def testSetBufferedGroupsAfterAutomaticGroups(self):
ml = QgsVectorLayer(
'Point?crs=epsg:4326&field=int:integer&field=int2:integer', 'test',
'memory')
# Load 2 layer from a geopackage
d = QTemporaryDir()
options = QgsVectorFileWriter.SaveVectorOptions()
options.driverName = 'GPKG'
options.layerName = 'layer_a'
err, msg, newFileName, newLayer = QgsVectorFileWriter.writeAsVectorFormatV3(
ml, os.path.join(d.path(), 'test_EditBufferGroup.gpkg'),
QgsCoordinateTransformContext(), options)
options.layerName = 'layer_b'
options.actionOnExistingFile = QgsVectorFileWriter.CreateOrOverwriteLayer
err, msg, newFileName, newLayer = QgsVectorFileWriter.writeAsVectorFormatV3(
ml, os.path.join(d.path(), 'test_EditBufferGroup.gpkg'),
QgsCoordinateTransformContext(), options)
layer_a = QgsVectorLayer(newFileName + '|layername=layer_a')
self.assertTrue(layer_a.isValid())
layer_b = QgsVectorLayer(newFileName + '|layername=layer_b')
self.assertTrue(layer_b.isValid())
project = QgsProject()
project.addMapLayers([layer_a, layer_b, ml])
project.setTransactionMode(Qgis.TransactionMode.AutomaticGroups)
project.setTransactionMode(Qgis.TransactionMode.BufferedGroups)
project.startEditing()
success, rollbackErrors = project.rollBack(True)
self.assertTrue(success)
