Merged revisions 59541-59561 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r59544 | raymond.hettinger | 2007-12-18 01:13:45 +0100 (Tue, 18 Dec 2007) | 1 line
Add more namedtuple() test cases. Neaten the code and comments.
........
r59545 | christian.heimes | 2007-12-18 04:38:03 +0100 (Tue, 18 Dec 2007) | 3 lines
Fixed for #1601: IDLE not working correctly on Windows (Py30a2/IDLE30a1)
Amaury's ideas works great. Should we build the Python core with WINVER=0x0500 and _WIN32_WINNT=0x0500, too?
........
r59546 | christian.heimes | 2007-12-18 10:00:13 +0100 (Tue, 18 Dec 2007) | 1 line
Make it a bit easier to test Tcl/Tk and idle from a build dir.
........
r59547 | christian.heimes | 2007-12-18 10:12:10 +0100 (Tue, 18 Dec 2007) | 1 line
Removed several unused files from the PCbuild9 directory. They are relics from the past.
........
r59548 | raymond.hettinger | 2007-12-18 19:26:18 +0100 (Tue, 18 Dec 2007) | 29 lines
Speed-up dictionary constructor by about 10%.
New opcode, STORE_MAP saves the compiler from awkward stack manipulations
and specializes for dicts using PyDict_SetItem instead of PyObject_SetItem.
Old disassembly:
0 BUILD_MAP 0
3 DUP_TOP
4 LOAD_CONST 1 (1)
7 ROT_TWO
8 LOAD_CONST 2 ('x')
11 STORE_SUBSCR
12 DUP_TOP
13 LOAD_CONST 3 (2)
16 ROT_TWO
17 LOAD_CONST 4 ('y')
20 STORE_SUBSCR
New disassembly:
0 BUILD_MAP 0
3 LOAD_CONST 1 (1)
6 LOAD_CONST 2 ('x')
9 STORE_MAP
10 LOAD_CONST 3 (2)
13 LOAD_CONST 4 ('y')
16 STORE_MAP
........
r59549 | thomas.heller | 2007-12-18 20:00:34 +0100 (Tue, 18 Dec 2007) | 2 lines
Issue #1642: Fix segfault in ctypes when trying to delete attributes.
........
r59551 | guido.van.rossum | 2007-12-18 21:10:42 +0100 (Tue, 18 Dec 2007) | 2 lines
Issue #1645 by Alberto Bertogli. Fix a comment.
........
r59553 | raymond.hettinger | 2007-12-18 22:24:09 +0100 (Tue, 18 Dec 2007) | 12 lines
Give meaning to the oparg for BUILD_MAP: estimated size of the dictionary.
Allows dictionaries to be pre-sized (upto 255 elements) saving time lost
to re-sizes with their attendant mallocs and re-insertions.
Has zero effect on small dictionaries (5 elements or fewer), a slight
benefit for dicts upto 22 elements (because they had to resize once
anyway), and more benefit for dicts upto 255 elements (saving multiple
resizes during the build-up and reducing the number of collisions on
the first insertions). Beyond 255 elements, there is no addional benefit.
........
r59554 | christian.heimes | 2007-12-18 22:56:09 +0100 (Tue, 18 Dec 2007) | 1 line
Fixed #1649: IDLE error: dictionary changed size during iteration
........
r59557 | raymond.hettinger | 2007-12-18 23:21:27 +0100 (Tue, 18 Dec 2007) | 1 line
Simplify and speedup _asdict() for named tuples.
........
r59558 | christian.heimes | 2007-12-19 00:22:54 +0100 (Wed, 19 Dec 2007) | 3 lines
Applied patch #1635: Float patch for inf and nan on Windows (and other platforms).
The patch unifies float("inf") and repr(float("inf")) on all platforms.
........
r59559 | raymond.hettinger | 2007-12-19 00:51:15 +0100 (Wed, 19 Dec 2007) | 1 line
Users demand iterable input for named tuples. The author capitulates.
........
r59560 | raymond.hettinger | 2007-12-19 01:21:06 +0100 (Wed, 19 Dec 2007) | 1 line
Beef-up tests for dict literals
........
r59561 | raymond.hettinger | 2007-12-19 01:27:21 +0100 (Wed, 19 Dec 2007) | 1 line
Zap a duplicate line
........
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py
index 922de7a..0de65cb 100644
--- a/Lib/test/test_float.py
+++ b/Lib/test/test_float.py
@@ -3,6 +3,12 @@
import os
from test import test_support
+def isinf(x):
+ return x * 0.5 == x
+
+def isnan(x):
+ return x != x
+
class FormatFunctionsTestCase(unittest.TestCase):
def setUp(self):
@@ -159,6 +165,70 @@
self.assertEqual(v, eval(repr(v)))
floats_file.close()
+# Beginning with Python 2.6 float has cross platform compatible
+# ways to create and representate inf and nan
+class InfNanTest(unittest.TestCase):
+ def test_inf_from_str(self):
+ self.assert_(isinf(float("inf")))
+ self.assert_(isinf(float("+inf")))
+ self.assert_(isinf(float("-inf")))
+
+ self.assertEqual(repr(float("inf")), "inf")
+ self.assertEqual(repr(float("+inf")), "inf")
+ self.assertEqual(repr(float("-inf")), "-inf")
+
+ self.assertEqual(repr(float("INF")), "inf")
+ self.assertEqual(repr(float("+Inf")), "inf")
+ self.assertEqual(repr(float("-iNF")), "-inf")
+
+ self.assertEqual(str(float("inf")), "inf")
+ self.assertEqual(str(float("+inf")), "inf")
+ self.assertEqual(str(float("-inf")), "-inf")
+
+ self.assertRaises(ValueError, float, "info")
+ self.assertRaises(ValueError, float, "+info")
+ self.assertRaises(ValueError, float, "-info")
+ self.assertRaises(ValueError, float, "in")
+ self.assertRaises(ValueError, float, "+in")
+ self.assertRaises(ValueError, float, "-in")
+
+ def test_inf_as_str(self):
+ self.assertEqual(repr(1e300 * 1e300), "inf")
+ self.assertEqual(repr(-1e300 * 1e300), "-inf")
+
+ self.assertEqual(str(1e300 * 1e300), "inf")
+ self.assertEqual(str(-1e300 * 1e300), "-inf")
+
+ def test_nan_from_str(self):
+ self.assert_(isnan(float("nan")))
+ self.assert_(isnan(float("+nan")))
+ self.assert_(isnan(float("-nan")))
+
+ self.assertEqual(repr(float("nan")), "nan")
+ self.assertEqual(repr(float("+nan")), "nan")
+ self.assertEqual(repr(float("-nan")), "nan")
+
+ self.assertEqual(repr(float("NAN")), "nan")
+ self.assertEqual(repr(float("+NAn")), "nan")
+ self.assertEqual(repr(float("-NaN")), "nan")
+
+ self.assertEqual(str(float("nan")), "nan")
+ self.assertEqual(str(float("+nan")), "nan")
+ self.assertEqual(str(float("-nan")), "nan")
+
+ self.assertRaises(ValueError, float, "nana")
+ self.assertRaises(ValueError, float, "+nana")
+ self.assertRaises(ValueError, float, "-nana")
+ self.assertRaises(ValueError, float, "na")
+ self.assertRaises(ValueError, float, "+na")
+ self.assertRaises(ValueError, float, "-na")
+
+ def test_nan_as_str(self):
+ self.assertEqual(repr(1e300 * 1e300 * 0), "nan")
+ self.assertEqual(repr(-1e300 * 1e300 * 0), "nan")
+
+ self.assertEqual(str(1e300 * 1e300 * 0), "nan")
+ self.assertEqual(str(-1e300 * 1e300 * 0), "nan")
def test_main():
test_support.run_unittest(
@@ -166,7 +236,8 @@
UnknownFormatTestCase,
IEEEFormatTestCase,
FormatTestCase,
- #ReprTestCase
+ ReprTestCase,
+ InfNanTest,
)
if __name__ == '__main__':