From 4257de4143d5291d636d14f36f870b10019ee532 Mon Sep 17 00:00:00 2001
From: Matthew Evans <me388@cam.ac.uk>
Date: Wed, 4 Mar 2020 17:35:26 +0000
Subject: [PATCH] Add note about mongomock bug

---
 tests/server/test_query_params.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tests/server/test_query_params.py b/tests/server/test_query_params.py
index bea6ea66f..016cc048c 100644
--- a/tests/server/test_query_params.py
+++ b/tests/server/test_query_params.py
@@ -397,11 +397,10 @@ def test_list_length(self):
     def test_list_has_only(self):
         """ Test HAS ONLY query on elements.
 
-        Curiously this test fails under mongomock when $size is 1, but works with a real mongo.
+        This test fails with mongomock<=3.1.9 when $size is 1, but works with a real mongo.
 
-        The queries produced in each case should be:
-            - `{"elements": {"$all": ["Ac", "Mg"], "$size": 2}}`
-            - `{"elements": {"$all": ["Ac"], "$size": 1}}`
+        TODO: this text should be removed once mongomock>3.1.9 has been released, which should
+        contain the bugfix for this: https://github.com/mongomock/mongomock/pull/597.
 
         """