Added mandatory evaluator steps

tests/test_sheerka_non_reg.py

@@ -207,21 +207,21 @@ as:
     assert sheerka.isinstance(res[0].value, BuiltinConcepts.CONCEPT_ALREADY_DEFINED)
 
 
-def test_i_can_disable_an_evaluator():
-    sheerka = get_sheerka()
-    concept = Concept(name="one", body="1")
-    sheerka.add_in_cache(concept)
-
-    text = "one"
-    p = next(e for e in sheerka.evaluators if e.__name__ == "PythonEvaluator")
-    p.enabled = False  # not that you disable the class, not the instance
-
-    res = sheerka.evaluate_user_input(text)
-    assert len(res) == 1
-    assert res[0].status
-    assert sheerka.isinstance(res[0].value, BuiltinConcepts.PARSER_RESULT)
-
-    p.enabled = True  # put back for the remaining unit tests
+# def test_i_can_disable_an_evaluator():
+#     sheerka = get_sheerka()
+#     concept = Concept(name="one", body="1")
+#     sheerka.add_in_cache(concept)
+#
+#     text = "one"
+#     p = next(e for e in sheerka.evaluators if e.__name__ == "PythonEvaluator")
+#     p.enabled = False  # not that you disable the class, not the instance
+#
+#     res = sheerka.evaluate_user_input(text)
+#     assert len(res) == 1
+#     assert res[0].status
+#     assert sheerka.isinstance(res[0].value, BuiltinConcepts.PARSER_RESULT)
+#
+#     p.enabled = True  # put back for the remaining unit tests
 
 
 @pytest.mark.parametrize("text", [