add test for QgsRectangle::scale and scaled

qgis · Oct 25, 2018 · daca55a · daca55a
1 parent a4e438a
commit daca55a
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/src/gui/qgsmapcanvas.cpp b/src/gui/qgsmapcanvas.cpp
@@ -991,7 +991,7 @@ void QgsMapCanvas::zoomToSelected( QgsVectorLayer *layer )
 
   rect = mapSettings().layerExtentToOutputExtent( layer, rect );
 
-  // zoom in if point cannot be distinguish from others
+  // zoom in if point cannot be distinguished from others
   // also check that rect is empty, as it might not in case of multi points
   if ( layer->geometryType() == QgsWkbTypes::PointGeometry && rect.isEmpty() )
   {

diff --git a/tests/src/core/testqgsrectangle.cpp b/tests/src/core/testqgsrectangle.cpp
@@ -40,6 +40,7 @@ class TestQgsRectangle: public QObject
     void isFinite();
     void combine();
     void dataStream();
+    void scale();
 };
 
 void TestQgsRectangle::isEmpty()
@@ -348,5 +349,22 @@ void TestQgsRectangle::dataStream()
   QCOMPARE( result, original );
 }
 
+void TestQgsRectangle::scale()
+{
+  QgsRectangle rect( 10, 20, 30, 60 );
+  rect.scale( 2 );
+  QCOMPARE( rect, QgsRectangle( 0, 0, 40, 80 ) );
+  rect.scale( .5 );
+  QCOMPARE( rect, QgsRectangle( 10, 20, 30, 60 ) );
+  QgsPointXY center( 10, 20 );
+
+  // with center
+  rect.scale( 2, &center );
+  QCOMPARE( rect, QgsRectangle( -10, -20, 30, 60 ) );
+
+  // scaled
+  QCOMPARE( rect, QgsRectangle( 10, 20, 30, 60 ).scaled( 2, &center ) );
+}
+
 QGSTEST_MAIN( TestQgsRectangle )
 #include "testqgsrectangle.moc"