New feature to select all objects in same container

src/blenderbim/test/bim/feature/spatial.feature

@@ -53,3 +53,16 @@ Scenario: Select container
     And I press "bim.assign_container(structure={site})"
     When I press "bim.select_container"
     Then nothing happens
+
+Scenario: Select similar container
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And the object "IfcWall/Cube" is selected
+    And I press "bim.enable_editing_container"
+    And the variable "site" is "tool.Ifc.get().by_type('IfcSite')[0].id()"
+    And I press "bim.assign_container(structure={site})"
+    When I press "bim.select_similar_container"
+    Then nothing happens

src/blenderbim/test/core/test_spatial.py

@@ -103,3 +103,13 @@ class TestSelectContainer:
         ifc.get_object("container").should_be_called().will_return("container_obj")
         spatial.set_active_object("container_obj").should_be_called()
         subject.select_container(ifc, spatial, obj="obj")
+
+
+class TestSelectSimilarContainer:
+    def test_run(self, ifc, spatial):
+        ifc.get_entity("obj").should_be_called().will_return("element")
+        spatial.get_container("element").should_be_called().will_return("container")
+        spatial.get_decomposed_elements("container").should_be_called().will_return(["contained_element"])
+        ifc.get_object("contained_element").should_be_called().will_return("contained_obj")
+        spatial.select_object("contained_obj").should_be_called()
+        subject.select_similar_container(ifc, spatial, obj="obj")

src/blenderbim/test/tool/test_spatial.py

@@ -128,6 +128,15 @@ class TestGetContainer(NewFile):
         assert subject.get_container(wall) == site
 
 
+class TestGetDecomposedElements(NewFile):
+    def test_run(self):
+        ifc = ifcopenshell.file()
+        site = ifc.createIfcSite()
+        wall = ifc.createIfcWall()
+        ifcopenshell.api.run("spatial.assign_container", ifc, product=wall, relating_structure=site)
+        assert subject.get_decomposed_elements(site) == [wall]
+
+
 class TestGetObjectMatrix(NewFile):
     def test_run(self):
         obj = bpy.data.objects.new("Object", None)
@@ -192,6 +201,14 @@ class TestRunSpatialAssignContainer(NewFile):
         pass
 
 
+class TestSelectObject(NewFile):
+    def test_run(self):
+        obj = bpy.data.objects.new("Object", None)
+        bpy.context.scene.collection.objects.link(obj)
+        subject.select_object(obj)
+        assert obj in bpy.context.selected_objects
+
+
 class TestSetActiveObject(NewFile):
     def test_run(self):
         obj = bpy.data.objects.new("Object", None)