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testqgsattributetable.cpp
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testqgsattributetable.cpp
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/***************************************************************************
testqgsattributetable.cpp
-------------------------
Date : 2016-02-14
Copyright : (C) 2016 by Nyall Dawson
Email : nyall dot dawson at gmail dot com
***************************************************************************
* *
* 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 "qgstest.h"
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgsfeatureiterator.h"
#include "qgsvectorlayer.h"
#include "qgsfeature.h"
#include "qgsgeometry.h"
#include "qgsvectordataprovider.h"
#include "qgsattributetabledialog.h"
#include "qgsproject.h"
#include "qgsmapcanvas.h"
#include "qgsunittypes.h"
#include "qgssettings.h"
#include "qgstest.h"
/** \ingroup UnitTests
* This is a unit test for the attribute table dialog
*/
class TestQgsAttributeTable : public QObject
{
Q_OBJECT
public:
TestQgsAttributeTable();
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 testFieldCalculation();
void testFieldCalculationArea();
void testNoGeom();
void testSelected();
private:
QgisApp *mQgisApp = nullptr;
};
TestQgsAttributeTable::TestQgsAttributeTable()
: mQgisApp( nullptr )
{
}
//runs before all tests
void TestQgsAttributeTable::initTestCase()
{
qDebug() << "TestQgisAppClipboard::initTestCase()";
// init QGIS's paths - true means that all path will be inited from prefix
QgsApplication::init();
QgsApplication::initQgis();
mQgisApp = new QgisApp();
// setup the test QSettings environment
QCoreApplication::setOrganizationName( QStringLiteral( "QGIS" ) );
QCoreApplication::setOrganizationDomain( QStringLiteral( "qgis.org" ) );
QCoreApplication::setApplicationName( QStringLiteral( "QGIS-TEST" ) );
QSettings().setValue( QStringLiteral( "/qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowAll );
}
//runs after all tests
void TestQgsAttributeTable::cleanupTestCase()
{
QgsApplication::exitQgis();
}
void TestQgsAttributeTable::testFieldCalculation()
{
//test field calculation
//create a temporary layer
std::unique_ptr< QgsVectorLayer> tempLayer( new QgsVectorLayer( QStringLiteral( "LineString?crs=epsg:3111&field=pk:int&field=col1:double" ), QStringLiteral( "vl" ), QStringLiteral( "memory" ) ) );
QVERIFY( tempLayer->isValid() );
QgsFeature f1( tempLayer->dataProvider()->fields(), 1 );
f1.setAttribute( QStringLiteral( "pk" ), 1 );
f1.setAttribute( QStringLiteral( "col1" ), 0.0 );
QgsPolyline line3111;
line3111 << QgsPoint( 2484588, 2425722 ) << QgsPoint( 2482767, 2398853 );
QgsGeometry line3111G = QgsGeometry::fromPolyline( line3111 ) ;
f1.setGeometry( line3111G );
tempLayer->dataProvider()->addFeatures( QgsFeatureList() << f1 );
// set project CRS and ellipsoid
QgsCoordinateReferenceSystem srs( 3111, QgsCoordinateReferenceSystem::EpsgCrsId );
QgsProject::instance()->setCrs( srs );
QgsProject::instance()->setEllipsoid( QStringLiteral( "WGS84" ) );
QgsProject::instance()->setDistanceUnits( QgsUnitTypes::DistanceMeters );
// run length calculation
std::unique_ptr< QgsAttributeTableDialog > dlg( new QgsAttributeTableDialog( tempLayer.get() ) );
tempLayer->startEditing();
dlg->runFieldCalculation( tempLayer.get(), QStringLiteral( "col1" ), QStringLiteral( "$length" ) );
tempLayer->commitChanges();
// check result
QgsFeatureIterator fit = tempLayer->dataProvider()->getFeatures();
QgsFeature f;
QVERIFY( fit.nextFeature( f ) );
double expected = 26932.156;
QVERIFY( qgsDoubleNear( f.attribute( "col1" ).toDouble(), expected, 0.001 ) );
// change project length unit, check calculation respects unit
QgsProject::instance()->setDistanceUnits( QgsUnitTypes::DistanceFeet );
std::unique_ptr< QgsAttributeTableDialog > dlg2( new QgsAttributeTableDialog( tempLayer.get() ) );
tempLayer->startEditing();
dlg2->runFieldCalculation( tempLayer.get(), QStringLiteral( "col1" ), QStringLiteral( "$length" ) );
tempLayer->commitChanges();
// check result
fit = tempLayer->dataProvider()->getFeatures();
QVERIFY( fit.nextFeature( f ) );
expected = 88360.0918635;
QVERIFY( qgsDoubleNear( f.attribute( "col1" ).toDouble(), expected, 0.001 ) );
}
void TestQgsAttributeTable::testFieldCalculationArea()
{
//test $area field calculation
//create a temporary layer
std::unique_ptr< QgsVectorLayer> tempLayer( new QgsVectorLayer( QStringLiteral( "Polygon?crs=epsg:3111&field=pk:int&field=col1:double" ), QStringLiteral( "vl" ), QStringLiteral( "memory" ) ) );
QVERIFY( tempLayer->isValid() );
QgsFeature f1( tempLayer->dataProvider()->fields(), 1 );
f1.setAttribute( QStringLiteral( "pk" ), 1 );
f1.setAttribute( QStringLiteral( "col1" ), 0.0 );
QgsPolyline polygonRing3111;
polygonRing3111 << QgsPoint( 2484588, 2425722 ) << QgsPoint( 2482767, 2398853 ) << QgsPoint( 2520109, 2397715 ) << QgsPoint( 2520792, 2425494 ) << QgsPoint( 2484588, 2425722 );
QgsPolygon polygon3111;
polygon3111 << polygonRing3111;
QgsGeometry polygon3111G = QgsGeometry::fromPolygon( polygon3111 );
f1.setGeometry( polygon3111G );
tempLayer->dataProvider()->addFeatures( QgsFeatureList() << f1 );
// set project CRS and ellipsoid
QgsCoordinateReferenceSystem srs( 3111, QgsCoordinateReferenceSystem::EpsgCrsId );
QgsProject::instance()->setCrs( srs );
QgsProject::instance()->setEllipsoid( QStringLiteral( "WGS84" ) );
QgsProject::instance()->setAreaUnits( QgsUnitTypes::AreaSquareMeters );
// run area calculation
std::unique_ptr< QgsAttributeTableDialog > dlg( new QgsAttributeTableDialog( tempLayer.get() ) );
tempLayer->startEditing();
dlg->runFieldCalculation( tempLayer.get(), QStringLiteral( "col1" ), QStringLiteral( "$area" ) );
tempLayer->commitChanges();
// check result
QgsFeatureIterator fit = tempLayer->dataProvider()->getFeatures();
QgsFeature f;
QVERIFY( fit.nextFeature( f ) );
double expected = 1009089817.0;
QVERIFY( qgsDoubleNear( f.attribute( "col1" ).toDouble(), expected, 1.0 ) );
// change project area unit, check calculation respects unit
QgsProject::instance()->setAreaUnits( QgsUnitTypes::AreaSquareMiles );
std::unique_ptr< QgsAttributeTableDialog > dlg2( new QgsAttributeTableDialog( tempLayer.get() ) );
tempLayer->startEditing();
dlg2->runFieldCalculation( tempLayer.get(), QStringLiteral( "col1" ), QStringLiteral( "$area" ) );
tempLayer->commitChanges();
// check result
fit = tempLayer->dataProvider()->getFeatures();
QVERIFY( fit.nextFeature( f ) );
expected = 389.6117565069;
QVERIFY( qgsDoubleNear( f.attribute( "col1" ).toDouble(), expected, 0.001 ) );
}
void TestQgsAttributeTable::testNoGeom()
{
QgsSettings s;
//test that by default the attribute table DOESN'T fetch geometries (because performance)
std::unique_ptr< QgsVectorLayer> tempLayer( new QgsVectorLayer( QStringLiteral( "LineString?crs=epsg:3111&field=pk:int&field=col1:double" ), QStringLiteral( "vl" ), QStringLiteral( "memory" ) ) );
QVERIFY( tempLayer->isValid() );
s.setValue( QStringLiteral( "/qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowAll );
std::unique_ptr< QgsAttributeTableDialog > dlg( new QgsAttributeTableDialog( tempLayer.get() ) );
QVERIFY( !dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
QVERIFY( dlg->mMainView->masterModel()->request().flags() & QgsFeatureRequest::NoGeometry );
// but if we are requesting only visible features, then geometry must be fetched...
s.setValue( QStringLiteral( "/qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowVisible );
dlg.reset( new QgsAttributeTableDialog( tempLayer.get() ) );
QVERIFY( dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
QVERIFY( !( dlg->mMainView->masterModel()->request().flags() & QgsFeatureRequest::NoGeometry ) );
// try changing existing dialog to no geometry mode
dlg->filterShowAll();
QVERIFY( !dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
QVERIFY( dlg->mMainView->masterModel()->request().flags() & QgsFeatureRequest::NoGeometry );
// and back to a geometry mode
dlg->filterVisible();
QVERIFY( dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
QVERIFY( !( dlg->mMainView->masterModel()->request().flags() & QgsFeatureRequest::NoGeometry ) );
}
void TestQgsAttributeTable::testSelected()
{
// test attribute table opening in show selected mode
QgsSettings s;
std::unique_ptr< QgsVectorLayer> tempLayer( new QgsVectorLayer( QStringLiteral( "LineString?crs=epsg:3111&field=pk:int&field=col1:double" ), QStringLiteral( "vl" ), QStringLiteral( "memory" ) ) );
QVERIFY( tempLayer->isValid() );
QgsFeature f1( tempLayer->dataProvider()->fields(), 1 );
QgsFeature f2( tempLayer->dataProvider()->fields(), 2 );
QgsFeature f3( tempLayer->dataProvider()->fields(), 3 );
QVERIFY( tempLayer->dataProvider()->addFeatures( QgsFeatureList() << f1 << f2 << f3 ) );
s.setValue( QStringLiteral( "/qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowSelected );
std::unique_ptr< QgsAttributeTableDialog > dlg( new QgsAttributeTableDialog( tempLayer.get() ) );
QVERIFY( !dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
//should be nothing - because no selection!
QCOMPARE( dlg->mMainView->masterModel()->request().filterType(), QgsFeatureRequest::FilterFids );
QVERIFY( dlg->mMainView->masterModel()->request().filterFids().isEmpty() );
// make a selection
tempLayer->selectByIds( QgsFeatureIds() << 1 << 3 );
QCOMPARE( dlg->mMainView->masterModel()->request().filterType(), QgsFeatureRequest::FilterFids );
QCOMPARE( dlg->mMainView->masterModel()->request().filterFids(), QgsFeatureIds() << 1 << 3 );
// another test - start with selection when dialog created
dlg.reset( new QgsAttributeTableDialog( tempLayer.get() ) );
QVERIFY( !dlg->mMainView->masterModel()->layerCache()->cacheGeometry() );
QCOMPARE( dlg->mMainView->masterModel()->request().filterType(), QgsFeatureRequest::FilterFids );
QCOMPARE( dlg->mMainView->masterModel()->request().filterFids(), QgsFeatureIds() << 1 << 3 );
// remove selection
tempLayer->removeSelection();
QCOMPARE( dlg->mMainView->masterModel()->request().filterType(), QgsFeatureRequest::FilterFids );
QVERIFY( dlg->mMainView->masterModel()->request().filterFids().isEmpty() );
}
QGSTEST_MAIN( TestQgsAttributeTable )
#include "testqgsattributetable.moc"