File indexing completed on 2024-05-12 15:53:53

 /**
  * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * 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.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
 #include <QtDebug>
 #include <QDebug>
 #include <QtTest/QtTest>
 #include <QStandardItem>
 #include <QStandardItemModel>
 
 #include <KChartCartesianDiagramDataCompressor_p.h>
 
 typedef KChart::CartesianDiagramDataCompressor::CachePosition CachePosition;
 
 struct Match {
     Match( const CachePosition& pos, const QModelIndex& index )
         : cachePosition( pos ),
           index( index )
     {
     }
     CachePosition cachePosition;
     QModelIndex index;
 };
 
 class CartesianDiagramDataCompressorTests : public QObject
 {
     Q_OBJECT
 
 private Q_SLOTS:
 
     void initTestCase()
     {
         // make 10 data sets a n elements
         model.clear();
         model.setColumnCount( ColumnCount );
         model.setRowCount( RowCount );
         for ( int row = 0; row < RowCount; ++row )
             for ( int column = 0; column < ColumnCount; ++column ) {
                 QStandardItem* item = new QStandardItem();
                 item->setData( 1, Qt::DisplayRole );
                 model.setItem( row, column, item );
             }
 
         width = 200;
         height = 100;
         // these settings result in 5 indexes per pixel
     }
 
     void initializationTest()
     {
         QVERIFY2( compressor.modelDataColumns() == 0, "without a model, columns should be zero" );
         QVERIFY2( compressor.modelDataRows() == 0, "without a model,rows should be zero" );
     }
 
     void setModelTest()
     {
         compressor.setModel( &model );
         QVERIFY2( compressor.modelDataColumns() == model.columnCount(),
                   "columns should be equal to model columns, independent of resolution" );
         QVERIFY2( compressor.modelDataRows() == 0, "without a diagram resolution, columns should be zero" );
     }
 
     void setResolutionTest()
     {
         compressor.setResolution( width, height );
         QVERIFY2( compressor.modelDataColumns() == model.columnCount(),
                   "column count should be equal to dataset count when both model and resolution are set" );
         QVERIFY2( compressor.modelDataRows() == width,
                   "row count should be equal to width when both model and resolution are set, and "
                   "model row count exceeds widget width");
     }
 
     void mapToCacheTest()
     {
         CachePosition NullPoint( -1, -1 );
         Match  matches[] = {                                    
             Match( CachePosition( 0, 0 ), model.index( 0, 0 ) ), 
             Match( CachePosition( 0, 0 ), model.index( 1, 0 ) ), 
             Match( CachePosition( 0, 0 ), model.index( 2, 0 ) ), 
             Match( CachePosition( 0, 0 ), model.index( 3, 0 ) ), 
             Match( CachePosition( 0, 0 ), model.index( 4, 0 ) ), 
             Match( CachePosition( 0, 1 ), model.index( 0, 1 ) ),
             Match( CachePosition( 0, 1 ), model.index( 1, 1 ) ),
             Match( CachePosition( 0, 1 ), model.index( 2, 1 ) ),
             Match( CachePosition( 0, 1 ), model.index( 3, 1 ) ),
             Match( CachePosition( 0, 1 ), model.index( 4, 1 ) ),
             Match( CachePosition( 2, 2 ), model.index( 10, 2 ) ),
             Match( CachePosition( 2, 2 ), model.index( 11, 2 ) ),
             Match( CachePosition( 2, 2 ), model.index( 12, 2 ) ),
             Match( CachePosition( 2, 2 ), model.index( 13, 2 ) ),
             Match( CachePosition( 2, 2 ), model.index( 14, 2 ) ),
             // the following are outside the model boundary:
             Match( NullPoint, model.index( 0, ColumnCount ) ),
             Match( NullPoint, model.index( 1, ColumnCount ) ),
             Match( NullPoint, model.index( 2, ColumnCount ) ),
             Match( NullPoint, model.index( 3, ColumnCount ) ),
             Match( NullPoint, model.index( 4, ColumnCount) ),
             Match( NullPoint, model.index( RowCount, 0 ) ),
             // sentinel
             Match( CachePosition( 0, 0 ), QModelIndex() )
         };
 
         for ( int i = 0; matches[i].index.isValid(); ++i ) {
             QCOMPARE( matches[i].cachePosition, compressor.mapToCache( matches[i].index ) );
         }
 
         QCOMPARE( NullPoint, compressor.mapToCache( QModelIndex() ) );
     }
 
     void mapToModelTest()
     {
         // test 1: valid point:
         {
             QModelIndexList indexes;
             CachePosition point( 0, 0 );
             indexes = compressor.mapToModel( point );
             for ( const QModelIndex& index : qAsConst(indexes) ) {
                 QVERIFY2( compressor.mapToCache( index ) == point,
                           "index mapToModel does not map back to the original cache point" );
             }
         }
         // test 2: invalid point:
         {
             QModelIndexList indexes;
             CachePosition point( 0, ColumnCount ); // just outside column count
             indexes = compressor.mapToModel( point );
             QVERIFY2( indexes.isEmpty(),
                       "index list for a point outside the data space should be empty" );
         }
         {
             QModelIndexList indexes;
             CachePosition point( RowCount, 0 ); // just outside row count
             indexes = compressor.mapToModel( point );
             QVERIFY2( indexes.isEmpty(),
                       "index list for a point outside the data space should be empty" );
         }
     }
 
 
    void invalidateTest()
     {
         CachePosition position( 0, 0 );
         // KChart::CartesianDiagramDataCompressor::DataPoint point;
         QVERIFY( compressor.mapsToModelIndex( position ) );
         compressor.retrieveModelData( position );
         QVERIFY2( compressor.isCached( position ),
                   "datapoint should be valid after retrieveModelData( position )" );
         QModelIndex index( model.index( 0, 0 ) );
         compressor.slotModelDataChanged( index, index );
         QVERIFY2( ! compressor.isCached( position ),
                   "datapoint should be not valid after call to dataChanged slot" );
         CachePosition position2( 1, 0 );
         CachePosition position3( 2, 1 );
         compressor.retrieveModelData( position2 );
         compressor.retrieveModelData( position3 );
         QVERIFY2( ! compressor.isCached( position ),
                   "datapoint should be not valid after call to dataChanged slot" );
         compressor.retrieveModelData( position );
         QVERIFY2( compressor.isCached( position ) && compressor.isCached( position2 ) && compressor.isCached( position3 ),
                   "datapoints should all be valid after retrieveModelData" );
         QModelIndex index2( model.index( 1 * compressor.indexesPerPixel(), 0 ) );
         compressor.slotModelDataChanged( index, index2 );
         QVERIFY2( ! compressor.isCached( position ) && ! compressor.isCached( position2 ) && compressor.isCached( position3 ),
                   "dataChanged needs to invalidate an exact range" );
     }
 
     void datasetDimensionTest()
     {
         int oldDimension = compressor.m_datasetDimension;
         compressor.setDatasetDimension( 2 );
         QVERIFY2( compressor.modelDataColumns() == ColumnCount / 2,
                   "datasetDimension == 2 should cut the column count in half" );
         compressor.setDatasetDimension( oldDimension );
         QVERIFY2( compressor.modelDataColumns() == ColumnCount,
                   "datasetDimension == 1 should restore the old column count" );
     }
 
     void cleanupTestCase()
     {
     }
 
 private:
     KChart::CartesianDiagramDataCompressor compressor;
     QStandardItemModel model;
     static const int RowCount;
     static const int ColumnCount;
     int width;
     int height;
 };
 
 const int CartesianDiagramDataCompressorTests::ColumnCount = 10;
 const int CartesianDiagramDataCompressorTests::RowCount = 1000;
 
 
 QTEST_MAIN(CartesianDiagramDataCompressorTests)
 
 #include "CartesianDiagramDataCompressorTests.moc"