commit c614121224a5a81d958643471720645b1cb3166e
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Fri Aug 10 23:00:11 2018 -0700
committer Berker Peksag <berker.peksag@gmail.com> Sat Aug 11 09:00:11 2018 +0300
tree 7e349cec14db0e56849ea123c5cf02b0e898543d
parent ea8835fb302447da82f265a5bc0f785353100271

bpo-34333: Fix %-formatting in Path.with_suffix() (GH-8663)

(cherry picked from commit 423d05f6f59b24c91b9ef6b2e4ac130316764382)

Co-authored-by: Berker Peksag <berker.peksag@gmail.com>

Lib/test/test_pathlib.py

diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py
index d95a831..ae7c75d 100644
--- a/Lib/test/test_pathlib.py
+++ b/Lib/test/test_pathlib.py
@@ -577,6 +577,8 @@
         self.assertRaises(ValueError, P('a/b').with_suffix, '.c/.d')
         self.assertRaises(ValueError, P('a/b').with_suffix, './.d')
         self.assertRaises(ValueError, P('a/b').with_suffix, '.d/.')
+        self.assertRaises(ValueError, P('a/b').with_suffix,
+                          (self.flavour.sep, 'd'))
 
     def test_relative_to_common(self):
         P = self.cls