sipification problem and unit test attempt

Author: pierreloicq

python/core/auto_generated/symbology/qgsgraduatedsymbolrenderer.sip.in

@@ -330,8 +330,8 @@ Reset the label decimal places to a numberbased on the minimum class interval
         const QgsRendererRangeLabelFormat &legendFormat = QgsRendererRangeLabelFormat(),
         bool useSymmetricMode = false,
         double symmetryPoint = 0.0,
-        QStringList listForCboPrettyBreaks = {},
-        bool astride = false);
+        QStringList listForCboPrettyBreaks = QStringList(),
+        bool astride = false );
 %Docstring
 Creates a new graduated renderer.
 
@@ -518,9 +518,8 @@ Gets the symbol which is used to represent ``value``.
 Returns the matching legend key for a value.
 %End
 
-    
-    QStringList mListForCboPrettyBreaks = {};
-    
+
+
   private:
     QgsGraduatedSymbolRenderer( const QgsGraduatedSymbolRenderer & );
     QgsGraduatedSymbolRenderer &operator=( const QgsGraduatedSymbolRenderer & );

src/core/symbology/qgsgraduatedsymbolrenderer.h

@@ -327,7 +327,7 @@ class CORE_EXPORT QgsGraduatedSymbolRenderer : public QgsFeatureRenderer
         const QgsRendererRangeLabelFormat &legendFormat = QgsRendererRangeLabelFormat(),
         bool useSymmetricMode = false,
         double symmetryPoint = 0.0,
-        QStringList listForCboPrettyBreaks = {},
+        QStringList listForCboPrettyBreaks = QStringList(),
         bool astride = false );
 
     //! create renderer from XML element
@@ -483,7 +483,7 @@ class CORE_EXPORT QgsGraduatedSymbolRenderer : public QgsFeatureRenderer
 
     bool mUseSymmetricMode = false;
     double mSymmetryPoint = 0.0;
-    QStringList mListForCboPrettyBreaks = {};
+    QStringList mListForCboPrettyBreaks = QStringList();
     bool mAstride = false;
 
   private:

tests/src/core/testqgsgraduatedsymbolrenderer.cpp

@@ -20,6 +20,10 @@
 
 #include "qgsgraduatedsymbolrenderer.h"
 
+/** \ingroup UnitTests
+ * This is a unit test for the qgsGraduatedSymbolRenderer class.
+ */
+
 class TestQgsGraduatedSymbolRenderer: public QObject
 {
     Q_OBJECT
@@ -31,6 +35,7 @@ class TestQgsGraduatedSymbolRenderer: public QObject
     void cleanup();// will be called after every testfunction.
     void rangesOverlap();
     void rangesHaveGaps();
+    void _makeBreaksSymmetric(QList<double> &breaks, double symmetryPoint, bool astride);
 
 
   private:
@@ -136,5 +141,29 @@ void TestQgsGraduatedSymbolRenderer::rangesHaveGaps()
   QVERIFY( renderer.rangesHaveGaps() );
 }
 
+void TestQgsGraduatedSymbolRenderer::_makeBreaksSymmetric(QList<double> &breaks, double symmetryPoint, bool astride)
+{
+  const QList<double> unchanged_breaks = {1235, 1023, 997, 800, 555, 10, 1, -5, -11, -423, -811};
+  
+  // with astride = false
+  breaks = unchanged_breaks;
+  symmetryPoint = 12.0;
+  astride = false;
+  _makeBreaksSymmetric( breaks, symmetryPoint, astride );
+  
+  QVERIFY( breaks.contains( symmetryPoint) );
+  // /!\ breaks contain the maximum of the distrib but not the minimum ?
+  QVERIFY( breaks.count() % 2 == 0 ); 
+  
+  // with astride = true
+  breaks = unchanged_breaks;
+  symmetryPoint = 666.3;
+  astride = true;  
+  _makeBreaksSymmetric( breaks, symmetryPoint, astride );
+  
+  QVERIFY( breaks.contains( symmetryPoint) );
+  QVERIFY( breaks.count() % 2 != 0 );   
+}
+
 QGSTEST_MAIN( TestQgsGraduatedSymbolRenderer )
 #include "testqgsgraduatedsymbolrenderer.moc"