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bpo-40000: Improve error messages when validating invalid ast.Constant nodes (GH-19055)

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Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
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Batuhan Taşkaya 2020-03-19 14:32:28 +03:00 • committed by GitHub
parent 50e6e99178
commit 0ac59f93c0
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3 changed files with 16 additions and 3 deletions
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9
Lib/test/test_ast.py
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@ -582,6 +582,15 @@ class AST_Tests(unittest.TestCase):
compile(m, "<test>", "exec")
self.assertIn("identifier must be of type str", str(cm.exception))
def test_invalid_constant(self):
for invalid_constant in int, (1, 2, int), frozenset((1, 2, int)):
e = ast.Expression(body=ast.Constant(invalid_constant))
ast.fix_missing_locations(e)
with self.assertRaisesRegex(
TypeError, "invalid type in Constant: type"
):
compile(e, "<test>", "eval")
def test_empty_yield_from(self):
# Issue 16546: yield from value is not optional.
empty_yield_from = ast.parse("def f():\n yield from g()")