'] = self.__tag_sets
  if self.__max_staleness:
- doc['maxStalenessSeconds'] = int(self.__max_staleness)
+ doc['maxStalenessSeconds'] = self.__max_staleness
  return doc
 
  @property

test/test_read_preferences.py

@@ -519,6 +519,11 @@ def test_read_preference_document(self):
  'tags': [{'dc': 'sf'}],
  'maxStalenessSeconds': 30})
 
+ pref = Nearest(max_staleness=1.5)
+ self.assertEqual(
+ pref.document,
+ {'mode': 'nearest', 'maxStalenessSeconds': 1.5})
+
  def test_maybe_add_read_preference(self):
 
  # Primary doesn't add $readPreference