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add unit test for extent

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This commit is contained in:
Blottiere Paul 2016-05-18 01:55:44 +02:00
parent b930a4b5e2
commit eb9ab8a4d9
1 changed files with 93 additions and 0 deletions
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93
tests/src/gui/testqgsmapcanvas.cpp
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@ -21,6 +21,7 @@
#include <qgsmaprenderer.h>
#include <qgsmaplayerregistry.h>
#include <qgsrenderchecker.h>
#include <qgsvectordataprovider.h>
namespace QTest
{
@ -47,6 +48,7 @@ class TestQgsMapCanvas : public QObject
void testMapRendererInteraction();
void testPanByKeyboard();
void testMagnification();
void testMagnificationExtent();
private:
QgsMapCanvas* mCanvas;
@ -251,5 +253,96 @@ void TestQgsMapCanvas::testMagnification()
QCOMPARE( checker.compareImages( "map_magnification", 100 ), true );
}
void compareExtent( const QgsRectangle &initialExtent,
const QgsRectangle &extent )
{
QVERIFY( qgsDoubleNear( initialExtent.xMinimum(), extent.xMinimum(), 0.00000000001 ) );
QVERIFY( qgsDoubleNear( initialExtent.xMaximum(), extent.xMaximum(), 0.00000000001 ) );
QVERIFY( qgsDoubleNear( initialExtent.yMinimum(), extent.yMinimum(), 0.00000000001 ) );
QVERIFY( qgsDoubleNear( initialExtent.yMaximum(), extent.yMaximum(), 0.00000000001 ) );
}
void TestQgsMapCanvas::testMagnificationExtent()
{
// build vector layer
QString testDataDir = QString( TEST_DATA_DIR ) + '/';
QString myPointsFileName = testDataDir + "points.shp";
QFileInfo myPointFileInfo( myPointsFileName );
QgsVectorLayer *layer = new QgsVectorLayer( myPointFileInfo.filePath(),
myPointFileInfo.completeBaseName(), "ogr" );
// prepare map canvas
QList<QgsMapCanvasLayer> layers;
layers.append( layer );
mCanvas->setLayerSet( layers );
QgsMapLayerRegistry::instance()->addMapLayers( QList<QgsMapLayer *>() << layer );
// zoomToFullExtent
mCanvas->zoomToFullExtent();
QgsRectangle initialExtent = mCanvas->extent();
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->setMagnificationFactor( 1.0 );
compareExtent( mCanvas->extent(), initialExtent );
// setExtent with layer extent
mCanvas->setExtent( layer->extent() );
initialExtent = mCanvas->extent();
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->setMagnificationFactor( 1.0 );
compareExtent( mCanvas->extent(), initialExtent );
// zoomToSelected
QgsFeature f1( layer->dataProvider()->fields(), 1 );
QgsFeature f2( layer->dataProvider()->fields(), 2 );
QgsFeatureIds ids;
ids << f1.id() << f2.id();
layer->setSelectedFeatures( ids );
mCanvas->zoomToSelected( layer );
initialExtent = mCanvas->extent();
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->setMagnificationFactor( 1.0 );
compareExtent( mCanvas->extent(), initialExtent );
// zoomToFeatureIds
mCanvas->zoomToFeatureIds( layer, ids );
initialExtent = mCanvas->extent();
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->setMagnificationFactor( 1.0 );
compareExtent( mCanvas->extent(), initialExtent );
// zoomIn / zoomOut
initialExtent = mCanvas->extent();
mCanvas->zoomIn();
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->zoomIn();
mCanvas->zoomOut();
mCanvas->setMagnificationFactor( 1.0 );
mCanvas->zoomOut();
compareExtent( mCanvas->extent(), initialExtent );
// zoomScale
initialExtent = mCanvas->extent();
double scale = mCanvas->scale();
mCanvas->zoomScale( 6.052017*10e7 );
mCanvas->setMagnificationFactor( 4.0 );
mCanvas->setMagnificationFactor( 1.0 );
mCanvas->zoomScale( scale );
compareExtent( mCanvas->extent(), initialExtent );
}
QTEST_MAIN( TestQgsMapCanvas )
#include "testqgsmapcanvas.moc"