commit d04e417b1e892f35a26b23b7be6e68ea3cc945f5
author Yury Selivanov <yury@magic.io> Fri Sep 09 11:14:59 2016 -0700
committer Yury Selivanov <yury@magic.io> Fri Sep 09 11:14:59 2016 -0700
tree 00302fbf84252012a45d1b0d526cb0f2257accc1
parent feea6e7bcf1735486a0a53c534b3680e884a8ec6

tests: use subTest in test_unparse.test_files

Lib/test/test_tools/test_unparse.py

diff --git a/Lib/test/test_tools/test_unparse.py b/Lib/test/test_tools/test_unparse.py
index 517f261..ed0001a 100644
--- a/Lib/test/test_tools/test_unparse.py
+++ b/Lib/test/test_tools/test_unparse.py
@@ -293,8 +293,9 @@
                     print(f'Skipping {filename}: see issue 27921')
                 continue
 
-            source = read_pyfile(filename)
-            self.check_roundtrip(source)
+            with self.subTest(filename=filename):
+                source = read_pyfile(filename)
+                self.check_roundtrip(source)
 
 
 if __name__ == '__main__':