Limnoria/test/utils_test.py

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#!/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 test import *
import utils
class UtilsTest(unittest.TestCase):
def testTimeElapsed(self):
self.assertRaises(ValueError, utils.timeElapsed, 0, 0, seconds=False)
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then = 0
now = 0
for now, expected in [(0, '0 seconds'),
(1, '1 second'),
(60, '1 minute and 0 seconds'),
(61, '1 minute and 1 second'),
(62, '1 minute and 2 seconds'),
(122, '2 minutes and 2 seconds'),
(3722, '1 hour, 2 minutes and 2 seconds'),
(7322, '2 hours, 2 minutes and 2 seconds')]:
self.assertEqual(utils.timeElapsed(now, then), expected)
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def testEachSubstring(self):
s = 'foobar'
L = ['f', 'fo', 'foo', 'foob', 'fooba', 'foobar']
self.assertEqual(list(utils.eachSubstring(s)), L)
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def testDistance(self):
self.assertEqual(utils.distance('', ''), 0)
self.assertEqual(utils.distance('a', 'b'), 1)
self.assertEqual(utils.distance('a', 'a'), 0)
self.assertEqual(utils.distance('foobar', 'jemfinch'), 8)
self.assertEqual(utils.distance('a', 'ab'), 1)
self.assertEqual(utils.distance('foo', ''), 3)
self.assertEqual(utils.distance('', 'foo'), 3)
self.assertEqual(utils.distance('appel', 'nappe'), 2)
self.assertEqual(utils.distance('nappe', 'appel'), 2)
def testAbbrev(self):
L = ['abc', 'bcd', 'bbe', 'foo', 'fool']
d = utils.abbrev(L)
def getItem(s):
return d[s]
self.assertRaises(KeyError, getItem, 'f')
self.assertRaises(KeyError, getItem, 'fo')
self.assertRaises(KeyError, getItem, 'b')
self.assertEqual(d['bb'], 'bbe')
self.assertEqual(d['bc'], 'bcd')
self.assertEqual(d['a'], 'abc')
self.assertEqual(d['ab'], 'abc')
self.assertEqual(d['fool'], 'fool')
self.assertEqual(d['foo'], 'foo')
def testSoundex(self):
L = [('Euler', 'E460'),
('Ellery', 'E460'),
('Gauss', 'G200'),
('Ghosh', 'G200'),
('Hilbert', 'H416'),
('Heilbronn', 'H416'),
('Knuth', 'K530'),
('Kant', 'K530'),
('Lloyd', 'L300'),
('Ladd', 'L300'),
('Lukasiewicz', 'L222'),
('Lissajous', 'L222')]
for (name, key) in L:
soundex = utils.soundex(name)
self.assertEqual(soundex, key,
'%s was %s, not %s' % (name, soundex, key))
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def testDQRepr(self):
L = [('foo', '"foo"'),
('foo\'bar', '"foo\'bar"'),
('foo"bar', '"foo\\"bar"'),
('"', '"\\""'),
('', '""'),
('\x00', '"\\x00"')]
for (s, r) in L:
self.assertEqual(r, utils.dqrepr(s))
self.assertEqual(s, eval(utils.dqrepr(s)))
def testPerlReToPythonRe(self):
r = utils.perlReToPythonRe('m/foo/')
self.failUnless(r.search('foo'))
r = utils.perlReToPythonRe('/foo/')
self.failUnless(r.search('foo'))
r = utils.perlReToPythonRe('m/\\//')
self.failUnless(r.search('/'))
def testPerlReToReplacer(self):
f = utils.perlReToReplacer('s/foo/bar/')
self.assertEqual(f('foobarbaz'), 'barbarbaz')
f = utils.perlReToReplacer('s/fool/bar/')
self.assertEqual(f('foobarbaz'), 'foobarbaz')
f = utils.perlReToReplacer('s/foo//')
self.assertEqual(f('foobarbaz'), 'barbaz')
f = utils.perlReToReplacer('s/ba//')
self.assertEqual(f('foobarbaz'), 'foorbaz')
f = utils.perlReToReplacer('s/ba//g')
self.assertEqual(f('foobarbaz'), 'foorz')
f = utils.perlReToReplacer('s/ba\\///g')
self.assertEqual(f('fooba/rba/z'), 'foorz')