diff options
Diffstat (limited to 'Lib/test/test_math.py')
| -rw-r--r-- | Lib/test/test_math.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py index e5c6ead..c28902b 100644 --- a/Lib/test/test_math.py +++ b/Lib/test/test_math.py @@ -12,7 +12,11 @@ class MathTests(unittest.TestCase): def ftest(self, name, value, expected): if abs(value-expected) > eps: - self.fail('%s returned %f, expected %f'%\ + # Use %r instead of %f so the error message + # displays full precision. Otherwise discrepancies + # in the last few bits will lead to very confusing + # error messages + self.fail('%s returned %r, expected %r' % (name, value, expected)) def testConstants(self): @@ -92,6 +96,10 @@ class MathTests(unittest.TestCase): self.ftest('floor(-0.5)', math.floor(-0.5), -1) self.ftest('floor(-1.0)', math.floor(-1.0), -1) self.ftest('floor(-1.5)', math.floor(-1.5), -2) + # pow() relies on floor() to check for integers + # This fails on some platforms - so check it here + self.ftest('floor(1.23e167)', math.floor(1.23e167), 1.23e167) + self.ftest('floor(-1.23e167)', math.floor(-1.23e167), -1.23e167) def testFmod(self): self.assertRaises(TypeError, math.fmod) |