system.unassign_system - support batching #4474

src/ifcopenshell-python/test/api/system/test_unassign_system.py

@@ -0,0 +1,40 @@
+# 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 pytest
+import test.bootstrap
+import ifcopenshell.api
+import ifcopenshell.util.system
+
+
+class TestUnassignSystem(test.bootstrap.IFC4):
+    def test_unassign_system(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcFlowSegment")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcFlowSegment")
+        element3 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcFlowSegment")
+        system = ifcopenshell.api.run("system.add_system", self.file)
+        ifcopenshell.api.run("system.assign_system", self.file, products=[element, element2, element3], system=system)
+        ifcopenshell.api.run("system.unassign_system", self.file, products=[element2, element3], system=system)
+        assert ifcopenshell.util.system.get_system_elements(system) == [element]
+
+        ifcopenshell.api.run("system.unassign_system", self.file, products=[element], system=system)
+        assert ifcopenshell.util.system.get_system_elements(system) == []
+
+
+class TestUnassignSystemIFC2X3(test.bootstrap.IFC2X3, TestUnassignSystem):
+    pass

src/ifcopenshell-python/test/api/test_api.py

@@ -19,6 +19,7 @@
 import test.bootstrap
 import ifcopenshell.api
 import ifcopenshell.util.element
+import ifcopenshell.util.system
 from datetime import datetime
 
 
@@ -151,3 +152,15 @@ class TestTemporarySupportForDeprecatedAPIArguments(test.bootstrap.IFC4):
         rel = rels[0]
         assert rel.RelatingGroup == system
         assert rel.RelatedObjects == (element,)
+
+    @deprecation_check
+    def test_unassign_system(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcFlowSegment")
+        element2 = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcFlowSegment")
+        system = ifcopenshell.api.run("system.add_system", self.file)
+        ifcopenshell.api.run("system.assign_system", self.file, products=[element, element2], system=system)
+        ifcopenshell.api.run("system.unassign_system", self.file, product=element, system=system)
+        assert ifcopenshell.util.system.get_system_elements(system) == [element2]
+
+        ifcopenshell.api.run("system.unassign_system", self.file, product=element2, system=system)
+        assert ifcopenshell.util.system.get_system_elements(system) == []