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cpython/Lib/test/test_keyword.py
Jelle Zijlstra 24d8b88420
gh-103763: Implement PEP 695 (#103764)
This implements PEP 695, Type Parameter Syntax. It adds support for:

- Generic functions (def func[T](): ...)
- Generic classes (class X[T](): ...)
- Type aliases (type X = ...)
- New scoping when the new syntax is used within a class body
- Compiler and interpreter changes to support the new syntax and scoping rules 

Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Co-authored-by: Eric Traut <eric@traut.com>
Co-authored-by: Larry Hastings <larry@hastings.org>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2023-05-15 20:36:23 -07:00

57 lines
2.0 KiB
Python

import keyword
import unittest
class Test_iskeyword(unittest.TestCase):
def test_true_is_a_keyword(self):
self.assertTrue(keyword.iskeyword('True'))
def test_uppercase_true_is_not_a_keyword(self):
self.assertFalse(keyword.iskeyword('TRUE'))
def test_none_value_is_not_a_keyword(self):
self.assertFalse(keyword.iskeyword(None))
# This is probably an accident of the current implementation, but should be
# preserved for backward compatibility.
def test_changing_the_kwlist_does_not_affect_iskeyword(self):
oldlist = keyword.kwlist
self.addCleanup(setattr, keyword, 'kwlist', oldlist)
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_soft_keywords(self):
self.assertIn("type", keyword.softkwlist)
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()