EvalEvaluator is called only if in root context. Added action and action_context to ExecutionContext

tests/non_reg/test_sheerka_non_reg.py

@@ -1,7 +1,8 @@
 import pytest
 from core.builtin_concepts import BuiltinConcepts
-from core.concept import Concept, PROPERTIES_TO_SERIALIZE, simplec, CMV
+from core.concept import Concept, PROPERTIES_TO_SERIALIZE, simplec, CMV, CB, CC, CV
 from evaluators.MutipleSameSuccessEvaluator import MultipleSameSuccessEvaluator
+from evaluators.PythonEvaluator import PythonEvalError
 from parsers.BaseNodeParser import SyaAssociativity
 from parsers.BnfNodeParser import Sequence, StrMatch, OrderedChoice, Optional, ConceptExpression
 
@@ -916,10 +917,34 @@ as:
         assert sheerka.isinstance(res[0].body, BuiltinConcepts.SUCCESS)
         assert sheerka.get_concepts_weights("some_prop") == {'1001': 1, '1002': 2}
 
+        # it now also works using the concepts names
         expression = "eval one < two"
         res = sheerka.evaluate_user_input(expression)
-        assert not res[0].status
+        assert res[0].status
+        assert sheerka.isinstance(res[0].body, BuiltinConcepts.SUCCESS)
+        assert sheerka.get_concepts_weights("some_prop") == {'1001': 1, '1002': 2}
 
+    def test_i_can_detect_multiple_errors_when_evaluating_a_concept(self):
+        sheerka, context, foo, plus_one = self.init_concepts(
+            Concept("foo", body="'string'"),
+            Concept("a plus one", body="a + 1").def_var("a")
+        )
+
+        res = sheerka.evaluate_user_input("eval foo plus one")
+
+        assert not res[0].status
+        assert context.sheerka.isinstance(res[0].body, BuiltinConcepts.CONCEPT_EVAL_ERROR)
+        assert context.sheerka.isinstance(res[0].body.body, BuiltinConcepts.TOO_MANY_ERRORS)
+
+        error0 = res[0].body.body.body[0]
+        assert isinstance(error0, PythonEvalError)
+        assert isinstance(error0.error, TypeError)
+        assert error0.error.args[0] == 'can only concatenate str (not "int") to str'
+
+        error1 = res[0].body.body.body[1]
+        assert isinstance(error1, PythonEvalError)
+        assert isinstance(error1.error, TypeError)
+        assert error1.error.args[0] == "unsupported operand type(s) for +: 'Concept' and 'int'"
 
 
 class TestSheerkaNonRegFile(TestUsingFileBasedSheerka):