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bpo-36440: include node names in ParserError messages, instead of numeric IDs (GH-12565)

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The error messages in the parser module are referring to numeric IDs for the nodes. To improve readability, use the node names when reporting errors.
This commit is contained in:
tyomitch 2019-04-03 08:12:07 +03:00 • committed by Pablo Galindo
parent 76b387bf74
commit cb0748d393
3 changed files with 29 additions and 6 deletions
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16
Lib/test/test_parser.py
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@ -749,6 +749,22 @@ class IllegalSyntaxTestCase(unittest.TestCase):
with self.assertRaises(UnicodeEncodeError):
parser.sequence2st(tree)
def test_invalid_node_id(self):
tree = (257, (269, (-7, '')))
self.check_bad_tree(tree, "negative node id")
tree = (257, (269, (99, '')))
self.check_bad_tree(tree, "invalid token id")
tree = (257, (269, (9999, (0, ''))))
self.check_bad_tree(tree, "invalid symbol id")
def test_ParserError_message(self):
try:
parser.sequence2st((257,(269,(257,(0,'')))))
except parser.ParserError as why:
self.assertIn("compound_stmt", str(why)) # Expected
self.assertIn("file_input", str(why)) # Got
class CompileTestCase(unittest.TestCase):