diff options
Diffstat (limited to 'Lib/test/test_float.py')
| -rw-r--r-- | Lib/test/test_float.py | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py index 38a17ce..29f7756 100644 --- a/Lib/test/test_float.py +++ b/Lib/test/test_float.py @@ -1468,6 +1468,20 @@ class HexFloatTestCase(unittest.TestCase): self.identical(fromHex('0X1.0000000000001fp0'), 1.0+2*EPS) self.identical(fromHex('0x1.00000000000020p0'), 1.0+2*EPS) + # Regression test for a corner-case bug reported in b.p.o. 44954 + self.identical(fromHex('0x.8p-1074'), 0.0) + self.identical(fromHex('0x.80p-1074'), 0.0) + self.identical(fromHex('0x.81p-1074'), TINY) + self.identical(fromHex('0x8p-1078'), 0.0) + self.identical(fromHex('0x8.0p-1078'), 0.0) + self.identical(fromHex('0x8.1p-1078'), TINY) + self.identical(fromHex('0x80p-1082'), 0.0) + self.identical(fromHex('0x81p-1082'), TINY) + self.identical(fromHex('.8p-1074'), 0.0) + self.identical(fromHex('8p-1078'), 0.0) + self.identical(fromHex('-.8p-1074'), -0.0) + self.identical(fromHex('+8p-1078'), 0.0) + def test_roundtrip(self): def roundtrip(x): return fromHex(toHex(x)) |