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wonder-skwonder-sk
committedJun 19, 2017
Added unit tests
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ltr-3_40final-3_0_0
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‎tests/src/core/testqgsdatadefinedsizelegend.cpp

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/***************************************************************************
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testqgsdatadefinedsizelegend.cpp
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--------------------------------------
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Date : June 2017
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Copyright : (C) 2017 by Martin Dobias
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Email : wonder dot sk at gmail dot com
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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 "qgstest.h"
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#include "qgsdatadefinedsizelegend.h"
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#include "qgsfontutils.h"
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#include "qgsrenderchecker.h"
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#include "qgssymbol.h"
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static QString _fileNameForTest( const QString &testName )
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{
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return QDir::tempPath() + '/' + testName + ".png";
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}
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static bool _verifyImage( const QString &testName, QString &report )
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{
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QgsRenderChecker checker;
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checker.setControlPathPrefix( QStringLiteral( "data_defined_size_legend" ) );
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checker.setControlName( "expected_" + testName );
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checker.setRenderedImage( _fileNameForTest( testName ) );
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checker.setSizeTolerance( 3, 3 );
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bool equal = checker.compareImages( testName, 500 );
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report += checker.report();
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return equal;
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}
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static QgsRenderContext _createRenderContext( double mupp, double dpi, double scale )
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{
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QgsRenderContext context;
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context.setScaleFactor( dpi / 25.4 );
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context.setRendererScale( scale );
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context.setMapToPixel( QgsMapToPixel( mupp ) );
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return context;
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}
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/** \ingroup UnitTests
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* This is a unit test for legend rendering when using data-defined size of markers.
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*/
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class TestQgsDataDefinedSizeLegend : public QObject
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{
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Q_OBJECT
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public:
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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 testBasic();
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void testCrowded();
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private:
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QString mReport;
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};
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void TestQgsDataDefinedSizeLegend::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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mReport += QLatin1String( "<h1>Data Defined Size Legend Tests</h1>\n" );
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}
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void TestQgsDataDefinedSizeLegend::cleanupTestCase()
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{
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QString myReportFile = QDir::tempPath() + "/qgistest.html";
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QFile myFile( myReportFile );
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if ( myFile.open( QIODevice::WriteOnly | QIODevice::Append ) )
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{
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QTextStream myQTextStream( &myFile );
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myQTextStream << mReport;
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myFile.close();
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}
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QgsApplication::exitQgis();
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}
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void TestQgsDataDefinedSizeLegend::testBasic()
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{
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QgsDataDefinedSizeLegend settings;
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settings.setLegendType( QgsDataDefinedSizeLegend::LegendCollapsed );
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settings.setFont( QgsFontUtils::getStandardTestFont( QStringLiteral( "Roman" ) ) );
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QList<QgsDataDefinedSizeLegend::SizeClass> classes;
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classes << QgsDataDefinedSizeLegend::SizeClass( 3., QString( "3" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 15., QString( "15" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 30., QString( "30" ) );
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settings.setClasses( classes );
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QgsStringMap props;
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props["name"] = "circle";
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props["color"] = "200,255,200";
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props["outline_color"] = "0,255,0";
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settings.setSymbol( QgsMarkerSymbol::createSimple( props ) ); // takes ownership
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QgsRenderContext context( _createRenderContext( 100, 96, 100 ) );
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QImage imgBottom = settings.collapsedLegendImage( context, 1 );
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imgBottom.save( _fileNameForTest( "basic_bottom" ) );
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QVERIFY( _verifyImage( "basic_bottom", mReport ) );
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settings.setVerticalAlignment( QgsDataDefinedSizeLegend::AlignCenter );
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QImage imgCenter = settings.collapsedLegendImage( context, 1 );
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imgCenter.save( _fileNameForTest( "basic_center" ) );
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QVERIFY( _verifyImage( "basic_center", mReport ) );
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}
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void TestQgsDataDefinedSizeLegend::testCrowded()
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{
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QgsDataDefinedSizeLegend settings;
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settings.setLegendType( QgsDataDefinedSizeLegend::LegendCollapsed );
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settings.setFont( QgsFontUtils::getStandardTestFont( QStringLiteral( "Roman" ) ) );
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QList<QgsDataDefinedSizeLegend::SizeClass> classes;
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classes << QgsDataDefinedSizeLegend::SizeClass( 2., QString( "2" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 5., QString( "5" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 10., QString( "10" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 12., QString( "12" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 15., QString( "15" ) );
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classes << QgsDataDefinedSizeLegend::SizeClass( 18., QString( "18" ) );
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settings.setClasses( classes );
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QgsStringMap props;
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props["name"] = "circle";
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props["color"] = "200,255,200";
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props["outline_color"] = "0,255,0";
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settings.setSymbol( QgsMarkerSymbol::createSimple( props ) ); // takes ownership
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QgsRenderContext context( _createRenderContext( 100, 96, 100 ) );
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QImage img = settings.collapsedLegendImage( context, 1 );
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img.save( _fileNameForTest( "crowded" ) );
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QVERIFY( _verifyImage( "crowded", mReport ) );
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}
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QGSTEST_MAIN( TestQgsDataDefinedSizeLegend )
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#include "testqgsdatadefinedsizelegend.moc"

‎tests/src/core/testqgslegendrenderer.cpp

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void testFilterByExpression();
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void testDiagramAttributeLegend();
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void testDiagramSizeLegend();
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void testDataDefinedSizeCollapsed();
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private:
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QgsLayerTree *mRoot = nullptr;
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QgsProject::instance()->removeMapLayer( vl4 );
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}
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void TestQgsLegendRenderer::testDataDefinedSizeCollapsed()
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{
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QString testName = QStringLiteral( "legend_data_defined_size_collapsed" );
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QgsVectorLayer *vlDataDefinedSize = new QgsVectorLayer( QStringLiteral( "Point" ), QStringLiteral( "Point Layer" ), QStringLiteral( "memory" ) );
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{
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QgsVectorDataProvider *pr = vlDataDefinedSize->dataProvider();
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QList<QgsField> attrs;
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attrs << QgsField( QStringLiteral( "test_attr" ), QVariant::Int );
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pr->addAttributes( attrs );
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QgsFields fields;
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fields.append( attrs.back() );
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QgsGeometry g = QgsGeometry::fromPoint( QgsPointXY( 1.0, 1.0 ) );
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QList<QgsFeature> features;
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QgsFeature f1( fields, 1 );
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f1.setAttribute( 0, 100 );
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f1.setGeometry( g );
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QgsFeature f2( fields, 2 );
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f2.setAttribute( 0, 200 );
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f2.setGeometry( g );
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QgsFeature f3( fields, 3 );
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f3.setAttribute( 0, 300 );
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f3.setGeometry( g );
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features << f1 << f2 << f3;
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pr->addFeatures( features );
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vlDataDefinedSize->updateFields();
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}
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QgsStringMap props;
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props["name"] = "circle";
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props["color"] = "200,200,200";
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props["outline_color"] = "0,0,0";
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QgsMarkerSymbol *symbol = QgsMarkerSymbol::createSimple( props );
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QgsProperty ddsProperty = QgsProperty::fromField( "test_attr" );
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ddsProperty.setTransformer( new QgsSizeScaleTransformer( QgsSizeScaleTransformer::Linear, 100, 300, 10, 30 ) ); // takes ownership
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symbol->setDataDefinedSize( ddsProperty );
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QgsDataDefinedSizeLegend *ddsLegend = new QgsDataDefinedSizeLegend();
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ddsLegend->setLegendType( QgsDataDefinedSizeLegend::LegendCollapsed );
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QgsSingleSymbolRenderer *r = new QgsSingleSymbolRenderer( symbol ); // takes ownership
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r->setDataDefinedSizeLegend( ddsLegend );
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vlDataDefinedSize->setRenderer( r );
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QgsLayerTree *root = new QgsLayerTree();
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root->addLayer( vlDataDefinedSize );
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QgsLayerTreeModel legendModel( root );
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QgsLegendSettings settings;
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_setStandardTestFont( settings );
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_renderLegend( testName, &legendModel, settings );
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QVERIFY( _verifyImage( testName, mReport ) );
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delete root;
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}
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QGSTEST_MAIN( TestQgsLegendRenderer )
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#include "testqgslegendrenderer.moc"

‎tests/testdata/control_images/data_defined_size_legend/expected_crowded/expected_crowded.png

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