group.unassign_group - support batching #4474

src/ifcopenshell-python/test/api/group/test_assign_group.py

@@ -0,0 +1,45 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2022 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import test.bootstrap
+import ifcopenshell.api
+
+
+class TestAssignGroup(test.bootstrap.IFC4):
+    def test_assign_group_for_multiple_elements(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        group = ifcopenshell.api.run("group.add_group", self.file)
+
+        # assign group for multiple elements
+        ifcopenshell.api.run("group.assign_group", self.file, products=[element, element2], group=group)
+        assert len(rels := self.file.by_type("IfcRelAssignsToGroup")) == 1
+        rel = rels[0]
+        assert rel.RelatingGroup == group
+        assert rel.RelatedObjects == (element, element2)
+
+    def test_reuse_existing_relationship(self):
+        self.test_assign_group_for_multiple_elements()
+        rel = self.file.by_type("IfcRelAssignsToGroup")[0]
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        group = self.file.by_type("IfcGroup")[0]
+        ifcopenshell.api.run("group.assign_group", self.file, products=[element], group=group)
+
+        assert len(self.file.by_type("IfcRelAssignsToGroup")) == 1
+        assert rel.RelatingGroup == group
+        assert set(rel.RelatedObjects) == set(self.file.by_type("IfcPump"))

src/ifcopenshell-python/test/api/group/test_unassign_group.py

@@ -0,0 +1,43 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2022 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of IfcOpenShell.
+#
+# IfcOpenShell is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# IfcOpenShell 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with IfcOpenShell.  If not, see <http://www.gnu.org/licenses/>.
+
+import test.bootstrap
+import ifcopenshell.api
+
+
+class TestAssignGroup(test.bootstrap.IFC4):
+    def test_unassignment(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        element3 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        group = ifcopenshell.api.run("group.add_group", self.file)
+        ifcopenshell.api.run("group.assign_group", self.file, products=[element, element2, element3], group=group)
+        ifcopenshell.api.run("group.unassign_group", self.file, products=[element2, element3], group=group)
+
+        assert len(rels := self.file.by_type("IfcRelAssignsToGroup")) == 1
+        rel = rels[0]
+        assert rel.RelatingGroup == group
+        assert rel.RelatedObjects == (element,)
+
+    def test_remove_relationship_unassigning_last_element(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcPump")
+        group = ifcopenshell.api.run("group.add_group", self.file)
+        ifcopenshell.api.run("group.assign_group", self.file, products=[element, element2], group=group)
+        ifcopenshell.api.run("group.unassign_group", self.file, products=[element, element2], group=group)
+        assert len(self.file.by_type("IfcRelAssignsToGroup")) == 0