IfcTester can now read from XML strings in addition to opening files on disk

src/ifctester/test/test_ids.py

@@ -65,6 +65,15 @@ class TestIds:
             "specifications": {"specification": []},
         }
 
+    def test_reading_an_ids_from_an_xml_string(self):
+        specs = ids.Ids()
+        spec = ids.Specification(name="Name")
+        spec.applicability.append(ids.Entity(name="IFCWALL"))
+        specs.specifications.append(spec)
+        xml = specs.to_string()
+        specs2 = ids.from_string(xml)
+        assert len(specs2.specifications) == 1
+
     def test_create_an_ids_with_all_possible_information(self):
         specs = ids.Ids(
             title="title",
@@ -117,7 +126,7 @@ class TestIds:
         spec.requirements.append(ids.Attribute(name="Name", value="Waldo"))
         specs.specifications.append(spec)
         fn = "tmp.xml"
-        result = specs.to_xml(fn)
+        specs.to_xml(fn)
         os.remove(fn)
 
     def test_creating_a_minimal_ids_and_validating(self):
@@ -187,27 +196,11 @@ class TestIds:
         spec.set_usage("optional")
         model = ifcopenshell.file()
         wall = model.createIfcWall(Name="Waldo")
-        spec.requirements.append(description_attr := ids.Attribute(name="Description", value="Foobar"))
+        spec.requirements.append(ids.Attribute(name="Description", value="Foobar"))
         run("A specification passes only if all requirements pass 1/2", specs, model, False, [wall], [wall])
         wall.Description = "Foobar"
         run("A specification passes only if all requirements pass 2/2", specs, model, True, [wall])
 
-        # optional attribute
-        # description_attr.minOccurs = 0
-        # description_attr.maxOccurs = "unbounded"
-        # wall.Description = None
-        # run("Specification optionality and facet optionality can be combined", specs, model, True, [wall])
-
-        # double negative / required attributes
-        # spec.set_usage("prohibited")
-        # name_attr.minOccurs = 0
-        # name_attr.maxOccurs = 0
-        # description_attr.minOccurs = 0
-        # description_attr.maxOccurs = 0
-        # wall.Name = "Waldo"
-        # wall.Description = "Foobar"
-        # run("A prohibited specification and a prohibited facet results in a double negative", specs, model, True, [wall])
-
         # specs independency
         specs = ids.Ids(title="Title")
         spec = ids.Specification(name="Name")