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Add tests for deleteCascade option

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This commit is contained in:
Blottiere Paul 2017-07-21 09:00:51 +01:00
parent 293f0f41ba
commit 4be1cc0067
1 changed files with 48 additions and 0 deletions
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48
tests/src/python/test_qgsvectorlayer.py
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@ -54,6 +54,7 @@ from qgis.core import (QgsWkbTypes,
QgsDiagramLayerSettings,
QgsTextFormat,
QgsVectorLayerSelectedFeatureSource,
QgsExpression,
NULL)
from qgis.gui import (QgsAttributeTableModel,
QgsGui
@ -453,6 +454,53 @@ class TestQgsVectorLayer(unittest.TestCase, FeatureSourceTestCase):
self.assertEqual(layer.dataProvider().featureCount(), 0)
def test_DeleteJoinedFeature(self):
joinLayer = createJoinLayer()
joinLayer2 = createJoinLayer()
QgsProject.instance().addMapLayers([joinLayer, joinLayer2])
layer = createLayerWithOnePoint()
join = QgsVectorLayerJoinInfo()
join.setTargetFieldName("fldint")
join.setJoinLayer(joinLayer)
join.setJoinFieldName("y")
join.setUsingMemoryCache(True)
join.setEditable(True)
join.setDeleteCascade(True)
layer.addJoin(join)
join2 = QgsVectorLayerJoinInfo()
join2.setTargetFieldName("fldint")
join2.setJoinLayer(joinLayer2)
join2.setJoinFieldName("y")
join2.setUsingMemoryCache(True)
join2.setPrefix("custom-prefix_")
join2.setEditable(True)
join2.setDeleteCascade(False)
layer.addJoin(join2)
# check number of features
self.assertEqual(layer.featureCount(), 1)
self.assertEqual(joinLayer.featureCount(), 4)
self.assertEqual(joinLayer2.featureCount(), 4)
# delete a feature which is also in joined layers
layer.startEditing()
joinLayer.startEditing()
joinLayer2.startEditing()
filter = QgsExpression.createFieldEqualityExpression('fldint', '123')
feature = next(layer.getFeatures(QgsFeatureRequest().setFilterExpression(filter)))
layer.deleteFeature(feature.id())
# check number of features
self.assertEqual(layer.featureCount(), 0)
self.assertEqual(joinLayer.featureCount(), 3) # deleteCascade activated
self.assertEqual(joinLayer2.featureCount(), 4) # deleteCascade deactivated
# CHANGE ATTRIBUTE
def test_ChangeAttribute(self):