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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
|
import unittest
from test.support import import_helper
_testlimitedcapi = import_helper.import_module('_testlimitedcapi')
_testcapi = import_helper.import_module('_testcapi')
from _testcapi import PY_SSIZE_T_MIN, PY_SSIZE_T_MAX
NULL = None
class BytesSubclass(bytes):
pass
class BytesLike:
def __init__(self, value):
self.value = value
def __bytes__(self):
return self.value
class CAPITest(unittest.TestCase):
def test_check(self):
# Test PyBytes_Check()
check = _testlimitedcapi.bytes_check
self.assertTrue(check(b'abc'))
self.assertTrue(check(b''))
self.assertFalse(check('abc'))
self.assertFalse(check(bytearray(b'abc')))
self.assertTrue(check(BytesSubclass(b'abc')))
self.assertFalse(check(BytesLike(b'abc')))
self.assertFalse(check(3))
self.assertFalse(check([]))
self.assertFalse(check(object()))
# CRASHES check(NULL)
def test_checkexact(self):
# Test PyBytes_CheckExact()
check = _testlimitedcapi.bytes_checkexact
self.assertTrue(check(b'abc'))
self.assertTrue(check(b''))
self.assertFalse(check('abc'))
self.assertFalse(check(bytearray(b'abc')))
self.assertFalse(check(BytesSubclass(b'abc')))
self.assertFalse(check(BytesLike(b'abc')))
self.assertFalse(check(3))
self.assertFalse(check([]))
self.assertFalse(check(object()))
# CRASHES check(NULL)
def test_fromstringandsize(self):
# Test PyBytes_FromStringAndSize()
fromstringandsize = _testlimitedcapi.bytes_fromstringandsize
self.assertEqual(fromstringandsize(b'abc'), b'abc')
self.assertEqual(fromstringandsize(b'abc', 2), b'ab')
self.assertEqual(fromstringandsize(b'abc\0def'), b'abc\0def')
self.assertEqual(fromstringandsize(b'a'), b'a')
self.assertEqual(fromstringandsize(b'a', 1), b'a')
self.assertEqual(fromstringandsize(b'', 0), b'')
self.assertEqual(fromstringandsize(NULL, 0), b'')
self.assertEqual(len(fromstringandsize(NULL, 3)), 3)
self.assertRaises((MemoryError, OverflowError),
fromstringandsize, NULL, PY_SSIZE_T_MAX)
self.assertRaises(SystemError, fromstringandsize, b'abc', -1)
self.assertRaises(SystemError, fromstringandsize, b'abc', PY_SSIZE_T_MIN)
self.assertRaises(SystemError, fromstringandsize, NULL, -1)
self.assertRaises(SystemError, fromstringandsize, NULL, PY_SSIZE_T_MIN)
def test_fromstring(self):
# Test PyBytes_FromString()
fromstring = _testlimitedcapi.bytes_fromstring
self.assertEqual(fromstring(b'abc\0def'), b'abc')
self.assertEqual(fromstring(b''), b'')
# CRASHES fromstring(NULL)
def test_fromobject(self):
# Test PyBytes_FromObject()
fromobject = _testlimitedcapi.bytes_fromobject
self.assertEqual(fromobject(b''), b'')
self.assertEqual(fromobject(b'abc'), b'abc')
self.assertEqual(fromobject(bytearray(b'abc')), b'abc')
self.assertEqual(fromobject(BytesSubclass(b'abc')), b'abc')
self.assertEqual(fromobject([97, 98, 99]), b'abc')
self.assertRaises(TypeError, fromobject, 3)
self.assertRaises(TypeError, fromobject, BytesLike(b'abc'))
self.assertRaises(TypeError, fromobject, 'abc')
self.assertRaises(TypeError, fromobject, object())
self.assertRaises(SystemError, fromobject, NULL)
def test_size(self):
# Test PyBytes_Size()
size = _testlimitedcapi.bytes_size
self.assertEqual(size(b''), 0)
self.assertEqual(size(b'abc'), 3)
self.assertEqual(size(BytesSubclass(b'abc')), 3)
self.assertRaises(TypeError, size, bytearray(b'abc'))
self.assertRaises(TypeError, size, 'abc')
self.assertRaises(TypeError, size, object())
# CRASHES size(NULL)
def test_asstring(self):
"""Test PyBytes_AsString()"""
asstring = _testlimitedcapi.bytes_asstring
self.assertEqual(asstring(b'abc', 4), b'abc\0')
self.assertEqual(asstring(b'abc\0def', 8), b'abc\0def\0')
self.assertEqual(asstring(b'', 1), b'\0')
self.assertRaises(TypeError, asstring, 'abc', 0)
self.assertRaises(TypeError, asstring, object(), 0)
# CRASHES asstring(NULL, 0)
def test_asstringandsize(self):
"""Test PyBytes_AsStringAndSize()"""
asstringandsize = _testlimitedcapi.bytes_asstringandsize
asstringandsize_null = _testlimitedcapi.bytes_asstringandsize_null
self.assertEqual(asstringandsize(b'abc', 4), (b'abc\0', 3))
self.assertEqual(asstringandsize(b'abc\0def', 8), (b'abc\0def\0', 7))
self.assertEqual(asstringandsize(b'', 1), (b'\0', 0))
self.assertEqual(asstringandsize_null(b'abc', 4), b'abc\0')
self.assertRaises(ValueError, asstringandsize_null, b'abc\0def', 8)
self.assertRaises(TypeError, asstringandsize, 'abc', 0)
self.assertRaises(TypeError, asstringandsize_null, 'abc', 0)
self.assertRaises(TypeError, asstringandsize, object(), 0)
self.assertRaises(TypeError, asstringandsize_null, object(), 0)
# CRASHES asstringandsize(NULL, 0)
# CRASHES asstringandsize_null(NULL, 0)
def test_repr(self):
# Test PyBytes_Repr()
bytes_repr = _testlimitedcapi.bytes_repr
self.assertEqual(bytes_repr(b'', 0), r"""b''""")
self.assertEqual(bytes_repr(b'''abc''', 0), r"""b'abc'""")
self.assertEqual(bytes_repr(b'''abc''', 1), r"""b'abc'""")
self.assertEqual(bytes_repr(b'''a'b"c"d''', 0), r"""b'a\'b"c"d'""")
self.assertEqual(bytes_repr(b'''a'b"c"d''', 1), r"""b'a\'b"c"d'""")
self.assertEqual(bytes_repr(b'''a'b"c''', 0), r"""b'a\'b"c'""")
self.assertEqual(bytes_repr(b'''a'b"c''', 1), r"""b'a\'b"c'""")
self.assertEqual(bytes_repr(b'''a'b'c"d''', 0), r"""b'a\'b\'c"d'""")
self.assertEqual(bytes_repr(b'''a'b'c"d''', 1), r"""b'a\'b\'c"d'""")
self.assertEqual(bytes_repr(b'''a'b'c'd''', 0), r"""b'a\'b\'c\'d'""")
self.assertEqual(bytes_repr(b'''a'b'c'd''', 1), r'''b"a'b'c'd"''')
self.assertEqual(bytes_repr(BytesSubclass(b'abc'), 0), r"""b'abc'""")
# UDEFINED bytes_repr(object(), 0)
# CRASHES bytes_repr(NULL, 0)
def test_concat(self, concat=None):
"""Test PyBytes_Concat()"""
if concat is None:
concat = _testlimitedcapi.bytes_concat
self.assertEqual(concat(b'abc', b'def'), b'abcdef')
self.assertEqual(concat(b'a\0b', b'c\0d'), b'a\0bc\0d')
self.assertEqual(concat(bytearray(b'abc'), b'def'), b'abcdef')
self.assertEqual(concat(b'abc', bytearray(b'def')), b'abcdef')
self.assertEqual(concat(bytearray(b'abc'), b''), b'abc')
self.assertEqual(concat(b'', bytearray(b'def')), b'def')
self.assertEqual(concat(memoryview(b'xabcy')[1:4], b'def'), b'abcdef')
self.assertEqual(concat(b'abc', memoryview(b'xdefy')[1:4]), b'abcdef')
self.assertEqual(concat(b'', b''), b'')
self.assertEqual(concat(b'abc', b'def', True), b'abcdef')
self.assertEqual(concat(b'abc', bytearray(b'def'), True), b'abcdef')
# Check that it does not change the singleton
self.assertEqual(concat(bytes(), b'def', True), b'def')
self.assertEqual(len(bytes()), 0)
self.assertRaises(TypeError, concat, memoryview(b'axbycz')[::2], b'def')
self.assertRaises(TypeError, concat, b'abc', memoryview(b'dxeyfz')[::2])
self.assertRaises(TypeError, concat, b'abc', 'def')
self.assertRaises(TypeError, concat, 'abc', b'def')
self.assertRaises(TypeError, concat, 'abc', 'def')
self.assertRaises(TypeError, concat, [], b'def')
self.assertRaises(TypeError, concat, b'abc', [])
self.assertRaises(TypeError, concat, [], [])
self.assertEqual(concat(NULL, b'def'), NULL)
self.assertEqual(concat(b'abc', NULL), NULL)
self.assertEqual(concat(NULL, object()), NULL)
self.assertEqual(concat(object(), NULL), NULL)
def test_concatanddel(self):
"""Test PyBytes_ConcatAndDel()"""
self.test_concat(_testlimitedcapi.bytes_concatanddel)
def test_decodeescape(self):
"""Test PyBytes_DecodeEscape()"""
decodeescape = _testlimitedcapi.bytes_decodeescape
self.assertEqual(decodeescape(b''), b'')
self.assertEqual(decodeescape(b'abc'), b'abc')
self.assertEqual(decodeescape(br'\t\n\r\x0b\x0c\x00\\\'\"'),
b'''\t\n\r\v\f\0\\'"''')
self.assertEqual(decodeescape(b'\t\n\r\x0b\x0c\x00'), b'\t\n\r\v\f\0')
self.assertEqual(decodeescape(br'\xa1\xa2'), b'\xa1\xa2')
self.assertEqual(decodeescape(br'\2\24\241'), b'\x02\x14\xa1')
self.assertEqual(decodeescape(b'\xa1\xa2'), b'\xa1\xa2')
with self.assertWarns(DeprecationWarning):
self.assertEqual(decodeescape(br'\u4f60'), br'\u4f60')
with self.assertWarns(DeprecationWarning):
self.assertEqual(decodeescape(br'\z'), br'\z')
with self.assertWarns(DeprecationWarning):
self.assertEqual(decodeescape(br'\541'), b'a')
for b in b'\\', br'\x', br'\xa', br'\xz', br'\xaz':
self.assertRaises(ValueError, decodeescape, b)
self.assertRaises(ValueError, decodeescape, b, 'strict')
self.assertEqual(decodeescape(br'x\xa', 'replace'), b'x?')
self.assertEqual(decodeescape(br'x\xay', 'replace'), b'x?y')
self.assertEqual(decodeescape(br'x\xa\xy', 'replace'), b'x??y')
self.assertEqual(decodeescape(br'x\xa\xy', 'ignore'), b'xy')
self.assertRaises(ValueError, decodeescape, b'\\', 'spam')
self.assertEqual(decodeescape(NULL), b'')
self.assertRaises(OverflowError, decodeescape, b'abc', NULL, PY_SSIZE_T_MAX)
self.assertRaises(OverflowError, decodeescape, NULL, NULL, PY_SSIZE_T_MAX)
# CRASHES decodeescape(b'abc', NULL, -1)
# CRASHES decodeescape(NULL, NULL, 1)
def test_resize(self):
"""Test _PyBytes_Resize()"""
resize = _testcapi.bytes_resize
for new in True, False:
self.assertEqual(resize(b'abc', 0, new), b'')
self.assertEqual(resize(b'abc', 1, new), b'a')
self.assertEqual(resize(b'abc', 2, new), b'ab')
self.assertEqual(resize(b'abc', 3, new), b'abc')
b = resize(b'abc', 4, new)
self.assertEqual(len(b), 4)
self.assertEqual(b[:3], b'abc')
self.assertEqual(resize(b'a', 0, new), b'')
self.assertEqual(resize(b'a', 1, new), b'a')
b = resize(b'a', 2, new)
self.assertEqual(len(b), 2)
self.assertEqual(b[:1], b'a')
self.assertEqual(resize(b'', 0, new), b'')
self.assertEqual(len(resize(b'', 1, new)), 1)
self.assertEqual(len(resize(b'', 2, new)), 2)
self.assertRaises(SystemError, resize, b'abc', -1, False)
self.assertRaises(SystemError, resize, bytearray(b'abc'), 3, False)
# CRASHES resize(NULL, 0, False)
# CRASHES resize(NULL, 3, False)
def test_join(self):
"""Test PyBytes_Join()"""
bytes_join = _testcapi.bytes_join
self.assertEqual(bytes_join(b'', []), b'')
self.assertEqual(bytes_join(b'sep', []), b'')
self.assertEqual(bytes_join(b'', [b'a', b'b', b'c']), b'abc')
self.assertEqual(bytes_join(b'-', [b'a', b'b', b'c']), b'a-b-c')
self.assertEqual(bytes_join(b' - ', [b'a', b'b', b'c']), b'a - b - c')
self.assertEqual(bytes_join(b'-', [bytearray(b'abc'),
memoryview(b'def')]),
b'abc-def')
self.assertEqual(bytes_join(b'-', iter([b'a', b'b', b'c'])), b'a-b-c')
# invalid 'sep' argument
with self.assertRaises(TypeError):
bytes_join(bytearray(b'sep'), [])
with self.assertRaises(TypeError):
bytes_join(memoryview(b'sep'), [])
with self.assertRaises(TypeError):
bytes_join('', []) # empty Unicode string
with self.assertRaises(TypeError):
bytes_join('unicode', [])
with self.assertRaises(TypeError):
bytes_join(123, [])
with self.assertRaises(SystemError):
self.assertEqual(bytes_join(NULL, [b'a', b'b', b'c']), b'abc')
# invalid 'iterable' argument
with self.assertRaises(TypeError):
bytes_join(b'', [b'bytes', 'unicode'])
with self.assertRaises(TypeError):
bytes_join(b'', [b'bytes', 123])
with self.assertRaises(TypeError):
bytes_join(b'', 123)
with self.assertRaises(SystemError):
bytes_join(b'', NULL)
class BytesWriterTest(unittest.TestCase):
result_type = bytes
def create_writer(self, alloc=0, string=b''):
return _testcapi.PyBytesWriter(alloc, string, 0)
def test_create(self):
# Test PyBytesWriter_Create()
writer = self.create_writer()
self.assertEqual(writer.get_size(), 0)
self.assertEqual(writer.finish(), self.result_type(b''))
writer = self.create_writer(3, b'abc')
self.assertEqual(writer.get_size(), 3)
self.assertEqual(writer.finish(), self.result_type(b'abc'))
writer = self.create_writer(10, b'abc')
self.assertEqual(writer.get_size(), 10)
self.assertEqual(writer.finish_with_size(3), self.result_type(b'abc'))
def test_write_bytes(self):
# Test PyBytesWriter_WriteBytes()
writer = self.create_writer()
writer.write_bytes(b'Hello World!', -1)
self.assertEqual(writer.finish(), self.result_type(b'Hello World!'))
writer = self.create_writer()
writer.write_bytes(b'Hello ', -1)
writer.write_bytes(b'World! <truncated>', 6)
self.assertEqual(writer.finish(), self.result_type(b'Hello World!'))
def test_resize(self):
# Test PyBytesWriter_Resize()
writer = self.create_writer()
writer.resize(len(b'number=123456'), b'number=123456')
writer.resize(len(b'number=123456'), b'')
self.assertEqual(writer.get_size(), len(b'number=123456'))
self.assertEqual(writer.finish(), self.result_type(b'number=123456'))
writer = self.create_writer()
writer.resize(0, b'')
writer.resize(len(b'number=123456'), b'number=123456')
self.assertEqual(writer.finish(), self.result_type(b'number=123456'))
writer = self.create_writer()
writer.resize(len(b'number='), b'number=')
writer.resize(len(b'number=123456'), b'123456')
self.assertEqual(writer.finish(), self.result_type(b'number=123456'))
writer = self.create_writer()
writer.resize(len(b'number='), b'number=')
writer.resize(len(b'number='), b'')
writer.resize(len(b'number=123456'), b'123456')
self.assertEqual(writer.finish(), self.result_type(b'number=123456'))
writer = self.create_writer()
writer.resize(len(b'number'), b'number')
writer.resize(len(b'number='), b'=')
writer.resize(len(b'number=123'), b'123')
writer.resize(len(b'number=123456'), b'456')
self.assertEqual(writer.finish(), self.result_type(b'number=123456'))
def test_format_i(self):
# Test PyBytesWriter_Format()
writer = self.create_writer()
writer.format_i(b'x=%i', 123456)
self.assertEqual(writer.finish(), self.result_type(b'x=123456'))
writer = self.create_writer()
writer.format_i(b'x=%i, ', 123)
writer.format_i(b'y=%i', 456)
self.assertEqual(writer.finish(), self.result_type(b'x=123, y=456'))
def test_example_abc(self):
self.assertEqual(_testcapi.byteswriter_abc(), b'abc')
def test_example_resize(self):
self.assertEqual(_testcapi.byteswriter_resize(), b'Hello World')
def test_example_highlevel(self):
self.assertEqual(_testcapi.byteswriter_highlevel(), b'Hello World!')
class ByteArrayWriterTest(BytesWriterTest):
result_type = bytearray
def create_writer(self, alloc=0, string=b''):
return _testcapi.PyBytesWriter(alloc, string, 1)
if __name__ == "__main__":
unittest.main()
|
