1 files changed, 9 insertions, 0 deletions
diff --git a/Lib/test/test_uu.py b/Lib/test/test_uu.py
index 73564789813..3503d76b859 100644
--- a/Lib/test/test_uu.py
+++ b/Lib/test/test_uu.py
@@ -114,6 +114,15 @@ class UUTest(unittest.TestCase):
             decoded = codecs.decode(encodedtext, "uu_codec")
             self.assertEqual(decoded, plaintext)
 
+    def test_newlines_escaped(self):
+        # Test newlines are escaped with uu.encode
+        inp = io.BytesIO(plaintext)
+        out = io.BytesIO()
+        filename = "test.txt\n\roverflow.txt"
+        safefilename = b"test.txt\\n\\roverflow.txt"
+        uu.encode(inp, out, filename)
+        self.assertIn(safefilename, out.getvalue())
+
 class UUStdIOTest(unittest.TestCase):
 
     def setUp(self):