Fixed RET functionnality misbehaviour

tests/evaluators/test_AddConceptEvaluator.py

@@ -66,6 +66,7 @@ class TestAddConceptEvaluator(TestUsingMemoryBasedSheerka):
             def_concept.post = self.get_concept_part(post)
         if ret:
             def_concept.ret = self.get_concept_part(ret)
+
         if bnf_def:
             def_concept.definition = bnf_def
             def_concept.definition_type = DEFINITION_TYPE_BNF
@@ -174,6 +175,15 @@ class TestAddConceptEvaluator(TestUsingMemoryBasedSheerka):
 
         assert AddConceptEvaluator.get_variables(context.sheerka, ret_val, ["a", "b"]) == ["a"]
 
+    def test_i_can_get_variables_when_keywords(self):
+        sheerka, context = self.init_concepts()
+
+        def_concept = self.get_def_concept("condition pre").value.value
+        name_to_use = AddConceptEvaluator.get_name_to_use(def_concept)
+        concept_part = self.get_concept_part("pre")
+
+        assert AddConceptEvaluator.get_variables(context.sheerka, concept_part, name_to_use) == ["pre"]
+
     def test_i_cannot_get_variables_from_python_node_when_name_has_only_one_token(self):
         ret_val = self.get_concept_part("isinstance(a, str)")
         context = self.get_context()