|
| 1 | +# -*- coding: utf-8 -*- |
| 2 | +""" |
| 3 | +Tests for WFS-T provider using QGIS Server through qgis_wrapped_server.py. |
| 4 | +
|
| 5 | +This is an integration test for QGIS Desktop WFS-T provider and QGIS Server |
| 6 | +WFS-T that check if QGIS can talk to and uderstand itself. |
| 7 | +
|
| 8 | +The test uses testdata/wfs_transactional/wfs_transactional.qgs and three |
| 9 | +initially empty shapefiles layrs with points, lines and polygons. |
| 10 | +
|
| 11 | +All WFS-T calls are executed through the QGIS WFS data provider. |
| 12 | +
|
| 13 | +The three layers are |
| 14 | +
|
| 15 | +1. populated with WFS-T |
| 16 | +2. checked for geometry and attributes |
| 17 | +3. modified with WFS-T |
| 18 | +4. checked for geometry and attributes |
| 19 | +5. emptied with WFS-T calls to delete |
| 20 | +
|
| 21 | +
|
| 22 | +From build dir, run: ctest -R PyQgsServerWFST -V |
| 23 | +
|
| 24 | +.. note:: This program is free software; you can redistribute it and/or modify |
| 25 | +it under the terms of the GNU General Public License as published by |
| 26 | +the Free Software Foundation; either version 2 of the License, or |
| 27 | +(at your option) any later version. |
| 28 | +""" |
| 29 | + |
| 30 | +__author__ = 'Alessandro Pasotti' |
| 31 | +__date__ = '05/15/2016' |
| 32 | +__copyright__ = 'Copyright 2016, The QGIS Project' |
| 33 | +# This will get replaced with a git SHA1 when you do a git archive |
| 34 | +__revision__ = '$Format:%H$' |
| 35 | + |
| 36 | + |
| 37 | +import os |
| 38 | +import subprocess |
| 39 | +from shutil import copytree, rmtree |
| 40 | +import tempfile |
| 41 | +from time import sleep |
| 42 | +from utilities import unitTestDataPath |
| 43 | +from qgis.core import ( |
| 44 | + QgsVectorLayer, |
| 45 | + QgsFeature, |
| 46 | + QgsGeometry, |
| 47 | + QgsPoint, |
| 48 | + QgsRectangle, |
| 49 | + QgsFeatureRequest, |
| 50 | + QgsExpression, |
| 51 | +) |
| 52 | +from qgis.testing import ( |
| 53 | + start_app, |
| 54 | + unittest, |
| 55 | +) |
| 56 | + |
| 57 | +try: |
| 58 | + QGIS_SERVER_WFST_DEFAULT_PORT = os.environ['QGIS_SERVER_WFST_DEFAULT_PORT'] |
| 59 | +except: |
| 60 | + QGIS_SERVER_WFST_DEFAULT_PORT = 8081 |
| 61 | + |
| 62 | + |
| 63 | +qgis_app = start_app() |
| 64 | + |
| 65 | + |
| 66 | +class TestWFST(unittest.TestCase): |
| 67 | + |
| 68 | + @classmethod |
| 69 | + def setUpClass(cls): |
| 70 | + """Run before all tests""" |
| 71 | + cls.port = QGIS_SERVER_WFST_DEFAULT_PORT |
| 72 | + cls.testdata_path = unitTestDataPath('wfs_transactional') + '/' |
| 73 | + # Create tmp folder |
| 74 | + cls.temp_path = tempfile.mkdtemp() |
| 75 | + cls.testdata_path = cls.temp_path + '/' + 'wfs_transactional' + '/' |
| 76 | + copytree(unitTestDataPath('wfs_transactional') + '/', |
| 77 | + cls.temp_path + '/' + 'wfs_transactional') |
| 78 | + cls.project_path = cls.temp_path + '/' + 'wfs_transactional' + '/' + \ |
| 79 | + 'wfs_transactional.qgs' |
| 80 | + assert os.path.exists(cls.project_path), "Project not found: %s" % \ |
| 81 | + cls.project_path |
| 82 | + # Clean env just to be sure |
| 83 | + env_vars = ['QUERY_STRING', 'QGIS_PROJECT_FILE'] |
| 84 | + for ev in env_vars: |
| 85 | + try: |
| 86 | + del os.environ[ev] |
| 87 | + except KeyError: |
| 88 | + pass |
| 89 | + # Clear all test layers |
| 90 | + for ln in ['test_point', 'test_polygon', 'test_linestring']: |
| 91 | + cls._clearLayer(ln) |
| 92 | + os.environ['QGIS_SERVER_DEFAULT_PORT'] = str(cls.port) |
| 93 | + server_path = os.path.dirname(os.path.realpath(__file__)) + \ |
| 94 | + '/qgis_wrapped_server.py' |
| 95 | + cls.server = subprocess.Popen(['python', server_path], |
| 96 | + env=os.environ) |
| 97 | + sleep(2) |
| 98 | + |
| 99 | + @classmethod |
| 100 | + def tearDownClass(cls): |
| 101 | + """Run after all tests""" |
| 102 | + cls.server.terminate() |
| 103 | + del cls.server |
| 104 | + # Clear all test layers |
| 105 | + for ln in ['test_point', 'test_polygon', 'test_linestring']: |
| 106 | + layer = cls._getLayer(ln) |
| 107 | + cls._clearLayer(ln) |
| 108 | + rmtree(cls.temp_path) |
| 109 | + |
| 110 | + def setUp(self): |
| 111 | + """Run before each test.""" |
| 112 | + pass |
| 113 | + |
| 114 | + def tearDown(self): |
| 115 | + """Run after each test.""" |
| 116 | + pass |
| 117 | + |
| 118 | + @classmethod |
| 119 | + def _clearLayer(cls, layer_name): |
| 120 | + """ |
| 121 | + Delete all features from a vector layer |
| 122 | + """ |
| 123 | + layer = cls._getLayer(layer_name) |
| 124 | + layer.startEditing() |
| 125 | + layer.deleteFeatures([f.id() for f in layer.getFeatures()]) |
| 126 | + layer.commitChanges() |
| 127 | + assert layer.featureCount() == 0 |
| 128 | + |
| 129 | + @classmethod |
| 130 | + def _getLayer(cls, layer_name): |
| 131 | + """ |
| 132 | + OGR Layer factory |
| 133 | + """ |
| 134 | + path = cls.testdata_path + layer_name + '.shp' |
| 135 | + layer = QgsVectorLayer(path, layer_name, "ogr") |
| 136 | + assert layer.isValid() |
| 137 | + return layer |
| 138 | + |
| 139 | + @classmethod |
| 140 | + def _getWFSLayer(cls, type_name, layer_name=None): |
| 141 | + """ |
| 142 | + WFS layer factory |
| 143 | + """ |
| 144 | + if layer_name is None: |
| 145 | + layer_name = 'wfs_' + type_name |
| 146 | + parms = { |
| 147 | + 'srsname': 'EPSG:4326', |
| 148 | + 'typename': type_name, |
| 149 | + 'url': 'http://127.0.0.1:%s/?map=%s' % (cls.port, |
| 150 | + cls.project_path), |
| 151 | + 'version': 'auto', |
| 152 | + 'table': '', |
| 153 | + #'sql': '', |
| 154 | + } |
| 155 | + uri = ' '.join([("%s='%s'" % (k, v)) for k, v in parms.iteritems()]) |
| 156 | + wfs_layer = QgsVectorLayer(uri, layer_name, 'WFS') |
| 157 | + assert wfs_layer.isValid() |
| 158 | + return wfs_layer |
| 159 | + |
| 160 | + @classmethod |
| 161 | + def _getFeatureByAttribute(cls, layer, attr_name, attr_value): |
| 162 | + """ |
| 163 | + Find the feature and return it, raise exception if not found |
| 164 | + """ |
| 165 | + request = QgsFeatureRequest(QgsExpression("%s=%s" % (attr_name, |
| 166 | + attr_value))) |
| 167 | + try: |
| 168 | + return layer.dataProvider().getFeatures(request).next() |
| 169 | + except StopIteration: |
| 170 | + raise Exception("Wrong attributes in WFS layer %s" % |
| 171 | + layer.name()) |
| 172 | + |
| 173 | + def _checkAddFeatures(self, wfs_layer, layer, features): |
| 174 | + """ |
| 175 | + Check features were added |
| 176 | + """ |
| 177 | + wfs_layer.dataProvider().addFeatures(features) |
| 178 | + layer = self._getLayer(layer.name()) |
| 179 | + self.assertTrue(layer.isValid()) |
| 180 | + self.assertEqual(layer.featureCount(), len(features)) |
| 181 | + |
| 182 | + def _checkUpdateFeatures(self, wfs_layer, old_features, new_features): |
| 183 | + """ |
| 184 | + Check features can be updated |
| 185 | + """ |
| 186 | + for i in range(len(old_features)): |
| 187 | + f = self._getFeatureByAttribute(wfs_layer, 'id', old_features[i]['id']) |
| 188 | + self.assertTrue(wfs_layer.dataProvider().changeGeometryValues({f.id(): new_features[i].geometry()})) |
| 189 | + self.assertTrue(wfs_layer.dataProvider().changeAttributeValues({f.id(): {0: new_features[i]['id']}})) |
| 190 | + |
| 191 | + def _checkMatchFeatures(self, wfs_layer, features): |
| 192 | + """ |
| 193 | + Check feature attributes and geometry match |
| 194 | + """ |
| 195 | + for f in features: |
| 196 | + wf = self._getFeatureByAttribute(wfs_layer, 'id', f['id']) |
| 197 | + self.assertEqual(wf.geometry().exportToWkt(), |
| 198 | + f.geometry().exportToWkt()) |
| 199 | + |
| 200 | + def _checkDeleteFeatures(self, layer, features): |
| 201 | + """ |
| 202 | + Delete features |
| 203 | + """ |
| 204 | + ids = [] |
| 205 | + for f in features: |
| 206 | + wf = self._getFeatureByAttribute(layer, 'id', f['id']) |
| 207 | + ids.append(wf.id()) |
| 208 | + self.assertTrue(layer.dataProvider().deleteFeatures(ids)) |
| 209 | + |
| 210 | + def _testLayer(self, wfs_layer, layer, old_features, new_features): |
| 211 | + """ |
| 212 | + Perform all test steps on the layer. |
| 213 | + """ |
| 214 | + self.assertEqual(wfs_layer.featureCount(), 0) |
| 215 | + self._checkAddFeatures(wfs_layer, layer, old_features) |
| 216 | + self._checkMatchFeatures(wfs_layer, old_features) |
| 217 | + self.assertEqual(wfs_layer.dataProvider().featureCount(), |
| 218 | + len(old_features)) |
| 219 | + self._checkUpdateFeatures(wfs_layer, old_features, new_features) |
| 220 | + self._checkMatchFeatures(wfs_layer, new_features) |
| 221 | + self._checkDeleteFeatures(wfs_layer, new_features) |
| 222 | + self.assertEqual(wfs_layer.dataProvider().featureCount(), 0) |
| 223 | + |
| 224 | + def testWFSPoints(self): |
| 225 | + """ |
| 226 | + Adds some points, then check and clear all |
| 227 | + """ |
| 228 | + layer_name = 'test_point' |
| 229 | + layer = self._getLayer(layer_name) |
| 230 | + wfs_layer = self._getWFSLayer(layer_name) |
| 231 | + feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 232 | + feat1['id'] = 11 |
| 233 | + feat1.setGeometry(QgsGeometry.fromPoint(QgsPoint(9, 45))) |
| 234 | + feat2 = QgsFeature(wfs_layer.pendingFields()) |
| 235 | + feat2.setGeometry(QgsGeometry.fromPoint(QgsPoint(9.5, 45.5))) |
| 236 | + feat2['id'] = 12 |
| 237 | + old_features = [feat1, feat2] |
| 238 | + # Change feat1 |
| 239 | + new_feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 240 | + new_feat1['id'] = 121 |
| 241 | + new_feat1.setGeometry(QgsGeometry.fromPoint(QgsPoint(10, 46))) |
| 242 | + new_features = [new_feat1, feat2] |
| 243 | + self._testLayer(wfs_layer, layer, old_features, new_features) |
| 244 | + |
| 245 | + def testWFSPolygons(self): |
| 246 | + """ |
| 247 | + Adds some polygons, then check and clear all |
| 248 | + """ |
| 249 | + layer_name = 'test_polygon' |
| 250 | + layer = self._getLayer(layer_name) |
| 251 | + wfs_layer = self._getWFSLayer(layer_name) |
| 252 | + feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 253 | + feat1['id'] = 11 |
| 254 | + feat1.setGeometry(QgsGeometry.fromRect(QgsRectangle(QgsPoint(9, 45), QgsPoint(10, 46)))) |
| 255 | + feat2 = QgsFeature(wfs_layer.pendingFields()) |
| 256 | + feat2.setGeometry(QgsGeometry.fromRect(QgsRectangle(QgsPoint(9.5, 45.5), QgsPoint(10.5, 46.5)))) |
| 257 | + feat2['id'] = 12 |
| 258 | + old_features = [feat1, feat2] |
| 259 | + # Change feat1 |
| 260 | + new_feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 261 | + new_feat1['id'] = 121 |
| 262 | + new_feat1.setGeometry(QgsGeometry.fromRect(QgsRectangle(QgsPoint(10, 46), QgsPoint(11.5, 47.5)))) |
| 263 | + new_features = [new_feat1, feat2] |
| 264 | + self._testLayer(wfs_layer, layer, old_features, new_features) |
| 265 | + |
| 266 | + def testWFSLineStrings(self): |
| 267 | + """ |
| 268 | + Adds some lines, then check and clear all |
| 269 | + """ |
| 270 | + layer_name = 'test_linestring' |
| 271 | + layer = self._getLayer(layer_name) |
| 272 | + wfs_layer = self._getWFSLayer(layer_name) |
| 273 | + feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 274 | + feat1['id'] = 11 |
| 275 | + feat1.setGeometry(QgsGeometry.fromPolyline([QgsPoint(9, 45), QgsPoint(10, 46)])) |
| 276 | + feat2 = QgsFeature(wfs_layer.pendingFields()) |
| 277 | + feat2.setGeometry(QgsGeometry.fromPolyline([QgsPoint(9.5, 45.5), QgsPoint(10.5, 46.5)])) |
| 278 | + feat2['id'] = 12 |
| 279 | + old_features = [feat1, feat2] |
| 280 | + # Change feat1 |
| 281 | + new_feat1 = QgsFeature(wfs_layer.pendingFields()) |
| 282 | + new_feat1['id'] = 121 |
| 283 | + new_feat1.setGeometry(QgsGeometry.fromPolyline([QgsPoint(9.8, 45.8), QgsPoint(10.8, 46.8)])) |
| 284 | + new_features = [new_feat1, feat2] |
| 285 | + self._testLayer(wfs_layer, layer, old_features, new_features) |
| 286 | + |
| 287 | + |
| 288 | +if __name__ == '__main__': |
| 289 | + unittest.main() |
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