-
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
test_provider_ogr.py
692 lines (568 loc) · 30.3 KB
/
test_provider_ogr.py
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
# -*- coding: utf-8 -*-
"""QGIS Unit tests for the non-shapefile, non-tabfile datasources handled by OGR provider.
.. note:: This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
"""
__author__ = 'Even Rouault'
__date__ = '2016-04-11'
__copyright__ = 'Copyright 2016, Even Rouault'
import os
import shutil
import sys
import tempfile
import hashlib
from datetime import datetime
from osgeo import gdal, ogr # NOQA
from qgis.PyQt.QtCore import QVariant, QByteArray
from qgis.core import (NULL,
QgsApplication,
QgsRectangle,
QgsProviderRegistry,
QgsFeature, QgsFeatureRequest, QgsField, QgsSettings, QgsDataProvider,
QgsVectorDataProvider, QgsVectorLayer, QgsWkbTypes, QgsNetworkAccessManager)
from qgis.testing import start_app, unittest
from utilities import unitTestDataPath
from qgis.utils import spatialite_connect
start_app()
TEST_DATA_DIR = unitTestDataPath()
def GDAL_COMPUTE_VERSION(maj, min, rev):
return ((maj) * 1000000 + (min) * 10000 + (rev) * 100)
# Note - doesn't implement ProviderTestCase as most OGR provider is tested by the shapefile provider test
def count_opened_filedescriptors(filename_to_test):
count = -1
if sys.platform.startswith('linux'):
count = 0
open_files_dirname = '/proc/%d/fd' % os.getpid()
filenames = os.listdir(open_files_dirname)
for filename in filenames:
full_filename = open_files_dirname + '/' + filename
if os.path.exists(full_filename):
link = os.readlink(full_filename)
if os.path.basename(link) == os.path.basename(filename_to_test):
count += 1
return count
class PyQgsOGRProvider(unittest.TestCase):
@classmethod
def setUpClass(cls):
"""Run before all tests"""
# Create test layer
cls.basetestpath = tempfile.mkdtemp()
cls.datasource = os.path.join(cls.basetestpath, 'test.csv')
with open(cls.datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,POINT(2 49)\n')
cls.dirs_to_cleanup = [cls.basetestpath]
@classmethod
def tearDownClass(cls):
"""Run after all tests"""
for dirname in cls.dirs_to_cleanup:
shutil.rmtree(dirname, True)
def testCapabilities(self):
self.assertTrue(QgsProviderRegistry.instance().providerCapabilities("ogr") & QgsDataProvider.File)
self.assertTrue(QgsProviderRegistry.instance().providerCapabilities("ogr") & QgsDataProvider.Dir)
def testUpdateMode(self):
vl = QgsVectorLayer('{}|layerid=0'.format(self.datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
caps = vl.dataProvider().capabilities()
self.assertTrue(caps & QgsVectorDataProvider.AddFeatures)
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
# No-op
self.assertTrue(vl.dataProvider().enterUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
# No-op
self.assertTrue(vl.dataProvider().leaveUpdateMode())
self.assertEqual(vl.dataProvider().property("_debug_open_mode"), "read-write")
def testGeometryTypeKnownAtSecondFeature(self):
datasource = os.path.join(self.basetestpath, 'testGeometryTypeKnownAtSecondFeature.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,\n')
f.write('2,POINT(2 49)\n')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), QgsWkbTypes.Point)
def testMixOfPolygonCurvePolygon(self):
datasource = os.path.join(self.basetestpath, 'testMixOfPolygonCurvePolygon.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,"POLYGON((0 0,0 1,1 1,0 0))"\n')
f.write('2,"CURVEPOLYGON((0 0,0 1,1 1,0 0))"\n')
f.write('3,"MULTIPOLYGON(((0 0,0 1,1 1,0 0)))"\n')
f.write('4,"MULTISURFACE(((0 0,0 1,1 1,0 0)))"\n')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(len(vl.dataProvider().subLayers()), 1)
self.assertEqual(vl.dataProvider().subLayers()[0], QgsDataProvider.SUBLAYER_SEPARATOR.join(['0', 'testMixOfPolygonCurvePolygon', '4', 'CurvePolygon', '', '']))
def testMixOfLineStringCompoundCurve(self):
datasource = os.path.join(self.basetestpath, 'testMixOfLineStringCompoundCurve.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,"LINESTRING(0 0,0 1)"\n')
f.write('2,"COMPOUNDCURVE((0 0,0 1))"\n')
f.write('3,"MULTILINESTRING((0 0,0 1))"\n')
f.write('4,"MULTICURVE((0 0,0 1))"\n')
f.write('5,"CIRCULARSTRING(0 0,1 1,2 0)"\n')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(len(vl.dataProvider().subLayers()), 1)
self.assertEqual(vl.dataProvider().subLayers()[0], QgsDataProvider.SUBLAYER_SEPARATOR.join(['0', 'testMixOfLineStringCompoundCurve', '5', 'CompoundCurve', '', '']))
def testGpxElevation(self):
# GPX without elevation data
datasource = os.path.join(TEST_DATA_DIR, 'noelev.gpx')
vl = QgsVectorLayer('{}|layername=routes'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
f = next(vl.getFeatures())
self.assertEqual(f.geometry().wkbType(), QgsWkbTypes.LineString)
# GPX with elevation data
datasource = os.path.join(TEST_DATA_DIR, 'elev.gpx')
vl = QgsVectorLayer('{}|layername=routes'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
f = next(vl.getFeatures())
self.assertEqual(f.geometry().wkbType(), QgsWkbTypes.LineString25D)
self.assertEqual(f.geometry().constGet().pointN(0).z(), 1)
self.assertEqual(f.geometry().constGet().pointN(1).z(), 2)
self.assertEqual(f.geometry().constGet().pointN(2).z(), 3)
def testNoDanglingFileDescriptorAfterCloseVariant1(self):
''' Test that when closing the provider all file handles are released '''
datasource = os.path.join(self.basetestpath, 'testNoDanglingFileDescriptorAfterCloseVariant1.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,\n')
f.write('2,POINT(2 49)\n')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
# The iterator will take one extra connection
myiter = vl.getFeatures()
# Consume one feature but the iterator is still opened
f = next(myiter)
self.assertTrue(f.isValid())
if sys.platform.startswith('linux'):
self.assertEqual(count_opened_filedescriptors(datasource), 2)
# Should release one file descriptor
del vl
# Non portable, but Windows testing is done with trying to unlink
if sys.platform.startswith('linux'):
self.assertEqual(count_opened_filedescriptors(datasource), 1)
f = next(myiter)
self.assertTrue(f.isValid())
# Should release one file descriptor
del myiter
# Non portable, but Windows testing is done with trying to unlink
if sys.platform.startswith('linux'):
self.assertEqual(count_opened_filedescriptors(datasource), 0)
# Check that deletion works well (can only fail on Windows)
os.unlink(datasource)
self.assertFalse(os.path.exists(datasource))
def testNoDanglingFileDescriptorAfterCloseVariant2(self):
''' Test that when closing the provider all file handles are released '''
datasource = os.path.join(self.basetestpath, 'testNoDanglingFileDescriptorAfterCloseVariant2.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,\n')
f.write('2,POINT(2 49)\n')
vl = QgsVectorLayer('{}|layerid=0'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
# Consume all features.
myiter = vl.getFeatures()
for feature in myiter:
pass
# The iterator is closed, but the corresponding connection still not closed
if sys.platform.startswith('linux'):
self.assertEqual(count_opened_filedescriptors(datasource), 2)
# Should release one file descriptor
del vl
# Non portable, but Windows testing is done with trying to unlink
if sys.platform.startswith('linux'):
self.assertEqual(count_opened_filedescriptors(datasource), 0)
# Check that deletion works well (can only fail on Windows)
os.unlink(datasource)
self.assertFalse(os.path.exists(datasource))
def testGeometryCollection(self):
''' Test that we can at least retrieves attribute of features with geometry collection '''
datasource = os.path.join(self.basetestpath, 'testGeometryCollection.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,POINT Z(2 49 0)\n')
f.write('2,GEOMETRYCOLLECTION Z (POINT Z (2 49 0))\n')
vl = QgsVectorLayer('{}|layerid=0|geometrytype=GeometryCollection'.format(datasource), 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.featureCount(), 1)
values = [f['id'] for f in vl.getFeatures()]
self.assertEqual(values, ['2'])
del vl
os.unlink(datasource)
self.assertFalse(os.path.exists(datasource))
def testGdb(self):
""" Test opening a GDB database layer"""
gdb_path = os.path.join(unitTestDataPath(), 'test_gdb.gdb')
for i in range(3):
l = QgsVectorLayer(gdb_path + '|layerid=' + str(i), 'test', 'ogr')
self.assertTrue(l.isValid())
def testGdbFilter(self):
""" Test opening a GDB database layer with filter"""
gdb_path = os.path.join(unitTestDataPath(), 'test_gdb.gdb')
l = QgsVectorLayer(gdb_path + '|layerid=1|subset="text" = \'shape 2\'', 'test', 'ogr')
self.assertTrue(l.isValid())
it = l.getFeatures()
f = QgsFeature()
while it.nextFeature(f):
self.assertTrue(f.attribute("text") == "shape 2")
def testTriangleTINPolyhedralSurface(self):
""" Test support for Triangles (mapped to Polygons) """
testsets = (
("Triangle((0 0, 0 1, 1 1, 0 0))", QgsWkbTypes.Triangle, "Triangle ((0 0, 0 1, 1 1, 0 0))"),
("Triangle Z((0 0 1, 0 1 2, 1 1 3, 0 0 1))", QgsWkbTypes.TriangleZ, "TriangleZ ((0 0 1, 0 1 2, 1 1 3, 0 0 1))"),
("Triangle M((0 0 4, 0 1 5, 1 1 6, 0 0 4))", QgsWkbTypes.TriangleM, "TriangleM ((0 0 4, 0 1 5, 1 1 6, 0 0 4))"),
("Triangle ZM((0 0 0 1, 0 1 2 3, 1 1 4 5, 0 0 0 1))", QgsWkbTypes.TriangleZM, "TriangleZM ((0 0 0 1, 0 1 2 3, 1 1 4 5, 0 0 0 1))"),
("TIN (((0 0, 0 1, 1 1, 0 0)),((0 0, 1 0, 1 1, 0 0)))", QgsWkbTypes.MultiPolygon, "MultiPolygon (((0 0, 0 1, 1 1, 0 0)),((0 0, 1 0, 1 1, 0 0)))"),
("TIN Z(((0 0 0, 0 1 1, 1 1 1, 0 0 0)),((0 0 0, 1 0 0, 1 1 1, 0 0 0)))", QgsWkbTypes.MultiPolygonZ, "MultiPolygonZ (((0 0 0, 0 1 1, 1 1 1, 0 0 0)),((0 0 0, 1 0 0, 1 1 1, 0 0 0)))"),
("TIN M(((0 0 0, 0 1 2, 1 1 3, 0 0 0)),((0 0 0, 1 0 4, 1 1 3, 0 0 0)))", QgsWkbTypes.MultiPolygonM, "MultiPolygonM (((0 0 0, 0 1 2, 1 1 3, 0 0 0)),((0 0 0, 1 0 4, 1 1 3, 0 0 0)))"),
("TIN ZM(((0 0 0 0, 0 1 1 2, 1 1 1 3, 0 0 0 0)),((0 0 0 0, 1 0 0 4, 1 1 1 3, 0 0 0 0)))", QgsWkbTypes.MultiPolygonZM, "MultiPolygonZM (((0 0 0 0, 0 1 1 2, 1 1 1 3, 0 0 0 0)),((0 0 0 0, 1 0 0 4, 1 1 1 3, 0 0 0 0)))"),
("PolyhedralSurface (((0 0, 0 1, 1 1, 0 0)),((0 0, 1 0, 1 1, 0 0)))", QgsWkbTypes.MultiPolygon, "MultiPolygon (((0 0, 0 1, 1 1, 0 0)),((0 0, 1 0, 1 1, 0 0)))"),
("PolyhedralSurface Z(((0 0 0, 0 1 1, 1 1 1, 0 0 0)),((0 0 0, 1 0 0, 1 1 1, 0 0 0)))", QgsWkbTypes.MultiPolygonZ, "MultiPolygonZ (((0 0 0, 0 1 1, 1 1 1, 0 0 0)),((0 0 0, 1 0 0, 1 1 1, 0 0 0)))"),
("PolyhedralSurface M(((0 0 0, 0 1 2, 1 1 3, 0 0 0)),((0 0 0, 1 0 4, 1 1 3, 0 0 0)))", QgsWkbTypes.MultiPolygonM, "MultiPolygonM (((0 0 0, 0 1 2, 1 1 3, 0 0 0)),((0 0 0, 1 0 4, 1 1 3, 0 0 0)))"),
("PolyhedralSurface ZM(((0 0 0 0, 0 1 1 2, 1 1 1 3, 0 0 0 0)),((0 0 0 0, 1 0 0 4, 1 1 1 3, 0 0 0 0)))", QgsWkbTypes.MultiPolygonZM, "MultiPolygonZM (((0 0 0 0, 0 1 1 2, 1 1 1 3, 0 0 0 0)),((0 0 0 0, 1 0 0 4, 1 1 1 3, 0 0 0 0)))")
)
for row in testsets:
datasource = os.path.join(self.basetestpath, 'test.csv')
with open(datasource, 'wt') as f:
f.write('id,WKT\n')
f.write('1,"%s"' % row[0])
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.wkbType(), row[1])
f = QgsFeature()
self.assertTrue(vl.getFeatures(QgsFeatureRequest(1)).nextFeature(f))
self.assertTrue(f.geometry())
self.assertEqual(f.geometry().constGet().asWkt(), row[2])
"""PolyhedralSurface, Tin => mapped to MultiPolygon
Triangle => mapped to Polygon
"""
def testSetupProxy(self):
"""Test proxy setup"""
settings = QgsSettings()
settings.setValue("proxy/proxyEnabled", True)
settings.setValue("proxy/proxyPort", '1234')
settings.setValue("proxy/proxyHost", 'myproxyhostname.com')
settings.setValue("proxy/proxyUser", 'username')
settings.setValue("proxy/proxyPassword", 'password')
settings.setValue("proxy/proxyExcludedUrls", "http://www.myhost.com|http://www.myotherhost.com")
QgsNetworkAccessManager.instance().setupDefaultProxyAndCache()
vl = QgsVectorLayer(TEST_DATA_DIR + '/' + 'lines.shp', 'proxy_test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(gdal.GetConfigOption("GDAL_HTTP_PROXY"), "myproxyhostname.com:1234")
self.assertEqual(gdal.GetConfigOption("GDAL_HTTP_PROXYUSERPWD"), "username:password")
settings.setValue("proxy/proxyEnabled", True)
settings.remove("proxy/proxyPort")
settings.setValue("proxy/proxyHost", 'myproxyhostname.com')
settings.setValue("proxy/proxyUser", 'username')
settings.remove("proxy/proxyPassword")
settings.setValue("proxy/proxyExcludedUrls", "http://www.myhost.com|http://www.myotherhost.com")
QgsNetworkAccessManager.instance().setupDefaultProxyAndCache()
vl = QgsVectorLayer(TEST_DATA_DIR + '/' + 'lines.shp', 'proxy_test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(gdal.GetConfigOption("GDAL_HTTP_PROXY"), "myproxyhostname.com")
self.assertEqual(gdal.GetConfigOption("GDAL_HTTP_PROXYUSERPWD"), "username")
def testEditGeoJsonRemoveField(self):
""" Test bugfix of https://github.com/qgis/QGIS/issues/26484 (deleting an existing field)"""
datasource = os.path.join(self.basetestpath, 'testEditGeoJsonRemoveField.json')
with open(datasource, 'wt') as f:
f.write("""{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": { "x": 1, "y": 2, "z": 3, "w": 4 }, "geometry": { "type": "Point", "coordinates": [ 0, 0 ] } } ] }""")
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.startEditing())
self.assertTrue(vl.deleteAttribute(1))
self.assertTrue(vl.commitChanges())
self.assertEqual(len(vl.dataProvider().fields()), 4 - 1)
f = QgsFeature()
self.assertTrue(vl.getFeatures(QgsFeatureRequest()).nextFeature(f))
self.assertEqual(f['x'], 1)
self.assertEqual(f['z'], 3)
self.assertEqual(f['w'], 4)
def testEditGeoJsonAddField(self):
""" Test bugfix of https://github.com/qgis/QGIS/issues/26484 (adding a new field)"""
datasource = os.path.join(self.basetestpath, 'testEditGeoJsonAddField.json')
with open(datasource, 'wt') as f:
f.write("""{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": { "x": 1 }, "geometry": { "type": "Point", "coordinates": [ 0, 0 ] } } ] }""")
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.startEditing())
self.assertTrue(vl.addAttribute(QgsField('strfield', QVariant.String)))
self.assertTrue(vl.commitChanges())
self.assertEqual(len(vl.dataProvider().fields()), 1 + 1)
f = QgsFeature()
self.assertTrue(vl.getFeatures(QgsFeatureRequest()).nextFeature(f))
self.assertIsNone(f['strfield'])
# Completely reload file
vl = QgsVectorLayer(datasource, 'test', 'ogr')
# As we didn't set any value to the new field, it is not written at
# all in the GeoJSON file, so it has disappeared
self.assertEqual(len(vl.fields()), 1)
def testEditGeoJsonAddFieldAndThenAddFeatures(self):
""" Test bugfix of https://github.com/qgis/QGIS/issues/26484 (adding a new field)"""
datasource = os.path.join(self.basetestpath, 'testEditGeoJsonAddField.json')
with open(datasource, 'wt') as f:
f.write("""{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": { "x": 1 }, "geometry": { "type": "Point", "coordinates": [ 0, 0 ] } } ] }""")
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertTrue(vl.startEditing())
self.assertTrue(vl.addAttribute(QgsField('strfield', QVariant.String)))
self.assertTrue(vl.commitChanges())
self.assertEqual(len(vl.dataProvider().fields()), 1 + 1)
self.assertEqual([f.name() for f in vl.dataProvider().fields()], ['x', 'strfield'])
f = QgsFeature()
self.assertTrue(vl.getFeatures(QgsFeatureRequest()).nextFeature(f))
self.assertIsNone(f['strfield'])
self.assertEqual([field.name() for field in f.fields()], ['x', 'strfield'])
self.assertTrue(vl.startEditing())
vl.changeAttributeValue(f.id(), 1, 'x')
self.assertTrue(vl.commitChanges())
f = QgsFeature()
self.assertTrue(vl.getFeatures(QgsFeatureRequest()).nextFeature(f))
self.assertEqual(f['strfield'], 'x')
self.assertEqual([field.name() for field in f.fields()], ['x', 'strfield'])
# Completely reload file
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertEqual(len(vl.fields()), 2)
def testDataItems(self):
registry = QgsApplication.dataItemProviderRegistry()
ogrprovider = next(provider for provider in registry.providers() if provider.name() == 'OGR')
# Single layer
item = ogrprovider.createDataItem(os.path.join(TEST_DATA_DIR, 'lines.shp'), None)
self.assertTrue(item.uri().endswith('lines.shp'))
# Multiple layer
item = ogrprovider.createDataItem(os.path.join(TEST_DATA_DIR, 'multilayer.kml'), None)
children = item.createChildren()
self.assertEqual(len(children), 2)
self.assertIn('multilayer.kml|layername=Layer1', children[0].uri())
self.assertIn('multilayer.kml|layername=Layer2', children[1].uri())
# Multiple layer (geopackage)
tmpfile = os.path.join(self.basetestpath, 'testDataItems.gpkg')
ds = ogr.GetDriverByName('GPKG').CreateDataSource(tmpfile)
lyr = ds.CreateLayer('Layer1', geom_type=ogr.wkbPoint)
lyr = ds.CreateLayer('Layer2', geom_type=ogr.wkbPoint)
ds = None
item = ogrprovider.createDataItem(tmpfile, None)
children = item.createChildren()
self.assertEqual(len(children), 2)
self.assertIn('testDataItems.gpkg|layername=Layer1', children[0].uri())
self.assertIn('testDataItems.gpkg|layername=Layer2', children[1].uri())
def testOSM(self):
""" Test that opening several layers of the same OSM datasource works properly """
datasource = os.path.join(TEST_DATA_DIR, 'test.osm')
vl_points = QgsVectorLayer(datasource + "|layername=points", 'test', 'ogr')
vl_multipolygons = QgsVectorLayer(datasource + "|layername=multipolygons", 'test', 'ogr')
f = QgsFeature()
# When sharing the same dataset handle, the spatial filter of test
# points layer would apply to the other layers
iter_points = vl_points.getFeatures(QgsFeatureRequest().setFilterRect(QgsRectangle(-200, -200, -200, -200)))
self.assertFalse(iter_points.nextFeature(f))
iter_multipolygons = vl_multipolygons.getFeatures(QgsFeatureRequest())
self.assertTrue(iter_multipolygons.nextFeature(f))
self.assertTrue(iter_multipolygons.nextFeature(f))
self.assertTrue(iter_multipolygons.nextFeature(f))
self.assertFalse(iter_multipolygons.nextFeature(f))
# Re-start an iterator (tests #20098)
iter_multipolygons = vl_multipolygons.getFeatures(QgsFeatureRequest())
self.assertTrue(iter_multipolygons.nextFeature(f))
# Test filter by id (#20308)
f = next(vl_multipolygons.getFeatures(QgsFeatureRequest().setFilterFid(8)))
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 8)
f = next(vl_multipolygons.getFeatures(QgsFeatureRequest().setFilterFid(1)))
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 1)
f = next(vl_multipolygons.getFeatures(QgsFeatureRequest().setFilterFid(5)))
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 5)
# 6 doesn't exist
it = vl_multipolygons.getFeatures(QgsFeatureRequest().setFilterFids([1, 5, 6, 8]))
f = next(it)
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 1)
f = next(it)
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 5)
f = next(it)
self.assertTrue(f.isValid())
self.assertEqual(f.id(), 8)
del it
def testBinaryField(self):
source = os.path.join(TEST_DATA_DIR, 'attachments.gdb')
vl = QgsVectorLayer(source + "|layername=points__ATTACH")
self.assertTrue(vl.isValid())
fields = vl.fields()
data_field = fields[fields.lookupField('DATA')]
self.assertEqual(data_field.type(), QVariant.ByteArray)
self.assertEqual(data_field.typeName(), 'Binary')
features = {f['ATTACHMENTID']: f for f in vl.getFeatures()}
self.assertEqual(len(features), 2)
self.assertIsInstance(features[1]['DATA'], QByteArray)
self.assertEqual(hashlib.md5(features[1]['DATA'].data()).hexdigest(), 'ef3dbc530cc39a545832a6c82aac57b6')
self.assertIsInstance(features[2]['DATA'], QByteArray)
self.assertEqual(hashlib.md5(features[2]['DATA'].data()).hexdigest(), '4b952b80e4288ca5111be2f6dd5d6809')
@unittest.skip(int(gdal.VersionInfo('VERSION_NUM')) < GDAL_COMPUTE_VERSION(2, 4, 0))
def testStringListField(self):
source = os.path.join(TEST_DATA_DIR, 'stringlist.gml')
vl = QgsVectorLayer(source)
self.assertTrue(vl.isValid())
fields = vl.fields()
descriptive_group_field = fields[fields.lookupField('descriptiveGroup')]
self.assertEqual(descriptive_group_field.type(), QVariant.List)
self.assertEqual(descriptive_group_field.typeName(), 'StringList')
self.assertEqual(descriptive_group_field.subType(), QVariant.String)
feature = vl.getFeature(1000002717654)
self.assertEqual(feature['descriptiveGroup'], ['Building'])
self.assertEqual(feature['reasonForChange'], ['Reclassified', 'Attributes'])
tmpfile = os.path.join(self.basetestpath, 'newstringlistfield.gml')
ds = ogr.GetDriverByName('GML').CreateDataSource(tmpfile)
lyr = ds.CreateLayer('test', geom_type=ogr.wkbPoint)
lyr.CreateField(ogr.FieldDefn('strfield', ogr.OFTString))
lyr.CreateField(ogr.FieldDefn('intfield', ogr.OFTInteger))
lyr.CreateField(ogr.FieldDefn('strlistfield', ogr.OFTStringList))
ds = None
vl = QgsVectorLayer(tmpfile)
self.assertTrue(vl.isValid())
dp = vl.dataProvider()
fields = dp.fields()
list_field = fields[fields.lookupField('strlistfield')]
self.assertEqual(list_field.type(), QVariant.List)
self.assertEqual(list_field.typeName(), 'StringList')
self.assertEqual(list_field.subType(), QVariant.String)
def testBlobCreation(self):
"""
Test creating binary blob field in existing table
"""
tmpfile = os.path.join(self.basetestpath, 'newbinaryfield.sqlite')
ds = ogr.GetDriverByName('SQLite').CreateDataSource(tmpfile)
lyr = ds.CreateLayer('test', geom_type=ogr.wkbPoint, options=['FID=fid'])
lyr.CreateField(ogr.FieldDefn('strfield', ogr.OFTString))
lyr.CreateField(ogr.FieldDefn('intfield', ogr.OFTInteger))
f = None
ds = None
vl = QgsVectorLayer(tmpfile)
self.assertTrue(vl.isValid())
dp = vl.dataProvider()
f = QgsFeature(dp.fields())
f.setAttributes([1, 'str', 100])
self.assertTrue(dp.addFeature(f))
# add binary field
self.assertTrue(dp.addAttributes([QgsField('binfield', QVariant.ByteArray)]))
fields = dp.fields()
bin1_field = fields[fields.lookupField('binfield')]
self.assertEqual(bin1_field.type(), QVariant.ByteArray)
self.assertEqual(bin1_field.typeName(), 'Binary')
f = QgsFeature(fields)
bin_1 = b'xxx'
bin_val1 = QByteArray(bin_1)
f.setAttributes([2, 'str2', 200, bin_val1])
self.assertTrue(dp.addFeature(f))
f2 = [f for f in dp.getFeatures()][1]
self.assertEqual(f2.attributes(), [2, 'str2', 200, QByteArray(bin_1)])
def testBoolFieldEvaluation(self):
datasource = os.path.join(unitTestDataPath(), 'bool_geojson.json')
vl = QgsVectorLayer(datasource, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.fields().at(0).name(), 'bool')
self.assertEqual(vl.fields().at(0).type(), QVariant.Bool)
self.assertEqual([f[0] for f in vl.getFeatures()], [True, False, NULL])
self.assertEqual([f[0].__class__.__name__ for f in vl.getFeatures()], ['bool', 'bool', 'QVariant'])
def testReloadDataAndFeatureCount(self):
filename = '/vsimem/test.json'
gdal.FileFromMemBuffer(filename, """{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": null, "geometry": { "type": "Point", "coordinates": [2, 49] } },
{ "type": "Feature", "properties": null, "geometry": { "type": "Point", "coordinates": [3, 50] } }
]
}""")
vl = QgsVectorLayer(filename, 'test', 'ogr')
self.assertTrue(vl.isValid())
self.assertEqual(vl.featureCount(), 2)
gdal.FileFromMemBuffer(filename, """{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": null, "geometry": { "type": "Point", "coordinates": [2, 49] } }
]
}""")
vl.reload()
self.assertEqual(vl.featureCount(), 1)
gdal.Unlink(filename)
def testSpatialiteDefaultValues(self):
"""Test whether in spatialite table with default values like CURRENT_TIMESTAMP or
(datetime('now','localtime')) they are respected. See GH #33383"""
# Create the test table
dbname = os.path.join(tempfile.gettempdir(), "test.sqlite")
if os.path.exists(dbname):
os.remove(dbname)
con = spatialite_connect(dbname, isolation_level=None)
cur = con.cursor()
cur.execute("BEGIN")
sql = "SELECT InitSpatialMetadata()"
cur.execute(sql)
# simple table with primary key
sql = """
CREATE TABLE test_table_default_values (
id integer primary key autoincrement,
comment TEXT,
created_at_01 text DEFAULT (datetime('now','localtime')),
created_at_02 text DEFAULT CURRENT_TIMESTAMP,
anumber INTEGER DEFAULT 123,
atext TEXT default 'My default'
)
"""
cur.execute(sql)
cur.execute("COMMIT")
con.close()
vl = QgsVectorLayer(dbname + '|layername=test_table_default_values', 'test_table_default_values', 'ogr')
self.assertTrue(vl.isValid())
# Save it for the test
now = datetime.now()
# Test default values
dp = vl.dataProvider()
#FIXME: should it be None?
self.assertTrue(dp.defaultValue(0).isNull())
self.assertIsNone(dp.defaultValue(1))
#FIXME: This fails because there is no backend-side evaluation in this provider
#self.assertTrue(dp.defaultValue(2).startswith(now.strftime('%Y-%m-%d')))
self.assertTrue(dp.defaultValue(3).startswith(now.strftime('%Y-%m-%d')))
self.assertEqual(dp.defaultValue(4), 123)
self.assertEqual(dp.defaultValue(5), 'My default')
self.assertEqual(dp.defaultValueClause(0), 'Autogenerate')
self.assertEqual(dp.defaultValueClause(1), '')
self.assertEqual(dp.defaultValueClause(2), "datetime('now','localtime')")
self.assertEqual(dp.defaultValueClause(3), "CURRENT_TIMESTAMP")
#FIXME: ogr provider simply returns values when asked for clauses
#self.assertEqual(dp.defaultValueClause(4), '')
#self.assertEqual(dp.defaultValueClause(5), '')
feature = QgsFeature(vl.fields())
for idx in range(vl.fields().count()):
default = vl.dataProvider().defaultValue(idx)
if not default:
feature.setAttribute(idx, 'A comment')
else:
feature.setAttribute(idx, default)
self.assertTrue(vl.dataProvider().addFeature(feature))
del(vl)
# Verify
vl2 = QgsVectorLayer(dbname + '|layername=test_table_default_values', 'test_table_default_values', 'ogr')
self.assertTrue(vl2.isValid())
feature = next(vl2.getFeatures())
self.assertEqual(feature.attribute(1), 'A comment')
self.assertTrue(feature.attribute(2).startswith(now.strftime('%Y-%m-%d')))
self.assertTrue(feature.attribute(3).startswith(now.strftime('%Y-%m-%d')))
self.assertEqual(feature.attribute(4), 123)
self.assertEqual(feature.attribute(5), 'My default')
if __name__ == '__main__':
unittest.main()