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[3.9] bpo-43272: Fix old parser test failures for backported grammar constructs (GH-24591)

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Pablo Galindo 2021-02-20 01:36:15 +00:00 • committed by GitHub
parent a67fd011ea
commit f9d1bf2de0
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3 changed files with 33 additions and 23 deletions
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8
Lib/test/test_fstring.py
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@ -374,10 +374,10 @@ x = (
# check the call
call = middle.value
self.assertEqual(type(call), ast.Call)
self.assertEqual(call.lineno, 5)
self.assertEqual(call.end_lineno, 5)
self.assertEqual(call.col_offset, 27)
self.assertEqual(call.end_col_offset, 31)
self.assertEqual(call.lineno, 4 if use_old_parser() else 5)
self.assertEqual(call.end_lineno, 4 if use_old_parser() else 5)
self.assertEqual(call.col_offset, 13 if use_old_parser() else 27)
self.assertEqual(call.end_col_offset, 17 if use_old_parser() else 31)
# check the second wat
self.assertEqual(type(wat2), ast.Constant)
self.assertEqual(wat2.lineno, 4)

3
Lib/test/test_named_expressions.py
View file

@ -1,4 +1,5 @@
import unittest
from test.support import use_old_parser
GLOBAL_VAR = None
@ -167,6 +168,7 @@ class NamedExpressionInvalidTest(unittest.TestCase):
with self.assertRaisesRegex(SyntaxError, msg):
exec(f"lambda: {code}", {}) # Function scope
@unittest.skipIf(use_old_parser(), "Old parser does not support walruses in set comprehensions")
def test_named_expression_invalid_rebinding_set_comprehension_iteration_variable(self):
cases = [
("Local reuse", 'i', "{i := 0 for i in range(5)}"),
@ -199,6 +201,7 @@ class NamedExpressionInvalidTest(unittest.TestCase):
with self.assertRaisesRegex(SyntaxError, msg):
exec(f"lambda: {code}", {}) # Function scope
@unittest.skipIf(use_old_parser(), "Old parser does not support walruses in set comprehensions")
def test_named_expression_invalid_set_comprehension_iterable_expression(self):
cases = [
("Top level", "{i for i in (i := range(5))}"),

45
Lib/test/test_unpack_ex.py
View file

@ -1,5 +1,7 @@
# Tests for extended unpacking, starred expressions.
from test.support import use_old_parser
doctests = """
Unpack tuple
@ -346,6 +348,26 @@ Now some general starred expressions (all fail).
...
SyntaxError: can't use starred expression here
Some size constraints (all fail.)
>>> s = ", ".join("a%d" % i for i in range(1<<8)) + ", *rest = range(1<<8 + 1)"
>>> compile(s, 'test', 'exec') # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: too many expressions in star-unpacking assignment
>>> s = ", ".join("a%d" % i for i in range(1<<8 + 1)) + ", *rest = range(1<<8 + 2)"
>>> compile(s, 'test', 'exec') # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: too many expressions in star-unpacking assignment
(there is an additional limit, on the number of expressions after the
'*rest', but it's 1<<24 and testing it takes too much memory.)
"""
new_parser_doctests = """\
>>> (*x),y = 1, 2 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
@ -370,27 +392,12 @@ Now some general starred expressions (all fail).
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
Some size constraints (all fail.)
>>> s = ", ".join("a%d" % i for i in range(1<<8)) + ", *rest = range(1<<8 + 1)"
>>> compile(s, 'test', 'exec') # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: too many expressions in star-unpacking assignment
>>> s = ", ".join("a%d" % i for i in range(1<<8 + 1)) + ", *rest = range(1<<8 + 2)"
>>> compile(s, 'test', 'exec') # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: too many expressions in star-unpacking assignment
(there is an additional limit, on the number of expressions after the
'*rest', but it's 1<<24 and testing it takes too much memory.)
"""
__test__ = {'doctests' : doctests}
if use_old_parser():
__test__ = {'doctests' : doctests}
else:
__test__ = {'doctests' : doctests + new_parser_doctests}
def test_main(verbose=False):
from test import support