Adding json functions

tests/test_query_valid.py

+#!/usr/bin/ python3
+# Authors : Julien DAVID & Ismail MOUMNI
+import sys
+import os
+import pytest
+import json
+sys.path.append(os.path.realpath('../softwares/'))
+
+import server.server as serv # noqa E402
+
+
+data_test1 = '{"parameters": "request"}'
+data_test2 = '{"Ref": "Parameters"}'
+
+
+data_load = json.loads((data_test1))
+data_load2 = json.loads(data_test2)
+
+
+def test_query_valid():
+    var = serv.query_valid(data_load)
+    assert ((var) is True)
+
+
+def test_bad_missing():
+    with pytest.raises(Exception):
+        assert serv.query_valid(data_load2)