New feature to unlink Blender materials and IFC materials

src/blenderbim/test/core/bootstrap.py

@@ -49,6 +49,13 @@ def context():
     prophet.verify()
 
 
+@pytest.fixture
+def material():
+    prophet = Prophecy(blenderbim.core.tool.Material)
+    yield prophet
+    prophet.verify()
+
+
 @pytest.fixture
 def owner():
     prophet = Prophecy(blenderbim.core.tool.Owner)

src/blenderbim/test/core/test_material.py

@@ -0,0 +1,26 @@
+# 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.material as subject
+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")