Implement CSRF

tests/__init__.py

@@ -2,13 +2,16 @@
 
 """PyTest unit tests."""
 
+import os
 import pytest
 
-from app.app import app
+from app.app import app, csrf
 
 
 @pytest.fixture
 def client():
     """Set up Flask client for use in tests."""
+    app.secret_key = os.urandom(12).hex()
+    csrf.init_app(app)
     client = app.test_client()
     yield client