test/unittest_utils.py
author Alexandre Fayolle <alexandre.fayolle@logilab.fr>
Thu, 22 Apr 2010 19:48:04 +0000
branchstable
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child 5389 809d3b5b3d31
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"""unit tests for module cubicweb.utils
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:organization: Logilab
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:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
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"""
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import re
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import decimal
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import datetime
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from logilab.common.testlib import TestCase, unittest_main
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from cubicweb.utils import make_uid, UStringIO, SizeConstrainedList, RepeatList
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try:
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    try:
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        import json 
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    except ImportError:
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        import simplejson as json
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    from cubicweb.utils import CubicWebJsonEncoder
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except ImportError:
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    json = None
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class MakeUidTC(TestCase):
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    def test_1(self):
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        self.assertNotEquals(make_uid('xyz'), make_uid('abcd'))
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        self.assertNotEquals(make_uid('xyz'), make_uid('xyz'))
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    def test_2(self):
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        d = set()
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        while len(d)<10000:
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            uid = make_uid('xyz')
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            if uid in d:
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                self.fail(len(d))
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            if re.match('\d', uid):
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                self.fail('make_uid must not return something begining with '
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                          'some numeric character, got %s' % uid)
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            d.add(uid)
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class UStringIOTC(TestCase):
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    def test_boolean_value(self):
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        self.assert_(UStringIO())
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class RepeatListTC(TestCase):
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    def test_base(self):
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        l = RepeatList(3, (1, 3))
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        self.assertEquals(l[0], (1, 3))
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        self.assertEquals(l[2], (1, 3))
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        self.assertEquals(l[-1], (1, 3))
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        self.assertEquals(len(l), 3)
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        # XXX
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        self.assertEquals(l[4], (1, 3))
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        self.failIf(RepeatList(0, None))
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    def test_slice(self):
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        l = RepeatList(3, (1, 3))
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        self.assertEquals(l[0:1], [(1, 3)])
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        self.assertEquals(l[0:4], [(1, 3)]*3)
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        self.assertEquals(l[:], [(1, 3)]*3)
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    def test_iter(self):
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        self.assertEquals(list(RepeatList(3, (1, 3))),
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                          [(1, 3)]*3)
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    def test_add(self):
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        l = RepeatList(3, (1, 3))
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        self.assertEquals(l + [(1, 4)], [(1, 3)]*3  + [(1, 4)])
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        self.assertEquals([(1, 4)] + l, [(1, 4)] + [(1, 3)]*3)
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        self.assertEquals(l + RepeatList(2, (2, 3)), [(1, 3)]*3 + [(2, 3)]*2)
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        x = l + RepeatList(2, (1, 3))
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        self.assertIsInstance(x, RepeatList)
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        self.assertEquals(len(x), 5)
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        self.assertEquals(x[0], (1, 3))
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        x = l + [(1, 3)] * 2
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        self.assertEquals(x, [(1, 3)] * 5)
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    def test_eq(self):
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        self.assertEquals(RepeatList(3, (1, 3)),
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                          [(1, 3)]*3)
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    def test_pop(self):
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        l = RepeatList(3, (1, 3))
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        l.pop(2)
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        self.assertEquals(l, [(1, 3)]*2)
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class SizeConstrainedListTC(TestCase):
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    def test_append(self):
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        l = SizeConstrainedList(10)
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        for i in xrange(12):
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            l.append(i)
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        self.assertEquals(l, range(2, 12))
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    def test_extend(self):
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        testdata = [(range(5), range(5)),
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                    (range(10), range(10)),
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                    (range(12), range(2, 12)),
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                    ]
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        for extension, expected in testdata:
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            l = SizeConstrainedList(10)
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            l.extend(extension)
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            yield self.assertEquals, l, expected
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class JSONEncoderTC(TestCase):
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    def setUp(self):
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        if json is None:
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            self.skip('json not available')
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    def encode(self, value):
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        return json.dumps(value, cls=CubicWebJsonEncoder)
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    def test_encoding_dates(self):
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        self.assertEquals(self.encode(datetime.datetime(2009, 9, 9, 20, 30)),
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                          '"2009/09/09 20:30:00"')
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        self.assertEquals(self.encode(datetime.date(2009, 9, 9)),
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                          '"2009/09/09"')
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        self.assertEquals(self.encode(datetime.time(20, 30)),
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                          '"20:30:00"')
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    def test_encoding_decimal(self):
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        self.assertEquals(self.encode(decimal.Decimal('1.2')), '1.2')
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    def test_encoding_unknown_stuff(self):
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        self.assertEquals(self.encode(TestCase), 'null')
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if __name__ == '__main__':
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    unittest_main()