Add configurable data providers and localize frontend UI

backend/tests/test_analysis_tools.py

@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+from datetime import datetime, timedelta
+
+from backend.tools.analysis_tools import _resolved_date
+
+
+def test_resolved_date_clamps_future_date():
+    future_date = (datetime.today() + timedelta(days=2)).strftime("%Y-%m-%d")
+
+    assert _resolved_date(future_date) == datetime.today().strftime("%Y-%m-%d")