Merged revisions 59666-59679 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r59666 | christian.heimes | 2008-01-02 19:28:32 +0100 (Wed, 02 Jan 2008) | 1 line

  Made vs9to8 Unix compatible
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  r59669 | guido.van.rossum | 2008-01-02 20:00:46 +0100 (Wed, 02 Jan 2008) | 2 lines

  Patch #1696.  Don't attempt to close None in dry-run mode.
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  r59671 | jeffrey.yasskin | 2008-01-03 03:21:52 +0100 (Thu, 03 Jan 2008) | 6 lines

  Backport PEP 3141 from the py3k branch to the trunk. This includes r50877 (just
  the complex_pow part), r56649, r56652, r56715, r57296, r57302, r57359, r57361,
  r57372, r57738, r57739, r58017, r58039, r58040, and r59390, and new
  documentation. The only significant difference is that round(x) returns a float
  to preserve backward-compatibility. See http://bugs.python.org/issue1689.
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  r59672 | christian.heimes | 2008-01-03 16:41:30 +0100 (Thu, 03 Jan 2008) | 1 line

  Issue #1726: Remove Python/atof.c from PCBuild/pythoncore.vcproj
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  r59675 | guido.van.rossum | 2008-01-03 20:12:44 +0100 (Thu, 03 Jan 2008) | 4 lines

  Issue #1700, reported by Nguyen Quan Son, fix by Fredruk Lundh:
  Regular Expression inline flags not handled correctly for some unicode
  characters.  (Forward port from 2.5.2.)
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  r59676 | christian.heimes | 2008-01-03 21:23:15 +0100 (Thu, 03 Jan 2008) | 1 line

  Added math.isinf() and math.isnan()
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  r59677 | christian.heimes | 2008-01-03 22:14:48 +0100 (Thu, 03 Jan 2008) | 1 line

  Some build bots don't compile mathmodule. There is an issue with the long definition of pi and euler
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  r59678 | christian.heimes | 2008-01-03 23:16:32 +0100 (Thu, 03 Jan 2008) | 2 lines

  Modified PyImport_Import and PyImport_ImportModule to always use absolute imports by calling __import__ with an explicit level of 0
  Added a new API function PyImport_ImportModuleNoBlock. It solves the problem with dead locks when mixing threads and imports
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  r59679 | christian.heimes | 2008-01-03 23:32:26 +0100 (Thu, 03 Jan 2008) | 1 line

  Added copysign(x, y) function to the math module
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1 files changed, 23 insertions, 0 deletions

diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py
index 2d15f3a..8449794 100644
--- a/Lib/test/test_math.py
+++ b/Lib/test/test_math.py
@@ -231,6 +231,29 @@ class MathTests(unittest.TestCase):
         self.ftest('tanh(0)', math.tanh(0), 0)
         self.ftest('tanh(1)+tanh(-1)', math.tanh(1)+math.tanh(-1), 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.assert_(math.isnan(float("nan")))
+        self.assert_(math.isnan(float("inf")* 0.))
+        self.failIf(math.isnan(float("inf")))
+        self.failIf(math.isnan(0.))
+        self.failIf(math.isnan(1.))
+
+    def testIsinf(self):
+        self.assert_(math.isinf(float("inf")))
+        self.assert_(math.isinf(float("-inf")))
+        self.assert_(math.isinf(1E400))
+        self.assert_(math.isinf(-1E400))
+        self.failIf(math.isinf(float("nan")))
+        self.failIf(math.isinf(0.))
+        self.failIf(math.isinf(1.))
+
     # RED_FLAG 16-Oct-2000 Tim
     # While 2.0 is more consistent about exceptions than previous releases, it
     # still fails this part of the test on some platforms.  For now, we only