def test_representValue(self):
QgsSettings().setValue("qgis/nullValue", "NULL")
layer = QgsVectorLayer("none?field=number1:integer&field=number2:double&field=text1:string&field=number3:integer&field=number4:double&field=text2:string",
"layer", "memory")
self.assertTrue(layer.isValid())
QgsProject.instance().addMapLayer(layer)
f = QgsFeature()
f.setAttributes([2, 2.5, 'NULL', None, None, None])
layer.dataProvider().addFeatures([f])
fieldFormatter = QgsValueMapFieldFormatter()
# Tests with different value types occurring in the value map
# old style config (pre 3.0)
config = {'map': {'two': '2', 'twoandhalf': '2.5', 'NULL text': 'NULL',
'nothing': self.VALUEMAP_NULL_TEXT}}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), 'two')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), 'twoandhalf')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), 'NULL text')
# Tests with null values of different types, if value map contains null
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), 'nothing')
# new style config (post 3.0)
config = {'map': [{'two': '2'},
{'twoandhalf': '2.5'},
{'NULL text': 'NULL'},
{'nothing': self.VALUEMAP_NULL_TEXT}]}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), 'two')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), 'twoandhalf')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), 'NULL text')
# Tests with null values of different types, if value map contains null
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), 'nothing')
# Tests with fallback display for different value types
config = {}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), '(2)')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), '(2.50000)')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), '(NULL)')
# Tests with fallback display for null in different types of fields
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), '(NULL)')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), '(NULL)')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), '(NULL)')
QgsProject.instance().removeAllMapLayers()
def test_representValue(self):
QgsSettings().setValue("qgis/nullValue", "NULL")
layer = QgsVectorLayer("none?field=number1:integer&field=number2:double&field=text1:string&field=number3:integer&field=number4:double&field=text2:string",
"layer", "memory")
self.assertTrue(layer.isValid())
QgsProject.instance().addMapLayer(layer)
f = QgsFeature()
f.setAttributes([2, 2.5, 'NULL', None, None, None])
layer.dataProvider().addFeatures([f])
fieldFormatter = QgsValueMapFieldFormatter()
# Tests with different value types occurring in the value map
# old style config (pre 3.0)
config = {'map': {'two': '2', 'twoandhalf': '2.5', 'NULL text': 'NULL',
'nothing': self.VALUEMAP_NULL_TEXT}}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), 'two')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), 'twoandhalf')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), 'NULL text')
# Tests with null values of different types, if value map contains null
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), 'nothing')
# new style config (post 3.0)
config = {'map': [{'two': '2'},
{'twoandhalf': '2.5'},
{'NULL text': 'NULL'},
{'nothing': self.VALUEMAP_NULL_TEXT}]}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), 'two')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), 'twoandhalf')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), 'NULL text')
# Tests with null values of different types, if value map contains null
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), 'nothing')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), 'nothing')
# Tests with fallback display for different value types
config = {}
self.assertEqual(fieldFormatter.representValue(layer, 0, config, None, 2), '(2)')
self.assertEqual(fieldFormatter.representValue(layer, 1, config, None, 2.5), '(2.50000)')
self.assertEqual(fieldFormatter.representValue(layer, 2, config, None, 'NULL'), '(NULL)')
# Tests with fallback display for null in different types of fields
self.assertEqual(fieldFormatter.representValue(layer, 3, config, None, None), '(NULL)')
self.assertEqual(fieldFormatter.representValue(layer, 4, config, None, None), '(NULL)')
self.assertEqual(fieldFormatter.representValue(layer, 5, config, None, None), '(NULL)')
QgsProject.instance().removeAllMapLayers()