Implemented SheerkaOntology

tests/core/test_utils.py

@@ -3,7 +3,9 @@ from dataclasses import dataclass
 import core.utils
 import pytest
 from core.builtin_concepts import BuiltinConcepts
+from core.builtin_helpers import evaluate_expression
 from core.concept import Concept
+from core.global_symbols import NotFound, NotInit, Removed
 from core.tokenizer import Token, TokenKind, Tokenizer, Keywords
 
 
@@ -306,7 +308,7 @@ def test_i_can_make_unique():
     ("a.prop2.bar", {"a": Obj2(None, {'foo': 'dict-first', 'bar': 'dict-second'})}, 'dict-second'),
 ])
 def test_i_can_evaluate_expression(expression, bag, expected):
-    assert core.utils.evaluate_expression(expression, bag) == expected
+    assert evaluate_expression(expression, bag) == expected
 
 
 @pytest.mark.parametrize("expression, bag, expected_error, prop_name", [
@@ -315,7 +317,7 @@ def test_i_can_evaluate_expression(expression, bag, expected):
 ])
 def test_i_cannot_evaluate_expression(expression, bag, expected_error, prop_name):
     with pytest.raises(expected_error) as e:
-        core.utils.evaluate_expression(expression, bag)
+        evaluate_expression(expression, bag)
 
     assert e.value.args == (prop_name,)
 
@@ -417,3 +419,9 @@ def test_i_can_deep_copy_a_concept():
     concept_props = sorted(list(concept.get_prop(BuiltinConcepts.ISA)), key=lambda o: o.id)
     for copied_prop, concept_prop in zip(copied_props, concept_props):
         check_are_the_same(copied_prop, concept_prop)
+
+
+def test_i_can_deep_copy_a_custom_type():
+    assert core.utils.sheerka_deepcopy(NotInit) is NotInit
+    assert core.utils.sheerka_deepcopy(NotFound) is NotFound
+    assert core.utils.sheerka_deepcopy(Removed) is Removed