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Now that the parser generator is written in Python (Parser/pgen) we can make use of it to regenerate the Lib/keyword file that contains the language keywords instead of parsing the autogenerated grammar files. This also allows checking in the CI that the autogenerated files are up to date.
37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
import keyword
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import unittest
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class Test_iskeyword(unittest.TestCase):
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def test_true_is_a_keyword(self):
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self.assertTrue(keyword.iskeyword('True'))
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def test_uppercase_true_is_not_a_keyword(self):
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self.assertFalse(keyword.iskeyword('TRUE'))
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def test_none_value_is_not_a_keyword(self):
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self.assertFalse(keyword.iskeyword(None))
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# This is probably an accident of the current implementation, but should be
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# preserved for backward compatibility.
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def test_changing_the_kwlist_does_not_affect_iskeyword(self):
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oldlist = keyword.kwlist
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self.addCleanup(setattr, keyword, 'kwlist', oldlist)
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keyword.kwlist = ['its', 'all', 'eggs', 'beans', 'and', 'a', 'slice']
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self.assertFalse(keyword.iskeyword('eggs'))
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def test_all_keywords_fail_to_be_used_as_names(self):
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for key in keyword.kwlist:
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with self.assertRaises(SyntaxError):
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exec(f"{key} = 42")
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def test_async_and_await_are_keywords(self):
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self.assertIn("async", keyword.kwlist)
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self.assertIn("await", keyword.kwlist)
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def test_keywords_are_sorted(self):
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self.assertListEqual(sorted(keyword.kwlist), keyword.kwlist)
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if __name__ == "__main__":
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unittest.main()
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