1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
import unittest
from test import test_support
import operator
from sys import maxint
maxsize = test_support.MAX_Py_ssize_t
minsize = -maxsize-1
class oldstyle:
def __index__(self):
return self.ind
class newstyle(object):
def __index__(self):
return self.ind
class TrapInt(int):
def __index__(self):
return self
class TrapLong(long):
def __index__(self):
return self
class BaseTestCase(unittest.TestCase):
def setUp(self):
self.o = oldstyle()
self.n = newstyle()
def test_basic(self):
self.o.ind = -2
self.n.ind = 2
self.assertEqual(operator.index(self.o), -2)
self.assertEqual(operator.index(self.n), 2)
def test_slice(self):
self.o.ind = 1
self.n.ind = 2
slc = slice(self.o, self.o, self.o)
check_slc = slice(1, 1, 1)
self.assertEqual(slc.indices(self.o), check_slc.indices(1))
slc = slice(self.n, self.n, self.n)
check_slc = slice(2, 2, 2)
self.assertEqual(slc.indices(self.n), check_slc.indices(2))
def test_wrappers(self):
self.o.ind = 4
self.n.ind = 5
self.assertEqual(6 .__index__(), 6)
self.assertEqual(-7L.__index__(), -7)
self.assertEqual(self.o.__index__(), 4)
self.assertEqual(self.n.__index__(), 5)
def test_subclasses(self):
r = range(10)
self.assertEqual(r[TrapInt(5):TrapInt(10)], r[5:10])
self.assertEqual(r[TrapLong(5):TrapLong(10)], r[5:10])
self.assertEqual(slice(TrapInt()).indices(0), (0,0,1))
self.assertEqual(slice(TrapLong(0)).indices(0), (0,0,1))
def test_error(self):
self.o.ind = 'dumb'
self.n.ind = 'bad'
self.failUnlessRaises(TypeError, operator.index, self.o)
self.failUnlessRaises(TypeError, operator.index, self.n)
self.failUnlessRaises(TypeError, slice(self.o).indices, 0)
self.failUnlessRaises(TypeError, slice(self.n).indices, 0)
class SeqTestCase(unittest.TestCase):
# This test case isn't run directly. It just defines common tests
# to the different sequence types below
def setUp(self):
self.o = oldstyle()
self.n = newstyle()
self.o2 = oldstyle()
self.n2 = newstyle()
def test_index(self):
self.o.ind = -2
self.n.ind = 2
self.assertEqual(self.seq[self.n], self.seq[2])
self.assertEqual(self.seq[self.o], self.seq[-2])
def test_slice(self):
self.o.ind = 1
self.o2.ind = 3
self.n.ind = 2
self.n2.ind = 4
self.assertEqual(self.seq[self.o:self.o2], self.seq[1:3])
self.assertEqual(self.seq[self.n:self.n2], self.seq[2:4])
def test_repeat(self):
self.o.ind = 3
self.n.ind = 2
self.assertEqual(self.seq * self.o, self.seq * 3)
self.assertEqual(self.seq * self.n, self.seq * 2)
self.assertEqual(self.o * self.seq, self.seq * 3)
self.assertEqual(self.n * self.seq, self.seq * 2)
def test_wrappers(self):
self.o.ind = 4
self.n.ind = 5
self.assertEqual(self.seq.__getitem__(self.o), self.seq[4])
self.assertEqual(self.seq.__mul__(self.o), self.seq * 4)
self.assertEqual(self.seq.__rmul__(self.o), self.seq * 4)
self.assertEqual(self.seq.__getitem__(self.n), self.seq[5])
self.assertEqual(self.seq.__mul__(self.n), self.seq * 5)
self.assertEqual(self.seq.__rmul__(self.n), self.seq * 5)
def test_subclasses(self):
self.assertEqual(self.seq[TrapInt()], self.seq[0])
self.assertEqual(self.seq[TrapLong()], self.seq[0])
def test_error(self):
self.o.ind = 'dumb'
self.n.ind = 'bad'
indexobj = lambda x, obj: obj.seq[x]
self.failUnlessRaises(TypeError, indexobj, self.o, self)
self.failUnlessRaises(TypeError, indexobj, self.n, self)
sliceobj = lambda x, obj: obj.seq[x:]
self.failUnlessRaises(TypeError, sliceobj, self.o, self)
self.failUnlessRaises(TypeError, sliceobj, self.n, self)
class ListTestCase(SeqTestCase):
seq = [0,10,20,30,40,50]
def test_setdelitem(self):
self.o.ind = -2
self.n.ind = 2
lst = list('ab!cdefghi!j')
del lst[self.o]
del lst[self.n]
lst[self.o] = 'X'
lst[self.n] = 'Y'
self.assertEqual(lst, list('abYdefghXj'))
lst = [5, 6, 7, 8, 9, 10, 11]
lst.__setitem__(self.n, "here")
self.assertEqual(lst, [5, 6, "here", 8, 9, 10, 11])
lst.__delitem__(self.n)
self.assertEqual(lst, [5, 6, 8, 9, 10, 11])
def test_inplace_repeat(self):
self.o.ind = 2
self.n.ind = 3
lst = [6, 4]
lst *= self.o
self.assertEqual(lst, [6, 4, 6, 4])
lst *= self.n
self.assertEqual(lst, [6, 4, 6, 4] * 3)
lst = [5, 6, 7, 8, 9, 11]
l2 = lst.__imul__(self.n)
self.assert_(l2 is lst)
self.assertEqual(lst, [5, 6, 7, 8, 9, 11] * 3)
class TupleTestCase(SeqTestCase):
seq = (0,10,20,30,40,50)
class StringTestCase(SeqTestCase):
seq = "this is a test"
class UnicodeTestCase(SeqTestCase):
seq = u"this is a test"
class XRangeTestCase(unittest.TestCase):
def test_xrange(self):
n = newstyle()
n.ind = 5
self.assertEqual(xrange(1, 20)[n], 6)
self.assertEqual(xrange(1, 20).__getitem__(n), 6)
class OverflowTestCase(unittest.TestCase):
def setUp(self):
self.pos = 2**100
self.neg = -self.pos
def test_large_longs(self):
self.assertEqual(self.pos.__index__(), self.pos)
self.assertEqual(self.neg.__index__(), self.neg)
def _getitem_helper(self, base):
class GetItem(base):
def __len__(self):
return maxint #cannot return long here
def __getitem__(self, key):
return key
def __getslice__(self, i, j):
return i, j
x = GetItem()
self.assertEqual(x[self.pos], self.pos)
self.assertEqual(x[self.neg], self.neg)
self.assertEqual(x[self.neg:self.pos], (maxint+minsize, maxsize))
self.assertEqual(x[self.neg:self.pos:1].indices(maxsize), (0, maxsize, 1))
def test_getitem(self):
self._getitem_helper(object)
def test_getitem_classic(self):
class Empty: pass
self._getitem_helper(Empty)
def test_sequence_repeat(self):
self.failUnlessRaises(OverflowError, lambda: "a" * self.pos)
self.failUnlessRaises(OverflowError, lambda: "a" * self.neg)
def test_main():
test_support.run_unittest(
BaseTestCase,
ListTestCase,
TupleTestCase,
StringTestCase,
UnicodeTestCase,
XRangeTestCase,
OverflowTestCase,
)
if __name__ == "__main__":
test_main()
|
