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102 lines
4.2 KiB
Python
102 lines
4.2 KiB
Python
###
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# Copyright (c) 2002-2004, 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 testsupport import *
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import random
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import itertools
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class FunctionsTest(SupyTestCase):
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def testRandomChoice(self):
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self.assertRaises(IndexError, random.choice, {})
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def testReversed(self):
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L = range(10)
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revL = list(reversed(L))
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L.reverse()
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self.assertEqual(L, revL, 'reversed didn\'t return reversed list')
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for _ in reversed([]):
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self.fail('reversed caused iteration over empty sequence')
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def testGroup(self):
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s = '1. d4 d5 2. Nf3 Nc6 3. e3 Nf6 4. Nc3 e6 5. Bd3 a6'
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self.assertEqual(group(s.split(), 3)[:3],
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[['1.', 'd4', 'd5'],
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['2.', 'Nf3', 'Nc6'],
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['3.', 'e3', 'Nf6']])
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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 testAny(self):
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self.failUnless(any(lambda i: i == 0, range(10)))
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self.failIf(any(None, range(1)))
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self.failUnless(any(None, range(2)))
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self.failIf(any(None, []))
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def testAll(self):
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self.failIf(all(lambda i: i == 0, range(10)))
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self.failIf(all(lambda i: i % 2, range(2)))
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self.failIf(all(lambda i: i % 2 == 0, [1, 3, 5]))
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self.failUnless(all(lambda i: i % 2 == 0, [2, 4, 6]))
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self.failUnless(all(None, ()))
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def testPartition(self):
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L = range(10)
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def even(i):
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return not(i % 2)
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(yes, no) = partition(even, L)
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self.assertEqual(yes, [0, 2, 4, 6, 8])
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self.assertEqual(no, [1, 3, 5, 7, 9])
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def testIlen(self):
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self.assertEqual(itertools.ilen(iter(range(10))), 10)
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def testRsplit(self):
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self.assertEqual(rsplit('foo bar baz'), 'foo bar baz'.split())
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self.assertEqual(rsplit('foo bar baz', maxsplit=1),
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['foo bar', 'baz'])
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self.assertEqual(rsplit('foo bar baz', maxsplit=1),
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['foo bar', 'baz'])
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self.assertEqual(rsplit('foobarbaz', 'bar'), ['foo', 'baz'])
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# vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78:
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