Implemented dictionnary based file system to speed up the tests

tests/test_ExactConceptParser.py

@@ -1,33 +1,9 @@
-import pytest
-from os import path
-import shutil
-import os
-
-from core.builtin_concepts import ParserResultConcept, BuiltinConcepts
+from core.builtin_concepts import BuiltinConcepts
 from core.concept import Concept, Property
 from core.sheerka import Sheerka, ExecutionContext
 from core.tokenizer import Tokenizer
-from parsers.DefaultParser import DefaultParser
 from parsers.ExactConceptParser import ExactConceptParser
 
-tests_root = path.abspath("../build/tests")
-root_folder = "init_folder"
-
-
-@pytest.fixture(autouse=True)
-def init_test():
-    if path.exists(tests_root):
-        shutil.rmtree(tests_root)
-
-    if not path.exists(tests_root):
-        os.makedirs(tests_root)
-    current_pwd = os.getcwd()
-    os.chdir(tests_root)
-
-    yield None
-
-    os.chdir(current_pwd)
-
 
 def test_i_can_compute_combinations():
     parser = ExactConceptParser()
@@ -150,7 +126,7 @@ def test_i_can_detect_concept_from_tokens():
 
 def get_context():
     sheerka = Sheerka()
-    sheerka.initialize(root_folder)
+    sheerka.initialize("mem://")
 
     return ExecutionContext("sheerka", "xxxx", sheerka)