Add working tests, can shutdown conn and pool

tests/test_find_and_modify.py

@@ -0,0 +1,37 @@
+# coding: utf-8
+# Copyright 2010 Mark L.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from tests.base import MongoTest, async
+
+
+class TestFindAndModify(MongoTest):
+    @async
+    def test_update(self):
+        yield from self.coll.insert([{'oh': 'hai', 'lulz': 123},
+                                     {'oh': 'kthxbye', 'lulz': 456}], safe=True)
+
+        res = yield from self.coll.find_one({'oh': 'hai'})
+        self.assertEqual(res['lulz'], 123)
+
+        res = yield from self.coll.find_and_modify({'o2h': 'hai'}, {'$inc': {'lulz': 1}})
+        self.assertEqual(res, None)
+
+        res = yield from self.coll.find_and_modify({'oh': 'hai'}, {'$inc': {'lulz': 1}})
+        print(res)
+        self.assertEqual(res['lulz'], 123)
+        res = yield from self.coll.find_and_modify({'oh': 'hai'}, {'$inc': {'lulz': 1}}, new=True)
+        self.assertEqual(res['lulz'], 125)
+
+        res = yield from self.coll.find_one({'oh': 'kthxbye'})
+        self.assertEqual(res['lulz'], 456)