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| 1 | +# -*- coding: utf-8 -*- |
| 2 | +"""QGIS Unit tests for QgsVectorLayerEditBuffer. |
| 3 | +
|
| 4 | +.. note:: This program is free software; you can redistribute it and/or modify |
| 5 | +it under the terms of the GNU General Public License as published by |
| 6 | +the Free Software Foundation; either version 2 of the License, or |
| 7 | +(at your option) any later version. |
| 8 | +""" |
| 9 | +__author__ = 'Nyall Dawson' |
| 10 | +__date__ = '15/07/2016' |
| 11 | +__copyright__ = 'Copyright 2016, The QGIS Project' |
| 12 | +# This will get replaced with a git SHA1 when you do a git archive |
| 13 | +__revision__ = '$Format:%H$' |
| 14 | + |
| 15 | +import qgis # NOQA |
| 16 | + |
| 17 | +import os |
| 18 | + |
| 19 | +from qgis.PyQt.QtCore import QVariant |
| 20 | +from qgis.PyQt.QtGui import QPainter |
| 21 | + |
| 22 | +from qgis.core import (QGis, |
| 23 | + QgsVectorLayer, |
| 24 | + QgsRectangle, |
| 25 | + QgsFeature, |
| 26 | + QgsFeatureRequest, |
| 27 | + QgsGeometry, |
| 28 | + QgsPoint, |
| 29 | + QgsField, |
| 30 | + QgsFields, |
| 31 | + QgsMapLayerRegistry, |
| 32 | + QgsVectorJoinInfo, |
| 33 | + QgsSymbolV2, |
| 34 | + QgsSingleSymbolRendererV2, |
| 35 | + QgsCoordinateReferenceSystem, |
| 36 | + QgsProject, |
| 37 | + QgsUnitTypes, |
| 38 | + QgsAggregateCalculator) |
| 39 | +from qgis.testing import start_app, unittest |
| 40 | +from utilities import unitTestDataPath |
| 41 | +start_app() |
| 42 | + |
| 43 | + |
| 44 | +def createEmptyLayer(): |
| 45 | + layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer", |
| 46 | + "addfeat", "memory") |
| 47 | + assert layer.isValid() |
| 48 | + return layer |
| 49 | + |
| 50 | + |
| 51 | +def createLayerWithOnePoint(): |
| 52 | + layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer", |
| 53 | + "addfeat", "memory") |
| 54 | + pr = layer.dataProvider() |
| 55 | + f = QgsFeature() |
| 56 | + f.setAttributes(["test", 123]) |
| 57 | + f.setGeometry(QgsGeometry.fromPoint(QgsPoint(100, 200))) |
| 58 | + assert pr.addFeatures([f]) |
| 59 | + assert layer.pendingFeatureCount() == 1 |
| 60 | + return layer |
| 61 | + |
| 62 | + |
| 63 | +class TestQgsVectorLayerEditBuffer(unittest.TestCase): |
| 64 | + |
| 65 | + def testAddFeatures(self): |
| 66 | + # test adding features to an edit buffer |
| 67 | + layer = createEmptyLayer() |
| 68 | + self.assertTrue(layer.startEditing()) |
| 69 | + |
| 70 | + self.assertEqual(layer.editBuffer().addedFeatures(), {}) |
| 71 | + self.assertFalse(layer.editBuffer().isFeatureAdded(1)) |
| 72 | + self.assertFalse(layer.editBuffer().isFeatureAdded(3)) |
| 73 | + |
| 74 | + # add two features |
| 75 | + f1 = QgsFeature(layer.fields(), 1) |
| 76 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 77 | + f1.setAttributes(["test", 123]) |
| 78 | + self.assertTrue(layer.addFeature(f1)) |
| 79 | + |
| 80 | + f2 = QgsFeature(layer.fields(), 2) |
| 81 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 82 | + f2.setAttributes(["test2", 246]) |
| 83 | + |
| 84 | + self.assertTrue(layer.addFeature(f2)) |
| 85 | + |
| 86 | + # test contents of buffer |
| 87 | + added = layer.editBuffer().addedFeatures() |
| 88 | + new_feature_ids = added.keys() |
| 89 | + self.assertEqual(added[new_feature_ids[0]]['fldtxt'], 'test2') |
| 90 | + self.assertEqual(added[new_feature_ids[0]]['fldint'], 246) |
| 91 | + self.assertEqual(added[new_feature_ids[1]]['fldtxt'], 'test') |
| 92 | + self.assertEqual(added[new_feature_ids[1]]['fldint'], 123) |
| 93 | + |
| 94 | + self.assertTrue(layer.editBuffer().isFeatureAdded(new_feature_ids[0])) |
| 95 | + self.assertTrue(layer.editBuffer().isFeatureAdded(new_feature_ids[1])) |
| 96 | + |
| 97 | + def testAddMultipleFeatures(self): |
| 98 | + # test adding multiple features to an edit buffer |
| 99 | + layer = createEmptyLayer() |
| 100 | + self.assertTrue(layer.startEditing()) |
| 101 | + |
| 102 | + self.assertEqual(layer.editBuffer().addedFeatures(), {}) |
| 103 | + self.assertFalse(layer.editBuffer().isFeatureAdded(1)) |
| 104 | + self.assertFalse(layer.editBuffer().isFeatureAdded(3)) |
| 105 | + |
| 106 | + # add two features |
| 107 | + f1 = QgsFeature(layer.fields(), 1) |
| 108 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 109 | + f1.setAttributes(["test", 123]) |
| 110 | + f2 = QgsFeature(layer.fields(), 2) |
| 111 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 112 | + f2.setAttributes(["test2", 246]) |
| 113 | + |
| 114 | + self.assertTrue(layer.addFeatures([f1, f2])) |
| 115 | + |
| 116 | + # test contents of buffer |
| 117 | + added = layer.editBuffer().addedFeatures() |
| 118 | + new_feature_ids = added.keys() |
| 119 | + self.assertEqual(added[new_feature_ids[0]]['fldtxt'], 'test2') |
| 120 | + self.assertEqual(added[new_feature_ids[0]]['fldint'], 246) |
| 121 | + self.assertEqual(added[new_feature_ids[1]]['fldtxt'], 'test') |
| 122 | + self.assertEqual(added[new_feature_ids[1]]['fldint'], 123) |
| 123 | + |
| 124 | + self.assertTrue(layer.editBuffer().isFeatureAdded(new_feature_ids[0])) |
| 125 | + self.assertTrue(layer.editBuffer().isFeatureAdded(new_feature_ids[1])) |
| 126 | + |
| 127 | + def testDeleteFeatures(self): |
| 128 | + # test deleting features from an edit buffer |
| 129 | + |
| 130 | + # make a layer with two features |
| 131 | + layer = createEmptyLayer() |
| 132 | + self.assertTrue(layer.startEditing()) |
| 133 | + |
| 134 | + # add two features |
| 135 | + f1 = QgsFeature(layer.fields(), 1) |
| 136 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 137 | + f1.setAttributes(["test", 123]) |
| 138 | + self.assertTrue(layer.addFeature(f1)) |
| 139 | + |
| 140 | + f2 = QgsFeature(layer.fields(), 2) |
| 141 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 142 | + f2.setAttributes(["test2", 246]) |
| 143 | + self.assertTrue(layer.addFeature(f2)) |
| 144 | + |
| 145 | + layer.commitChanges() |
| 146 | + layer.startEditing() |
| 147 | + |
| 148 | + self.assertEqual(layer.editBuffer().deletedFeatureIds(), []) |
| 149 | + self.assertFalse(layer.editBuffer().isFeatureDeleted(1)) |
| 150 | + self.assertFalse(layer.editBuffer().isFeatureDeleted(2)) |
| 151 | + |
| 152 | + # delete a feature |
| 153 | + layer.deleteFeature(1) |
| 154 | + |
| 155 | + # test contents of buffer |
| 156 | + self.assertEqual(layer.editBuffer().deletedFeatureIds(), [1]) |
| 157 | + self.assertTrue(layer.editBuffer().isFeatureDeleted(1)) |
| 158 | + self.assertFalse(layer.editBuffer().isFeatureDeleted(2)) |
| 159 | + |
| 160 | + # delete a feature |
| 161 | + layer.deleteFeature(2) |
| 162 | + |
| 163 | + # test contents of buffer |
| 164 | + self.assertEqual(layer.editBuffer().deletedFeatureIds(), [1, 2]) |
| 165 | + self.assertTrue(layer.editBuffer().isFeatureDeleted(1)) |
| 166 | + self.assertTrue(layer.editBuffer().isFeatureDeleted(2)) |
| 167 | + |
| 168 | + def testDeleteMultipleFeatures(self): |
| 169 | + # test deleting multiple features from an edit buffer |
| 170 | + |
| 171 | + # make a layer with two features |
| 172 | + layer = createEmptyLayer() |
| 173 | + self.assertTrue(layer.startEditing()) |
| 174 | + |
| 175 | + # add two features |
| 176 | + f1 = QgsFeature(layer.fields(), 1) |
| 177 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 178 | + f1.setAttributes(["test", 123]) |
| 179 | + self.assertTrue(layer.addFeature(f1)) |
| 180 | + |
| 181 | + f2 = QgsFeature(layer.fields(), 2) |
| 182 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 183 | + f2.setAttributes(["test2", 246]) |
| 184 | + self.assertTrue(layer.addFeature(f2)) |
| 185 | + |
| 186 | + layer.commitChanges() |
| 187 | + layer.startEditing() |
| 188 | + |
| 189 | + self.assertEqual(layer.editBuffer().deletedFeatureIds(), []) |
| 190 | + self.assertFalse(layer.editBuffer().isFeatureDeleted(1)) |
| 191 | + self.assertFalse(layer.editBuffer().isFeatureDeleted(2)) |
| 192 | + |
| 193 | + # delete features |
| 194 | + layer.deleteFeatures([1, 2]) |
| 195 | + |
| 196 | + # test contents of buffer |
| 197 | + self.assertEqual(layer.editBuffer().deletedFeatureIds(), [1, 2]) |
| 198 | + self.assertTrue(layer.editBuffer().isFeatureDeleted(1)) |
| 199 | + self.assertTrue(layer.editBuffer().isFeatureDeleted(2)) |
| 200 | + |
| 201 | + def testChangeAttributeValues(self): |
| 202 | + # test changing attributes values from an edit buffer |
| 203 | + |
| 204 | + # make a layer with two features |
| 205 | + layer = createEmptyLayer() |
| 206 | + self.assertTrue(layer.startEditing()) |
| 207 | + |
| 208 | + # add two features |
| 209 | + f1 = QgsFeature(layer.fields(), 1) |
| 210 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 211 | + f1.setAttributes(["test", 123]) |
| 212 | + self.assertTrue(layer.addFeature(f1)) |
| 213 | + |
| 214 | + f2 = QgsFeature(layer.fields(), 2) |
| 215 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 216 | + f2.setAttributes(["test2", 246]) |
| 217 | + self.assertTrue(layer.addFeature(f2)) |
| 218 | + |
| 219 | + layer.commitChanges() |
| 220 | + layer.startEditing() |
| 221 | + |
| 222 | + self.assertEqual(layer.editBuffer().changedAttributeValues(), {}) |
| 223 | + self.assertFalse(layer.editBuffer().isFeatureAttributesChanged(1)) |
| 224 | + self.assertFalse(layer.editBuffer().isFeatureAttributesChanged(2)) |
| 225 | + |
| 226 | + # change attribute values |
| 227 | + layer.changeAttributeValue(1, 0, 'a') |
| 228 | + |
| 229 | + # test contents of buffer |
| 230 | + self.assertEqual(layer.editBuffer().changedAttributeValues().keys(), [1]) |
| 231 | + self.assertEqual(layer.editBuffer().changedAttributeValues()[1], {0: 'a'}) |
| 232 | + self.assertTrue(layer.editBuffer().isFeatureAttributesChanged(1)) |
| 233 | + self.assertFalse(layer.editBuffer().isFeatureAttributesChanged(2)) |
| 234 | + |
| 235 | + layer.changeAttributeValue(2, 1, 5) |
| 236 | + |
| 237 | + # test contents of buffer |
| 238 | + self.assertEqual(set(layer.editBuffer().changedAttributeValues().keys()), set([1, 2])) |
| 239 | + self.assertEqual(layer.editBuffer().changedAttributeValues()[1], {0: 'a'}) |
| 240 | + self.assertEqual(layer.editBuffer().changedAttributeValues()[2], {1: 5}) |
| 241 | + self.assertTrue(layer.editBuffer().isFeatureAttributesChanged(1)) |
| 242 | + self.assertTrue(layer.editBuffer().isFeatureAttributesChanged(2)) |
| 243 | + |
| 244 | + def testChangeGeometry(self): |
| 245 | + # test changing geometries values from an edit buffer |
| 246 | + |
| 247 | + # make a layer with two features |
| 248 | + layer = createEmptyLayer() |
| 249 | + self.assertTrue(layer.startEditing()) |
| 250 | + |
| 251 | + # add two features |
| 252 | + f1 = QgsFeature(layer.fields(), 1) |
| 253 | + f1.setGeometry(QgsGeometry.fromPoint(QgsPoint(1, 2))) |
| 254 | + f1.setAttributes(["test", 123]) |
| 255 | + self.assertTrue(layer.addFeature(f1)) |
| 256 | + |
| 257 | + f2 = QgsFeature(layer.fields(), 2) |
| 258 | + f2.setGeometry(QgsGeometry.fromPoint(QgsPoint(2, 4))) |
| 259 | + f2.setAttributes(["test2", 246]) |
| 260 | + self.assertTrue(layer.addFeature(f2)) |
| 261 | + |
| 262 | + layer.commitChanges() |
| 263 | + layer.startEditing() |
| 264 | + |
| 265 | + self.assertEqual(layer.editBuffer().changedGeometries(), {}) |
| 266 | + self.assertFalse(layer.editBuffer().isFeatureGeometryChanged(1)) |
| 267 | + self.assertFalse(layer.editBuffer().isFeatureGeometryChanged(2)) |
| 268 | + |
| 269 | + # change attribute values |
| 270 | + layer.changeGeometry(1, QgsGeometry.fromPoint(QgsPoint(10, 20))) |
| 271 | + |
| 272 | + # test contents of buffer |
| 273 | + self.assertEqual(layer.editBuffer().changedGeometries().keys(), [1]) |
| 274 | + self.assertEqual(layer.editBuffer().changedGeometries()[1].geometry().x(), 10) |
| 275 | + self.assertTrue(layer.editBuffer().isFeatureGeometryChanged(1)) |
| 276 | + self.assertFalse(layer.editBuffer().isFeatureGeometryChanged(2)) |
| 277 | + |
| 278 | + layer.changeGeometry(2, QgsGeometry.fromPoint(QgsPoint(20, 40))) |
| 279 | + |
| 280 | + # test contents of buffer |
| 281 | + self.assertEqual(set(layer.editBuffer().changedGeometries().keys()), set([1, 2])) |
| 282 | + self.assertEqual(layer.editBuffer().changedGeometries()[1].geometry().x(), 10) |
| 283 | + self.assertEqual(layer.editBuffer().changedGeometries()[2].geometry().x(), 20) |
| 284 | + self.assertTrue(layer.editBuffer().isFeatureGeometryChanged(1)) |
| 285 | + self.assertTrue(layer.editBuffer().isFeatureGeometryChanged(2)) |
| 286 | + |
| 287 | + def testDeleteAttribute(self): |
| 288 | + # test deleting attributes from an edit buffer |
| 289 | + |
| 290 | + layer = createEmptyLayer() |
| 291 | + layer.startEditing() |
| 292 | + |
| 293 | + self.assertEqual(layer.editBuffer().deletedAttributeIds(), []) |
| 294 | + self.assertFalse(layer.editBuffer().isAttributeDeleted(0)) |
| 295 | + self.assertFalse(layer.editBuffer().isAttributeDeleted(1)) |
| 296 | + |
| 297 | + # delete attribute |
| 298 | + layer.deleteAttribute(0) |
| 299 | + |
| 300 | + # test contents of buffer |
| 301 | + self.assertEqual(layer.editBuffer().deletedAttributeIds(), [0]) |
| 302 | + self.assertTrue(layer.editBuffer().isAttributeDeleted(0)) |
| 303 | + self.assertFalse(layer.editBuffer().isAttributeDeleted(1)) |
| 304 | + |
| 305 | + # delete remaining attribute (now at position 0) |
| 306 | + layer.deleteAttribute(0) |
| 307 | + |
| 308 | + # test contents of buffer |
| 309 | + self.assertEqual(layer.editBuffer().deletedAttributeIds(), [0, 1]) |
| 310 | + self.assertTrue(layer.editBuffer().isAttributeDeleted(0)) |
| 311 | + self.assertTrue(layer.editBuffer().isAttributeDeleted(1)) |
| 312 | + |
| 313 | + def testAddAttribute(self): |
| 314 | + # test adding attributes to an edit buffer |
| 315 | + |
| 316 | + layer = createEmptyLayer() |
| 317 | + layer.startEditing() |
| 318 | + |
| 319 | + self.assertEqual(layer.editBuffer().addedAttributes(), []) |
| 320 | + |
| 321 | + # add attribute |
| 322 | + layer.addAttribute(QgsField('new1', QVariant.String)) |
| 323 | + |
| 324 | + # test contents of buffer |
| 325 | + self.assertEqual(layer.editBuffer().addedAttributes()[0].name(), 'new1') |
| 326 | + |
| 327 | + # add another attribute |
| 328 | + layer.addAttribute(QgsField('new2', QVariant.String)) |
| 329 | + |
| 330 | + # test contents of buffer |
| 331 | + self.assertEqual(layer.editBuffer().addedAttributes()[0].name(), 'new1') |
| 332 | + self.assertEqual(layer.editBuffer().addedAttributes()[1].name(), 'new2') |
| 333 | + |
| 334 | +if __name__ == '__main__': |
| 335 | + unittest.main() |
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