test_provider_ogr_gpkg.py: Test disabling walForSqlite3 setting

Author: rouault

tests/src/python/test_provider_ogr_gpkg.py

@@ -20,6 +20,7 @@
 import glob
 from osgeo import gdal, ogr
 
+from qgis.PyQt.QtCore import QCoreApplication, QSettings
 from qgis.core import QgsVectorLayer, QgsFeature, QgsGeometry, QgsFeatureRequest, QgsRectangle
 from qgis.testing import start_app, unittest
 from utilities import unitTestDataPath
@@ -48,10 +49,17 @@ def setUpClass(cls):
         # Create test layer
         cls.basetestpath = tempfile.mkdtemp()
 
+        QCoreApplication.setOrganizationName("QGIS_Test")
+        QCoreApplication.setOrganizationDomain("TestPyQgsOGRProviderGpkg.com")
+        QCoreApplication.setApplicationName("TestPyQgsOGRProviderGpkg")
+        QSettings().clear()
+        start_app()
+
     @classmethod
     def tearDownClass(cls):
         """Run after all tests"""
         shutil.rmtree(cls.basetestpath, True)
+        QSettings().clear()
 
     def testSingleToMultiPolygonPromotion(self):
 
@@ -200,5 +208,44 @@ def testGeopackageExtentUpdate(self):
         self.assertTrue(QgsGeometry.compare(provider_extent.asPolygon()[0], reference.asPolygon()[0], 0.00001),
                         provider_extent.asPolygon()[0])
 
+    def testDisablewalForSqlite3(self):
+        ''' Test disabling walForSqlite3 setting '''
+        QSettings().setValue("/qgis/walForSqlite3", False)
+
+        tmpfile = os.path.join(self.basetestpath, 'testDisablewalForSqlite3.gpkg')
+        ds = ogr.GetDriverByName('GPKG').CreateDataSource(tmpfile)
+        lyr = ds.CreateLayer('test', geom_type=ogr.wkbPoint)
+        lyr.CreateField(ogr.FieldDefn('attr0', ogr.OFTInteger))
+        lyr.CreateField(ogr.FieldDefn('attr1', ogr.OFTInteger))
+        f = ogr.Feature(lyr.GetLayerDefn())
+        f.SetGeometry(ogr.CreateGeometryFromWkt('POINT(0 0)'))
+        lyr.CreateFeature(f)
+        f = None
+        ds = None
+
+        vl = QgsVectorLayer(u'{}'.format(tmpfile), u'test', u'ogr')
+
+        # Test that we are using default delete mode and not WAL
+        ds = ogr.Open(tmpfile)
+        lyr = ds.ExecuteSQL('PRAGMA journal_mode')
+        f = lyr.GetNextFeature()
+        res = f.GetField(0)
+        ds.ReleaseResultSet(lyr)
+        ds = None
+        self.assertEqual(res, 'delete')
+
+        self.assertTrue(vl.startEditing())
+        feature = vl.getFeatures().next()
+        self.assertTrue(vl.changeAttributeValue(feature.id(), 1, 1001))
+
+        # Commit changes
+        cbk = ErrorReceiver()
+        vl.dataProvider().raiseError.connect(cbk.receiveError)
+        self.assertTrue(vl.commitChanges())
+        self.assertIsNone(cbk.msg)
+        vl = None
+
+        QSettings().setValue("/qgis/walForSqlite3", None)
+
 if __name__ == '__main__':
     unittest.main()