Limnoria/test/test_fix.py

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2003-04-17 10:49:14 +02:00
#!/usr/bin/env python
###
# Copyright (c) 2002, Jeremiah Fincher
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions, and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions, and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the author of this software nor the name of
# contributors to this software may be used to endorse or promote products
# derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###
## from __future__ import generators
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from test import *
import pickle
class FunctionsTest(unittest.TestCase):
def testCatch(self):
def f():
raise Exception
catch(f)
def testReviter(self):
L = range(10)
revL = list(reviter(L))
L.reverse()
self.assertEqual(L, revL, 'reviter didn\'t return reversed list')
for elt in reviter([]):
self.fail('reviter caused iteration over empty sequence')
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def testGroup(self):
s = '1. d4 d5 2. Nf3 Nc6 3. e3 Nf6 4. Nc3 e6 5. Bd3 a6'
self.assertEqual(group(s.split(), 3)[:3],
[['1.', 'd4', 'd5'],
['2.', 'Nf3', 'Nc6'],
['3.', 'e3', 'Nf6']])
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def testWindow(self):
L = range(10)
def wwindow(*args):
return list(window(*args))
self.assertEqual(wwindow([], 1), [], 'Empty sequence, empty window')
self.assertEqual(wwindow([], 2), [], 'Empty sequence, empty window')
self.assertEqual(wwindow([], 5), [], 'Empty sequence, empty window')
self.assertEqual(wwindow([], 100), [], 'Empty sequence, empty window')
self.assertEqual(wwindow(L, 1), [[x] for x in L], 'Window length 1')
self.assertRaises(ValueError, wwindow, [], 0)
self.assertRaises(ValueError, wwindow, [], -1)
def testItersplit(self):
L = [1, 2, 3] * 3
s = 'foo bar baz'
self.assertEqual(list(itersplit(L, lambda x: x == 3)),
[[1, 2], [1, 2], [1, 2]])
self.assertEqual(list(itersplit(L, lambda x: x == 3, True)),
[[1, 2], [1, 2], [1, 2], []])
self.assertEqual(list(itersplit([], lambda x: x)), [])
self.assertEqual(list(itersplit(s, lambda c: c.isspace())),
map(list, s.split()))
def testIterableMap(self):
class alist(IterableMap):
def __init__(self):
self.L = []
def __setitem__(self, key, value):
self.L.append((key, value))
def iteritems(self):
for (k, v) in self.L:
yield (k, v)
AL = alist()
self.failIf(AL)
AL[1] = 2
AL[2] = 3
AL[3] = 4
self.failUnless(AL)
self.assertEqual(AL.items(), [(1, 2), (2, 3), (3, 4)])
self.assertEqual(list(AL.iteritems()), [(1, 2), (2, 3), (3, 4)])
self.assertEqual(AL.keys(), [1, 2, 3])
self.assertEqual(list(AL.iterkeys()), [1, 2, 3])
self.assertEqual(AL.values(), [2, 3, 4])
self.assertEqual(list(AL.itervalues()), [2, 3, 4])
self.assertEqual(len(AL), 3)
def testFlatten(self):
def lflatten(seq):
return list(flatten(seq))
self.assertEqual(lflatten([]), [])
self.assertEqual(lflatten([1]), [1])
self.assertEqual(lflatten(range(10)), range(10))
twoRanges = range(10)*2
twoRanges.sort()
self.assertEqual(lflatten(zip(range(10), range(10))), twoRanges)
self.assertEqual(lflatten([1, [2, 3], 4]), [1, 2, 3, 4])
self.assertEqual(lflatten([[[[[[[[[[]]]]]]]]]]), [])
self.assertEqual(lflatten([1, [2, [3, 4], 5], 6]), [1, 2, 3, 4, 5, 6])
self.assertRaises(TypeError, lflatten, 1)