Updated sheerka.value() and added unit tests

core/builtin_concepts.py

@@ -45,7 +45,6 @@ class BuiltinConcepts(Enum):
     ENUMERATION = "enum"  # represents a list or a set
     LIST = "list"  # represents a list
     CANNOT_RESOLVE_VALUE_ERROR = "value cannot be resolved"  # don't know how to find concept value
-    CONCEPT_NOT_INITIALIZED = "concept not evaluated"  # Try to work on a concept that is not evaluated
 
     NODE = "node"
     GENERIC_NODE = "generic node"
@@ -69,7 +68,6 @@ BuiltinErrors = [str(e) for e in {
     BuiltinConcepts.CONCEPT_ALREADY_DEFINED,
     BuiltinConcepts.CONCEPT_EVAL_ERROR,
     BuiltinConcepts.CANNOT_RESOLVE_VALUE_ERROR,
-    BuiltinConcepts.CONCEPT_NOT_INITIALIZED
 }]
 
 """
@@ -293,27 +291,6 @@ class ConceptEvalError(Concept):
         return self.props["property_name"].value
 
 
-class ConceptNotInitialized(Concept):
-    def __init__(self, error=None, concept=None, property_name=None):
-        super().__init__(BuiltinConcepts.CONCEPT_NOT_INITIALIZED,
-                         True,
-                         False,
-                         BuiltinConcepts.CONCEPT_NOT_INITIALIZED,
-                         error)
-        self.set_prop("concept", concept)
-
-    def __repr__(self):
-        return f"ConceptNotInitialized(error={self.error}, concept={self.concept})"
-
-    @property
-    def error(self):
-        return self.body
-
-    @property
-    def concept(self):
-        return self.props["concept"].value
-
-
 class EnumerationConcept(Concept):
     def __init__(self, iteration=None):
         super().__init__(BuiltinConcepts.ENUMERATION, True, False, BuiltinConcepts.ENUMERATION, iteration)