Add tests for rotated map

Thanks Nyall for initial template. Include tests for raster layers, SVG and simple markers with data-defined or fixed rotation, parallel line labels.
qgis · Feb 20, 2015 · 10d2ce4 · 10d2ce4
1 parent e09437b
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diff --git a/tests/src/core/CMakeLists.txt b/tests/src/core/CMakeLists.txt
@@ -140,6 +140,7 @@ ADD_QGIS_TEST(invertedpolygontest testqgsinvertedpolygonrenderer.cpp )
 ADD_QGIS_TEST(colorschemeregistry testqgscolorschemeregistry.cpp)
 ADD_QGIS_TEST(colorscheme testqgscolorscheme.cpp)
 ADD_QGIS_TEST(maptopixeltest testqgsmaptopixel.cpp)
+ADD_QGIS_TEST(maprotationtest testqgsmaprotation.cpp)
 ADD_QGIS_TEST(mapsettingstest testqgsmapsettings.cpp)
 ADD_QGIS_TEST(networkcontentfetcher testqgsnetworkcontentfetcher.cpp )
 ADD_QGIS_TEST(legendrenderertest testqgslegendrenderer.cpp )

diff --git a/tests/src/core/testqgsmaprotation.cpp b/tests/src/core/testqgsmaprotation.cpp
@@ -0,0 +1,219 @@
+/***************************************************************************
+     testqgsmaprotation.cpp
+     --------------------------------------
+    Date                 : Feb 18  2015
+    Copyright            : (C) 2015 by Sandro Santilli
+    Email                : strk@keybit.net
+ ***************************************************************************
+ *                                                                         *
+ *   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 <QApplication>
+#include <QFileInfo>
+#include <QDir>
+
+//qgis includes...
+#include "qgsrasterlayer.h"
+#include "qgsvectorlayer.h"
+#include "qgsmultibandcolorrenderer.h"
+#include "qgsmaplayerregistry.h"
+#include "qgsapplication.h"
+#include "qgsmaprenderer.h"
+#include "qgsmaplayerregistry.h"
+
+//qgis unit test includes
+#include <qgsrenderchecker.h>
+
+/** \ingroup UnitTests
+ * This is a unit test for the map rotation feature
+ */
+class TestQgsMapRotation : public QObject
+{
+    Q_OBJECT
+  public:
+    TestQgsMapRotation()
+        : mRasterLayer( 0 )
+        , mPointsLayer( 0 )
+        , mLinesLayer( 0 )
+    {
+      mTestDataDir = QString( TEST_DATA_DIR ) + QDir::separator();
+    }
+
+  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 rasterLayer();
+    void pointsLayer();
+    void linesLayer();
+    // TODO: polygonsLayer
+
+  private:
+    bool render( QString theFileName );
+
+    QString mTestDataDir;
+    QgsRasterLayer * mRasterLayer;
+    QgsMapLayer * mPointsLayer;
+    QgsMapLayer * mLinesLayer;
+    QgsMapSettings mMapSettings;
+    QString mReport;
+};
+
+//runs before all tests
+void TestQgsMapRotation::initTestCase()
+{
+  // init QGIS's paths - true means that all path will be inited from prefix
+  QgsApplication::init();
+  QgsApplication::initQgis();
+
+  QList<QgsMapLayer *> mapLayers;
+
+  //create a raster layer that will be used in all tests...
+  QFileInfo rasterFileInfo( mTestDataDir + "rgb256x256.png" );
+  mRasterLayer = new QgsRasterLayer( rasterFileInfo.filePath(),
+                                     rasterFileInfo.completeBaseName() );
+  QgsMultiBandColorRenderer* rasterRenderer = new QgsMultiBandColorRenderer( mRasterLayer->dataProvider(), 1, 2, 3 );
+  mRasterLayer->setRenderer( rasterRenderer );
+  mapLayers << mRasterLayer;
+
+  //create a point layer that will be used in all tests...
+  QString myPointsFileName = mTestDataDir + "points.shp";
+  QFileInfo myPointFileInfo( myPointsFileName );
+  mPointsLayer = new QgsVectorLayer( myPointFileInfo.filePath(),
+                                     myPointFileInfo.completeBaseName(), "ogr" );
+  mapLayers << mPointsLayer;
+
+  //create a line layer that will be used in all tests...
+  QString myLinesFileName = mTestDataDir + "lines_cardinals.shp";
+  QFileInfo myLinesFileInfo( myLinesFileName );
+  mLinesLayer = new QgsVectorLayer( myLinesFileInfo.filePath(),
+                                    myLinesFileInfo.completeBaseName(), "ogr" );
+  mapLayers << mLinesLayer;
+
+  // Register all layers with the registry
+  QgsMapLayerRegistry::instance()->addMapLayers(mapLayers);
+
+  // This is needed to correctly set rotation center,
+  // the actual size doesn't matter as QgsRenderChecker will
+  // re-set it to the size of the expected image
+  mMapSettings.setOutputSize( QSize(256,256) );
+
+  mReport += "<h1>Map Rotation Tests</h1>\n";
+}
+
+//runs after all tests
+void TestQgsMapRotation::cleanupTestCase()
+{
+  QgsApplication::exitQgis();
+
+  // TODO: delete layers (or is it done by 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 TestQgsMapRotation::rasterLayer()
+{
+  mMapSettings.setLayers( QStringList() << mRasterLayer->id() );
+  mMapSettings.setExtent( mRasterLayer->extent() );
+  mMapSettings.setRotation( 45 );
+  // This ensures rotated image is all visible by tweaking scale
+  mMapSettings.setExtent( mMapSettings.visibleExtent() );
+  QVERIFY( render( "raster+45" ) );
+
+  mMapSettings.setRotation( -45 );
+  QVERIFY( render( "raster-45" ) );
+}
+
+void TestQgsMapRotation::pointsLayer()
+{
+  mMapSettings.setLayers( QStringList() << mPointsLayer->id() );
+
+  // SVG points, fixed (no) rotation
+  QString qml = mTestDataDir + "points.qml";
+  bool success = false;
+  mPointsLayer->loadNamedStyle( qml, success );
+  QVERIFY( success );
+  mMapSettings.setExtent( QgsRectangle(-105.5,37,-97.5,45) );
+  mMapSettings.setRotation( -60 );
+  QVERIFY( render( "svgpoints-60" ) );
+
+  // SVG points, data defined rotation
+  qml = mTestDataDir + "points_single_symbol_datadefined_rotation.qml";
+  success = false;
+  mPointsLayer->loadNamedStyle( qml, success );
+  QVERIFY( success );
+  mMapSettings.setExtent( QgsRectangle(-116,33,-107,42) );
+  mMapSettings.setRotation( 90 );
+  QVERIFY( render( "svgpoints-datadefined+90" ) );
+
+  // TODO: SVG points, fixed (defined) rotation ?
+
+  // Simple points, data defined rotation
+  qml = mTestDataDir + "points_single_symbol.qml";
+  success = false;
+  mPointsLayer->loadNamedStyle( qml, success );
+  QVERIFY( success );
+  mMapSettings.setExtent( QgsRectangle(-116,33,-107,42) );
+  mMapSettings.setRotation( 90 );
+  QVERIFY( render( "simplepoints-datadefined+90" ) );
+
+  // Simple points, fixed (no) rotation
+  qml = mTestDataDir + "points_graduated_symbol.qml";
+  success = false;
+  mPointsLayer->loadNamedStyle( qml, success );
+  QVERIFY( success );
+  mMapSettings.setExtent( QgsRectangle(-108,26,-100,34) );
+  mMapSettings.setRotation( 30 );
+  QVERIFY( render( "simplepoints+30" ) );
+
+  // TODO: simple points, fixed (defined) rotation ?
+}
+
+void TestQgsMapRotation::linesLayer()
+{
+  mMapSettings.setLayers( QStringList() << mLinesLayer->id() );
+
+  // Arrowed line with parallel labels
+  QString qml = mTestDataDir + "lines_cardinals_arrowed_parallel_label.qml";
+  bool success = false;
+  mLinesLayer->loadNamedStyle( qml, success );
+  QVERIFY( success );
+  mMapSettings.setExtent( mLinesLayer->extent() ); //QgsRectangle(-150,-150,150,150) );
+  mMapSettings.setRotation( 45 );
+  QVERIFY( render( "lines-parallel-label+45" ) );
+
+  // TODO: horizontal labels
+  // TODO: curved labels
+}
+
+bool TestQgsMapRotation::render( QString theTestType )
+{
+  mReport += "<h2>" + theTestType + "</h2>\n";
+  QgsRenderChecker checker;
+  checker.setControlPathPrefix("maprotation");
+  checker.setControlName( "expected_" + theTestType );
+  checker.setMapSettings( mMapSettings );
+  bool result = checker.runTest( theTestType );
+  mReport += "\n\n\n" + checker.report();
+  return result;
+}
+
+QTEST_MAIN( TestQgsMapRotation )
+#include "testqgsmaprotation.moc"
diff --git a/...protation/expected_lines-parallel-label+45/expected_lines-parallel-label+45.png b/...protation/expected_lines-parallel-label+45/expected_lines-parallel-label+45.png
diff --git a/...tion/expected_lines-parallel-label+45/expected_lines-parallel-label+45_mask.png b/...tion/expected_lines-parallel-label+45/expected_lines-parallel-label+45_mask.png
diff --git a/...s/testdata/control_images/maprotation/expected_raster+45/expected_raster+45.png b/...s/testdata/control_images/maprotation/expected_raster+45/expected_raster+45.png
diff --git a/...s/testdata/control_images/maprotation/expected_raster-45/expected_raster-45.png b/...s/testdata/control_images/maprotation/expected_raster-45/expected_raster-45.png
diff --git a/...ontrol_images/maprotation/expected_simplepoints+30/expected_simplepoints+30.png b/...ontrol_images/maprotation/expected_simplepoints+30/expected_simplepoints+30.png
diff --git a/...l_images/maprotation/expected_simplepoints+30/expected_simplepoints+30_mask.png b/...l_images/maprotation/expected_simplepoints+30/expected_simplepoints+30_mask.png
diff --git a/...n/expected_simplepoints-datadefined+90/expected_simplepoints-datadefined+90.png b/...n/expected_simplepoints-datadefined+90/expected_simplepoints-datadefined+90.png
diff --git a/...ected_simplepoints-datadefined+90/expected_simplepoints-datadefined+90_mask.png b/...ected_simplepoints-datadefined+90/expected_simplepoints-datadefined+90_mask.png
diff --git a/...data/control_images/maprotation/expected_svgpoints-60/expected_svgpoints-60.png b/...data/control_images/maprotation/expected_svgpoints-60/expected_svgpoints-60.png
diff --git a/...control_images/maprotation/expected_svgpoints-60/expected_svgpoints-60_mask.png b/...control_images/maprotation/expected_svgpoints-60/expected_svgpoints-60_mask.png
diff --git a/...otation/expected_svgpoints-datadefined+90/expected_svgpoints-datadefined+90.png b/...otation/expected_svgpoints-datadefined+90/expected_svgpoints-datadefined+90.png
diff --git a/...on/expected_svgpoints-datadefined+90/expected_svgpoints-datadefined+90_mask.png b/...on/expected_svgpoints-datadefined+90/expected_svgpoints-datadefined+90_mask.png
diff --git a/tests/testdata/lines_cardinals.dbf b/tests/testdata/lines_cardinals.dbf
diff --git a/tests/testdata/lines_cardinals.prj b/tests/testdata/lines_cardinals.prj
@@ -0,0 +1 @@
+GEOGCS["WGS 84",DATUM["unknown",SPHEROID["WGS84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]]
diff --git a/tests/testdata/lines_cardinals.shp b/tests/testdata/lines_cardinals.shp
diff --git a/tests/testdata/lines_cardinals.shx b/tests/testdata/lines_cardinals.shx