python (3.11.7)
1 import unittest
2 from test import support
3 import operator
4 maxsize = support.MAX_Py_ssize_t
5
6 class ESC[4;38;5;81mnewstyle:
7 def __index__(self):
8 return self.ind
9
10 class ESC[4;38;5;81mTrapInt(ESC[4;38;5;149mint):
11 def __index__(self):
12 return int(self)
13
14 class ESC[4;38;5;81mBaseTestCase(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
15 def setUp(self):
16 self.o = newstyle()
17 self.n = newstyle()
18
19 def test_basic(self):
20 self.o.ind = -2
21 self.n.ind = 2
22 self.assertEqual(operator.index(self.o), -2)
23 self.assertEqual(operator.index(self.n), 2)
24
25 def test_slice(self):
26 self.o.ind = 1
27 self.n.ind = 2
28 slc = slice(self.o, self.o, self.o)
29 check_slc = slice(1, 1, 1)
30 self.assertEqual(slc.indices(self.o), check_slc.indices(1))
31 slc = slice(self.n, self.n, self.n)
32 check_slc = slice(2, 2, 2)
33 self.assertEqual(slc.indices(self.n), check_slc.indices(2))
34
35 def test_wrappers(self):
36 self.o.ind = 4
37 self.n.ind = 5
38 self.assertEqual(6 .__index__(), 6)
39 self.assertEqual(-7 .__index__(), -7)
40 self.assertEqual(self.o.__index__(), 4)
41 self.assertEqual(self.n.__index__(), 5)
42 self.assertEqual(True.__index__(), 1)
43 self.assertEqual(False.__index__(), 0)
44
45 def test_subclasses(self):
46 r = list(range(10))
47 self.assertEqual(r[TrapInt(5):TrapInt(10)], r[5:10])
48 self.assertEqual(slice(TrapInt()).indices(0), (0,0,1))
49
50 def test_error(self):
51 self.o.ind = 'dumb'
52 self.n.ind = 'bad'
53 self.assertRaises(TypeError, operator.index, self.o)
54 self.assertRaises(TypeError, operator.index, self.n)
55 self.assertRaises(TypeError, slice(self.o).indices, 0)
56 self.assertRaises(TypeError, slice(self.n).indices, 0)
57
58 def test_int_subclass_with_index(self):
59 # __index__ should be used when computing indices, even for int
60 # subclasses. See issue #17576.
61 class ESC[4;38;5;81mMyInt(ESC[4;38;5;149mint):
62 def __index__(self):
63 return int(str(self)) + 1
64
65 my_int = MyInt(7)
66 direct_index = my_int.__index__()
67 operator_index = operator.index(my_int)
68 self.assertEqual(direct_index, 8)
69 self.assertEqual(operator_index, 7)
70 # Both results should be of exact type int.
71 self.assertIs(type(direct_index), int)
72 #self.assertIs(type(operator_index), int)
73
74 def test_index_returns_int_subclass(self):
75 class ESC[4;38;5;81mBadInt:
76 def __index__(self):
77 return True
78
79 class ESC[4;38;5;81mBadInt2(ESC[4;38;5;149mint):
80 def __index__(self):
81 return True
82
83 bad_int = BadInt()
84 with self.assertWarns(DeprecationWarning):
85 n = operator.index(bad_int)
86 self.assertEqual(n, 1)
87
88 bad_int = BadInt2()
89 n = operator.index(bad_int)
90 self.assertEqual(n, 0)
91
92
93 class ESC[4;38;5;81mSeqTestCase:
94 # This test case isn't run directly. It just defines common tests
95 # to the different sequence types below
96 def setUp(self):
97 self.o = newstyle()
98 self.n = newstyle()
99 self.o2 = newstyle()
100 self.n2 = newstyle()
101
102 def test_index(self):
103 self.o.ind = -2
104 self.n.ind = 2
105 self.assertEqual(self.seq[self.n], self.seq[2])
106 self.assertEqual(self.seq[self.o], self.seq[-2])
107
108 def test_slice(self):
109 self.o.ind = 1
110 self.o2.ind = 3
111 self.n.ind = 2
112 self.n2.ind = 4
113 self.assertEqual(self.seq[self.o:self.o2], self.seq[1:3])
114 self.assertEqual(self.seq[self.n:self.n2], self.seq[2:4])
115
116 def test_slice_bug7532(self):
117 seqlen = len(self.seq)
118 self.o.ind = int(seqlen * 1.5)
119 self.n.ind = seqlen + 2
120 self.assertEqual(self.seq[self.o:], self.seq[0:0])
121 self.assertEqual(self.seq[:self.o], self.seq)
122 self.assertEqual(self.seq[self.n:], self.seq[0:0])
123 self.assertEqual(self.seq[:self.n], self.seq)
124 self.o2.ind = -seqlen - 2
125 self.n2.ind = -int(seqlen * 1.5)
126 self.assertEqual(self.seq[self.o2:], self.seq)
127 self.assertEqual(self.seq[:self.o2], self.seq[0:0])
128 self.assertEqual(self.seq[self.n2:], self.seq)
129 self.assertEqual(self.seq[:self.n2], self.seq[0:0])
130
131 def test_repeat(self):
132 self.o.ind = 3
133 self.n.ind = 2
134 self.assertEqual(self.seq * self.o, self.seq * 3)
135 self.assertEqual(self.seq * self.n, self.seq * 2)
136 self.assertEqual(self.o * self.seq, self.seq * 3)
137 self.assertEqual(self.n * self.seq, self.seq * 2)
138
139 def test_wrappers(self):
140 self.o.ind = 4
141 self.n.ind = 5
142 self.assertEqual(self.seq.__getitem__(self.o), self.seq[4])
143 self.assertEqual(self.seq.__mul__(self.o), self.seq * 4)
144 self.assertEqual(self.seq.__rmul__(self.o), self.seq * 4)
145 self.assertEqual(self.seq.__getitem__(self.n), self.seq[5])
146 self.assertEqual(self.seq.__mul__(self.n), self.seq * 5)
147 self.assertEqual(self.seq.__rmul__(self.n), self.seq * 5)
148
149 def test_subclasses(self):
150 self.assertEqual(self.seq[TrapInt()], self.seq[0])
151
152 def test_error(self):
153 self.o.ind = 'dumb'
154 self.n.ind = 'bad'
155 indexobj = lambda x, obj: obj.seq[x]
156 self.assertRaises(TypeError, indexobj, self.o, self)
157 self.assertRaises(TypeError, indexobj, self.n, self)
158 sliceobj = lambda x, obj: obj.seq[x:]
159 self.assertRaises(TypeError, sliceobj, self.o, self)
160 self.assertRaises(TypeError, sliceobj, self.n, self)
161
162
163 class ESC[4;38;5;81mListTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
164 seq = [0,10,20,30,40,50]
165
166 def test_setdelitem(self):
167 self.o.ind = -2
168 self.n.ind = 2
169 lst = list('ab!cdefghi!j')
170 del lst[self.o]
171 del lst[self.n]
172 lst[self.o] = 'X'
173 lst[self.n] = 'Y'
174 self.assertEqual(lst, list('abYdefghXj'))
175
176 lst = [5, 6, 7, 8, 9, 10, 11]
177 lst.__setitem__(self.n, "here")
178 self.assertEqual(lst, [5, 6, "here", 8, 9, 10, 11])
179 lst.__delitem__(self.n)
180 self.assertEqual(lst, [5, 6, 8, 9, 10, 11])
181
182 def test_inplace_repeat(self):
183 self.o.ind = 2
184 self.n.ind = 3
185 lst = [6, 4]
186 lst *= self.o
187 self.assertEqual(lst, [6, 4, 6, 4])
188 lst *= self.n
189 self.assertEqual(lst, [6, 4, 6, 4] * 3)
190
191 lst = [5, 6, 7, 8, 9, 11]
192 l2 = lst.__imul__(self.n)
193 self.assertIs(l2, lst)
194 self.assertEqual(lst, [5, 6, 7, 8, 9, 11] * 3)
195
196
197 class ESC[4;38;5;81mNewSeq:
198
199 def __init__(self, iterable):
200 self._list = list(iterable)
201
202 def __repr__(self):
203 return repr(self._list)
204
205 def __eq__(self, other):
206 return self._list == other
207
208 def __len__(self):
209 return len(self._list)
210
211 def __mul__(self, n):
212 return self.__class__(self._list*n)
213 __rmul__ = __mul__
214
215 def __getitem__(self, index):
216 return self._list[index]
217
218
219 class ESC[4;38;5;81mTupleTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
220 seq = (0,10,20,30,40,50)
221
222 class ESC[4;38;5;81mByteArrayTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
223 seq = bytearray(b"this is a test")
224
225 class ESC[4;38;5;81mBytesTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
226 seq = b"this is a test"
227
228 class ESC[4;38;5;81mStringTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
229 seq = "this is a test"
230
231 class ESC[4;38;5;81mNewSeqTestCase(ESC[4;38;5;149mSeqTestCase, ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
232 seq = NewSeq((0,10,20,30,40,50))
233
234
235
236 class ESC[4;38;5;81mRangeTestCase(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
237
238 def test_range(self):
239 n = newstyle()
240 n.ind = 5
241 self.assertEqual(range(1, 20)[n], 6)
242 self.assertEqual(range(1, 20).__getitem__(n), 6)
243
244
245 class ESC[4;38;5;81mOverflowTestCase(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
246
247 def setUp(self):
248 self.pos = 2**100
249 self.neg = -self.pos
250
251 def test_large_longs(self):
252 self.assertEqual(self.pos.__index__(), self.pos)
253 self.assertEqual(self.neg.__index__(), self.neg)
254
255 def test_getitem(self):
256 class ESC[4;38;5;81mGetItem:
257 def __len__(self):
258 assert False, "__len__ should not be invoked"
259 def __getitem__(self, key):
260 return key
261 x = GetItem()
262 self.assertEqual(x[self.pos], self.pos)
263 self.assertEqual(x[self.neg], self.neg)
264 self.assertEqual(x[self.neg:self.pos].indices(maxsize),
265 (0, maxsize, 1))
266 self.assertEqual(x[self.neg:self.pos:1].indices(maxsize),
267 (0, maxsize, 1))
268
269 def test_sequence_repeat(self):
270 self.assertRaises(OverflowError, lambda: "a" * self.pos)
271 self.assertRaises(OverflowError, lambda: "a" * self.neg)
272
273
274 if __name__ == "__main__":
275 unittest.main()
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