test: add JWT authorization decorator test cases (#741)

Author: tomondre

tests/test_decorators.py

@@ -8,7 +8,7 @@
 """REANA-Server decorators tests."""
 
 import json
-from unittest.mock import Mock, patch
+from unittest.mock import Mock, patch, MagicMock
 
 from flask import jsonify
 from reana_db.models import User, UserToken
@@ -31,3 +31,61 @@ def test_signing_required_with_token(user0: User):
         mock_endpoint.assert_not_called()
         assert code == 401
         assert error["message"] == "User has no active tokens"
+
+
+def test_signin_required_with_jwt(user0: User):
+    """Test `signin_required` with JWT token authentication."""
+    mock_endpoint = Mock(return_value=(jsonify(message="Success"), 200))
+    mock_current_user = Mock()
+    mock_current_user.is_authenticated = False
+    mock_current_user.email = user0.email
+
+    mock_request = Mock()
+    mock_request.headers = {"Authorization": "Bearer token123"}
+    mock_request.args = {}
+    mock_request_context = MagicMock()
+    mock_request_context.__enter__.return_value = mock_request
+
+    with patch("reana_server.decorators._get_user_from_jwt", mock_current_user):
+        with patch("reana_server.decorators.current_user", mock_current_user):
+            with patch("reana_server.decorators.request", mock_request):
+                decorated_endpoint = signin_required(include_jwt=True)(mock_endpoint)
+                response, code = decorated_endpoint()
+
+                # Should call the endpoint since authentication succeeded
+                mock_endpoint.assert_called_once()
+                assert code == 200
+                assert (
+                    json.loads(response.get_data(as_text=True))["message"] == "Success"
+                )
+
+
+def test_signin_required_with_invalid_jwt(user0: User):
+    """Test `signin_required` with invalid JWT token."""
+    mock_endpoint = Mock(return_value=(jsonify(message="Success"), 200))
+    mock_current_user = Mock()
+    mock_current_user.is_authenticated = False
+    mock_current_user.email = user0.email
+
+    mock_request = Mock()
+    mock_request.headers = {"Authorization": "Bearer invalid_token"}
+    mock_request.args = {}
+    mock_request_context = MagicMock()
+    mock_request_context.__enter__.return_value = mock_request
+
+    with patch("reana_server.decorators.current_user", mock_current_user):
+        with patch(
+            "reana_server.decorators._get_user_from_jwt",
+            side_effect=ValueError("Invalid token"),
+        ):
+            with patch("reana_server.decorators.request", mock_request):
+                decorated_endpoint = signin_required(include_jwt=True)(mock_endpoint)
+                response, code = decorated_endpoint()
+
+                # Should not call the endpoint since authentication failed
+                mock_endpoint.assert_not_called()
+                assert code == 403
+                assert (
+                    json.loads(response.get_data(as_text=True))["message"]
+                    == "Invalid token"
+                )