Add a unit test (would crash without the fix)

leegoobin · Oct 26, 2022 · f0df3e1 · f0df3e1
1 parent 9e853bd
commit f0df3e1
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/tests/src/core/testqgsrasterlayer.cpp b/tests/src/core/testqgsrasterlayer.cpp
@@ -46,6 +46,7 @@
 #include "qgsrastertransparency.h"
 #include "qgspalettedrasterrenderer.h"
 #include "qgsrasterlayertemporalproperties.h"
+#include "qgsmaplayerrenderer.h"
 
 //qgis unit test includes
 #include <qgsrenderchecker.h>
@@ -101,6 +102,7 @@ class TestQgsRasterLayer : public QgsTest
     void sample();
     void testTemporalProperties();
     void rotatedRaster();
+    void forceRasterRender();
 
 
   private:
@@ -1055,5 +1057,18 @@ void TestQgsRasterLayer::rotatedRaster()
   QVERIFY( render( QStringLiteral( "raster_rotated_rgba" ) ) );
 }
 
+void TestQgsRasterLayer::forceRasterRender()
+{
+  QVERIFY2( mpLandsatRasterLayer->isValid(), "landsat.tif layer is not valid!" );
+
+  mMapSettings->setDestinationCrs( mpLandsatRasterLayer->crs() );
+  mMapSettings->setExtent( QgsRectangle( 10, 10, 11, 11 ) );  // outside of layer extent
+  mMapSettings->setLayers( QList<QgsMapLayer *>() << mpLandsatRasterLayer );
+
+  QgsRenderContext context( QgsRenderContext::fromMapSettings( *mMapSettings ) );
+  std::unique_ptr<QgsMapLayerRenderer> layerRenderer( mpLandsatRasterLayer->createMapRenderer( context ) );
+  layerRenderer->forceRasterRender();  // this should not crash
+}
+
 QGSTEST_MAIN( TestQgsRasterLayer )
 #include "testqgsrasterlayer.moc"