bimtester: step, prepare attributes eleclasses for translation

src/ifcbimtester/bimtester/features/steps/attributes_eleclasses.py

@@ -1,11 +1,13 @@
 from behave import step
 
+from attributes_eleclasses_methods import no_element_class_ele
 from utils import IfcFile
 
 
 @step("there are no {ifc_class} elements because {reason}")
 def step_impl(context, ifc_class, reason):
-    assert len(IfcFile.get().by_type(ifc_class)) == 0
+    switch_locale(context.localedir, "en")
+    no_element_class_ele(context, ifc_class, reason)
 
 
 @step('all {ifc_class} elements have a name matching the pattern "{pattern}"')

src/ifcbimtester/bimtester/features/steps/attributes_eleclasses_methods.py

@@ -0,0 +1,41 @@
+import gettext  # noqa
+from utils import assert_elements
+from utils import IfcFile
+
+
+def no_element_class_ele(context, ifc_class, reason):
+
+    context.falseelems = []
+    context.falseguids = []
+
+    elements = IfcFile.get().by_type(ifc_class)
+    for elem in elements:
+        context.falseelems.append(str(elem))
+        context.falseguids.append(elem.GlobalId)
+
+    context.elemcount = len(elements)
+    context.falsecount = len(context.falseelems)
+
+
+    if context.elemcount == 0 and context.falsecount == 0:
+        return  # Test OK, thus we can not use the assert_elements method
+    elif context.falsecount == context.elemcount:
+        assert False, (
+            _("All {elemcount} elements in the file are {ifc_class}.")
+            .format(
+                elemcount=context.elemcount,
+                ifc_class=ifc_class
+            )
+        )
+    elif context.falsecount > 0 and fcontext.alsecount < context.elemcount:
+        assert False, (
+            _("{falsecount} of {elemcount} element are {ifc_class} elements: {falseelems}")
+            .format(
+                falsecount=context.falsecount,
+                elemcount=context.elemcount,
+                ifc_class=ifc_class,
+                falseelems=context.falseelems,
+            )
+        )
+    else:
+        assert False, _("Error in falsecount, something went wrong.")