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Code Issues Projects Releases Packages Wiki Activity Actions 8

Issue #16431: Finally, consider all permutations.

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This commit is contained in:
Stefan Krah 2012-11-08 11:17:29 +01:00
parent 9cfa1ff891
commit 0f82b76b57
2 changed files with 25 additions and 10 deletions
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31
Lib/test/test_decimal.py
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@ -2029,7 +2029,7 @@ class UsabilityTest(unittest.TestCase):
Decimal = self.decimal.Decimal
class MyDecimal(Decimal):
pass
y = None
d1 = MyDecimal(1)
d2 = MyDecimal(2)
@ -2047,14 +2047,29 @@ class UsabilityTest(unittest.TestCase):
self.assertIs(type(d), MyDecimal)
self.assertEqual(d, d1)
a = Decimal('1.0')
b = MyDecimal(a)
self.assertIs(type(b), MyDecimal)
self.assertEqual(a, b)
# Decimal(Decimal)
d = Decimal('1.0')
x = Decimal(d)
self.assertIs(type(x), Decimal)
self.assertEqual(x, d)
c = Decimal(b)
self.assertIs(type(c), Decimal)
self.assertEqual(a, c)
# MyDecimal(Decimal)
m = MyDecimal(d)
self.assertIs(type(m), MyDecimal)
self.assertEqual(m, d)
self.assertIs(m.y, None)
# Decimal(MyDecimal)
x = Decimal(m)
self.assertIs(type(x), Decimal)
self.assertEqual(x, d)
# MyDecimal(MyDecimal)
m.y = 9
x = MyDecimal(m)
self.assertIs(type(x), MyDecimal)
self.assertEqual(x, d)
self.assertIs(x.y, None)
def test_implicit_context(self):
Decimal = self.decimal.Decimal