Add test coverage for _serialize_notification_rule

backend/secuscan/routes_notification_helpers.py

@@ -0,0 +1,39 @@
+"""
+Notification rule/history serialization helpers.
+
+Extracted from routes.py so they can be unit-tested without pulling in the
+FastAPI / xhtml2pdf / reportlab import chain.
+
+Public API
+----------
+serialize_notification_rule(row: Dict) -> Dict
+    Converts a database row dict into the API response shape for a notification
+    rule. Handles missing optional fields and coerces ``is_active`` to bool.
+"""
+
+from __future__ import annotations
+
+from typing import Any, Dict
+
+
+def serialize_notification_rule(row: Dict[str, Any]) -> Dict[str, Any]:
+    """Serialize a notification rule DB row into the API response format.
+
+    Args:
+        row: A database row dict. Required keys: ``id``, ``name``,
+             ``severity_threshold``, ``channel_type``, ``target_url_or_email``,
+             ``is_active``. Optional keys: ``created_at``, ``updated_at``.
+
+    Returns:
+        A dict with the API response shape.
+    """
+    return {
+        "id": row["id"],
+        "name": row["name"],
+        "severity_threshold": row["severity_threshold"],
+        "channel_type": row["channel_type"],
+        "target_url_or_email": row["target_url_or_email"],
+        "is_active": bool(row.get("is_active")),
+        "created_at": row.get("created_at"),
+        "updated_at": row.get("updated_at"),
+    }

testing/backend/unit/test_routes_notification_helpers.py

@@ -0,0 +1,74 @@
+"""
+Unit tests for serialize_notification_rule in
+backend.secuscan.routes_notification_helpers.
+"""
+
+import pytest
+from backend.secuscan.routes_notification_helpers import serialize_notification_rule
+
+
+class TestSerializeNotificationRule:
+    def test_all_fields_present(self):
+        row = {
+            "id": 42,
+            "name": "Discord Alert",
+            "severity_threshold": 7,
+            "channel_type": "webhook",
+            "target_url_or_email": "https://discord.com/api/webhooks/1/abc",
+            "is_active": 1,
+            "created_at": "2026-01-01T00:00:00Z",
+            "updated_at": "2026-01-02T00:00:00Z",
+        }
+        result = serialize_notification_rule(row)
+        assert result["id"] == 42
+        assert result["name"] == "Discord Alert"
+        assert result["severity_threshold"] == 7
+        assert result["channel_type"] == "webhook"
+        assert result["target_url_or_email"] == "https://discord.com/api/webhooks/1/abc"
+        assert result["is_active"] is True
+        assert result["created_at"] == "2026-01-01T00:00:00Z"
+        assert result["updated_at"] == "2026-01-02T00:00:00Z"
+
+    def test_is_active_true_coerced_from_truthy_value(self):
+        for val in [1, True, "yes", "1"]:
+            row = {"id": 1, "name": "R", "severity_threshold": 5,
+                   "channel_type": "email", "target_url_or_email": "a@b.com",
+                   "is_active": val}
+            result = serialize_notification_rule(row)
+            assert result["is_active"] is True, f"is_active={val!r}"
+
+    def test_is_active_false_coerced_from_falsy_value(self):
+        for val in [0, False, None, ""]:
+            row = {"id": 1, "name": "R", "severity_threshold": 5,
+                   "channel_type": "email", "target_url_or_email": "a@b.com",
+                   "is_active": val}
+            result = serialize_notification_rule(row)
+            assert result["is_active"] is False, f"is_active={val!r}"
+
+    def test_missing_created_at_yields_none(self):
+        row = {"id": 1, "name": "R", "severity_threshold": 5,
+               "channel_type": "email", "target_url_or_email": "a@b.com",
+               "is_active": True}
+        result = serialize_notification_rule(row)
+        assert result["created_at"] is None
+
+    def test_missing_updated_at_yields_none(self):
+        row = {"id": 1, "name": "R", "severity_threshold": 5,
+               "channel_type": "email", "target_url_or_email": "a@b.com",
+               "is_active": True}
+        result = serialize_notification_rule(row)
+        assert result["updated_at"] is None
+
+    def test_email_channel_preserved(self):
+        row = {"id": 3, "name": "Email Report", "severity_threshold": 3,
+               "channel_type": "email", "target_url_or_email": "ops@corp.com",
+               "is_active": 1}
+        result = serialize_notification_rule(row)
+        assert result["channel_type"] == "email"
+
+    def test_severity_threshold_unchanged(self):
+        row = {"id": 4, "name": "T", "severity_threshold": 0,
+               "channel_type": "webhook", "target_url_or_email": "https://x.com",
+               "is_active": False}
+        result = serialize_notification_rule(row)
+        assert result["severity_threshold"] == 0