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Issue #14697: Merge fix from 3.2.

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This commit is contained in:
Mark Dickinson 2012-05-07 16:36:33 +01:00
commit 72f6095d4f
3 changed files with 104 additions and 20 deletions
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23
Lib/test/test_parser.py
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@ -309,6 +309,29 @@ class RoundtripLegalSyntaxTestCase(unittest.TestCase):
"except Exception as e:\n"
" raise ValueError from e\n")
def test_set_displays(self):
self.check_expr('{2}')
self.check_expr('{2,}')
self.check_expr('{2, 3}')
self.check_expr('{2, 3,}')
def test_dict_displays(self):
self.check_expr('{}')
self.check_expr('{a:b}')
self.check_expr('{a:b,}')
self.check_expr('{a:b, c:d}')
self.check_expr('{a:b, c:d,}')
def test_set_comprehensions(self):
self.check_expr('{x for x in seq}')
self.check_expr('{f(x) for x in seq}')
self.check_expr('{f(x) for x in seq if condition(x)}')
def test_dict_comprehensions(self):
self.check_expr('{x:x for x in seq}')
self.check_expr('{x**2:x[3] for x in seq if condition(x)}')
self.check_expr('{x:x for x in seq1 for y in seq2 if condition(x, y)}')
#
# Second, we take *invalid* trees and make sure we get ParserError