Add test for live value update

qgis · Nov 23, 2021 · c1b8722 · c1b8722
1 parent 6e74561
commit c1b8722
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Showing 2 changed files with 28 additions and 1 deletion.
diff --git a/tests/Testing/Temporary/CTestCostData.txt b/tests/Testing/Temporary/CTestCostData.txt
@@ -0,0 +1 @@
+---
diff --git a/tests/src/python/test_qgsattributeform.py b/tests/src/python/test_qgsattributeform.py
@@ -22,13 +22,17 @@
     QgsEditorWidgetSetup,
     QgsEditFormConfig,
     QgsAttributeEditorElement,
+    QgsDefaultValue,
+    QgsField
 )
 from qgis.gui import (
     QgsAttributeForm,
     QgsGui,
     QgsEditorWidgetWrapper,
-    QgsMapCanvas
+    QgsMapCanvas,
+    QgsAttributeEditorContext
 )
+from qgis.PyQt.QtCore import QVariant
 
 QGISAPP = start_app()
 
@@ -115,6 +119,28 @@ def test_duplicated_widgets(self):
         for field_type, value in field_types.items():
             self.checkForm(field_type, value)
 
+    def test_on_update(self):
+        """Test live update"""
+
+        layer = QgsVectorLayer("Point?field=age:int", "vl", "memory")
+        # set default value for numbers to [1, {age}], it will depend on the field age and should update
+        field = QgsField('numbers', QVariant.List, 'array')
+        field.setEditorWidgetSetup(QgsEditorWidgetSetup('List', {}))
+        layer.dataProvider().addAttributes([field])
+        layer.updateFields()
+        layer.setDefaultValueDefinition(1, QgsDefaultValue('array(1, age)', True))
+        layer.setEditorWidgetSetup(1, QgsEditorWidgetSetup('List', {}))
+        layer.startEditing()
+        form = QgsAttributeForm(layer)
+        feature = QgsFeature(layer.fields())
+        form.setFeature(feature)
+        form.setMode(QgsAttributeEditorContext.AddFeatureMode)
+        form.changeAttribute('numbers', [12])
+        form.changeAttribute('age', 1)
+        self.assertEqual(form.currentFormFeature()['numbers'], [1, 1])
+        form.changeAttribute('age', 7)
+        self.assertEqual(form.currentFormFeature()['numbers'], [1, 7])
+
 
 if __name__ == '__main__':
     unittest.main()