diff options
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_fractions.py | 33 | ||||
| -rw-r--r-- | Lib/test/test_math.py | 51 |
2 files changed, 73 insertions, 11 deletions
diff --git a/Lib/test/test_fractions.py b/Lib/test/test_fractions.py index 2dd528fc8d..1699852216 100644 --- a/Lib/test/test_fractions.py +++ b/Lib/test/test_fractions.py @@ -8,6 +8,7 @@ import operator import fractions import sys import unittest +import warnings from copy import copy, deepcopy from pickle import dumps, loads F = fractions.Fraction @@ -49,7 +50,7 @@ class DummyRational(object): """Test comparison of Fraction with a naive rational implementation.""" def __init__(self, num, den): - g = gcd(num, den) + g = math.gcd(num, den) self.num = num // g self.den = den // g @@ -83,16 +84,26 @@ class DummyFraction(fractions.Fraction): class GcdTest(unittest.TestCase): def testMisc(self): - self.assertEqual(0, gcd(0, 0)) - self.assertEqual(1, gcd(1, 0)) - self.assertEqual(-1, gcd(-1, 0)) - self.assertEqual(1, gcd(0, 1)) - self.assertEqual(-1, gcd(0, -1)) - self.assertEqual(1, gcd(7, 1)) - self.assertEqual(-1, gcd(7, -1)) - self.assertEqual(1, gcd(-23, 15)) - self.assertEqual(12, gcd(120, 84)) - self.assertEqual(-12, gcd(84, -120)) + # fractions.gcd() is deprecated + with self.assertWarnsRegex(DeprecationWarning, r'fractions\.gcd'): + gcd(1, 1) + with warnings.catch_warnings(): + warnings.filterwarnings('ignore', r'fractions\.gcd', + DeprecationWarning) + self.assertEqual(0, gcd(0, 0)) + self.assertEqual(1, gcd(1, 0)) + self.assertEqual(-1, gcd(-1, 0)) + self.assertEqual(1, gcd(0, 1)) + self.assertEqual(-1, gcd(0, -1)) + self.assertEqual(1, gcd(7, 1)) + self.assertEqual(-1, gcd(7, -1)) + self.assertEqual(1, gcd(-23, 15)) + self.assertEqual(12, gcd(120, 84)) + self.assertEqual(-12, gcd(84, -120)) + self.assertEqual(gcd(120.0, 84), 12.0) + self.assertEqual(gcd(120, 84.0), 12.0) + self.assertEqual(gcd(F(120), F(84)), F(12)) + self.assertEqual(gcd(F(120, 77), F(84, 55)), F(12, 385)) def _components(r): diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py index 023dea9465..fcd78d508e 100644 --- a/Lib/test/test_math.py +++ b/Lib/test/test_math.py @@ -175,6 +175,14 @@ def parse_testfile(fname): flags ) +# Class providing an __index__ method. +class MyIndexable(object): + def __init__(self, value): + self.value = value + + def __index__(self): + return self.value + class MathTests(unittest.TestCase): def ftest(self, name, value, expected): @@ -595,6 +603,49 @@ class MathTests(unittest.TestCase): s = msum(vals) self.assertEqual(msum(vals), math.fsum(vals)) + def testGcd(self): + gcd = math.gcd + self.assertEqual(gcd(0, 0), 0) + self.assertEqual(gcd(1, 0), 1) + self.assertEqual(gcd(-1, 0), 1) + self.assertEqual(gcd(0, 1), 1) + self.assertEqual(gcd(0, -1), 1) + self.assertEqual(gcd(7, 1), 1) + self.assertEqual(gcd(7, -1), 1) + self.assertEqual(gcd(-23, 15), 1) + self.assertEqual(gcd(120, 84), 12) + self.assertEqual(gcd(84, -120), 12) + self.assertEqual(gcd(1216342683557601535506311712, + 436522681849110124616458784), 32) + c = 652560 + x = 434610456570399902378880679233098819019853229470286994367836600566 + y = 1064502245825115327754847244914921553977 + a = x * c + b = y * c + self.assertEqual(gcd(a, b), c) + self.assertEqual(gcd(b, a), c) + self.assertEqual(gcd(-a, b), c) + self.assertEqual(gcd(b, -a), c) + self.assertEqual(gcd(a, -b), c) + self.assertEqual(gcd(-b, a), c) + self.assertEqual(gcd(-a, -b), c) + self.assertEqual(gcd(-b, -a), c) + c = 576559230871654959816130551884856912003141446781646602790216406874 + a = x * c + b = y * c + self.assertEqual(gcd(a, b), c) + self.assertEqual(gcd(b, a), c) + self.assertEqual(gcd(-a, b), c) + self.assertEqual(gcd(b, -a), c) + self.assertEqual(gcd(a, -b), c) + self.assertEqual(gcd(-b, a), c) + self.assertEqual(gcd(-a, -b), c) + self.assertEqual(gcd(-b, -a), c) + + self.assertRaises(TypeError, gcd, 120.0, 84) + self.assertRaises(TypeError, gcd, 120, 84.0) + self.assertEqual(gcd(MyIndexable(120), MyIndexable(84)), 12) + def testHypot(self): self.assertRaises(TypeError, math.hypot) self.ftest('hypot(0,0)', math.hypot(0,0), 0) |