commit 5650e76f63a6f4ec55d00ec13f143d84a2efee39
author Serhiy Storchaka <storchaka@gmail.com> Tue May 12 16:18:00 2020 +0300
committer GitHub <noreply@github.com> Tue May 12 16:18:00 2020 +0300
tree 6a3179a1f7b94c3d65985b49c81a5a8fa94e327a
parent 7c6e97077525f0ad3cfa0971028313b9079449fd

bpo-40596: Fix str.isidentifier() for non-canonicalized strings containing non-BMP characters on Windows. (GH-20053)

Lib/test/test_unicode.py

diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index 2839889..2ee4e64 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -720,6 +720,13 @@
         self.assertFalse("©".isidentifier())
         self.assertFalse("0".isidentifier())
 
+    @support.cpython_only
+    def test_isidentifier_legacy(self):
+        import _testcapi
+        u = '𝖀𝖓𝖎𝖈𝖔𝖉𝖊'
+        self.assertTrue(u.isidentifier())
+        self.assertTrue(_testcapi.unicode_legacy_string(u).isidentifier())
+
     def test_isprintable(self):
         self.assertTrue("".isprintable())
         self.assertTrue(" ".isprintable())