traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

testCopysign was defined twice in test_math; combine the definitions

This commit is contained in:
Mark Dickinson 2010-02-06 23:11:25 +00:00
parent df8a303dff
commit 28d4f9e668
1 changed files with 24 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
Lib/test/test_math.py
View File

@ -292,31 +292,37 @@ class MathTests(unittest.TestCase):
@requires_IEEE_754
def testCopysign(self):
self.assertEqual(math.copysign(1, 42), 1.0)
self.assertEqual(math.copysign(0., 42), 0.0)
self.assertEqual(math.copysign(1., -42), -1.0)
self.assertEqual(math.copysign(3, 0.), 3.0)
self.assertEqual(math.copysign(4., -0.), -4.0)
self.assertRaises(TypeError, math.copysign)
# copysign should let us distinguish signs of zeros
self.assertEquals(copysign(1., 0.), 1.)
self.assertEquals(copysign(1., -0.), -1.)
self.assertEquals(copysign(INF, 0.), INF)
self.assertEquals(copysign(INF, -0.), NINF)
self.assertEquals(copysign(NINF, 0.), INF)
self.assertEquals(copysign(NINF, -0.), NINF)
self.assertEquals(math.copysign(1., 0.), 1.)
self.assertEquals(math.copysign(1., -0.), -1.)
self.assertEquals(math.copysign(INF, 0.), INF)
self.assertEquals(math.copysign(INF, -0.), NINF)
self.assertEquals(math.copysign(NINF, 0.), INF)
self.assertEquals(math.copysign(NINF, -0.), NINF)
# and of infinities
self.assertEquals(copysign(1., INF), 1.)
self.assertEquals(copysign(1., NINF), -1.)
self.assertEquals(copysign(INF, INF), INF)
self.assertEquals(copysign(INF, NINF), NINF)
self.assertEquals(copysign(NINF, INF), INF)
self.assertEquals(copysign(NINF, NINF), NINF)
self.assertTrue(math.isnan(copysign(NAN, 1.)))
self.assertTrue(math.isnan(copysign(NAN, INF)))
self.assertTrue(math.isnan(copysign(NAN, NINF)))
self.assertTrue(math.isnan(copysign(NAN, NAN)))
self.assertEquals(math.copysign(1., INF), 1.)
self.assertEquals(math.copysign(1., NINF), -1.)
self.assertEquals(math.copysign(INF, INF), INF)
self.assertEquals(math.copysign(INF, NINF), NINF)
self.assertEquals(math.copysign(NINF, INF), INF)
self.assertEquals(math.copysign(NINF, NINF), NINF)
self.assertTrue(math.isnan(math.copysign(NAN, 1.)))
self.assertTrue(math.isnan(math.copysign(NAN, INF)))
self.assertTrue(math.isnan(math.copysign(NAN, NINF)))
self.assertTrue(math.isnan(math.copysign(NAN, NAN)))
# copysign(INF, NAN) may be INF or it may be NINF, since
# we don't know whether the sign bit of NAN is set on any
# given platform.
self.assertTrue(math.isinf(copysign(INF, NAN)))
self.assertTrue(math.isinf(math.copysign(INF, NAN)))
# similarly, copysign(2., NAN) could be 2. or -2.
self.assertEquals(abs(copysign(2., NAN)), 2.)
self.assertEquals(abs(math.copysign(2., NAN)), 2.)
def testCos(self):
self.assertRaises(TypeError, math.cos)
@ -878,13 +884,6 @@ class MathTests(unittest.TestCase):
self.assertEquals((), math.trunc(t))
self.assertRaises(TypeError, math.trunc, t, 0)
def testCopysign(self):
self.assertEqual(math.copysign(1, 42), 1.0)
self.assertEqual(math.copysign(0., 42), 0.0)
self.assertEqual(math.copysign(1., -42), -1.0)
self.assertEqual(math.copysign(3, 0.), 3.0)
self.assertEqual(math.copysign(4., -0.), -4.0)
def testIsnan(self):
self.assertTrue(math.isnan(float("nan")))
self.assertTrue(math.isnan(float("inf")* 0.))