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Sandro Santilli
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Stub test for QgsMapToPixelGeometrySimplifier
See #12416
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‎tests/src/core/CMakeLists.txt‎

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@@ -146,6 +146,7 @@ ADD_QGIS_TEST(maplayertest testqgsmaplayer.cpp)
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ADD_QGIS_TEST(maprenderertest testqgsmaprenderer.cpp)
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ADD_QGIS_TEST(maprotationtest testqgsmaprotation.cpp)
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ADD_QGIS_TEST(mapsettingstest testqgsmapsettings.cpp)
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ADD_QGIS_TEST(maptopixelgeometrysimplifiertest testqgsmaptopixelgeometrysimplifier.cpp)
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ADD_QGIS_TEST(maptopixeltest testqgsmaptopixel.cpp)
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ADD_QGIS_TEST(markerlinessymboltest testqgsmarkerlinesymbol.cpp)
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ADD_QGIS_TEST(networkcontentfetcher testqgsnetworkcontentfetcher.cpp )

‎tests/src/core/testqgsmaptopixelgeometrysimplifier.cpp‎

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/***************************************************************************
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testqgsmaptopixelgeometrysimplifier.cpp
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--------------------------------------
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Date : 20 Jan 2008
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Copyright : (C) 2016 by Sandro Santilli
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Email : strk @ keybit.net
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <QtTest/QtTest>
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#include <QObject>
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#include <QString>
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#include <QStringList>
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#include <QApplication>
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#include <QFileInfo>
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#include <QDir>
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#include <QDesktopServices>
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#include <QVector>
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#include <QPointF>
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#include <QImage>
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#include <QPainter>
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//qgis includes...
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#include <qgsapplication.h>
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#include <qgsgeometry.h>
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#include <qgsmaptopixelgeometrysimplifier.h>
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#if 0
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#include <qgspoint.h>
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#include "qgsgeometryutils.h"
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#include "qgspointv2.h"
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#include "qgslinestringv2.h"
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#include "qgspolygonv2.h"
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#include "qgscircularstringv2.h"
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#endif
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//qgs unit test utility class
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#include "qgsrenderchecker.h"
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/** \ingroup UnitTests
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* This is a unit test for the QgsMapToPixelGeometrySimplifier class
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*/
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class TestQgsMapToPixelGeometrySimplifier : public QObject
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{
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Q_OBJECT
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public:
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TestQgsMapToPixelGeometrySimplifier();
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private slots:
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void initTestCase();// will be called before the first testfunction is executed.
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void cleanupTestCase();// will be called after the last testfunction was executed.
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void init();// will be called before each testfunction is executed.
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void cleanup();// will be called after every testfunction.
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void testDefaultGeometry();
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void testLine1();
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void testIsGeneralizableByMapBoundingBox();
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void testMismatchWKB();
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};
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TestQgsMapToPixelGeometrySimplifier::TestQgsMapToPixelGeometrySimplifier()
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{
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}
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void TestQgsMapToPixelGeometrySimplifier::initTestCase()
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{
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// Runs once before any tests are run
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// init QGIS's paths - true means that all path will be inited from prefix
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QgsApplication::init();
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QgsApplication::initQgis();
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QgsApplication::showSettings();
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}
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void TestQgsMapToPixelGeometrySimplifier::cleanupTestCase()
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{
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// Runs once after all tests are run
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QgsApplication::exitQgis();
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}
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void TestQgsMapToPixelGeometrySimplifier::init()
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{
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// will be called before every testfunction.
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}
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void TestQgsMapToPixelGeometrySimplifier::cleanup()
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{
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// will be called after every testfunction.
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}
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void TestQgsMapToPixelGeometrySimplifier::testDefaultGeometry()
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{
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QgsGeometry *g = new QgsGeometry();
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int fl = QgsMapToPixelSimplifier::SimplifyGeometry;
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bool ret = QgsMapToPixelSimplifier::simplifyGeometry( g, fl, 10.0 );
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QVERIFY( ! ret ); // not simplifiable
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}
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void TestQgsMapToPixelGeometrySimplifier::testLine1()
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{
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// NOTE: we need more than 4 vertices, or the line will not be
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// reduced at all by the algorithm
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QgsGeometry *g = QgsGeometry::fromWkt( "LINESTRING(0 0,1 1,2 0,3 1,4 0,20 1,20 0,10 0,5 0)" );
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int fl;
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bool ret;
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QString wkt;
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fl = QgsMapToPixelSimplifier::SimplifyGeometry;
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ret = QgsMapToPixelSimplifier::simplifyGeometry( g, fl, 10.0 );
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QVERIFY( ret );
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wkt = g->exportToWkt();
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// NOTE: I don't think vertex 1,1 should be in this result,
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// but that's what we get now
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QCOMPARE( wkt, QString( "LineString (0 0, 1 1, 20 1, 10 0, 5 0)" ) );
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fl = QgsMapToPixelSimplifier::SimplifyEnvelope;
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ret = QgsMapToPixelSimplifier::simplifyGeometry( g, fl, 20.0 );
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QVERIFY( ! ret );
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ret = QgsMapToPixelSimplifier::simplifyGeometry( g, fl, 30.0 );
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QVERIFY( ret );
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wkt = g->exportToWkt();
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// NOTE: I don't understand this result either
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QCOMPARE( wkt, QString( "LineString (0 0, 20 1)" ) );
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}
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void
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TestQgsMapToPixelGeometrySimplifier::testIsGeneralizableByMapBoundingBox()
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{
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QgsRectangle r1( 0, 0, 10, 1 );
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bool ret;
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ret = QgsMapToPixelSimplifier::isGeneralizableByMapBoundingBox( r1, 15 );
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QVERIFY( ret );
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// NOTE: boundary case
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ret = QgsMapToPixelSimplifier::isGeneralizableByMapBoundingBox( r1, 10 );
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QVERIFY( ! ret );
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ret = QgsMapToPixelSimplifier::isGeneralizableByMapBoundingBox( r1, 5 );
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QVERIFY( ! ret );
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}
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void TestQgsMapToPixelGeometrySimplifier::testMismatchWKB()
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{
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// TODO see http://hub.qgis.org/issues/12416
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}
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QTEST_MAIN( TestQgsMapToPixelGeometrySimplifier )
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#include "testqgsmaptopixelgeometrysimplifier.moc"

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