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Code Issues Projects Releases Packages Wiki Activity Actions 11

bpo-43521: Allow ast.unparse with empty sets and NaN (GH-24897)

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Automerge-Triggered-By: GH:pablogsal
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Kodi Arfer 2021-03-18 13:36:06 -04:00 • committed by GitHub
parent eec8e61992
commit 08ff4369af
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3 changed files with 27 additions and 9 deletions
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15
Lib/test/test_unparse.py
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@ -199,6 +199,12 @@ class UnparseTestCase(ASTTestCase):
self.check_ast_roundtrip("1e1000j")
self.check_ast_roundtrip("-1e1000j")
def test_nan(self):
self.assertASTEqual(
ast.parse(ast.unparse(ast.Constant(value=float('nan')))),
ast.parse('1e1000 - 1e1000')
)
def test_min_int(self):
self.check_ast_roundtrip(str(-(2 ** 31)))
self.check_ast_roundtrip(str(-(2 ** 63)))
@ -252,6 +258,12 @@ class UnparseTestCase(ASTTestCase):
def test_set_literal(self):
self.check_ast_roundtrip("{'a', 'b', 'c'}")
def test_empty_set(self):
self.assertASTEqual(
ast.parse(ast.unparse(ast.Set(elts=[]))),
ast.parse('{*()}')
)
def test_set_comprehension(self):
self.check_ast_roundtrip("{x for x in range(5)}")
@ -326,9 +338,6 @@ class UnparseTestCase(ASTTestCase):
def test_invalid_fstring_backslash(self):
self.check_invalid(ast.FormattedValue(value=ast.Constant(value="\\\\")))
def test_invalid_set(self):
self.check_invalid(ast.Set(elts=[]))
def test_invalid_yield_from(self):
self.check_invalid(ast.YieldFrom(value=None))