This repository was archived by the owner on Sep 7, 2024. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 53
Expand file tree
/
Copy pathtest_typeconversion.py
More file actions
814 lines (697 loc) · 31.2 KB
/
test_typeconversion.py
File metadata and controls
814 lines (697 loc) · 31.2 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
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
import unittest
import pg8000
from pg8000 import PGJsonb, PGEnum
import datetime
import decimal
import struct
from connection_settings import db_connect
from six import b, PY2, u
import uuid
import os
import time
from distutils.version import LooseVersion
import sys
import json
import pytz
from collections import OrderedDict
IS_JYTHON = sys.platform.lower().count('java') > 0
# Type conversion tests
class Tests(unittest.TestCase):
def setUp(self):
self.db = pg8000.connect(**db_connect)
self.cursor = self.db.cursor()
def tearDown(self):
self.cursor.close()
self.cursor = None
self.db.close()
def testTimeRoundtrip(self):
self.cursor.execute("SELECT %s as f1", (datetime.time(4, 5, 6),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], datetime.time(4, 5, 6))
def testDateRoundtrip(self):
v = datetime.date(2001, 2, 3)
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testBoolRoundtrip(self):
self.cursor.execute("SELECT %s as f1", (True,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], True)
def testNullRoundtrip(self):
# We can't just "SELECT %s" and set None as the parameter, since it has
# no type. That would result in a PG error, "could not determine data
# type of parameter %s". So we create a temporary table, insert null
# values, and read them back.
self.cursor.execute(
"CREATE TEMPORARY TABLE TestNullWrite "
"(f1 int4, f2 timestamp, f3 varchar)")
self.cursor.execute(
"INSERT INTO TestNullWrite VALUES (%s, %s, %s)",
(None, None, None,))
self.cursor.execute("SELECT * FROM TestNullWrite")
retval = self.cursor.fetchone()
self.assertEqual(retval, [None, None, None])
def testNullSelectFailure(self):
# See comment in TestNullRoundtrip. This test is here to ensure that
# this behaviour is documented and doesn't mysteriously change.
self.assertRaises(
pg8000.ProgrammingError, self.cursor.execute,
"SELECT %s as f1", (None,))
self.db.rollback()
def testDecimalRoundtrip(self):
values = (
"1.1", "-1.1", "10000", "20000", "-1000000000.123456789", "1.0",
"12.44")
for v in values:
self.cursor.execute("SELECT %s as f1", (decimal.Decimal(v),))
retval = self.cursor.fetchall()
self.assertEqual(str(retval[0][0]), v)
def testFloatRoundtrip(self):
# This test ensures that the binary float value doesn't change in a
# roundtrip to the server. That could happen if the value was
# converted to text and got rounded by a decimal place somewhere.
val = 1.756e-12
bin_orig = struct.pack("!d", val)
self.cursor.execute("SELECT %s as f1", (val,))
retval = self.cursor.fetchall()
bin_new = struct.pack("!d", retval[0][0])
self.assertEqual(bin_new, bin_orig)
def test_float_plus_infinity_roundtrip(self):
v = float('inf')
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testStrRoundtrip(self):
v = "hello world"
self.cursor.execute(
"create temporary table test_str (f character varying(255))")
self.cursor.execute("INSERT INTO test_str VALUES (%s)", (v,))
self.cursor.execute("SELECT * from test_str")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
if PY2:
v = "hello \xce\x94 world"
self.cursor.execute("SELECT cast(%s as varchar) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v.decode('utf8'))
def test_str_then_int(self):
v1 = "hello world"
self.cursor.execute("SELECT cast(%s as varchar) as f1", (v1,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v1)
v2 = 1
self.cursor.execute("SELECT cast(%s as varchar) as f1", (v2,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], str(v2))
def testUnicodeRoundtrip(self):
v = u("hello \u0173 world")
self.cursor.execute("SELECT cast(%s as varchar) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testLongRoundtrip(self):
self.cursor.execute(
"SELECT %s", (50000000000000,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 50000000000000)
def testIntExecuteMany(self):
self.cursor.executemany("SELECT %s", ((1,), (40000,)))
self.cursor.fetchall()
v = ([None], [4])
self.cursor.execute(
"create temporary table test_int (f integer)")
self.cursor.executemany("INSERT INTO test_int VALUES (%s)", v)
self.cursor.execute("SELECT * from test_int")
retval = self.cursor.fetchall()
self.assertEqual(retval, v)
def testIntRoundtrip(self):
int2 = 21
int4 = 23
int8 = 20
test_values = [
(0, int2),
(-32767, int2),
(-32768, int4),
(+32767, int2),
(+32768, int4),
(-2147483647, int4),
(-2147483648, int8),
(+2147483647, int4),
(+2147483648, int8),
(-9223372036854775807, int8),
(+9223372036854775807, int8)]
for value, typoid in test_values:
self.cursor.execute("SELECT %s", (value,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], value)
column_name, column_typeoid = self.cursor.description[0][0:2]
self.assertEqual(column_typeoid, typoid)
def testByteaRoundtrip(self):
self.cursor.execute(
"SELECT %s as f1",
(pg8000.Binary(b("\x00\x01\x02\x03\x02\x01\x00")),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], b("\x00\x01\x02\x03\x02\x01\x00"))
def test_bytearray_round_trip(self):
binary = b'\x00\x01\x02\x03\x02\x01\x00'
self.cursor.execute("SELECT %s as f1", (bytearray(binary),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], binary)
def test_bytearray_subclass_round_trip(self):
class BClass(bytearray):
pass
binary = b'\x00\x01\x02\x03\x02\x01\x00'
self.cursor.execute("SELECT %s as f1", (BClass(binary),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], binary)
def testTimestampRoundtrip(self):
v = datetime.datetime(2001, 2, 3, 4, 5, 6, 170000)
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
# Test that time zone doesn't affect it
# Jython 2.5.3 doesn't have a time.tzset() so skip
if not IS_JYTHON:
orig_tz = os.environ.get('TZ')
os.environ['TZ'] = "America/Edmonton"
time.tzset()
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
if orig_tz is None:
del os.environ['TZ']
else:
os.environ['TZ'] = orig_tz
time.tzset()
def testIntervalRoundtrip(self):
v = pg8000.Interval(microseconds=123456789, days=2, months=24)
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
v = datetime.timedelta(seconds=30)
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def test_enum_str_round_trip(self):
try:
self.cursor.execute(
"create type lepton as enum ('electron', 'muon', 'tau')")
except pg8000.ProgrammingError:
self.db.rollback()
v = 'muon'
self.cursor.execute("SELECT cast(%s as lepton) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
self.cursor.execute(
"CREATE TEMPORARY TABLE testenum "
"(f1 lepton)")
self.cursor.execute(
"INSERT INTO testenum VALUES (cast(%s as lepton))", ('electron',))
self.cursor.execute("drop table testenum")
self.cursor.execute("drop type lepton")
self.db.commit()
def test_enum_custom_round_trip(self):
class Lepton(object):
# Implements PEP 435 in the minimal fashion needed
__members__ = OrderedDict()
def __init__(self, name, value, alias=None):
self.name = name
self.value = value
self.__members__[name] = self
setattr(self.__class__, name, self)
if alias:
self.__members__[alias] = self
setattr(self.__class__, alias, self)
try:
self.cursor.execute(
"create type lepton as enum ('1', '2', '3')")
except pg8000.ProgrammingError:
self.db.rollback()
v = Lepton('muon', '2')
self.cursor.execute(
"SELECT cast(%s as lepton) as f1", (PGEnum(v),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v.value)
self.cursor.execute("drop type lepton")
self.db.commit()
def test_enum_py_round_trip(self):
try:
from enum import Enum
class Lepton(Enum):
electron = '1'
muon = '2'
tau = '3'
try:
self.cursor.execute(
"create type lepton as enum ('1', '2', '3')")
except pg8000.ProgrammingError:
self.db.rollback()
v = Lepton.muon
self.cursor.execute("SELECT cast(%s as lepton) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v.value)
self.cursor.execute(
"CREATE TEMPORARY TABLE testenum "
"(f1 lepton)")
self.cursor.execute(
"INSERT INTO testenum VALUES (cast(%s as lepton))",
(Lepton.electron,))
self.cursor.execute("drop table testenum")
self.cursor.execute("drop type lepton")
self.db.commit()
except ImportError:
pass
def testXmlRoundtrip(self):
v = '<genome>gatccgagtac</genome>'
self.cursor.execute("select xmlparse(content %s) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testUuidRoundtrip(self):
v = uuid.UUID('911460f2-1f43-fea2-3e2c-e01fd5b5069d')
self.cursor.execute("select %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testInetRoundtrip(self):
try:
import ipaddress
v = ipaddress.ip_network('192.168.0.0/28')
self.cursor.execute("select %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
v = ipaddress.ip_address('192.168.0.1')
self.cursor.execute("select %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
except ImportError:
for v in ('192.168.100.128/25', '192.168.0.1'):
self.cursor.execute(
"select cast(cast(%s as varchar) as inet) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testXidRoundtrip(self):
v = 86722
self.cursor.execute(
"select cast(cast(%s as varchar) as xid) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
# Should complete without an exception
self.cursor.execute(
"select * from pg_locks where transactionid = %s", (97712,))
retval = self.cursor.fetchall()
def testInt2VectorIn(self):
self.cursor.execute("select cast('1 2' as int2vector) as f1")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [1, 2])
# Should complete without an exception
self.cursor.execute("select indkey from pg_index")
retval = self.cursor.fetchall()
def testTimestampTzOut(self):
self.cursor.execute(
"SELECT '2001-02-03 04:05:06.17 America/Edmonton'"
"::timestamp with time zone")
retval = self.cursor.fetchall()
dt = retval[0][0]
self.assertEqual(dt.tzinfo is not None, True, "no tzinfo returned")
self.assertEqual(
dt.astimezone(pg8000.utc),
datetime.datetime(2001, 2, 3, 11, 5, 6, 170000, pg8000.utc),
"retrieved value match failed")
def testTimestampTzRoundtrip(self):
if not IS_JYTHON:
mst = pytz.timezone("America/Edmonton")
v1 = mst.localize(datetime.datetime(2001, 2, 3, 4, 5, 6, 170000))
self.cursor.execute("SELECT %s as f1", (v1,))
retval = self.cursor.fetchall()
v2 = retval[0][0]
self.assertNotEqual(v2.tzinfo, None)
self.assertEqual(v1, v2)
def testTimestampMismatch(self):
if not IS_JYTHON:
mst = pytz.timezone("America/Edmonton")
self.cursor.execute("SET SESSION TIME ZONE 'America/Edmonton'")
try:
self.cursor.execute(
"CREATE TEMPORARY TABLE TestTz "
"(f1 timestamp with time zone, "
"f2 timestamp without time zone)")
self.cursor.execute(
"INSERT INTO TestTz (f1, f2) VALUES (%s, %s)", (
# insert timestamp into timestamptz field (v1)
datetime.datetime(2001, 2, 3, 4, 5, 6, 170000),
# insert timestamptz into timestamp field (v2)
mst.localize(datetime.datetime(
2001, 2, 3, 4, 5, 6, 170000))))
self.cursor.execute("SELECT f1, f2 FROM TestTz")
retval = self.cursor.fetchall()
# when inserting a timestamp into a timestamptz field,
# postgresql assumes that it is in local time. So the value
# that comes out will be the server's local time interpretation
# of v1. We've set the server's TZ to MST, the time should
# be...
f1 = retval[0][0]
self.assertEqual(
f1, datetime.datetime(
2001, 2, 3, 11, 5, 6, 170000, pytz.utc))
# inserting the timestamptz into a timestamp field, pg8000
# converts the value into UTC, and then the PG server converts
# it into local time for insertion into the field. When we
# query for it, we get the same time back, like the tz was
# dropped.
f2 = retval[0][1]
self.assertEqual(
f2, datetime.datetime(2001, 2, 3, 4, 5, 6, 170000))
finally:
self.cursor.execute("SET SESSION TIME ZONE DEFAULT")
def testNameOut(self):
# select a field that is of "name" type:
self.cursor.execute("SELECT usename FROM pg_user")
self.cursor.fetchall()
# It is sufficient that no errors were encountered.
def testOidOut(self):
self.cursor.execute("SELECT oid FROM pg_type")
self.cursor.fetchall()
# It is sufficient that no errors were encountered.
def testBooleanOut(self):
self.cursor.execute("SELECT cast('t' as bool)")
retval = self.cursor.fetchall()
self.assertTrue(retval[0][0])
def testNumericOut(self):
for num in ('5000', '50.34'):
self.cursor.execute("SELECT " + num + "::numeric")
retval = self.cursor.fetchall()
self.assertEqual(str(retval[0][0]), num)
def testInt2Out(self):
self.cursor.execute("SELECT 5000::smallint")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 5000)
def testInt4Out(self):
self.cursor.execute("SELECT 5000::integer")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 5000)
def testInt8Out(self):
self.cursor.execute("SELECT 50000000000000::bigint")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 50000000000000)
def testFloat4Out(self):
self.cursor.execute("SELECT 1.1::real")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 1.1000000238418579)
def testFloat8Out(self):
self.cursor.execute("SELECT 1.1::double precision")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 1.1000000000000001)
def testVarcharOut(self):
self.cursor.execute("SELECT 'hello'::varchar(20)")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], "hello")
def testCharOut(self):
self.cursor.execute("SELECT 'hello'::char(20)")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], "hello ")
def testTextOut(self):
self.cursor.execute("SELECT 'hello'::text")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], "hello")
def testIntervalOut(self):
self.cursor.execute(
"SELECT '1 month 16 days 12 hours 32 minutes 64 seconds'"
"::interval")
retval = self.cursor.fetchall()
expected_value = pg8000.Interval(
microseconds=(12 * 60 * 60 * 1000 * 1000) +
(32 * 60 * 1000 * 1000) + (64 * 1000 * 1000),
days=16, months=1)
self.assertEqual(retval[0][0], expected_value)
self.cursor.execute("select interval '30 seconds'")
retval = self.cursor.fetchall()
expected_value = datetime.timedelta(seconds=30)
self.assertEqual(retval[0][0], expected_value)
self.cursor.execute("select interval '12 days 30 seconds'")
retval = self.cursor.fetchall()
expected_value = datetime.timedelta(days=12, seconds=30)
self.assertEqual(retval[0][0], expected_value)
def testTimestampOut(self):
self.cursor.execute("SELECT '2001-02-03 04:05:06.17'::timestamp")
retval = self.cursor.fetchall()
self.assertEqual(
retval[0][0], datetime.datetime(2001, 2, 3, 4, 5, 6, 170000))
# confirms that pg8000's binary output methods have the same output for
# a data type as the PG server
def testBinaryOutputMethods(self):
methods = (
("float8send", 22.2),
("timestamp_send", datetime.datetime(2001, 2, 3, 4, 5, 6, 789)),
("byteasend", pg8000.Binary(b("\x01\x02"))),
("interval_send", pg8000.Interval(1234567, 123, 123)),)
for method_out, value in methods:
self.cursor.execute("SELECT %s(%%s) as f1" % method_out, (value,))
retval = self.cursor.fetchall()
self.assertEqual(
retval[0][0], self.db.make_params((value,))[0][2](value))
def testInt4ArrayOut(self):
self.cursor.execute(
"SELECT '{1,2,3,4}'::INT[] AS f1, "
"'{{1,2,3},{4,5,6}}'::INT[][] AS f2, "
"'{{{1,2},{3,4}},{{NULL,6},{7,8}}}'::INT[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [1, 2, 3, 4])
self.assertEqual(f2, [[1, 2, 3], [4, 5, 6]])
self.assertEqual(f3, [[[1, 2], [3, 4]], [[None, 6], [7, 8]]])
def testInt2ArrayOut(self):
self.cursor.execute(
"SELECT '{1,2,3,4}'::INT2[] AS f1, "
"'{{1,2,3},{4,5,6}}'::INT2[][] AS f2, "
"'{{{1,2},{3,4}},{{NULL,6},{7,8}}}'::INT2[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [1, 2, 3, 4])
self.assertEqual(f2, [[1, 2, 3], [4, 5, 6]])
self.assertEqual(f3, [[[1, 2], [3, 4]], [[None, 6], [7, 8]]])
def testInt8ArrayOut(self):
self.cursor.execute(
"SELECT '{1,2,3,4}'::INT8[] AS f1, "
"'{{1,2,3},{4,5,6}}'::INT8[][] AS f2, "
"'{{{1,2},{3,4}},{{NULL,6},{7,8}}}'::INT8[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [1, 2, 3, 4])
self.assertEqual(f2, [[1, 2, 3], [4, 5, 6]])
self.assertEqual(f3, [[[1, 2], [3, 4]], [[None, 6], [7, 8]]])
def testBoolArrayOut(self):
self.cursor.execute(
"SELECT '{TRUE,FALSE,FALSE,TRUE}'::BOOL[] AS f1, "
"'{{TRUE,FALSE,TRUE},{FALSE,TRUE,FALSE}}'::BOOL[][] AS f2, "
"'{{{TRUE,FALSE},{FALSE,TRUE}},{{NULL,TRUE},{FALSE,FALSE}}}'"
"::BOOL[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [True, False, False, True])
self.assertEqual(f2, [[True, False, True], [False, True, False]])
self.assertEqual(
f3,
[[[True, False], [False, True]], [[None, True], [False, False]]])
def testFloat4ArrayOut(self):
self.cursor.execute(
"SELECT '{1,2,3,4}'::FLOAT4[] AS f1, "
"'{{1,2,3},{4,5,6}}'::FLOAT4[][] AS f2, "
"'{{{1,2},{3,4}},{{NULL,6},{7,8}}}'::FLOAT4[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [1, 2, 3, 4])
self.assertEqual(f2, [[1, 2, 3], [4, 5, 6]])
self.assertEqual(f3, [[[1, 2], [3, 4]], [[None, 6], [7, 8]]])
def testFloat8ArrayOut(self):
self.cursor.execute(
"SELECT '{1,2,3,4}'::FLOAT8[] AS f1, "
"'{{1,2,3},{4,5,6}}'::FLOAT8[][] AS f2, "
"'{{{1,2},{3,4}},{{NULL,6},{7,8}}}'::FLOAT8[][][] AS f3")
f1, f2, f3 = self.cursor.fetchone()
self.assertEqual(f1, [1, 2, 3, 4])
self.assertEqual(f2, [[1, 2, 3], [4, 5, 6]])
self.assertEqual(f3, [[[1, 2], [3, 4]], [[None, 6], [7, 8]]])
def testIntArrayRoundtrip(self):
# send small int array, should be sent as INT2[]
self.cursor.execute("SELECT %s as f1", ([1, 2, 3],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [1, 2, 3])
column_name, column_typeoid = self.cursor.description[0][0:2]
self.assertEqual(column_typeoid, 1005, "type should be INT2[]")
# test multi-dimensional array, should be sent as INT2[]
self.cursor.execute("SELECT %s as f1", ([[1, 2], [3, 4]],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [[1, 2], [3, 4]])
column_name, column_typeoid = self.cursor.description[0][0:2]
self.assertEqual(column_typeoid, 1005, "type should be INT2[]")
# a larger value should kick it up to INT4[]...
self.cursor.execute("SELECT %s as f1 -- integer[]", ([70000, 2, 3],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [70000, 2, 3])
column_name, column_typeoid = self.cursor.description[0][0:2]
self.assertEqual(column_typeoid, 1007, "type should be INT4[]")
# a much larger value should kick it up to INT8[]...
self.cursor.execute(
"SELECT %s as f1 -- bigint[]", ([7000000000, 2, 3],))
retval = self.cursor.fetchall()
self.assertEqual(
retval[0][0], [7000000000, 2, 3],
"retrieved value match failed")
column_name, column_typeoid = self.cursor.description[0][0:2]
self.assertEqual(column_typeoid, 1016, "type should be INT8[]")
def testIntArrayWithNullRoundtrip(self):
self.cursor.execute("SELECT %s as f1", ([1, None, 3],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [1, None, 3])
def testFloatArrayRoundtrip(self):
self.cursor.execute("SELECT %s as f1", ([1.1, 2.2, 3.3],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [1.1, 2.2, 3.3])
def testBoolArrayRoundtrip(self):
self.cursor.execute("SELECT %s as f1", ([True, False, None],))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], [True, False, None])
def testStringArrayOut(self):
self.cursor.execute("SELECT '{a,b,c}'::TEXT[] AS f1")
self.assertEqual(self.cursor.fetchone()[0], ["a", "b", "c"])
self.cursor.execute("SELECT '{a,b,c}'::CHAR[] AS f1")
self.assertEqual(self.cursor.fetchone()[0], ["a", "b", "c"])
self.cursor.execute("SELECT '{a,b,c}'::VARCHAR[] AS f1")
self.assertEqual(self.cursor.fetchone()[0], ["a", "b", "c"])
self.cursor.execute("SELECT '{a,b,c}'::CSTRING[] AS f1")
self.assertEqual(self.cursor.fetchone()[0], ["a", "b", "c"])
self.cursor.execute("SELECT '{a,b,c}'::NAME[] AS f1")
self.assertEqual(self.cursor.fetchone()[0], ["a", "b", "c"])
self.cursor.execute("SELECT '{}'::text[];")
self.assertEqual(self.cursor.fetchone()[0], [])
self.cursor.execute("SELECT '{NULL,\"NULL\",NULL,\"\"}'::text[];")
self.assertEqual(self.cursor.fetchone()[0], [None, 'NULL', None, ""])
def testNumericArrayOut(self):
self.cursor.execute("SELECT '{1.1,2.2,3.3}'::numeric[] AS f1")
self.assertEqual(
self.cursor.fetchone()[0], [
decimal.Decimal("1.1"), decimal.Decimal("2.2"),
decimal.Decimal("3.3")])
def testNumericArrayRoundtrip(self):
v = [decimal.Decimal("1.1"), None, decimal.Decimal("3.3")]
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testStringArrayRoundtrip(self):
v = [
"Hello!", "World!", "abcdefghijklmnopqrstuvwxyz", "",
"A bunch of random characters:",
" ~!@#$%^&*()_+`1234567890-=[]\\{}|{;':\",./<>?\t", None]
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testUnicodeArrayRoundtrip(self):
if PY2:
v = map(unicode, ("Second", "To", None)) # noqa
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testEmptyArray(self):
v = []
self.cursor.execute("SELECT %s as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
def testArrayContentNotSupported(self):
class Kajigger(object):
pass
self.assertRaises(
pg8000.ArrayContentNotSupportedError,
self.db.array_inspect, [[Kajigger()], [None], [None]])
self.db.rollback()
def testArrayDimensions(self):
for arr in (
[1, [2]], [[1], [2], [3, 4]],
[[[1]], [[2]], [[3, 4]]],
[[[1]], [[2]], [[3, 4]]],
[[[[1]]], [[[2]]], [[[3, 4]]]],
[[1, 2, 3], [4, [5], 6]]):
arr_send = self.db.array_inspect(arr)[2]
self.assertRaises(
pg8000.ArrayDimensionsNotConsistentError, arr_send, arr)
self.db.rollback()
def testArrayHomogenous(self):
arr = [[[1]], [[2]], [[3.1]]]
arr_send = self.db.array_inspect(arr)[2]
self.assertRaises(
pg8000.ArrayContentNotHomogenousError, arr_send, arr)
self.db.rollback()
def testArrayInspect(self):
self.db.array_inspect([1, 2, 3])
self.db.array_inspect([[1], [2], [3]])
self.db.array_inspect([[[1]], [[2]], [[3]]])
def testMacaddr(self):
self.cursor.execute("SELECT macaddr '08002b:010203'")
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], "08:00:2b:01:02:03")
def testTsvectorRoundtrip(self):
self.cursor.execute(
"SELECT cast(%s as tsvector)",
('a fat cat sat on a mat and ate a fat rat',))
retval = self.cursor.fetchall()
self.assertEqual(
retval[0][0], "'a' 'and' 'ate' 'cat' 'fat' 'mat' 'on' 'rat' 'sat'")
def testHstoreRoundtrip(self):
val = '"a"=>"1"'
self.cursor.execute("SELECT cast(%s as hstore)", (val,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], val)
def testJsonRoundtrip(self):
if self.db._server_version >= LooseVersion('9.2'):
val = {'name': 'Apollo 11 Cave', 'zebra': True, 'age': 26.003}
self.cursor.execute(
"SELECT %s", (pg8000.PGJson(val),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], val)
def testJsonbRoundtrip(self):
if self.db._server_version >= LooseVersion('9.4'):
val = {'name': 'Apollo 11 Cave', 'zebra': True, 'age': 26.003}
self.cursor.execute(
"SELECT cast(%s as jsonb)", (json.dumps(val),))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], val)
def test_json_access_object(self):
if self.db._server_version >= LooseVersion('9.4'):
val = {'name': 'Apollo 11 Cave', 'zebra': True, 'age': 26.003}
self.cursor.execute(
"SELECT cast(%s as json) -> %s", (json.dumps(val), 'name'))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 'Apollo 11 Cave')
def test_jsonb_access_object(self):
if self.db._server_version >= LooseVersion('9.4'):
val = {'name': 'Apollo 11 Cave', 'zebra': True, 'age': 26.003}
self.cursor.execute(
"SELECT cast(%s as jsonb) -> %s", (json.dumps(val), 'name'))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], 'Apollo 11 Cave')
def test_json_access_array(self):
if self.db._server_version >= LooseVersion('9.4'):
val = [-1, -2, -3, -4, -5]
self.cursor.execute(
"SELECT cast(%s as json) -> %s", (json.dumps(val), 2))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], -3)
def testJsonbAccessArray(self):
if self.db._server_version >= LooseVersion('9.4'):
val = [-1, -2, -3, -4, -5]
self.cursor.execute(
"SELECT cast(%s as jsonb) -> %s", (json.dumps(val), 2))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], -3)
def test_jsonb_access_path(self):
if self.db._server_version >= LooseVersion('9.4'):
j = {
"a": [1, 2, 3],
"b": [4, 5, 6]}
path = ['a', '2']
self.cursor.execute("SELECT %s #>> %s", [PGJsonb(j), path])
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], str(j[path[0]][int(path[1])]))
def test_timestamp_send_float(self):
assert b('A\xbe\x19\xcf\x80\x00\x00\x00') == \
pg8000.core.timestamp_send_float(
datetime.datetime(2016, 1, 2, 0, 0))
def test_infinity_timestamp_roundtrip(self):
v = 'infinity'
self.cursor.execute("SELECT cast(%s as timestamp) as f1", (v,))
retval = self.cursor.fetchall()
self.assertEqual(retval[0][0], v)
if __name__ == "__main__":
unittest.main()