Merged revisions 82646,82649-82650 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k
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r82646 | mark.dickinson | 2010-07-08 18:23:40 +0100 (Thu, 08 Jul 2010) | 1 line
In test_decimal, convert heuristic for skipping tests into an explicit skiplist.
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r82649 | mark.dickinson | 2010-07-08 20:03:34 +0100 (Thu, 08 Jul 2010) | 1 line
Fix a performance issue in Decimal.pow. Thanks Stefan Krah for finding this.
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r82650 | mark.dickinson | 2010-07-08 20:09:16 +0100 (Thu, 08 Jul 2010) | 1 line
Fix misplaced exactness check that was causing unnecessary work in Decimal.__pow__.
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diff --git a/Lib/test/decimaltestdata/extra.decTest b/Lib/test/decimaltestdata/extra.decTest
index 2640842..fce8435 100644
--- a/Lib/test/decimaltestdata/extra.decTest
+++ b/Lib/test/decimaltestdata/extra.decTest
@@ -213,7 +213,20 @@
extr1659 shift 1234567 4 -> 0
extr1660 shift 1234567 5 -> NaN Invalid_operation
+-- Cases where the power function was impossibly slow to determine that the
+-- result is inexact. Thanks Stefan Krah for identifying this problem.
+precision: 16
+maxExponent: 999999999
+minExponent: -999999999
+extr1700 power 10 1e-999999999 -> 1.000000000000000 Inexact Rounded
+extr1701 power 100.0 -557.71e-742888888 -> 1.000000000000000 Inexact Rounded
+extr1702 power 10 1e-100 -> 1.000000000000000 Inexact Rounded
+-- A couple of interesting exact cases for power. Note that the specification
+-- requires these to be reported as Inexact.
+extr1710 power 1e375 56e-3 -> 1.000000000000000E+21 Inexact Rounded
+extr1711 power 10000 0.75 -> 1000.000000000000 Inexact Rounded
+extr1712 power 1e-24 0.875 -> 1.000000000000000E-21 Inexact Rounded
-- Tests for the is_* boolean operations
precision: 9