[Python-checkins] gh-102158: Add tests for `softkwlist` (GH-102159)

[miss-islington]

https://github.com/python/cpython/commit/2e2ab6752b9815490df366f50d022cdda1235511
commit: 2e2ab6752b9815490df366f50d022cdda1235511
branch: 3.10
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: miss-islington <31488909+miss-islington at users.noreply.github.com>
date: 2023-02-23T18:52:31-08:00
summary:

gh-102158: Add tests for `softkwlist` (GH-102159)


---------

(cherry picked from commit 9f3ecd1aa3566947648a053bd9716ed67dd9a718)

Co-authored-by: Eclips4 <80244920+Eclips4 at users.noreply.github.com>
Co-authored-by: Terry Jan Reedy <tjreedy at udel.edu>

files:
M Lib/test/test_keyword.py

diff --git a/Lib/test/test_keyword.py b/Lib/test/test_keyword.py
index 3e2a8b3fb7f4..f329f88fa01d 100644
--- a/Lib/test/test_keyword.py
+++ b/Lib/test/test_keyword.py
@@ -20,18 +20,36 @@ def test_changing_the_kwlist_does_not_affect_iskeyword(self):
         keyword.kwlist = ['its', 'all', 'eggs', 'beans', 'and', 'a', 'slice']
         self.assertFalse(keyword.iskeyword('eggs'))
 
+    def test_changing_the_softkwlist_does_not_affect_issoftkeyword(self):
+        oldlist = keyword.softkwlist
+        self.addCleanup(setattr, keyword, "softkwlist", oldlist)
+        keyword.softkwlist = ["foo", "bar", "spam", "egs", "case"]
+        self.assertFalse(keyword.issoftkeyword("spam"))
+
     def test_all_keywords_fail_to_be_used_as_names(self):
         for key in keyword.kwlist:
             with self.assertRaises(SyntaxError):
                 exec(f"{key} = 42")
 
+    def test_all_soft_keywords_can_be_used_as_names(self):
+        for key in keyword.softkwlist:
+            exec(f"{key} = 42")
+
     def test_async_and_await_are_keywords(self):
         self.assertIn("async", keyword.kwlist)
         self.assertIn("await", keyword.kwlist)
 
+    def test_match_and_case_are_soft_keywords(self):
+        self.assertIn("match", keyword.softkwlist)
+        self.assertIn("case", keyword.softkwlist)
+        self.assertIn("_", keyword.softkwlist)
+
     def test_keywords_are_sorted(self):
         self.assertListEqual(sorted(keyword.kwlist), keyword.kwlist)
 
+    def test_softkeywords_are_sorted(self):
+        self.assertListEqual(sorted(keyword.softkwlist), keyword.softkwlist)
+
 
 if __name__ == "__main__":
     unittest.main()