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113 lines
4.5 KiB
Python
113 lines
4.5 KiB
Python
#!/usr/bin/env python
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###
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# Copyright (c) 2002, Jeremiah Fincher
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright notice,
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# this list of conditions, and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions, and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the author of this software nor the name of
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# contributors to this software may be used to endorse or promote products
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# derived from this software without specific prior written consent.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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###
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from __future__ import generators
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from test import *
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import pickle
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class FunctionsTest(unittest.TestCase):
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def testCatch(self):
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def f():
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raise Exception
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catch(f)
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def testReviter(self):
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L = range(10)
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revL = list(reviter(L))
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L.reverse()
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self.assertEqual(L, revL, 'reviter didn\'t return reversed list')
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for elt in reviter([]):
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self.fail('reviter caused iteration over empty sequence')
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def testWindow(self):
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L = range(10)
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def wwindow(*args):
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return list(window(*args))
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self.assertEqual(wwindow([], 1), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 2), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 5), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow([], 100), [], 'Empty sequence, empty window')
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self.assertEqual(wwindow(L, 1), [[x] for x in L], 'Window length 1')
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self.assertRaises(ValueError, wwindow, [], 0)
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self.assertRaises(ValueError, wwindow, [], -1)
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def testItersplit(self):
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L = [1, 2, 3] * 3
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s = 'foo bar baz'
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self.assertEqual(list(itersplit(L, lambda x: x == 3)),
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[[1, 2], [1, 2], [1, 2]])
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self.assertEqual(list(itersplit(L, lambda x: x == 3, True)),
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[[1, 2], [1, 2], [1, 2], []])
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self.assertEqual(list(itersplit([], lambda x: x)), [])
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self.assertEqual(list(itersplit(s, lambda c: c.isspace())),
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map(list, s.split()))
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def testIterableMap(self):
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class alist(IterableMap):
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def __init__(self):
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self.L = []
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def __setitem__(self, key, value):
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self.L.append((key, value))
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def iteritems(self):
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for (k, v) in self.L:
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yield (k, v)
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AL = alist()
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self.failIf(AL)
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AL[1] = 2
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AL[2] = 3
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AL[3] = 4
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self.failUnless(AL)
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self.assertEqual(AL.items(), [(1, 2), (2, 3), (3, 4)])
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self.assertEqual(list(AL.iteritems()), [(1, 2), (2, 3), (3, 4)])
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self.assertEqual(AL.keys(), [1, 2, 3])
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self.assertEqual(list(AL.iterkeys()), [1, 2, 3])
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self.assertEqual(AL.values(), [2, 3, 4])
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self.assertEqual(list(AL.itervalues()), [2, 3, 4])
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self.assertEqual(len(AL), 3)
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def testFlatten(self):
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def lflatten(seq):
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return list(flatten(seq))
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self.assertEqual(lflatten([]), [])
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self.assertEqual(lflatten([1]), [1])
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self.assertEqual(lflatten(range(10)), range(10))
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twoRanges = range(10)*2
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twoRanges.sort()
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self.assertEqual(lflatten(zip(range(10), range(10))), twoRanges)
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self.assertEqual(lflatten([1, [2, 3], 4]), [1, 2, 3, 4])
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self.assertEqual(lflatten([[[[[[[[[[]]]]]]]]]]), [])
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self.assertEqual(lflatten([1, [2, [3, 4], 5], 6]), [1, 2, 3, 4, 5, 6])
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self.assertRaises(TypeError, lflatten, 1)
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