diff --git a/python3/httplib2test.py b/python3/httplib2test.py
index 7860143..61a297a 100755
--- a/python3/httplib2test.py
+++ b/python3/httplib2test.py
@@ -886,6 +886,22 @@
         (response, content) = self.http.request(uri, "PUT", body="foo")
         self.assertEqual(response.status, 412)
 
+
+    def testUpdatePatchUsesCachedETag(self):
+        # Test that we natively support http://www.w3.org/1999/04/Editing/ 
+        uri = urllib.parse.urljoin(base, "conditional-updates/test.cgi")
+
+        (response, content) = self.http.request(uri, "GET")
+        self.assertEqual(response.status, 200)
+        self.assertEqual(response.fromcache, False)
+        (response, content) = self.http.request(uri, "GET")
+        self.assertEqual(response.status, 200)
+        self.assertEqual(response.fromcache, True)
+        (response, content) = self.http.request(uri, "PATCH", body="foo")
+        self.assertEqual(response.status, 200)
+        (response, content) = self.http.request(uri, "PATCH", body="foo")
+        self.assertEqual(response.status, 412)
+
     def testUpdateUsesCachedETagAndOCMethod(self):
         # Test that we natively support http://www.w3.org/1999/04/Editing/ 
         uri = urllib.parse.urljoin(base, "conditional-updates/test.cgi")