Limnoria/test/test_utils.py

###
# Copyright (c) 2002-2005, Jeremiah Fincher
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###

from supybot.test import *

import time
import supybot.utils as utils

class GenTest(SupyTestCase):
    def testInsensitivePreservingDict(self):
        ipd = utils.InsensitivePreservingDict
        d = ipd(dict(Foo=10))
        self.failUnless(d['foo'] == 10)
        self.assertEqual(d.keys(), ['Foo'])
        self.assertEqual(d.get('foo'), 10)
        self.assertEqual(d.get('Foo'), 10)

    def testFindBinaryInPath(self):
        if os.name == 'posix':
            self.assertEqual(None, utils.findBinaryInPath('asdfhjklasdfhjkl'))
            self.failUnless(utils.findBinaryInPath('sh').endswith('/bin/sh'))

    def testExnToString(self):
        try:
            raise KeyError, 1
        except Exception, e:
            self.assertEqual(utils.exnToString(e), 'KeyError: 1')
        try:
            raise EOFError
        except Exception, e:
            self.assertEqual(utils.exnToString(e), 'EOFError')

    def testSaltHash(self):
        s = utils.saltHash('jemfinch')
        (salt, hash) = s.split('|')
        self.assertEqual(utils.saltHash('jemfinch', salt=salt), s)

    def testSafeEval(self):
        for s in ['1', '()', '(1,)', '[]', '{}', '{1:2}', '{1:(2,3)}',
                  '1.0', '[1,2,3]', 'True', 'False', 'None',
                  '(True,False,None)', '"foo"', '{"foo": "bar"}']:
            self.assertEqual(eval(s), utils.safeEval(s))
        for s in ['lambda: 2', 'import foo', 'foo.bar']:
            self.assertRaises(ValueError, utils.safeEval, s)

    def testSafeEvalTurnsSyntaxErrorIntoValueError(self):
        self.assertRaises(ValueError, utils.safeEval, '/usr/local/')

    def testIterableMap(self):
        class alist(utils.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 testSortBy(self):
        L = ['abc', 'z', 'AD']
        utils.sortBy(len, L)
        self.assertEqual(L, ['z', 'AD', 'abc'])
        utils.sortBy(str.lower, L)
        self.assertEqual(L, ['abc', 'AD', 'z'])
        L = ['supybot', 'Supybot']
        utils.sortBy(str.lower, L)
        self.assertEqual(L, ['supybot', 'Supybot'])

    def testSorted(self):
        L = ['a', 'c', 'b']
        self.assertEqual(utils.sorted(L), ['a', 'b', 'c'])
        self.assertEqual(L, ['a', 'c', 'b'])
        def mycmp(x, y):
            return -cmp(x, y)
        self.assertEqual(utils.sorted(L, mycmp), ['c', 'b', 'a'])

    def testTimeElapsed(self):
        self.assertRaises(ValueError, utils.timeElapsed, 0,
                          leadingZeroes=False, seconds=False)
        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'),
                              (90061,'1 day, 1 hour, 1 minute, and 1 second'),
                              (180122, '2 days, 2 hours, 2 minutes, '
                                       'and 2 seconds')]:
            self.assertEqual(utils.timeElapsed(now - then), expected)

    def timeElapsedShort(self):
        self.assertEqual(utils.timeElapsed(123, short=True), '2m 3s')

    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 testAbbrevFailsWithDups(self):
        L = ['english', 'english']
        self.assertRaises(ValueError, utils.abbrev, L)


class StrTest(SupyTestCase):
    def testMatchCase(self):
        f = utils.str.matchCase
        self.assertEqual('bar', f('foo', 'bar'))
        self.assertEqual('Bar', f('Foo', 'bar'))
        self.assertEqual('BAr', f('FOo', 'bar'))
        self.assertEqual('BAR', f('FOO', 'bar'))
        self.assertEqual('bAR', f('fOO', 'bar'))
        self.assertEqual('baR', f('foO', 'bar'))
        self.assertEqual('BaR', f('FoO', 'bar'))

    def testPluralize(self):
        f = utils.str.pluralize
        self.assertEqual('bike', f('bike', 1))
        self.assertEqual('bikes', f('bike', 2))
        self.assertEqual('BIKE', f('BIKE', 1))
        self.assertEqual('BIKES', f('BIKE', 2))
        self.assertEqual('match', f('match', 1))
        self.assertEqual('matches', f('match', 2))
        self.assertEqual('Patch', f('Patch', 1))
        self.assertEqual('Patches', f('Patch', 2))
        self.assertEqual('fish', f('fish', 1))
        self.assertEqual('fishes', f('fish', 2))
        self.assertEqual('try', f('try', 1))
        self.assertEqual('tries', f('try', 2))
        self.assertEqual('day', f('day', 1))
        self.assertEqual('days', f('day', 2))

    def testDepluralize(self):
        f = utils.str.depluralize
        self.assertEqual('bike', f('bikes'))
        self.assertEqual('Bike', f('Bikes'))
        self.assertEqual('BIKE', f('BIKES'))
        self.assertEqual('match', f('matches'))
        self.assertEqual('Match', f('Matches'))
        self.assertEqual('fish', f('fishes'))
        self.assertEqual('try', f('tries'))

    def testDistance(self):
        self.assertEqual(utils.str.distance('', ''), 0)
        self.assertEqual(utils.str.distance('a', 'b'), 1)
        self.assertEqual(utils.str.distance('a', 'a'), 0)
        self.assertEqual(utils.str.distance('foobar', 'jemfinch'), 8)
        self.assertEqual(utils.str.distance('a', 'ab'), 1)
        self.assertEqual(utils.str.distance('foo', ''), 3)
        self.assertEqual(utils.str.distance('', 'foo'), 3)
        self.assertEqual(utils.str.distance('appel', 'nappe'), 2)
        self.assertEqual(utils.str.distance('nappe', 'appel'), 2)

    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.str.soundex(name)
            self.assertEqual(soundex, key,
                             '%s was %s, not %s' % (name, soundex, key))
        self.assertRaises(ValueError, utils.str.soundex, '3')
        self.assertRaises(ValueError, utils.str.soundex, "'")

    def testDQRepr(self):
        L = ['foo', 'foo\'bar', 'foo"bar', '"', '\\', '', '\x00']
        for s in L:
            r = utils.str.dqrepr(s)
            self.assertEqual(s, eval(r), s)
            self.failUnless(r[0] == '"' and r[-1] == '"', s)

    def testPerlReToPythonRe(self):
        f = utils.str.perlReToPythonRe
        r = f('m/foo/')
        self.failUnless(r.search('foo'))
        r = f('/foo/')
        self.failUnless(r.search('foo'))
        r = f('m/\\//')
        self.failUnless(r.search('/'))
        r = f('m/cat/i')
        self.failUnless(r.search('CAT'))
        self.assertRaises(ValueError, f, 'm/?/')

    def testP2PReDifferentSeparator(self):
        r = utils.str.perlReToPythonRe('m!foo!')
        self.failUnless(r.search('foo'))

    def testPerlReToReplacer(self):
        PRTR = utils.str.perlReToReplacer
        f = PRTR('s/foo/bar/')
        self.assertEqual(f('foobarbaz'), 'barbarbaz')
        f = PRTR('s/fool/bar/')
        self.assertEqual(f('foobarbaz'), 'foobarbaz')
        f = PRTR('s/foo//')
        self.assertEqual(f('foobarbaz'), 'barbaz')
        f = PRTR('s/ba//')
        self.assertEqual(f('foobarbaz'), 'foorbaz')
        f = PRTR('s/ba//g')
        self.assertEqual(f('foobarbaz'), 'foorz')
        f = PRTR('s/ba\\///g')
        self.assertEqual(f('fooba/rba/z'), 'foorz')
        f = PRTR('s/cat/dog/i')
        self.assertEqual(f('CATFISH'), 'dogFISH')
        f = PRTR('s/foo/foo\/bar/')
        self.assertEqual(f('foo'), 'foo/bar')
        f = PRTR('s/^/foo/')
        self.assertEqual(f('bar'), 'foobar')

    def testPReToReplacerDifferentSeparator(self):
        f = utils.str.perlReToReplacer('s#foo#bar#')
        self.assertEqual(f('foobarbaz'), 'barbarbaz')

    def testPerlReToReplacerBug850931(self):
        f = utils.str.perlReToReplacer('s/\b(\w+)\b/\1./g')
        self.assertEqual(f('foo bar baz'), 'foo. bar. baz.')

    def testPerlVariableSubstitute(self):
        f = utils.str.perlVariableSubstitute
        vars = {'foo': 'bar', 'b a z': 'baz', 'b': 'c', 'i': 100,
                'f': lambda: 'called'}
        self.assertEqual(f(vars, '$foo'), 'bar')
        self.assertEqual(f(vars, '${foo}'), 'bar')
        self.assertEqual(f(vars, '$b'), 'c')
        self.assertEqual(f(vars, '${b}'), 'c')
        self.assertEqual(f(vars, '$i'), '100')
        self.assertEqual(f(vars, '${i}'), '100')
        self.assertEqual(f(vars, '$f'), 'called')
        self.assertEqual(f(vars, '${f}'), 'called')
        self.assertEqual(f(vars, '${b a z}'), 'baz')
        self.assertEqual(f(vars, '$b:$i'), 'c:100')
        
    def testCommaAndify(self):
        f = utils.str.commaAndify
        L = ['foo']
        original = L[:]
        self.assertEqual(f(L), 'foo')
        self.assertEqual(f(L, And='or'), 'foo')
        self.assertEqual(L, original)
        L.append('bar')
        original = L[:]
        self.assertEqual(f(L), 'foo and bar')
        self.assertEqual(f(L, And='or'), 'foo or bar')
        self.assertEqual(L, original)
        L.append('baz')
        original = L[:]
        self.assertEqual(f(L), 'foo, bar, and baz')
        self.assertEqual(f(L, And='or'), 'foo, bar, or baz')
        self.assertEqual(f(L, comma=';'), 'foo; bar; and baz')
        self.assertEqual(f(L, comma=';', And='or'),
                         'foo; bar; or baz')
        self.assertEqual(L, original)
        self.failUnless(f(set(L)))

    def testCommaAndifyRaisesTypeError(self):
        L = [(2,)]
        self.assertRaises(TypeError, utils.str.commaAndify, L)
        L.append((3,))
        self.assertRaises(TypeError, utils.str.commaAndify, L)

    def testUnCommaThe(self):
        f = utils.str.unCommaThe
        self.assertEqual(f('foo bar'), 'foo bar')
        self.assertEqual(f('foo bar, the'), 'the foo bar')
        self.assertEqual(f('foo bar, The'), 'The foo bar')
        self.assertEqual(f('foo bar,the'), 'the foo bar')

    def testNormalizeWhitespace(self):
        f = utils.str.normalizeWhitespace
        self.assertEqual(f('foo   bar'), 'foo bar')
        self.assertEqual(f('foo\nbar'), 'foo bar')
        self.assertEqual(f('foo\tbar'), 'foo bar')

    def testNItems(self):
        nItems = utils.str.nItems
        self.assertEqual(nItems('tool', 1, 'crazy'), '1 crazy tool')
        self.assertEqual(nItems('tool', 1), '1 tool')
        self.assertEqual(nItems('tool', 2, 'crazy'), '2 crazy tools')
        self.assertEqual(nItems('tool', 2), '2 tools')

    def testEllipsisify(self):
        f = utils.str.ellipsisify
        self.assertEqual(f('x'*30, 30), 'x'*30)
        self.failUnless(len(f('x'*35, 30)) <= 30)
        self.failUnless(f(' '.join(['xxxx']*10), 30)[:-3].endswith('xxxx'))


class IterTest(SupyTestCase):
    def testSplit(self):
        itersplit = utils.iter.split
        L = [1, 2, 3] * 3
        s = 'foo bar baz'
        self.assertEqual(list(itersplit(lambda x: x == 3, L)),
                         [[1, 2], [1, 2], [1, 2]])
        self.assertEqual(list(itersplit(lambda x: x == 3, L, yieldEmpty=True)),
                         [[1, 2], [1, 2], [1, 2], []])
        self.assertEqual(list(itersplit(lambda x: x, [])), [])
        self.assertEqual(list(itersplit(lambda c: c.isspace(), s)),
                         map(list, s.split()))
        self.assertEqual(list(itersplit('for'.__eq__, ['foo', 'for', 'bar'])),
                         [['foo'], ['bar']])
        self.assertEqual(list(itersplit('for'.__eq__,
                                        ['foo','for','bar','for', 'baz'], 1)),
                         [['foo'], ['bar', 'for', 'baz']])

    def testFlatten(self):
        def lflatten(seq):
            return list(utils.iter.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)


class FileTest(SupyTestCase):
    def testLines(self):
        L = ['foo', 'bar', '#baz', '  ', 'biff']
        self.assertEqual(list(utils.file.nonEmptyLines(L)),
                         ['foo', 'bar', '#baz', 'biff'])
        self.assertEqual(list(utils.file.nonCommentLines(L)),
                         ['foo', 'bar', '  ', 'biff'])
        self.assertEqual(list(utils.file.nonCommentNonEmptyLines(L)),
                         ['foo', 'bar', 'biff'])


class NetTest(SupyTestCase):
    def testIsIP(self):
        isIP = utils.net.isIP
        self.failIf(isIP('a.b.c'))
        self.failIf(isIP('256.0.0.0'))
        self.failUnless(isIP('127.1'))
        self.failUnless(isIP('0.0.0.0'))
        self.failUnless(isIP('100.100.100.100'))
        # This test is too flaky to bother with.
        # self.failUnless(utils.isIP('255.255.255.255'))

    def testIsIPV6(self):
        f = utils.net.isIPV6
        self.failUnless(f('2001::'))
        self.failUnless(f('2001:888:0:1::666'))

class WebTest(SupyTestCase):
    def testGetDomain(self):
        url = 'http://slashdot.org/foo/bar.exe'
        self.assertEqual(utils.web.getDomain(url), 'slashdot.org')

    if network:
        def testGetUrlWithSize(self):
            url = 'http://slashdot.org/'
            self.failUnless(len(utils.web.getUrl(url, 1024)) == 1024)

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