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inspect.Signature: Fix discrepancy between __eq__ and __hash__.

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Issue #20334. Thanks to Antony Lee for bug report & initial patch.
This commit is contained in:
Yury Selivanov 2014-09-12 15:48:02 -04:00
parent f1a8df0ac9
commit 08d4a4f488
3 changed files with 40 additions and 40 deletions
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24
Lib/test/test_inspect.py
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@ -2535,43 +2535,67 @@ class TestSignatureObject(unittest.TestCase):
def bar(a, *, b:int) -> float: pass
self.assertEqual(inspect.signature(foo), inspect.signature(bar))
self.assertEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def bar(a, *, b:int) -> int: pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def bar(a, *, b:int): pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def bar(a, *, b:int=42) -> float: pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def bar(a, *, c) -> float: pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def bar(a, b:int) -> float: pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def spam(b:int, a) -> float: pass
self.assertNotEqual(inspect.signature(spam), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(spam)), hash(inspect.signature(bar)))
def foo(*, a, b, c): pass
def bar(*, c, b, a): pass
self.assertEqual(inspect.signature(foo), inspect.signature(bar))
self.assertEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def foo(*, a=1, b, c): pass
def bar(*, c, b, a=1): pass
self.assertEqual(inspect.signature(foo), inspect.signature(bar))
self.assertEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def foo(pos, *, a=1, b, c): pass
def bar(pos, *, c, b, a=1): pass
self.assertEqual(inspect.signature(foo), inspect.signature(bar))
self.assertEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def foo(pos, *, a, b, c): pass
def bar(pos, *, c, b, a=1): pass
self.assertNotEqual(inspect.signature(foo), inspect.signature(bar))
self.assertNotEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def foo(pos, *args, a=42, b, c, **kwargs:int): pass
def bar(pos, *args, c, b, a=42, **kwargs:int): pass
self.assertEqual(inspect.signature(foo), inspect.signature(bar))
self.assertEqual(
hash(inspect.signature(foo)), hash(inspect.signature(bar)))
def test_signature_hashable(self):
S = inspect.Signature