[Python-checkins] python/dist/src/Lib/test test_itertools.py,1.4,1.5

[rhettinger@users.sourceforge.net]

Update of /cvsroot/python/python/dist/src/Lib/test
In directory sc8-pr-cvs1:/tmp/cvs-serv23087/Lib/test

Modified Files:
	test_itertools.py 
Log Message:
User requested changes to the itertools module.
Subsumed times() into repeat().  
Added cycle() and chain().



Index: test_itertools.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/test/test_itertools.py,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** test_itertools.py	9 Feb 2003 06:40:58 -0000	1.4
--- test_itertools.py	23 Feb 2003 04:40:07 -0000	1.5
***************
*** 5,8 ****
--- 5,11 ----
  
  class TestBasicOps(unittest.TestCase):
+     def test_chain(self):
+         self.assertEqual(list(chain('abc', 'def')), list('abcdef'))
+ 
      def test_count(self):
          self.assertEqual(zip('abc',count()), [('a', 0), ('b', 1), ('c', 2)])
***************
*** 10,13 ****
--- 13,20 ----
          self.assertRaises(TypeError, count, 2, 3)
  
+     def test_cycle(self):
+         self.assertEqual(list(islice(cycle('abc'),10)), list('abcabcabca'))
+         self.assertEqual(list(cycle('')), [])
+ 
      def test_ifilter(self):
          def isEven(x):
***************
*** 36,46 ****
          self.assertEqual(zip(xrange(3),repeat('a')),
                           [(0, 'a'), (1, 'a'), (2, 'a')])
          self.assertRaises(TypeError, repeat)
  
-     def test_times(self):
-         self.assertEqual(list(times(3)), [None]*3)
-         self.assertEqual(list(times(3, True)), [True]*3)
-         self.assertRaises(ValueError, times, -1)
- 
      def test_imap(self):
          import operator
--- 43,49 ----
          self.assertEqual(zip(xrange(3),repeat('a')),
                           [(0, 'a'), (1, 'a'), (2, 'a')])
+         self.assertEqual(list(repeat('a', 3)), ['a', 'a', 'a'])
          self.assertRaises(TypeError, repeat)
  
      def test_imap(self):
          import operator
***************
*** 95,104 ****
  libreftest = """ Doctest for examples in the library reference, libitertools.tex
  
- >>> for i in times(3):
- ...     print "Hello"
- ...
- Hello
- Hello
- Hello
  
  >>> amounts = [120.15, 764.05, 823.14]
--- 98,101 ----
***************
*** 154,157 ****
--- 151,158 ----
  ...     "Returns True if pred(x) is False for every element in the iterable"
  ...     return not nth(ifilter(pred, seq), 0)
+ 
+ >>> def pairwise(seq):
+ ...     "s -> (s0,s1), (s1,s2), (s2, s3), ..."
+ ...     return izip(seq, islice(seq,1,len(seq)))
  
  """