Fix bug where an added default material was not linked and auto synced.

src/blenderbim/test/bim/feature/material.feature

@@ -6,7 +6,24 @@ Scenario: Add default material
     When I press "bim.add_default_material"
     Then the material "Default" exists
 
-Scenario: Unlink object
+Scenario: Add material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I add a material
+    When I press "bim.add_material"
+    Then the material "Material" is an IFC material
+
+Scenario: Remove material
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I add a material
+    And I press "bim.add_material"
+    When I press "bim.remove_material"
+    Then the material "Material" is not an IFC material
+
+Scenario: Unlink material
     Given an empty IFC project
     And I add a cube
     And the object "Cube" is selected

src/blenderbim/test/bim/test_feature.py

@@ -367,6 +367,12 @@ def the_object_name_is_not_an_ifc_element(name):
     assert id != 0, f"The ID is {id}"
 
 
+@then(parsers.parse('the material "{name}" is an IFC material'))
+def the_material_name_is_not_an_ifc_material(name):
+    id = the_material_name_exists(name).BIMObjectProperties.ifc_definition_id
+    assert id != 0, f"The ID is {id}"
+
+
 @then(parsers.parse('the material "{name}" is not an IFC material'))
 def the_material_name_is_not_an_ifc_material(name):
     id = the_material_name_exists(name).BIMObjectProperties.ifc_definition_id

src/blenderbim/test/core/test_material.py

@@ -21,14 +21,14 @@ from test.core.bootstrap import ifc, material
 
 
 class TestUnlinkMaterial:
-    def test_run(self, material):
-        material.unlink("obj").should_be_called()
-        subject.unlink_material(material, obj="obj")
+    def test_run(self, ifc):
+        ifc.unlink(obj="obj").should_be_called()
+        subject.unlink_material(ifc, obj="obj")
 
 
 class TestAddDefaultMaterial:
     def test_run(self, ifc, material):
         material.add_default_material_object().should_be_called().will_return("obj")
         ifc.run("material.add_material", name="Default").should_be_called().will_return("material")
-        material.link("material", "obj").should_be_called()
+        ifc.link("material", "obj").should_be_called()
         assert subject.add_default_material(ifc, material) == "obj"

src/blenderbim/test/tool/test_ifc.py

@@ -101,7 +101,7 @@ class TestGetObject(test.bim.bootstrap.NewFile):
 
 
 class TestLink(test.bim.bootstrap.NewFile):
-    def test_run(self):
+    def test_link_an_object(self):
         ifc = ifcopenshell.file()
         subject.set(ifc)
         element = ifc.createIfcWall()
@@ -110,9 +110,18 @@ class TestLink(test.bim.bootstrap.NewFile):
         assert subject.get_entity(obj) == element
         assert subject.get_object(element) == obj
 
+    def test_link_a_material(self):
+        ifc = ifcopenshell.file()
+        subject.set(ifc)
+        element = ifc.createIfcMaterial()
+        obj = bpy.data.materials.new("Material")
+        subject.link(element, obj)
+        assert subject.get_entity(obj) == element
+        assert subject.get_object(element) == obj
+
 
 class TestUnlink(test.bim.bootstrap.NewFile):
-    def test_run(self):
+    def test_unlink_an_object(self):
         ifc = ifcopenshell.file()
         subject.set(ifc)
         element = ifc.createIfcWall()
@@ -122,6 +131,16 @@ class TestUnlink(test.bim.bootstrap.NewFile):
         assert subject.get_entity(obj) is None
         assert subject.get_object(element) is None
 
+    def test_unlink_a_material(self):
+        ifc = ifcopenshell.file()
+        subject.set(ifc)
+        element = ifc.createIfcMaterial()
+        obj = bpy.data.materials.new("Material")
+        subject.link(element, obj)
+        subject.unlink(element, obj)
+        assert subject.get_entity(obj) is None
+        assert subject.get_object(element) is None
+
     def test_unlinking_using_an_object(self):
         ifc = ifcopenshell.file()
         subject.set(ifc)

src/blenderbim/test/tool/test_material.py

@@ -34,22 +34,3 @@ class TestAddDefaultMaterialObject(NewFile):
         material = subject.add_default_material_object()
         assert isinstance(material, bpy.types.Material)
         assert material.name == "Default"
-
-
-class TestLink(NewFile):
-    def test_run(self):
-        obj = bpy.data.materials.new("Material")
-        ifc = ifcopenshell.file()
-        material = ifc.createIfcMaterial()
-        subject.link(material, obj)
-        assert obj.BIMObjectProperties.ifc_definition_id == material.id()
-
-
-class TestUnlink(NewFile):
-    def test_run(self):
-        obj = bpy.data.materials.new("Material")
-        ifc = ifcopenshell.file()
-        material = ifc.createIfcMaterial()
-        subject.link(material, obj)
-        subject.unlink(obj)
-        assert obj.BIMObjectProperties.ifc_definition_id == 0