Merge pull request #41407 from nirvn/featurecounter_fix

Fix initiation of feature counter map, use ruleKey

src/core/vector/qgsvectorlayerfeaturecounter.cpp

@@ -40,9 +40,9 @@ bool QgsVectorLayerFeatureCounter::run()
 
   for ( ; symbolIt != symbolList.constEnd(); ++symbolIt )
   {
-    mSymbolFeatureCountMap.insert( symbolIt->label(), 0 );
+    mSymbolFeatureCountMap.insert( symbolIt->ruleKey(), 0 );
     if ( mWithFids )
-      mSymbolFeatureIdMap.insert( symbolIt->label(), QgsFeatureIds() );
+      mSymbolFeatureIdMap.insert( symbolIt->ruleKey(), QgsFeatureIds() );
   }
 
   // If there are no features to be counted, we can spare us the trouble

tests/src/python/CMakeLists.txt

@@ -315,6 +315,7 @@ ADD_PYTHON_TEST(PyQgsVectorFieldMarkerSymbolLayer test_qgsvectorfieldmarkersymbo
 ADD_PYTHON_TEST(PyQgsVectorFileWriter test_qgsvectorfilewriter.py)
 ADD_PYTHON_TEST(PyQgsVectorFileWriterTask test_qgsvectorfilewritertask.py)
 ADD_PYTHON_TEST(PyQgsVectorLayer test_qgsvectorlayer.py)
+ADD_PYTHON_TEST(PyQgsVectorLayerFeatureCounter test_qgsvectorlayerfeaturecounter.py)
 ADD_PYTHON_TEST(PyQgsVectorLayerCache test_qgsvectorlayercache.py)
 ADD_PYTHON_TEST(PyQgsVectorLayerEditBuffer test_qgsvectorlayereditbuffer.py)
 ADD_PYTHON_TEST(PyQgsVectorLayerNamedStyle test_qgsvectorlayer_namedstyle.py)

tests/src/python/test_qgsvectorlayerfeaturecounter.py

@@ -0,0 +1,98 @@
+# -*- coding: utf-8 -*-
+"""QGIS Unit tests for QgsVectorLayerFeatureCounter.
+
+.. note:: This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+"""
+__author__ = 'Mathieu Pellerin'
+__date__ = '08/02/2021'
+__copyright__ = 'Copyright 2021, The QGIS Project'
+
+import qgis  # NOQA
+
+import os
+
+from qgis.PyQt.QtCore import QVariant, Qt, QDateTime, QDate, QTime
+from qgis.PyQt.QtGui import QPainter
+from qgis.PyQt.QtXml import QDomDocument
+from qgis.PyQt.QtTest import QSignalSpy
+
+from qgis.core import (QgsWkbTypes,
+                       QgsVectorLayer,
+                       QgsFeature,
+                       QgsGeometry,
+                       QgsField,
+                       QgsFields,
+                       NULL)
+from qgis.testing import start_app, unittest
+from utilities import unitTestDataPath
+
+start_app()
+
+
+class TestQgsVectorLayerFeatureCounter(unittest.TestCase):
+
+    def setUp(self):
+
+        self.vl = QgsVectorLayer(
+            'Point?crs=epsg:4326&field=pk:integer&field=cnt:integer&field=name:string(0)&field=name2:string(0)&field=num_char:string&field=dt:datetime&field=date:date&field=time:time&key=pk',
+            'test', 'memory')
+        assert (self.vl.isValid())
+
+        f1 = QgsFeature(5)
+        f1.setAttributes([5, -200, NULL, 'NuLl', '5', QDateTime(QDate(2020, 5, 4), QTime(12, 13, 14)), QDate(2020, 5, 2), QTime(12, 13, 1)])
+        f1.setGeometry(QgsGeometry.fromWkt('Point (-71.123 78.23)'))
+
+        f2 = QgsFeature(3)
+        f2.setAttributes([3, 300, 'Pear', 'PEaR', '3', NULL, NULL, NULL])
+
+        f3 = QgsFeature(1)
+        f3.setAttributes([1, 100, 'Orange', 'oranGe', '1', QDateTime(QDate(2020, 5, 3), QTime(12, 13, 14)), QDate(2020, 5, 3), QTime(12, 13, 14)])
+        f3.setGeometry(QgsGeometry.fromWkt('Point (-70.332 66.33)'))
+
+        f4 = QgsFeature(2)
+        f4.setAttributes([2, 200, 'Apple', 'Apple', '2', QDateTime(QDate(2020, 5, 4), QTime(12, 14, 14)), QDate(2020, 5, 4), QTime(12, 14, 14)])
+        f4.setGeometry(QgsGeometry.fromWkt('Point (-68.2 70.8)'))
+
+        f5 = QgsFeature(4)
+        f5.setAttributes([4, 400, 'Honey', 'Honey', '4', QDateTime(QDate(2021, 5, 4), QTime(13, 13, 14)), QDate(2021, 5, 4), QTime(13, 13, 14)])
+        f5.setGeometry(QgsGeometry.fromWkt('Point (-65.32 78.3)'))
+
+        assert self.vl.dataProvider().addFeatures([f1, f2, f3, f4, f5])
+
+        self.vl2 = QgsVectorLayer(
+            'Point?crs=epsg:4326&field=pk:integer&field=cnt:integer&field=name:string(0)&field=name2:string(0)&field=num_char:string&field=dt:datetime&field=date:date&field=time:time&key=pk',
+            'test', 'memory')
+        assert (self.vl2.isValid())
+
+    def tearDown(self):
+        del(self.vl)
+        del(self.vl2)
+
+    def testFeaturesCount(self):
+
+        self.assertTrue(self.vl.renderer().legendSymbolItems())
+
+        signal_spy = QSignalSpy(self.vl.symbolFeatureCountMapChanged)
+        self.vl.countSymbolFeatures()
+        signal_spy.wait()
+
+        self.assertEqual(len(signal_spy), 1)
+        self.assertEqual(self.vl.featureCount(self.vl.renderer().legendSymbolItems()[0].ruleKey()), 5)
+
+    def testFeaturesCountOnEmptyLayer(self):
+
+        self.assertTrue(self.vl2.renderer().legendSymbolItems())
+
+        signal_spy = QSignalSpy(self.vl2.symbolFeatureCountMapChanged)
+        self.vl2.countSymbolFeatures()
+        signal_spy.wait()
+
+        self.assertEqual(len(signal_spy), 1)
+        self.assertEqual(self.vl2.featureCount(self.vl2.renderer().legendSymbolItems()[0].ruleKey()), 0)
+
+
+if __name__ == '__main__':
+    unittest.main()