Skip to content
Permalink
Browse files

Add some GDAL provider unit tests...

(...doing penance for my 2.8 sins)
  • Loading branch information
nyalldawson committed Mar 10, 2015
1 parent 4437707 commit cafc722d92f114c364a30d425b59f6e776ed179b
@@ -74,6 +74,7 @@ ENDMACRO (ADD_QGIS_TEST)
# Tests:

ADD_QGIS_TEST(wcsprovidertest testqgswcsprovider.cpp)
ADD_QGIS_TEST(gdalprovidertest testqgsgdalprovider.cpp)

#############################################################
# WCS public servers test:
@@ -0,0 +1,107 @@
/***************************************************************************
testqgsgdalprovider.cpp
--------------------------------------
Date : March 2015
Copyright : (C) 2015 by Nyall Dawson
Email : nyall.dawson@gmail.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 <QtTest/QtTest>
#include <QObject>
#include <QString>
#include <QStringList>
#include <QObject>
#include <QApplication>
#include <QFileInfo>
#include <QDir>

//qgis includes...
#include <qgis.h>
#include <qgsapplication.h>
#include <qgsproviderregistry.h>
#include <qgsrasterdataprovider.h>
#include <qgsrectangle.h>

/** \ingroup UnitTests
* This is a unit test for the gdal provider
*/
class TestQgsGdalProvider : 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 scaleDataType(); //test resultant data types for int raster with float scale (#11573)
void warpedVrt(); //test loading raster which requires a warped vrt

private:
QString mTestDataDir;
QString mReport;
};

//runs before all tests
void TestQgsGdalProvider::initTestCase()
{
// init QGIS's paths - true means that all path will be inited from prefix
QgsApplication::init();
QgsApplication::initQgis();

mTestDataDir = QString( TEST_DATA_DIR ) + QDir::separator(); //defined in CmakeLists.txt
mReport = "<h1>GDAL Provider Tests</h1>\n";
}

//runs after all tests
void TestQgsGdalProvider::cleanupTestCase()
{
QgsApplication::exitQgis();
QString myReportFile = QDir::tempPath() + QDir::separator() + "qgistest.html";
QFile myFile( myReportFile );
if ( myFile.open( QIODevice::WriteOnly | QIODevice::Append ) )
{
QTextStream myQTextStream( &myFile );
myQTextStream << mReport;
myFile.close();
}
}

void TestQgsGdalProvider::scaleDataType()
{
QString rasterWithOffset = QString( TEST_DATA_DIR ) + QDir::separator() + "int_raster_with_scale.tif";
QgsDataProvider* provider = QgsProviderRegistry::instance()->provider( "gdal", rasterWithOffset );
QgsRasterDataProvider* rp = dynamic_cast< QgsRasterDataProvider* >( provider );
QVERIFY( rp );
//raster is an integer data type, but has a scale < 1, so data type must be float
QCOMPARE( rp->dataType( 1 ), QGis::Float32 );
QCOMPARE( rp->srcDataType( 1 ), QGis::Float32 );
}

void TestQgsGdalProvider::warpedVrt()
{
QString raster = QString( TEST_DATA_DIR ) + QDir::separator() + "requires_warped_vrt.tif";
QgsDataProvider* provider = QgsProviderRegistry::instance()->provider( "gdal", raster );
QgsRasterDataProvider* rp = dynamic_cast< QgsRasterDataProvider* >( provider );
QVERIFY( rp );

qDebug() << "x min: " << rp->extent().xMinimum();
qDebug() << "x max: " << rp->extent().xMaximum();
qDebug() << "y min: " << rp->extent().yMinimum();
qDebug() << "y max: " << rp->extent().yMaximum();

QVERIFY( qgsDoubleNear( rp->extent().xMinimum(), 2058589, 1 ) );
QVERIFY( qgsDoubleNear( rp->extent().xMaximum(), 3118999, 1 ) );
QVERIFY( qgsDoubleNear( rp->extent().yMinimum(), 2281355, 1 ) );
QVERIFY( qgsDoubleNear( rp->extent().yMaximum(), 3129683, 1 ) );
}

QTEST_MAIN( TestQgsGdalProvider )
#include "testqgsgdalprovider.moc"
Binary file not shown.
@@ -0,0 +1,30 @@
<PAMDataset>
<Metadata>
<MDI key="AOD Source">MODIS (MOD08_D3)</MDI>
<MDI key="AOD Value">0.069</MDI>
<MDI key="GIPPY Version">1.0.2</MDI>
<MDI key="GIPS Version">0.7.1</MDI>
<MDI key="GIPS-landsat Version">0.9.0</MDI>
</Metadata>
<PAMRasterBand band="1">
<Description>ndvi</Description>
<UnitType>other</UnitType>
<Scale>9.999999747378752e-05</Scale>
<Histograms>
<HistItem>
<HistMin>7091</HistMin>
<HistMax>8573</HistMax>
<BucketCount>2</BucketCount>
<IncludeOutOfRange>0</IncludeOutOfRange>
<Approximate>0</Approximate>
<HistCounts>23|33</HistCounts>
</HistItem>
</Histograms>
<Metadata>
<MDI key="STATISTICS_MAXIMUM">8326</MDI>
<MDI key="STATISTICS_MEAN">7873.3214285714</MDI>
<MDI key="STATISTICS_MINIMUM">7338</MDI>
<MDI key="STATISTICS_STDDEV">261.16183455194</MDI>
</Metadata>
</PAMRasterBand>
</PAMDataset>
Binary file not shown.

0 comments on commit cafc722

Please sign in to comment.
You can’t perform that action at this time.