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| author | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-02-01 07:05:46 (GMT) |
|---|---|---|
| committer | Jeffrey Yasskin <jyasskin@gmail.com> | 2008-02-01 07:05:46 (GMT) |
| commit | dc2964b0d849389bffde95b8f76fd112049e114f (patch) | |
| tree | 6b6db21fcc4dbee5a7ea9f87973ea2b694742005 /Lib/test/test_rational.py | |
| parent | ca2b69f765dd8a7f5c8e5c5346572519a8768ec4 (diff) | |
| download | cpython-dc2964b0d849389bffde95b8f76fd112049e114f.zip cpython-dc2964b0d849389bffde95b8f76fd112049e114f.tar.gz cpython-dc2964b0d849389bffde95b8f76fd112049e114f.tar.bz2 | |
Roll back r60248. It's useful to encourage users not to change Rational
instances.
Diffstat (limited to 'Lib/test/test_rational.py')
| -rw-r--r-- | Lib/test/test_rational.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_rational.py b/Lib/test/test_rational.py index 3c3d1f9..1c37874 100644 --- a/Lib/test/test_rational.py +++ b/Lib/test/test_rational.py @@ -119,6 +119,17 @@ class RationalTest(unittest.TestCase): r.__init__(2, 15) self.assertEquals((7, 3), _components(r)) + self.assertRaises(AttributeError, setattr, r, 'numerator', 12) + self.assertRaises(AttributeError, setattr, r, 'denominator', 6) + self.assertEquals((7, 3), _components(r)) + + # But if you _really_ need to: + r._numerator = 4 + r._denominator = 2 + self.assertEquals((4, 2), _components(r)) + # Which breaks some important operations: + self.assertNotEquals(R(4, 2), r) + def testFromFloat(self): self.assertRaisesMessage( TypeError, "Rational.from_float() only takes floats, not 3 (int)", |