forked from python/cpython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtest_types.py
More file actions
548 lines (462 loc) · 19.9 KB
/
test_types.py
File metadata and controls
548 lines (462 loc) · 19.9 KB
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
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
# pysqlite2/test/types.py: tests for type conversion and detection
#
# Copyright (C) 2005 Gerhard Häring <[email protected]>
#
# This file is part of pysqlite.
#
# This software is provided 'as-is', without any express or implied
# warranty. In no event will the authors be held liable for any damages
# arising from the use of this software.
#
# Permission is granted to anyone to use this software for any purpose,
# including commercial applications, and to alter it and redistribute it
# freely, subject to the following restrictions:
#
# 1. The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software. If you use this software
# in a product, an acknowledgment in the product documentation would be
# appreciated but is not required.
# 2. Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
# 3. This notice may not be removed or altered from any source distribution.
import datetime
import unittest
import sqlite3 as sqlite
import sys
try:
import zlib
except ImportError:
zlib = None
from test import support
class SqliteTypeTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
self.cur = self.con.cursor()
self.cur.execute("create table test(i integer, s varchar, f number, b blob)")
def tearDown(self):
self.cur.close()
self.con.close()
def test_string(self):
self.cur.execute("insert into test(s) values (?)", ("Österreich",))
self.cur.execute("select s from test")
row = self.cur.fetchone()
self.assertEqual(row[0], "Österreich")
def test_string_with_null_character(self):
self.cur.execute("insert into test(s) values (?)", ("a\0b",))
self.cur.execute("select s from test")
row = self.cur.fetchone()
self.assertEqual(row[0], "a\0b")
def test_small_int(self):
self.cur.execute("insert into test(i) values (?)", (42,))
self.cur.execute("select i from test")
row = self.cur.fetchone()
self.assertEqual(row[0], 42)
def test_large_int(self):
num = 123456789123456789
self.cur.execute("insert into test(i) values (?)", (num,))
self.cur.execute("select i from test")
row = self.cur.fetchone()
self.assertEqual(row[0], num)
def test_float(self):
val = 3.14
self.cur.execute("insert into test(f) values (?)", (val,))
self.cur.execute("select f from test")
row = self.cur.fetchone()
self.assertEqual(row[0], val)
def test_blob(self):
sample = b"Guglhupf"
val = memoryview(sample)
self.cur.execute("insert into test(b) values (?)", (val,))
self.cur.execute("select b from test")
row = self.cur.fetchone()
self.assertEqual(row[0], sample)
def test_unicode_execute(self):
self.cur.execute("select 'Österreich'")
row = self.cur.fetchone()
self.assertEqual(row[0], "Österreich")
def test_too_large_int(self):
for value in 2**63, -2**63-1, 2**64:
with self.assertRaises(OverflowError):
self.cur.execute("insert into test(i) values (?)", (value,))
self.cur.execute("select i from test")
row = self.cur.fetchone()
self.assertIsNone(row)
def test_string_with_surrogates(self):
for value in 0xd8ff, 0xdcff:
with self.assertRaises(UnicodeEncodeError):
self.cur.execute("insert into test(s) values (?)", (chr(value),))
self.cur.execute("select s from test")
row = self.cur.fetchone()
self.assertIsNone(row)
@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
@support.bigmemtest(size=2**31, memuse=4, dry_run=False)
def test_too_large_string(self, maxsize):
with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", ('x'*(2**31-1),))
with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", ('x'*(2**31),))
self.cur.execute("select 1 from test")
row = self.cur.fetchone()
self.assertIsNone(row)
@unittest.skipUnless(sys.maxsize > 2**32, 'requires 64bit platform')
@support.bigmemtest(size=2**31, memuse=3, dry_run=False)
def test_too_large_blob(self, maxsize):
with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", (b'x'*(2**31-1),))
with self.assertRaises(sqlite.DataError):
self.cur.execute("insert into test(s) values (?)", (b'x'*(2**31),))
self.cur.execute("select 1 from test")
row = self.cur.fetchone()
self.assertIsNone(row)
class DeclTypesTests(unittest.TestCase):
class Foo:
def __init__(self, _val):
if isinstance(_val, bytes):
# sqlite3 always calls __init__ with a bytes created from a
# UTF-8 string when __conform__ was used to store the object.
_val = _val.decode('utf-8')
self.val = _val
def __eq__(self, other):
if not isinstance(other, DeclTypesTests.Foo):
return NotImplemented
return self.val == other.val
def __conform__(self, protocol):
if protocol is sqlite.PrepareProtocol:
return self.val
else:
return None
def __str__(self):
return "<%s>" % self.val
class BadConform:
def __init__(self, exc):
self.exc = exc
def __conform__(self, protocol):
raise self.exc
def setUp(self):
self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
self.cur = self.con.cursor()
self.cur.execute("""
create table test(
i int,
s str,
f float,
b bool,
u unicode,
foo foo,
bin blob,
n1 number,
n2 number(5),
bad bad,
cbin cblob)
""")
# override float, make them always return the same number
sqlite.converters["FLOAT"] = lambda x: 47.2
# and implement two custom ones
sqlite.converters["BOOL"] = lambda x: bool(int(x))
sqlite.converters["FOO"] = DeclTypesTests.Foo
sqlite.converters["BAD"] = DeclTypesTests.BadConform
sqlite.converters["WRONG"] = lambda x: "WRONG"
sqlite.converters["NUMBER"] = float
sqlite.converters["CBLOB"] = lambda x: b"blobish"
def tearDown(self):
del sqlite.converters["FLOAT"]
del sqlite.converters["BOOL"]
del sqlite.converters["FOO"]
del sqlite.converters["BAD"]
del sqlite.converters["WRONG"]
del sqlite.converters["NUMBER"]
del sqlite.converters["CBLOB"]
self.cur.close()
self.con.close()
def test_string(self):
# default
self.cur.execute("insert into test(s) values (?)", ("foo",))
self.cur.execute('select s as "s [WRONG]" from test')
row = self.cur.fetchone()
self.assertEqual(row[0], "foo")
def test_small_int(self):
# default
self.cur.execute("insert into test(i) values (?)", (42,))
self.cur.execute("select i from test")
row = self.cur.fetchone()
self.assertEqual(row[0], 42)
def test_large_int(self):
# default
num = 123456789123456789
self.cur.execute("insert into test(i) values (?)", (num,))
self.cur.execute("select i from test")
row = self.cur.fetchone()
self.assertEqual(row[0], num)
def test_float(self):
# custom
val = 3.14
self.cur.execute("insert into test(f) values (?)", (val,))
self.cur.execute("select f from test")
row = self.cur.fetchone()
self.assertEqual(row[0], 47.2)
def test_bool(self):
# custom
self.cur.execute("insert into test(b) values (?)", (False,))
self.cur.execute("select b from test")
row = self.cur.fetchone()
self.assertIs(row[0], False)
self.cur.execute("delete from test")
self.cur.execute("insert into test(b) values (?)", (True,))
self.cur.execute("select b from test")
row = self.cur.fetchone()
self.assertIs(row[0], True)
def test_unicode(self):
# default
val = "\xd6sterreich"
self.cur.execute("insert into test(u) values (?)", (val,))
self.cur.execute("select u from test")
row = self.cur.fetchone()
self.assertEqual(row[0], val)
def test_foo(self):
val = DeclTypesTests.Foo("bla")
self.cur.execute("insert into test(foo) values (?)", (val,))
self.cur.execute("select foo from test")
row = self.cur.fetchone()
self.assertEqual(row[0], val)
def test_error_in_conform(self):
val = DeclTypesTests.BadConform(TypeError)
with self.assertRaises(sqlite.ProgrammingError):
self.cur.execute("insert into test(bad) values (?)", (val,))
with self.assertRaises(sqlite.ProgrammingError):
self.cur.execute("insert into test(bad) values (:val)", {"val": val})
val = DeclTypesTests.BadConform(KeyboardInterrupt)
with self.assertRaises(KeyboardInterrupt):
self.cur.execute("insert into test(bad) values (?)", (val,))
with self.assertRaises(KeyboardInterrupt):
self.cur.execute("insert into test(bad) values (:val)", {"val": val})
def test_unsupported_seq(self):
class Bar: pass
val = Bar()
with self.assertRaises(sqlite.ProgrammingError):
self.cur.execute("insert into test(f) values (?)", (val,))
def test_unsupported_dict(self):
class Bar: pass
val = Bar()
with self.assertRaises(sqlite.ProgrammingError):
self.cur.execute("insert into test(f) values (:val)", {"val": val})
def test_blob(self):
# default
sample = b"Guglhupf"
val = memoryview(sample)
self.cur.execute("insert into test(bin) values (?)", (val,))
self.cur.execute("select bin from test")
row = self.cur.fetchone()
self.assertEqual(row[0], sample)
def test_number1(self):
self.cur.execute("insert into test(n1) values (5)")
value = self.cur.execute("select n1 from test").fetchone()[0]
# if the converter is not used, it's an int instead of a float
self.assertEqual(type(value), float)
def test_number2(self):
"""Checks whether converter names are cut off at '(' characters"""
self.cur.execute("insert into test(n2) values (5)")
value = self.cur.execute("select n2 from test").fetchone()[0]
# if the converter is not used, it's an int instead of a float
self.assertEqual(type(value), float)
def test_convert_zero_sized_blob(self):
self.con.execute("insert into test(cbin) values (?)", (b"",))
cur = self.con.execute("select cbin from test")
# Zero-sized blobs with converters returns None. This differs from
# blobs without a converter, where b"" is returned.
self.assertIsNone(cur.fetchone()[0])
class ColNamesTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES)
self.cur = self.con.cursor()
self.cur.execute("create table test(x foo)")
sqlite.converters["FOO"] = lambda x: "[%s]" % x.decode("ascii")
sqlite.converters["BAR"] = lambda x: "<%s>" % x.decode("ascii")
sqlite.converters["EXC"] = lambda x: 5/0
sqlite.converters["B1B1"] = lambda x: "MARKER"
def tearDown(self):
del sqlite.converters["FOO"]
del sqlite.converters["BAR"]
del sqlite.converters["EXC"]
del sqlite.converters["B1B1"]
self.cur.close()
self.con.close()
def test_decl_type_not_used(self):
"""
Assures that the declared type is not used when PARSE_DECLTYPES
is not set.
"""
self.cur.execute("insert into test(x) values (?)", ("xxx",))
self.cur.execute("select x from test")
val = self.cur.fetchone()[0]
self.assertEqual(val, "xxx")
def test_none(self):
self.cur.execute("insert into test(x) values (?)", (None,))
self.cur.execute("select x from test")
val = self.cur.fetchone()[0]
self.assertEqual(val, None)
def test_col_name(self):
self.cur.execute("insert into test(x) values (?)", ("xxx",))
self.cur.execute('select x as "x y [bar]" from test')
val = self.cur.fetchone()[0]
self.assertEqual(val, "<xxx>")
# Check if the stripping of colnames works. Everything after the first
# '[' (and the preceding space) should be stripped.
self.assertEqual(self.cur.description[0][0], "x y")
def test_case_in_converter_name(self):
self.cur.execute("select 'other' as \"x [b1b1]\"")
val = self.cur.fetchone()[0]
self.assertEqual(val, "MARKER")
def test_cursor_description_no_row(self):
"""
cursor.description should at least provide the column name(s), even if
no row returned.
"""
self.cur.execute("select * from test where 0 = 1")
self.assertEqual(self.cur.description[0][0], "x")
def test_cursor_description_insert(self):
self.cur.execute("insert into test values (1)")
self.assertIsNone(self.cur.description)
@unittest.skipIf(sqlite.sqlite_version_info < (3, 8, 3), "CTEs not supported")
class CommonTableExpressionTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:")
self.cur = self.con.cursor()
self.cur.execute("create table test(x foo)")
def tearDown(self):
self.cur.close()
self.con.close()
def test_cursor_description_cte_simple(self):
self.cur.execute("with one as (select 1) select * from one")
self.assertIsNotNone(self.cur.description)
self.assertEqual(self.cur.description[0][0], "1")
def test_cursor_description_cte_multiple_columns(self):
self.cur.execute("insert into test values(1)")
self.cur.execute("insert into test values(2)")
self.cur.execute("with testCTE as (select * from test) select * from testCTE")
self.assertIsNotNone(self.cur.description)
self.assertEqual(self.cur.description[0][0], "x")
def test_cursor_description_cte(self):
self.cur.execute("insert into test values (1)")
self.cur.execute("with bar as (select * from test) select * from test where x = 1")
self.assertIsNotNone(self.cur.description)
self.assertEqual(self.cur.description[0][0], "x")
self.cur.execute("with bar as (select * from test) select * from test where x = 2")
self.assertIsNotNone(self.cur.description)
self.assertEqual(self.cur.description[0][0], "x")
class ObjectAdaptationTests(unittest.TestCase):
def cast(obj):
return float(obj)
cast = staticmethod(cast)
def setUp(self):
self.con = sqlite.connect(":memory:")
try:
del sqlite.adapters[int]
except:
pass
sqlite.register_adapter(int, ObjectAdaptationTests.cast)
self.cur = self.con.cursor()
def tearDown(self):
del sqlite.adapters[(int, sqlite.PrepareProtocol)]
self.cur.close()
self.con.close()
def test_caster_is_used(self):
self.cur.execute("select ?", (4,))
val = self.cur.fetchone()[0]
self.assertEqual(type(val), float)
def test_missing_adapter(self):
with self.assertRaises(sqlite.ProgrammingError):
sqlite.adapt(1.) # No float adapter registered
def test_missing_protocol(self):
with self.assertRaises(sqlite.ProgrammingError):
sqlite.adapt(1, None)
def test_defect_proto(self):
class DefectProto():
def __adapt__(self):
return None
with self.assertRaises(sqlite.ProgrammingError):
sqlite.adapt(1., DefectProto)
def test_defect_self_adapt(self):
class DefectSelfAdapt(float):
def __conform__(self, _):
return None
with self.assertRaises(sqlite.ProgrammingError):
sqlite.adapt(DefectSelfAdapt(1.))
def test_custom_proto(self):
class CustomProto():
def __adapt__(self):
return "adapted"
self.assertEqual(sqlite.adapt(1., CustomProto), "adapted")
def test_adapt(self):
val = 42
self.assertEqual(float(val), sqlite.adapt(val))
def test_adapt_alt(self):
alt = "other"
self.assertEqual(alt, sqlite.adapt(1., None, alt))
@unittest.skipUnless(zlib, "requires zlib")
class BinaryConverterTests(unittest.TestCase):
def convert(s):
return zlib.decompress(s)
convert = staticmethod(convert)
def setUp(self):
self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_COLNAMES)
sqlite.register_converter("bin", BinaryConverterTests.convert)
def tearDown(self):
self.con.close()
def test_binary_input_for_converter(self):
testdata = b"abcdefg" * 10
result = self.con.execute('select ? as "x [bin]"', (memoryview(zlib.compress(testdata)),)).fetchone()[0]
self.assertEqual(testdata, result)
class DateTimeTests(unittest.TestCase):
def setUp(self):
self.con = sqlite.connect(":memory:", detect_types=sqlite.PARSE_DECLTYPES)
self.cur = self.con.cursor()
self.cur.execute("create table test(d date, ts timestamp)")
def tearDown(self):
self.cur.close()
self.con.close()
def test_sqlite_date(self):
d = sqlite.Date(2004, 2, 14)
with self.assertWarnsRegex(DeprecationWarning, "adapter") as cm:
self.cur.execute("insert into test(d) values (?)", (d,))
self.assertEqual(cm.filename, __file__)
self.cur.execute("select d from test")
with self.assertWarnsRegex(DeprecationWarning, "converter") as cm:
d2 = self.cur.fetchone()[0]
self.assertEqual(cm.filename, __file__)
self.assertEqual(d, d2)
def test_sqlite_timestamp(self):
ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0)
with self.assertWarnsRegex(DeprecationWarning, "adapter") as cm:
self.cur.execute("insert into test(ts) values (?)", (ts,))
self.assertEqual(cm.filename, __file__)
self.cur.execute("select ts from test")
with self.assertWarnsRegex(DeprecationWarning, "converter") as cm:
ts2 = self.cur.fetchone()[0]
self.assertEqual(cm.filename, __file__)
self.assertEqual(ts, ts2)
def test_sql_timestamp(self):
now = datetime.datetime.utcnow()
self.cur.execute("insert into test(ts) values (current_timestamp)")
self.cur.execute("select ts from test")
with self.assertWarnsRegex(DeprecationWarning, "converter"):
ts = self.cur.fetchone()[0]
self.assertEqual(type(ts), datetime.datetime)
self.assertEqual(ts.year, now.year)
def test_date_time_sub_seconds(self):
ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0, 500000)
with self.assertWarnsRegex(DeprecationWarning, "adapter"):
self.cur.execute("insert into test(ts) values (?)", (ts,))
self.cur.execute("select ts from test")
with self.assertWarnsRegex(DeprecationWarning, "converter"):
ts2 = self.cur.fetchone()[0]
self.assertEqual(ts, ts2)
def test_date_time_sub_seconds_floating_point(self):
ts = sqlite.Timestamp(2004, 2, 14, 7, 15, 0, 510241)
with self.assertWarnsRegex(DeprecationWarning, "adapter"):
self.cur.execute("insert into test(ts) values (?)", (ts,))
self.cur.execute("select ts from test")
with self.assertWarnsRegex(DeprecationWarning, "converter"):
ts2 = self.cur.fetchone()[0]
self.assertEqual(ts, ts2)
if __name__ == "__main__":
unittest.main()