Issue 1979: Make Decimal comparisons (other than !=, ==) involving NaN
raise InvalidOperation (and return False if InvalidOperation is trapped).
diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py
index 0c8852c..3b15df7 100644
--- a/Lib/test/test_decimal.py
+++ b/Lib/test/test_decimal.py
@@ -838,6 +838,19 @@
self.assertEqual(-Decimal(45), Decimal(-45)) # -
self.assertEqual(abs(Decimal(45)), abs(Decimal(-45))) # abs
+ def test_nan_comparisons(self):
+ n = Decimal('NaN')
+ s = Decimal('sNaN')
+ i = Decimal('Inf')
+ f = Decimal('2')
+ for x, y in [(n, n), (n, i), (i, n), (n, f), (f, n),
+ (s, n), (n, s), (s, i), (i, s), (s, f), (f, s), (s, s)]:
+ self.assert_(x != y)
+ self.assert_(not (x == y))
+ self.assert_(not (x < y))
+ self.assert_(not (x <= y))
+ self.assert_(not (x > y))
+ self.assert_(not (x >= y))
# The following are two functions used to test threading in the next class
@@ -1147,7 +1160,12 @@
checkSameDec("__add__", True)
checkSameDec("__div__", True)
checkSameDec("__divmod__", True)
- checkSameDec("__cmp__", True)
+ checkSameDec("__eq__", True)
+ checkSameDec("__ne__", True)
+ checkSameDec("__le__", True)
+ checkSameDec("__lt__", True)
+ checkSameDec("__ge__", True)
+ checkSameDec("__gt__", True)
checkSameDec("__float__")
checkSameDec("__floordiv__", True)
checkSameDec("__hash__")