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testqgsvaluerelationfieldformatter.cpp
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testqgsvaluerelationfieldformatter.cpp
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/***************************************************************************
testqgsvaluerelationfieldformatter.cpp
--------------------------------------
Date : 13/12/2019
Copyright : (C) 2019 by Alessandro Pasotti
Email : elpaso at itopen dot it
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <QObject>
#include <QString>
#include "qgstest.h"
#include "qgsapplication.h"
#include "qgsproject.h"
#include "qgsrelationmanager.h"
#include "qgsfieldformatterregistry.h"
//header for class being tested
#include "fieldformatter/qgsvaluerelationfieldformatter.h"
class TestQgsValueRelationFieldFormatter: public QObject
{
Q_OBJECT
private slots:
void initTestCase(); // will be called before the first testfunction is executed.
void cleanupTestCase(); // will be called after the last testfunction was executed.
void init(); // will be called before each testfunction is executed.
void cleanup(); // will be called after every testfunction.
void testDependencies();
void testSortValueNull();
private:
std::unique_ptr<QgsVectorLayer> mLayer1;
std::unique_ptr<QgsVectorLayer> mLayer2;
std::unique_ptr<QgsRelation> mRelation;
};
void TestQgsValueRelationFieldFormatter::initTestCase()
{
QgsApplication::init();
QgsApplication::initQgis();
}
void TestQgsValueRelationFieldFormatter::cleanupTestCase()
{
QgsApplication::exitQgis();
}
void TestQgsValueRelationFieldFormatter::cleanup()
{
QgsProject::instance()->removeMapLayer( mLayer1.get() );
QgsProject::instance()->removeMapLayer( mLayer2.get() );
}
void TestQgsValueRelationFieldFormatter::init()
{
// create layer
mLayer1.reset( new QgsVectorLayer( QStringLiteral( "LineString?crs=epsg:3111&field=pk:int&field=fk:int" ), QStringLiteral( "vl1" ), QStringLiteral( "memory" ) ) );
QgsProject::instance()->addMapLayer( mLayer1.get(), false, false );
mLayer2.reset( new QgsVectorLayer( QStringLiteral( "LineString?field=pk:int&field=material:string&field=diameter:int&field=raccord:string" ), QStringLiteral( "vl2" ), QStringLiteral( "memory" ) ) );
QgsProject::instance()->addMapLayer( mLayer2.get(), false, false );
// create relation
mRelation.reset( new QgsRelation() );
mRelation->setId( QStringLiteral( "vl1.vl2" ) );
mRelation->setName( QStringLiteral( "vl1.vl2" ) );
mRelation->setReferencingLayer( mLayer1->id() );
mRelation->setReferencedLayer( mLayer2->id() );
mRelation->addFieldPair( QStringLiteral( "fk" ), QStringLiteral( "pk" ) );
QVERIFY( mRelation->isValid() );
QgsProject::instance()->relationManager()->addRelation( *mRelation );
// add features
QgsFeature ft0( mLayer1->fields() );
ft0.setAttribute( QStringLiteral( "pk" ), 0 );
ft0.setAttribute( QStringLiteral( "fk" ), 0 );
mLayer1->startEditing();
mLayer1->addFeature( ft0 );
mLayer1->commitChanges();
QgsFeature ft1( mLayer1->fields() );
ft1.setAttribute( QStringLiteral( "pk" ), 1 );
ft1.setAttribute( QStringLiteral( "fk" ), 1 );
mLayer1->startEditing();
mLayer1->addFeature( ft1 );
mLayer1->commitChanges();
QgsFeature ft2( mLayer2->fields() );
ft2.setAttribute( QStringLiteral( "pk" ), 10 );
ft2.setAttribute( QStringLiteral( "material" ), "iron" );
ft2.setAttribute( QStringLiteral( "diameter" ), 120 );
ft2.setAttribute( QStringLiteral( "raccord" ), "brides" );
mLayer2->startEditing();
mLayer2->addFeature( ft2 );
mLayer2->commitChanges();
QgsFeature ft3( mLayer2->fields() );
ft3.setAttribute( QStringLiteral( "pk" ), 11 );
ft3.setAttribute( QStringLiteral( "material" ), "iron" );
ft3.setAttribute( QStringLiteral( "diameter" ), 120 );
ft3.setAttribute( QStringLiteral( "raccord" ), "sleeve" );
mLayer2->startEditing();
mLayer2->addFeature( ft3 );
mLayer2->commitChanges();
QgsFeature ft4( mLayer2->fields() );
ft4.setAttribute( QStringLiteral( "pk" ), 12 );
ft4.setAttribute( QStringLiteral( "material" ), "steel" );
ft4.setAttribute( QStringLiteral( "diameter" ), 120 );
ft4.setAttribute( QStringLiteral( "raccord" ), "collar" );
mLayer2->startEditing();
mLayer2->addFeature( ft4 );
mLayer2->commitChanges();
}
void TestQgsValueRelationFieldFormatter::testDependencies()
{
// Test dependencies
const QgsEditorWidgetSetup setup { QStringLiteral( "ValueRelation" ), {
{ QStringLiteral( "LayerSource" ), mLayer2->publicSource() },
{ QStringLiteral( "LayerProviderName" ), mLayer2->providerType() },
{ QStringLiteral( "LayerName" ), mLayer2->name() },
{ QStringLiteral( "Layer" ), mLayer2->id() }
}};
QgsFieldFormatter *fieldFormatter = QgsApplication::fieldFormatterRegistry()->fieldFormatter( setup.type() );
const QList<QgsVectorLayerRef> dependencies = fieldFormatter->layerDependencies( setup.config() );
QVERIFY( dependencies.count() == 1 );
const QgsVectorLayerRef dependency = dependencies.first();
QCOMPARE( dependency.layerId, mLayer2->id() );
QCOMPARE( dependency.name, mLayer2->name() );
QCOMPARE( dependency.provider, mLayer2->providerType() );
QCOMPARE( dependency.source, mLayer2->publicSource() );
}
void TestQgsValueRelationFieldFormatter::testSortValueNull()
{
QgsValueRelationFieldFormatter formatter;
QVariantMap config;
config.insert( QStringLiteral( "Layer" ), mLayer2->id() );
config.insert( QStringLiteral( "Key" ), QStringLiteral( "pk" ) );
config.insert( QStringLiteral( "Value" ), QStringLiteral( "material" ) );
// when sorting, a null value is represented with a null QString, not "NULL" string
// if not, the NULL values will take place between M and O (see https://github.com/qgis/QGIS/issues/36114)
QVariant value = formatter.sortValue( mLayer2.get(), 1, config, QVariant(), QVariant() );
QCOMPARE( value, QVariant( QString() ) );
value = formatter.sortValue( mLayer2.get(), 1, config, QVariant(), QVariant( 10 ) );
QCOMPARE( value, QVariant( QString( "iron" ) ) );
}
QGSTEST_MAIN( TestQgsValueRelationFieldFormatter )
#include "testqgsvaluerelationfieldformatter.moc"