Implemented ConceptManager with concept creation, modification and deletion

tests/evaluators/test_PythonEvaluator.py

@@ -3,6 +3,7 @@ import ast
 import pytest
 from core.builtin_concepts import ReturnValueConcept, ParserResultConcept, BuiltinConcepts
 from core.concept import Concept, CB
+from core.sheerka.services.SheerkaConceptManager import SheerkaConceptManager
 from core.sheerka.services.SheerkaExecute import ParserInput
 from core.tokenizer import Tokenizer
 from evaluators.PythonEvaluator import PythonEvaluator, PythonEvalError, NamesWithAttributesVisitor
@@ -18,6 +19,10 @@ def get_obj_name(obj):
     return obj.name
 
 
+def return_return_value(status):
+    return ReturnValueConcept("who", status, f"the value is {status}")
+
+
 def get_source_code_node(source_code, concepts=None):
     if concepts:
         for concept_name, concept in sorted(concepts.items(), key=lambda kv: len(kv[0]), reverse=True):
@@ -132,8 +137,7 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
         evaluated = PythonEvaluator().eval(context, parsed)
 
         assert evaluated.status
-        assert sheerka.has_key("foo")
-
+        assert sheerka.services[SheerkaConceptManager.NAME].has_key("foo")
 
     def test_i_can_eval_ast_expression_that_references_concepts(self):
         """
@@ -141,7 +145,7 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
         :return:
         """
         context = self.get_context()
-        context.sheerka.add_in_cache(Concept("foo", body="1"))
+        context.sheerka.test_only_add_in_cache(Concept("foo", body="1"))
 
         parsed = PythonParser().parse(context, ParserInput("foo + 2"))
         evaluated = PythonEvaluator().eval(context, parsed)
@@ -155,7 +159,7 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
         :return:
         """
         context = self.get_context()
-        context.sheerka.add_in_cache(Concept("foo"))
+        context.sheerka.test_only_add_in_cache(Concept("foo"))
 
         parsed = PythonParser().parse(context, ParserInput("def a(b):\n    return b\na(c:foo:)"))
         evaluated = PythonEvaluator().eval(context, parsed)
@@ -178,7 +182,7 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
 
     def test_i_can_eval_concept_token(self):
         context = self.get_context()
-        context.sheerka.add_in_cache(Concept("foo", body="2"))
+        context.sheerka.test_only_add_in_cache(Concept("foo", body="2"))
         context.add_to_short_term_memory("get_obj_name", get_obj_name)
 
         parsed = PythonParser().parse(context, ParserInput("get_obj_name(c:foo:)"))
@@ -190,7 +194,7 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
 
     def test_i_can_eval_when_expect_success(self):
         context = self.get_context()
-        context.sheerka.add_in_cache(Concept("foo", body="2"))
+        context.sheerka.test_only_add_in_cache(Concept("foo", body="2"))
 
         parsed = PythonParser().parse(context, ParserInput("foo==2"))
         python_evaluator = PythonEvaluator()
@@ -334,6 +338,23 @@ class TestPythonEvaluator(TestUsingMemoryBasedSheerka):
         assert evaluated.status
         assert evaluated.value == "Print return values"
 
+    @pytest.mark.parametrize("method, expected_status", [
+        ("return_return_value(True)", True),
+        ("return_return_value(False)", False),
+    ])
+    def test_i_can_eval_a_function_that_returns_a_return_value(self, method, expected_status):
+        context = self.get_context()
+        context.add_to_short_term_memory("return_return_value", return_return_value)
+
+        parsed = FunctionParser().parse(context, ParserInput(method))
+        python_evaluator = PythonEvaluator()
+        evaluated = python_evaluator.eval(context, parsed)
+        ret_val = return_return_value(expected_status)
+
+        assert evaluated.status == expected_status
+        assert evaluated.value == ret_val.body
+        assert ret_val in evaluated.parents
+
     @pytest.mark.parametrize("text, expected", [
         ("foo.bar.baz", [["foo", "bar", "baz"]]),
         ("foo.bar.baz; one.two.three", [["foo", "bar", "baz"]]),