Added length boundary check to abstract_reference

src/models/abstract_reference.py

@@ -45,7 +45,7 @@ class abstract_reference(ABC):
     def name(self, value: str):
         value = value.strip()
         validator.check_type(value, str)
-        validator.check_length_greater(0)
+        validator.check_length_bound(value, 1, 50)
         
         self.__name = value