add test for layer visibility in embedded group

tests/src/python/test_qgsproject.py

@@ -196,15 +196,13 @@ class TestQgsProject(unittest.TestCase):
         prj.read(prj_path)
 
         layer_tree_group = prj.layerTreeRoot()
-        layers_ids = layer_tree_group.findLayerIds()
-
-        layers_names = []
-        for layer_id in layers_ids:
+        for layer_id in layer_tree_group.findLayerIds():
             name = prj.mapLayer(layer_id).name()
-            layers_names.append(name)
-
-        expected = ['polys', 'lines']
-        self.assertEqual(sorted(layers_names), sorted(expected))
+            self.assertTrue(name in ['polys', 'lines'])
+            if name == 'polys':
+                self.assertTrue(layer_tree_group.findLayer(layer_id).itemVisibilityChecked())
+            elif name == 'lines':
+                self.assertFalse(layer_tree_group.findLayer(layer_id).itemVisibilityChecked())
 
     def testInstance(self):
         """ test retrieving global instance """

tests/testdata/embedded_groups/project2.qgs

@@ -1,32 +1,47 @@
 <!DOCTYPE qgis PUBLIC 'http://mrcc.com/qgis.dtd' 'SYSTEM'>
-<qgis projectname="" version="2.99.0-Master">
+<qgis projectname="" version="3.7.0-Master">
+  <homePath path=""/>
   <title></title>
   <autotransaction active="0"/>
   <evaluateDefaultValues active="0"/>
-  <layer-tree-group checked="Qt::Checked" name="" expanded="1">
+  <trust active="0"/>
+  <projectCrs>
+    <spatialrefsys>
+      <proj4>+proj=longlat +datum=WGS84 +no_defs</proj4>
+      <srsid>3452</srsid>
+      <srid>4326</srid>
+      <authid>EPSG:4326</authid>
+      <description>WGS 84</description>
+      <projectionacronym>longlat</projectionacronym>
+      <ellipsoidacronym>WGS84</ellipsoidacronym>
+      <geographicflag>true</geographicflag>
+    </spatialrefsys>
+  </projectCrs>
+  <layer-tree-group>
     <customproperties/>
-    <layer-tree-group checked="Qt::Checked" name="group1" expanded="1">
+    <layer-tree-group checked="Qt::Checked" expanded="1" name="group1">
       <customproperties>
         <property key="embedded" value="1"/>
-        <property key="embedded-invisible-layers"/>
+        <property key="embedded-invisible-layers" value="lines20170310142652255"/>
         <property key="embedded_project" value="./project1.qgs"/>
       </customproperties>
     </layer-tree-group>
+    <custom-order enabled="0"/>
   </layer-tree-group>
-  <snapping-settings type="1" mode="2" unit="2" enabled="0" tolerance="0" intersection-snapping="0">
+  <snapping-settings enabled="0" tolerance="0" intersection-snapping="0" type="1" mode="2" unit="2">
     <individual-layer-settings>
-      <layer-setting type="1" id="polys20170310142652234" enabled="0" tolerance="0" units="2"/>
-      <layer-setting type="1" id="lines20170310142652255" enabled="0" tolerance="0" units="2"/>
+      <layer-setting enabled="0" tolerance="0" units="2" id="polys20170310142652234" type="1"/>
+      <layer-setting enabled="0" tolerance="0" units="2" id="lines20170310142652255" type="1"/>
     </individual-layer-settings>
   </snapping-settings>
   <relations/>
-  <mapcanvas>
+  <mapcanvas annotationsVisible="1" name="theMapCanvas">
     <units>degrees</units>
     <extent>
-      <xmin>-119.83786762594776576</xmin>
-      <ymin>22.62025663373795226</ymin>
-      <xmax>-81.40764418773530053</xmax>
-      <ymax>47.3141218219175812</ymax>
+      <xmin>-116.65168838681026386</xmin>
+      <ymin>15.75771673405715845</ymin>
+      <xmax>-78.22146494859779864</xmax>
+      <ymax>40.45158192223678384</ymax>
     </extent>
     <rotation>0</rotation>
     <destinationsrs>
@@ -42,51 +57,75 @@
       </spatialrefsys>
     </destinationsrs>
     <rendermaptile>0</rendermaptile>
-    <layer_coordinate_transform_info/>
+    <expressionContextScope/>
   </mapcanvas>
-  <layer-tree-canvas>
-    <custom-order enabled="0">
-      <item>polys20170310142652234</item>
-      <item>lines20170310142652255</item>
-    </custom-order>
-  </layer-tree-canvas>
   <legend updateDrawingOrder="true">
-    <legendgroup project="./project1.qgs" embedded="1" checked="Qt::Checked" name="group1" open="true"/>
+    <legendgroup embedded="1" open="true" checked="Qt::Checked" project="./project1.qgs" name="group1"/>
   </legend>
+  <mapViewDocks/>
   <projectlayers/>
+  <layerorder>
+    <layer id="polys20170310142652234"/>
+    <layer id="lines20170310142652255"/>
+  </layerorder>
   <properties>
     <Gui>
+      <CanvasColorBluePart type="int">255</CanvasColorBluePart>
+      <CanvasColorGreenPart type="int">255</CanvasColorGreenPart>
       <CanvasColorRedPart type="int">255</CanvasColorRedPart>
       <SelectionColorAlphaPart type="int">255</SelectionColorAlphaPart>
-      <CanvasColorGreenPart type="int">255</CanvasColorGreenPart>
-      <SelectionColorGreenPart type="int">255</SelectionColorGreenPart>
       <SelectionColorBluePart type="int">0</SelectionColorBluePart>
-      <CanvasColorBluePart type="int">255</CanvasColorBluePart>
+      <SelectionColorGreenPart type="int">255</SelectionColorGreenPart>
       <SelectionColorRedPart type="int">255</SelectionColorRedPart>
     </Gui>
-    <PositionPrecision>
-      <DecimalPlaces type="int">2</DecimalPlaces>
-      <Automatic type="bool">true</Automatic>
-    </PositionPrecision>
-    <Paths>
-      <Absolute type="bool">false</Absolute>
-    </Paths>
-    <Legend>
-      <filterByMap type="bool">false</filterByMap>
-    </Legend>
     <Identify>
       <disabledLayers type="QStringList"/>
     </Identify>
-    <SpatialRefSys>
-      <ProjectCRSID type="int">3452</ProjectCRSID>
-      <ProjectCRSProj4String type="QString">+proj=longlat +datum=WGS84 +no_defs</ProjectCRSProj4String>
-      <ProjectCrs type="QString">EPSG:4326</ProjectCrs>
-    </SpatialRefSys>
+    <Legend>
+      <filterByMap type="bool">false</filterByMap>
+    </Legend>
     <Measurement>
       <AreaUnits type="QString">m2</AreaUnits>
       <DistanceUnits type="QString">meters</DistanceUnits>
     </Measurement>
+    <PAL>
+      <CandidatesLine type="int">50</CandidatesLine>
+      <CandidatesPoint type="int">16</CandidatesPoint>
+      <CandidatesPolygon type="int">30</CandidatesPolygon>
+      <DrawRectOnly type="bool">false</DrawRectOnly>
+      <SearchMethod type="int">0</SearchMethod>
+      <ShowingAllLabels type="bool">false</ShowingAllLabels>
+      <ShowingCandidates type="bool">false</ShowingCandidates>
+      <ShowingPartialsLabels type="bool">true</ShowingPartialsLabels>
+      <TextFormat type="int">0</TextFormat>
+    </PAL>
+    <Paths>
+      <Absolute type="bool">false</Absolute>
+    </Paths>
+    <PositionPrecision>
+      <Automatic type="bool">true</Automatic>
+      <DecimalPlaces type="int">2</DecimalPlaces>
+    </PositionPrecision>
+    <SpatialRefSys>
+      <ProjectCRSID type="int">3452</ProjectCRSID>
+      <ProjectCRSProj4String type="QString">+proj=longlat +datum=WGS84 +no_defs</ProjectCRSProj4String>
+      <ProjectCrs type="QString">EPSG:4326</ProjectCrs>
+      <ProjectionsEnabled type="int">1</ProjectionsEnabled>
+    </SpatialRefSys>
   </properties>
   <visibility-presets/>
+  <transformContext/>
+  <projectMetadata>
+    <identifier></identifier>
+    <parentidentifier></parentidentifier>
+    <language></language>
+    <type></type>
+    <title></title>
+    <abstract></abstract>
+    <links/>
+    <author></author>
+    <creation></creation>
+  </projectMetadata>
   <Annotations/>
+  <Layouts/>
 </qgis>