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tests.py
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tests.py
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##############################################################################
#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
import cPickle
import unittest
from Record import Record
class R(Record):
__record_schema__ = {'a': 0, 'b': 1, 'c': 2}
class RecordTest(unittest.TestCase):
def test_init(self):
r = R()
self.assertEqual(tuple(r), (None, None, None))
r = R((1, 2, 3))
self.assertEqual(tuple(r), (1, 2, 3))
r = R([1, 2, 3])
self.assertEqual(tuple(r), (1, 2, 3))
r = R({})
self.assertEqual(tuple(r), (None, None, None))
r = R({'a': 1, 'c': 3, 'd': 4})
self.assertEqual(tuple(r), (1, None, 3))
r = R((1, 2))
self.assertEqual(tuple(r), (1, 2, None))
r = R((1, 2, 3, 4))
self.assertEqual(tuple(r), (1, 2, 3))
def test_init_two(self):
parent = object()
r = R((1, 2, None), parent)
self.assertEqual(tuple(r), (1, 2, None))
def test_pickling(self):
# We can create records from sequences
r = R(('x', 42, 1.23))
# We can pickle them
r2 = cPickle.loads(cPickle.dumps(r))
self.assertEqual(list(r), list(r2))
self.assertEqual(r.__record_schema__, r2.__record_schema__)
def test_pickle_old(self):
r = R(('x', 42, 1.23))
p0 = ("ccopy_reg\n__newobj__\np1\n(cRecord.tests\nR\np2\ntRp3\n"
"(S'x'\nI42\nF1.23\ntb.")
p1 = ('ccopy_reg\n__newobj__\nq\x01(cRecord.tests\nR\nq\x02tRq\x03'
'(U\x01xK*G?\xf3\xae\x14z\xe1G\xaetb.')
p2 = ('\x80\x02cRecord.tests\nR\nq\x01)\x81q\x02U\x01xK*G?\xf3\xae'
'\x14z\xe1G\xae\x87b.')
for p in (p0, p1, p2):
r2 = cPickle.loads(p)
self.assertEqual(list(r), list(r2))
self.assertEqual(r.__record_schema__, r2.__record_schema__)
def test_pickle_old_empty(self):
r = R()
p0 = 'ccopy_reg\n__newobj__\np1\n(cRecord.tests\nR\np2\ntRp3\n(NNNtb.'
p1 = ('ccopy_reg\n__newobj__\nq\x01(cRecord.tests\nR\nq\x02tRq'
'\x03(NNNtb.')
p2 = '\x80\x02cRecord.tests\nR\nq\x01)\x81q\x02NNN\x87b.'
for p in (p0, p1, p2):
r2 = cPickle.loads(p)
self.assertEqual(list(r), list(r2))
self.assertEqual(r.__record_schema__, r2.__record_schema__)
def test_no_dict(self):
r = R((1, 2, 3))
d = getattr(r, '__dict__', {})
self.assertEqual(d, {})
def test_attribute(self):
r = R()
self.assertTrue(r.a is None)
self.assertTrue(r.b is None)
self.assertTrue(r.c is None)
r.a = 1
self.assertEqual(r.a, 1)
self.assertEqual(getattr(r, 'd', 2), 2)
self.assertRaises(AttributeError, getattr, r, 'd')
self.assertRaises(AttributeError, setattr, r, 'd', 2)
del r.a
self.assertTrue(r.a is None)
r.b = 2
delattr(r, 'b')
self.assertTrue(r.b is None)
def test_mapping(self):
r = R()
r.a = 1
self.assertEqual('%(a)s %(b)s %(c)s' % r, '1 None None')
self.assertEqual(r['a'], 1)
r['b'] = 42
self.assertEqual(r['b'], 42)
self.assertEqual(r.b, 42)
self.assertRaises(KeyError, r.__getitem__, 'd')
self.assertRaises(KeyError, r.__setitem__, 'd', 2)
del r['a']
self.assertTrue(r.a is None)
self.assertRaises(TypeError, r.__delitem__, 1)
def test_sequence(self):
r = R()
r.a = 1
r.b = 42
self.assertEqual(r[0], 1)
self.assertEqual(r[1], 42)
r[1] = 6
self.assertEqual(r[1], 6)
self.assertEqual(r.b, 6)
r[2] = 7
self.assertEqual(r[2], 7)
self.assertEqual(r.c, 7)
self.assertEqual(list(r), [1, 6, 7])
def test_contains(self):
r = R((1, 2, None))
self.assertTrue('a' in r)
self.assertTrue('c' in r)
self.assertFalse('d' in r)
def test_slice(self):
r = R((1, 2, None))
self.assertRaises(TypeError, r.__getslice__, 0, 1)
self.assertRaises(TypeError, r.__setslice__, 0, 1, (1, 2))
self.assertRaises(TypeError, r.__delslice__, 0, 1)
def test_add(self):
r1 = R((1, 2, None))
r2 = R((1, 2, None))
self.assertRaises(TypeError, r1.__add__, r2)
def test_mul(self):
r = R((1, 2, None))
self.assertRaises(TypeError, r.__mul__, 3)
def test_len(self):
r = R((1, 2, None))
self.assertEqual(len(r), 3)
def test_cmp(self):
r1 = R((1, 2, None))
r2 = R((1, 2, None))
self.assertEqual(r1, r2)
self.assertFalse(r1 is r2)
self.assertTrue(r1 <= r2)
self.assertTrue(r1 >= r2)
self.assertFalse(r1 != r2)
self.assertFalse(r1 > r2)
self.assertFalse(r1 < r2)
r3 = R((1, 2, 3))
self.assertNotEqual(r1, r3)
self.assertFalse(r1 is r3)
self.assertTrue(r1 <= r3)
self.assertFalse(r1 >= r3)
self.assertTrue(r1 != r3)
self.assertFalse(r1 > r3)
self.assertTrue(r1 < r3)
def test_cmp_different_schema(self):
class R2(Record):
__record_schema__ = {'a': 0, 'b': 1}
r1 = R((1, 2, None))
r2 = R2((1, 2))
self.assertNotEqual(r1, r2)
self.assertTrue(r1 > r2)
self.assertFalse(r1 < r2)
r1 = R((1, 2, 3))
self.assertNotEqual(r1, r2)
self.assertFalse(r1 <= r2)
self.assertTrue(r1 >= r2)
self.assertTrue(r1 != r2)
self.assertTrue(r1 > r2)
self.assertFalse(r1 < r2)
def test_cmp_other(self):
r = R((1, 2, None))
self.assertNotEqual(r, (1, 2, None))
self.assertNotEqual(r, [1, 2, None])
self.assertNotEqual(r, {'a': 1, 'b': 2, 'c': None})
self.assertNotEqual(r, 1)
self.assertNotEqual(r, 'a')
def test_repr(self):
r = R((1, 2, None))
self.assertTrue(repr(r).startswith('<Record.tests.R '))
self.assertTrue(str(r).startswith('<Record.tests.R '))
self.assertTrue(unicode(r).startswith(u'<Record.tests.R '))
def test_schema(self):
class R(Record):
__record_schema__ = {'a': 0}
R.__record_schema__ = {'a': 0, 'b': 1}
r = R((1, 2))
self.assertEqual(list(r), [1, 2])
R.__record_schema__ = {'a': 0}
# an existing instance won't get a schema update from the class
self.assertEqual(list(r), [1, 2])
# but new instances will use the new schema
r2 = R((1, 2))
self.assertEqual(list(r2), [1])