Fix map canvas test

Author: m-kuhn

tests/src/gui/testqgsmapcanvas.cpp

@@ -316,25 +316,25 @@ void TestQgsMapCanvas::testZoomByWheel()
   mCanvas->setWheelFactor( 2 );
 
   //test zoom out
-  QWheelEvent e( QPoint( 0, 0 ), -1, Qt::NoButton, Qt::NoModifier );
+  QWheelEvent e( QPoint( 0, 0 ), -QWheelEvent::DefaultDeltasPerStep, Qt::NoButton, Qt::NoModifier );
   mCanvas->wheelEvent( &e );
   QGSCOMPARENEAR( mCanvas->extent().width(), originalWidth * 2.0, 0.1 );
   QGSCOMPARENEAR( mCanvas->extent().height(), originalHeight * 2.0, 0.1 );
 
   //test zoom in
-  e = QWheelEvent( QPoint( 0, 0 ), 1, Qt::NoButton, Qt::NoModifier );
+  e = QWheelEvent( QPoint( 0, 0 ), QWheelEvent::DefaultDeltasPerStep, Qt::NoButton, Qt::NoModifier );
   mCanvas->wheelEvent( &e );
   QGSCOMPARENEAR( mCanvas->extent().width(), originalWidth, 0.1 );
   QGSCOMPARENEAR( mCanvas->extent().height(), originalHeight, 0.1 );
 
   // test zoom out with ctrl
-  e = QWheelEvent( QPoint( 0, 0 ), -1, Qt::NoButton, Qt::ControlModifier );
+  e = QWheelEvent( QPoint( 0, 0 ), -QWheelEvent::DefaultDeltasPerStep, Qt::NoButton, Qt::ControlModifier );
   mCanvas->wheelEvent( &e );
   QGSCOMPARENEAR( mCanvas->extent().width(), 1.05 * originalWidth, 0.1 );
   QGSCOMPARENEAR( mCanvas->extent().height(), 1.05 * originalHeight, 0.1 );
 
   //test zoom in with ctrl
-  e = QWheelEvent( QPoint( 0, 0 ), 1, Qt::NoButton, Qt::ControlModifier );
+  e = QWheelEvent( QPoint( 0, 0 ), QWheelEvent::DefaultDeltasPerStep, Qt::NoButton, Qt::ControlModifier );
   mCanvas->wheelEvent( &e );
   QGSCOMPARENEAR( mCanvas->extent().width(), originalWidth, 0.1 );
   QGSCOMPARENEAR( mCanvas->extent().height(), originalHeight, 0.1 );