Selector now uses classmethods to make it easier for scriptwriters to use

src/ifcopenshell-python/test/util/test_selector.py

@@ -0,0 +1,47 @@
+# 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.selector as subject
+
+
+class TestSelector(test.bootstrap.IFC4):
+    def test_selecting_by_class(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSlab")
+        assert subject.Selector.parse(self.file, ".IfcWall") == [element]
+
+    def test_selecting_by_globalid(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSlab")
+        assert subject.Selector.parse(self.file, f"#{element.GlobalId}") == [element]
+
+    def test_selecting_by_attribute(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        element.Name = "Foobar"
+        ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcSlab")
+        assert subject.Selector.parse(self.file, '.IfcElement[Name="Foobar"]') == [element]
+        assert subject.Selector.parse(self.file, '.IfcElement[Name="Foobaz"]') == []
+
+    def test_selecting_by_string_property(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        pset = ifcopenshell.api.run("pset.add_pset", self.file, product=element, name="Foo_Bar")
+        ifcopenshell.api.run("pset.edit_pset", self.file, pset=pset, properties={"Foo": "Bar"})
+        assert subject.Selector.parse(self.file, '.IfcElement[Foo_Bar.Foo="Bar"]') == [element]