Publish element classes MicroMVD definitions

src/ifcbimtester/features/steps/element_classes.py

@@ -0,0 +1,34 @@
+from behave import step
+from utils import IfcFile, assert_attribute
+
+@step('The element {guid} is an {ifc_class} only')
+def step_impl(context, guid, ifc_class):
+    element = IfcFile.by_guid(guid)
+    assert element.is_a() == ifc_class, 'The element {} is an {} instead of {}.'.format(element, element.is_a(), ifc_class)
+
+
+@step('The element {guid} is an {ifc_class}')
+def step_impl(context, guid, ifc_class):
+    element = IfcFile.by_guid(guid)
+    assert element.is_a(ifc_class), 'The element {} is an {} instead of {}.'.format(element, element.is_a(), ifc_class)
+
+
+@step('The element {guid} is further defined as a {predefined_type}')
+def step_impl(context, guid, predefined_type):
+    element = IfcFile.by_guid(guid)
+    if (hasattr(element, 'PredefinedType') and element.PredefinedType == 'USERDEFINED') \
+            or hasattr(element,'ObjectType'):
+        assert_attribute(element, 'ObjectType', predefined_type)
+    elif hasattr(element, 'PredefinedType'):
+        assert_attribute(element, 'PredefinedType', predefined_type)
+    else:
+        assert False, 'The element {} does not have a PredefinedType or ObjectType attribute'.format(element)
+
+
+@step('The element {guid} should not exist because {reason}')
+def step_impl(context, guid, reason):
+    try:
+        element = IfcFile.get().by_id(guid)
+    except:
+        return
+    assert False, 'This element {} should be reevaluated.'.format(element)