From bafecb5bd157e82a8f0172933bc1199b3ce6fdfa Mon Sep 17 00:00:00 2001
From: Sean Sullivan <deseanjunk@yahoo.com>
Date: Tue, 2 Jul 2024 12:50:18 -0400
Subject: [PATCH] Add support for bitwise operators

---
 mongomock/collection.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/mongomock/collection.py b/mongomock/collection.py
index c7e86c946..e729f75c1 100644
--- a/mongomock/collection.py
+++ b/mongomock/collection.py
@@ -2130,8 +2130,16 @@ def _current_date_updater(doc, field_name, value):
         else:
             doc[field_name] = mongomock.utcnow()
 
+def _bit_updater(doc,field_name,value):
+    if value.get("or"):
+        doc[field] = doc[field] | value["or"]
+    if value.get("and"):
+        doc[field] = doc[field] & value["and"]
+    if value.get("xor"):
+        doc[field] = doc[field] | value["xor"]
 
 _updaters = {
+    '$bit': _bit_updater,
     '$set': _set_updater,
     '$unset': _unset_updater,
     '$inc': _inc_updater,