diff --git a/tests/test_url.py b/tests/test_url.py
index 41e2fc9c5..9d782418a 100644
--- a/tests/test_url.py
+++ b/tests/test_url.py
@@ -71,3 +71,9 @@ def test_buffer_uri(self):
         view.buffer_id = unittest.mock.MagicMock(return_value=42)
         uri = view_to_uri(view)
         self.assertEqual(uri, "buffer:42")
+
+    def test_parse_uri(self):
+        scheme, _ = parse_uri("buffer:42")
+        self.assertEqual(scheme, "buffer")
+        scheme, _ = parse_uri("www.example.com/foo:bar")
+        self.assertEqual(scheme, "")