From 6c6375d5161ef1db0789215ec1007c4b66cd8505 Mon Sep 17 00:00:00 2001
From: "A. Jesse Jiryu Davis" <jesse@mongodb.com>
Date: Mon, 3 Feb 2014 22:37:08 -0500
Subject: [PATCH] Test that write concern of {wtimeout: 1000} is same as {w: 1,
 wtimeout: 1000}.

---
 test/test_collection.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/test_collection.py b/test/test_collection.py
index 9f375d107..c5b59d8ec 100644
--- a/test/test_collection.py
+++ b/test/test_collection.py
@@ -1017,6 +1017,19 @@ class TestCollection(unittest.TestCase):
         else:
             self.fail("%s was not raised" % (expected_error.__name__,))
 
+    def test_wtimeout(self):
+        # Ensure setting wtimeout doesn't disable write concern altogether.
+        # See SERVER-12596.
+        collection = self.db.test
+        collection.remove()
+        collection.insert({'_id': 1})
+
+        collection.write_concern = {'w': 1, 'wtimeout': 1000}
+        self.assertRaises(DuplicateKeyError, collection.insert, {'_id': 1})
+
+        collection.write_concern = {'wtimeout': 1000}
+        self.assertRaises(DuplicateKeyError, collection.insert, {'_id': 1})
+
     def test_continue_on_error(self):
         db = self.db
         if not version.at_least(db.connection, (1, 9, 1)):