Refactored sdp serializers

tests/test_sheerka.py

@@ -1,27 +1,30 @@
 import pytest
 import os
+from os import path
+import shutil
 
 from core.concept import Concept
 from core.sheerka import Sheerka
 
+tests_root = path.abspath("../build/tests")
+
 
 @pytest.fixture(autouse=True)
 def init_test():
-    print("Before yield")
-    print("Current folder " + os.getcwd())
-    if not os.path.exists("build/tests"):
-        os.makedirs("build/tests")
+    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("build/tests")
+    os.chdir(tests_root)
+
     yield None
 
     os.chdir(current_pwd)
-    print("After yield")
-    print("Current folder " + os.getcwd())
 
 
 def test_root_folder_is_created_after_initialization():
-    print("Before yield")
     root_folder = "init_folder"
 
     return_value = Sheerka().initialize(root_folder)
@@ -49,3 +52,4 @@ def test_null_concept_are_equals():
 
     assert Sheerka.concept_equals(None, None)
     assert Sheerka.concept_equals(concept1, concept1)
+