Added ExactConceptParser

tests/test_sheerka.py

@@ -37,8 +37,7 @@ def test_root_folder_is_created_after_initialization():
 
 
 def test_lists_of_concepts_is_initialized():
-    sheerka = Sheerka()
-    sheerka.initialize(root_folder)
+    sheerka = get_sheerka()
     assert len(sheerka.concepts_cache) > 1
 
 
@@ -53,14 +52,13 @@ def get_concept():
         return x+y
     func(a,b)
     """
-    parser = DefaultParser(text, PythonParser)
-    return parser.parse()
+    parser = DefaultParser(PythonParser)
+    return parser.parse(None, text)
 
 
 def test_i_can_add_a_concept():
+    sheerka = get_sheerka()
     concept = get_concept()
-    sheerka = Sheerka()
-    sheerka.initialize(root_folder)
     res = sheerka.add_concept(ExecutionContext(sheerka, "xxx"), concept)
     concept_found = res.value
 
@@ -76,7 +74,7 @@ def test_i_can_add_a_concept():
     assert isinstance(concept_found.codes[ConceptParts.POST], ast.Expression)
     assert isinstance(concept_found.codes[ConceptParts.BODY], ast.Module)
 
-    all_props = [p.name for p in concept_found.props]
+    all_props = list(concept_found.props.keys())
     assert all_props == ["a", "b"]
 
     assert concept_found.key == "__var__0 + __var__1"
@@ -123,7 +121,14 @@ def test_i_can_instantiate_a_concept():
     """
     Test the new() functionnality
     make sure that some Concept are singleton (ex Sheerka, True, False)
-    but some other need a new instance everytime
+    otherwise, make sure that new() returns a **new** instance
     :return:
     """
     pass
+
+
+def get_sheerka():
+    sheerka = Sheerka()
+    sheerka.initialize(root_folder)
+
+    return sheerka