When assigning types, your preference of dynamic voids are now preserved.

src/blenderbim/test/core/bootstrap.py

@@ -77,6 +77,13 @@ def owner():
     prophet.verify()
 
 
+@pytest.fixture
+def type():
+    prophet = Prophecy(blenderbim.core.tool.Type)
+    yield prophet
+    prophet.verify()
+
+
 @pytest.fixture
 def voider():
     prophet = Prophecy(blenderbim.core.tool.Voider)

src/blenderbim/test/core/test_geometry.py

@@ -179,7 +179,7 @@ class TestAddRepresentation:
 
 
 class TestSwitchRepresentation:
-    def test_run(self, ifc, geometry, style, surveyor):
+    def test_switching_to_a_freshly_reloaded_representation(self, geometry):
         geometry.resolve_mapped_representation("mapped_rep").should_be_called().will_return("representation")
         geometry.get_representation_data("representation").should_be_called().will_return("data")
         geometry.import_representation(
@@ -199,3 +199,32 @@ class TestSwitchRepresentation:
             enable_dynamic_voids=True,
             is_global=True,
         )
+
+    def test_switching_to_an_existing_representation(self, geometry):
+        geometry.resolve_mapped_representation("mapped_rep").should_be_called().will_return("representation")
+        geometry.get_representation_data("representation").should_be_called().will_return("data")
+        geometry.change_object_data("obj", "data", is_global=True).should_be_called()
+        geometry.is_body_representation("representation").should_be_called().will_return(True)
+        geometry.create_dynamic_voids("obj").should_be_called()
+        subject.switch_representation(
+            geometry,
+            obj="obj",
+            representation="mapped_rep",
+            should_reload=False,
+            enable_dynamic_voids=True,
+            is_global=True,
+        )
+
+    def test_switching_to_non_dynamic_baked_voids(self, geometry):
+        geometry.resolve_mapped_representation("mapped_rep").should_be_called().will_return("representation")
+        geometry.get_representation_data("representation").should_be_called().will_return("data")
+        geometry.change_object_data("obj", "data", is_global=False).should_be_called()
+        geometry.clear_dynamic_voids("obj").should_be_called()
+        subject.switch_representation(
+            geometry,
+            obj="obj",
+            representation="mapped_rep",
+            should_reload=False,
+            enable_dynamic_voids=False,
+            is_global=False,
+        )

src/blenderbim/test/core/test_type.py

@@ -0,0 +1,61 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on 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 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import blenderbim.core.type as subject
+from test.core.bootstrap import ifc, geometry, type
+
+
+class TestAssignType:
+    def test_assigning_and_switching_preferably_to_a_body_representation(self, ifc, geometry, type):
+        ifc.run("type.assign_type", related_object="element", relating_type="type").should_be_called()
+        type.get_body_representation("element").should_be_called().will_return("mapped_rep")
+        ifc.get_object("element").should_be_called().will_return("obj")
+        type.has_dynamic_voids("obj").should_be_called().will_return(False)
+
+        geometry.resolve_mapped_representation("mapped_rep").should_be_called().will_return("representation")
+        geometry.get_representation_data("representation").should_be_called().will_return("data")
+        geometry.change_object_data("obj", "data", is_global=False).should_be_called()
+        geometry.clear_dynamic_voids("obj").should_be_called()
+
+        type.disable_editing("obj").should_be_called()
+
+        subject.assign_type(ifc, geometry, type, element="element", type="type")
+
+    def test_assigning_and_switching_to_any_representation_as_a_fallback(self, ifc, geometry, type):
+        ifc.run("type.assign_type", related_object="element", relating_type="type").should_be_called()
+        type.get_body_representation("element").should_be_called().will_return(None)
+        type.get_any_representation("element").should_be_called().will_return("mapped_rep")
+        ifc.get_object("element").should_be_called().will_return("obj")
+        type.has_dynamic_voids("obj").should_be_called().will_return(False)
+
+        geometry.resolve_mapped_representation("mapped_rep").should_be_called().will_return("representation")
+        geometry.get_representation_data("representation").should_be_called().will_return("data")
+        geometry.change_object_data("obj", "data", is_global=False).should_be_called()
+        geometry.clear_dynamic_voids("obj").should_be_called()
+
+        type.disable_editing("obj").should_be_called()
+
+        subject.assign_type(ifc, geometry, type, element="element", type="type")
+
+    def test_assigning_and_not_changing_representation_if_not_available(self, ifc, type):
+        ifc.run("type.assign_type", related_object="element", relating_type="type").should_be_called()
+        type.get_body_representation("element").should_be_called().will_return(None)
+        type.get_any_representation("element").should_be_called().will_return(None)
+        ifc.get_object("element").should_be_called().will_return("obj")
+        type.disable_editing("obj").should_be_called()
+        subject.assign_type(ifc, geometry, type, element="element", type="type")