http://hg.python.org/cpython/rev/8e00de3acb44 changeset: 75345:8e00de3acb44 branch: 2.7 parent: 75342:3958121a027f user: Ezio Melotti <ezio.melotti@gmail.com> date: Wed Feb 29 14:04:02 2012 +0200 summary: #14089: increase coverage of the fractions module. Patch by Oleg Plakhotnyuk. files: Lib/test/test_fractions.py | 20 +++++++++++++++++++- 1 files changed, 19 insertions(+), 1 deletions(-) diff --git a/Lib/test/test_fractions.py b/Lib/test/test_fractions.py --- a/Lib/test/test_fractions.py +++ b/Lib/test/test_fractions.py @@ -6,6 +6,7 @@ import numbers import operator import fractions +import sys import unittest from copy import copy, deepcopy from cPickle import dumps, loads @@ -88,6 +89,9 @@ __hash__ = None +class DummyFraction(fractions.Fraction): + """Dummy Fraction subclass for copy and deepcopy testing.""" + class GcdTest(unittest.TestCase): def testMisc(self): @@ -301,11 +305,15 @@ self.assertEqual(F(201, 200).limit_denominator(100), F(1)) self.assertEqual(F(201, 200).limit_denominator(101), F(102, 101)) self.assertEqual(F(0).limit_denominator(10000), F(0)) + for i in (0, -1): + self.assertRaisesMessage( + ValueError, "max_denominator should be at least 1", + F(1).limit_denominator, i) def testConversions(self): self.assertTypedEquals(-1, math.trunc(F(-11, 10))) self.assertTypedEquals(-1, int(F(-11, 10))) - + self.assertTypedEquals(1, math.trunc(F(11, 10))) self.assertEqual(False, bool(F(0, 1))) self.assertEqual(True, bool(F(3, 2))) self.assertTypedEquals(0.1, float(F(1, 10))) @@ -330,6 +338,7 @@ self.assertEqual(F(8, 27), F(2, 3) ** F(3)) self.assertEqual(F(27, 8), F(2, 3) ** F(-3)) self.assertTypedEquals(2.0, F(4) ** F(1, 2)) + self.assertEqual(F(1, 1), +F(1, 1)) # Will return 1j in 3.0: self.assertRaises(ValueError, pow, F(-1), F(1, 2)) @@ -394,6 +403,10 @@ TypeError, "unsupported operand type(s) for +: 'Fraction' and 'Decimal'", operator.add, F(3,11), Decimal('3.1415926')) + self.assertRaisesMessage( + TypeError, + "unsupported operand type(s) for +: 'Decimal' and 'Fraction'", + operator.add, Decimal('3.1415926'), F(3,11)) self.assertNotEqual(F(5, 2), Decimal('2.5')) def testComparisons(self): @@ -571,9 +584,14 @@ def test_copy_deepcopy_pickle(self): r = F(13, 7) + dr = DummyFraction(13, 7) self.assertEqual(r, loads(dumps(r))) self.assertEqual(id(r), id(copy(r))) self.assertEqual(id(r), id(deepcopy(r))) + self.assertNotEqual(id(dr), id(copy(dr))) + self.assertNotEqual(id(dr), id(deepcopy(dr))) + self.assertTypedEquals(dr, copy(dr)) + self.assertTypedEquals(dr, deepcopy(dr)) def test_slots(self): # Issue 4998 -- Repository URL: http://hg.python.org/cpython