Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r64089 | armin.ronacher | 2008-06-10 22:37:02 +0200 (mar., 10 juin 2008) | 3 lines

  Fix a formatting error in the ast documentation.
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  r64098 | raymond.hettinger | 2008-06-11 02:25:29 +0200 (mer., 11 juin 2008) | 6 lines

  Mini-PEP: Simplifying numbers.py
  * Convert binary methods in Integral to mixin methods
  * Remove three-arg __pow__ as a required method
  * Make __int__ the root method instead of __long__.
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  r64100 | raymond.hettinger | 2008-06-11 02:28:51 +0200 (mer., 11 juin 2008) | 1 line

  Update numbers doc for the Integral simplification.
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  r64101 | raymond.hettinger | 2008-06-11 02:44:47 +0200 (mer., 11 juin 2008) | 3 lines

  Handle the case with zero arguments.
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  r64102 | benjamin.peterson | 2008-06-11 03:31:28 +0200 (mer., 11 juin 2008) | 4 lines

  convert test_struct to a unittest thanks to Giampaolo Rodola
  I had to disable one test because it was functioning incorrectly, see #1530559
  I also removed the debugging prints
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  r64113 | thomas.heller | 2008-06-11 09:10:43 +0200 (mer., 11 juin 2008) | 2 lines

  Fix markup.
  Document the new 'offset' parameter for the 'ctypes.byref' function.
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  r64115 | raymond.hettinger | 2008-06-11 12:30:54 +0200 (mer., 11 juin 2008) | 1 line

  Multi-arg form for set.difference() and set.difference_update().
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  r64116 | raymond.hettinger | 2008-06-11 14:06:49 +0200 (mer., 11 juin 2008) | 1 line

  Issue 3051:  Let heapq work with either __lt__ or __le__.
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  r64118 | raymond.hettinger | 2008-06-11 14:39:09 +0200 (mer., 11 juin 2008) | 1 line

  Optimize previous checkin for heapq.
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  r64120 | raymond.hettinger | 2008-06-11 15:14:50 +0200 (mer., 11 juin 2008) | 1 line

  Add test for heapq using both __lt__ and __le__.
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  r64132 | gregory.p.smith | 2008-06-11 20:00:52 +0200 (mer., 11 juin 2008) | 3 lines

  Correct an incorrect comment about our #include of stddef.h.
  (see Doug Evans' comment on python-dev 2008-06-10)
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  r64342 | guido.van.rossum | 2008-06-17 19:38:02 +0200 (mar., 17 juin 2008) | 3 lines

  Roll back Raymond's -r64098 while we think of something better.
  (See issue 3056 -- we're close to a resolution but need unittests.)
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1 files changed, 20 insertions, 0 deletions

diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index ed2db18..f263a7d 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -105,6 +105,12 @@ class TestJointOps(unittest.TestCase):
             self.assertEqual(self.thetype('abcba').intersection(C('ccb')), set('bc'))
             self.assertEqual(self.thetype('abcba').intersection(C('ef')), set(''))
             self.assertEqual(self.thetype('abcba').intersection(C('cbcf'), C('bag')), set('b'))
+        s = self.thetype('abcba')
+        z = s.intersection()
+        if self.thetype == frozenset():
+            self.assertEqual(id(s), id(z))
+        else:
+            self.assertNotEqual(id(s), id(z))
 
     def test_isdisjoint(self):
         def f(s1, s2):
@@ -144,6 +150,8 @@ class TestJointOps(unittest.TestCase):
             self.assertEqual(self.thetype('abcba').difference(C('efgfe')), set('abc'))
             self.assertEqual(self.thetype('abcba').difference(C('ccb')), set('a'))
             self.assertEqual(self.thetype('abcba').difference(C('ef')), set('abc'))
+            self.assertEqual(self.thetype('abcba').difference(), set('abc'))
+            self.assertEqual(self.thetype('abcba').difference(C('a'), C('b')), set('c'))
 
     def test_sub(self):
         i = self.s.difference(self.otherword)
@@ -470,6 +478,18 @@ class TestSet(TestJointOps):
                 self.assertEqual(s.difference_update(C(p)), None)
                 self.assertEqual(s, set(q))
 
+                s = self.thetype('abcdefghih')
+                s.difference_update()
+                self.assertEqual(s, self.thetype('abcdefghih'))
+
+                s = self.thetype('abcdefghih')
+                s.difference_update(C('aba'))
+                self.assertEqual(s, self.thetype('cdefghih'))
+
+                s = self.thetype('abcdefghih')
+                s.difference_update(C('cdc'), C('aba'))
+                self.assertEqual(s, self.thetype('efghih'))
+
     def test_isub(self):
         self.s -= set(self.otherword)
         for c in (self.word + self.otherword):