[layout] Add map rendering to tests

tests/src/core/testqgscompositionconverter.cpp

@@ -26,6 +26,8 @@
 #include "qgsmultirenderchecker.h"
 #include "qgssettings.h"
 
+#include "qgsmultibandcolorrenderer.h"
+#include "qgsrasterlayer.h"
 
 #include "qgslayoutpagecollection.h"
 #include "qgslayoutitemlabel.h"
@@ -113,6 +115,8 @@ class TestQgsCompositionConverter: public QObject
 
 void TestQgsCompositionConverter::initTestCase()
 {
+  QgsApplication::init();
+  QgsApplication::initQgis();
   mReport = QStringLiteral( "<h1>Layout Tests</h1>\n" );
   QgsSettings settings;
   settings.setValue( QStringLiteral( "svg/searchPathsForSVG" ), QStringLiteral( TEST_DATA_DIR ) ) ;
@@ -337,9 +341,18 @@ void TestQgsCompositionConverter::importComposerTemplateMap()
   QgsLayoutItemMap *item = items.at( 0 );
   QVERIFY( item->isVisible() );
 
+  item->setLayers( project.mapLayers().values() );
+
+  for ( auto const &l : project.mapLayers().values() )
+  {
+    QVERIFY( l->isValid() );
+  }
+
   QgsLayoutItemMap *item1 = items.at( 1 );
   QVERIFY( item1->isVisible() );
   QCOMPARE( item1->opacity(), 0.78 );
+  item1->setLayers( project.mapLayers().values() );
+  item1->setExtent( QgsRectangle( -126.5731570061082038, -4.69162199770811128,  -88.56641716083402116, 69.08616711370645191 ) );
 
   // Check map ids
   QStringList mapUuids;
@@ -370,6 +383,7 @@ void TestQgsCompositionConverter::importComposerTemplateMap()
     QVERIFY( count > 0 );
   }
 
+
   checkRenderedImage( layout.get(), QTest::currentTestFunction(), 0 );
 
   qDeleteAll( items );
@@ -437,6 +451,7 @@ void TestQgsCompositionConverter::importComposerTemplate()
 
   QVERIFY( layout.get() );
   QCOMPARE( layout->pageCollection()->pageCount(), 2 );
+  QCOMPARE( layout->name(), QStringLiteral( "composer title" ) );
 
   // Check map ids
   QStringList mapUuids;

tests/testdata/layouts/sample_project.qgs

@@ -5,13 +5,13 @@
   <evaluateDefaultValues active="0"/>
   <layer-tree-group expanded="1" checked="Qt::Checked" name="">
     <customproperties/>
-    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="lines20171212162314640" source="C:/dev/QGIS/tests/testdata/lines.shp" name="lines">
+    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="lines20171212162314640" source="../lines.shp" name="lines">
       <customproperties/>
     </layer-tree-layer>
-    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="points20171212162310546" source="C:/dev/QGIS/tests/testdata/points.shp" name="points">
+    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="points20171212162310546" source="../points.shp" name="points">
       <customproperties/>
     </layer-tree-layer>
-    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="polys20171212162309844" source="C:/dev/QGIS/tests/testdata/polys.shp" name="polys">
+    <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="polys20171212162309844" source="../polys.shp" name="polys">
       <customproperties/>
     </layer-tree-layer>
   </layer-tree-group>
@@ -388,10 +388,10 @@
         </styles>
         <layer-tree-group expanded="1" checked="Qt::Checked" name="">
           <customproperties/>
-          <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="points20171212162310546" source="C:/dev/QGIS/tests/testdata/points.shp" name="points">
+          <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="points20171212162310546" source="../points.shp" name="points">
             <customproperties/>
           </layer-tree-layer>
-          <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="polys20171212162309844" source="C:/dev/QGIS/tests/testdata/polys.shp" name="polys">
+          <layer-tree-layer expanded="1" providerKey="ogr" checked="Qt::Checked" id="polys20171212162309844" source="../polys.shp" name="polys">
             <customproperties/>
           </layer-tree-layer>
         </layer-tree-group>
@@ -529,7 +529,7 @@
         </ComposerFrame>
         <customproperties/>
       </ComposerHtml>
-      <ComposerAttributeTableV2 vectorLayerName="points" source="0" showGrid="1" maxFeatures="30" resizeMode="0" filterFeatures="false" featureFilter="" emptyTableMode="1" wrapString="" wrapBehaviour="0" headerMode="1" backgroundColor="240,33,33,255" showEmptyRows="0" emptyTableMessage="" showOnlyVisibleFeatures="1" vectorLayer="points20171212162310546" vectorLayerSource="C:/dev/QGIS/tests/testdata/points.shp" composerMap="0" headerHAlignment="2" contentFontColor="115,115,115,255" headerFontColor="194,143,12,255" cellMargin="1.2" filterToAtlasIntersection="0" relationId="" gridStrokeWidth="0.7" gridColor="245,57,220,255" showUniqueRowsOnly="1" vectorLayerProvider="ogr">
+      <ComposerAttributeTableV2 vectorLayerName="points" source="0" showGrid="1" maxFeatures="30" resizeMode="0" filterFeatures="false" featureFilter="" emptyTableMode="1" wrapString="" wrapBehaviour="0" headerMode="1" backgroundColor="240,33,33,255" showEmptyRows="0" emptyTableMessage="" showOnlyVisibleFeatures="1" vectorLayer="points20171212162310546" vectorLayerSource="../points.shp" composerMap="0" headerHAlignment="2" contentFontColor="115,115,115,255" headerFontColor="194,143,12,255" cellMargin="1.2" filterToAtlasIntersection="0" relationId="" gridStrokeWidth="0.7" gridColor="245,57,220,255" showUniqueRowsOnly="1" vectorLayerProvider="ogr">
         <headerFontProperties description="MS Shell Dlg 2,8.25,-1,5,50,0,0,0,0,0" style=""/>
         <contentFontProperties description="MS Shell Dlg 2,8.25,-1,5,50,0,0,0,0,0" style=""/>
         <displayColumns>