fix: changed get alert by fingerprint

keep/api/routes/alerts.py

@@ -757,8 +757,8 @@ def get_alert(
             "tenant_id": tenant_id,
         },
     )
-    all_alerts = get_all_alerts(authenticated_entity=authenticated_entity)
-    alert = list(filter(lambda alert: alert.fingerprint == fingerprint, all_alerts))
+    all_alerts = get_alerts_by_fingerprint(tenant_id=tenant_id,fingerprint=fingerprint)
+    alert = convert_db_alerts_to_dto_alerts(all_alerts)
     if alert:
         return alert[0]
     else:

tests/test_get_alert_by_fingerprint.py

@@ -0,0 +1,54 @@
+import pytest
+from datetime import datetime, timedelta
+import pytz
+
+from keep.api.models.alert import AlertStatus
+from tests.fixtures.client import client, setup_api_key, test_app  # noqa
+
+
+@pytest.mark.parametrize(
+    "test_app",
+    [
+        {
+            "AUTH_TYPE": "NOAUTH",
+        },
+    ],
+    indirect=True,
+)
+def test_get_alert_by_fingerprint_success(db_session, client, test_app, create_alert):
+    setup_api_key(db_session, "some-api-key")
+
+    fingerprint = "unit-test-fp"
+    now = datetime.now(tz=pytz.utc)
+    create_alert(fingerprint, AlertStatus.FIRING, now - timedelta(minutes=1))
+
+    response = client.get(
+        f"/alerts/{fingerprint}", headers={"x-api-key": "some-api-key"}
+    )
+
+    assert response.status_code == 200
+    body = response.json()
+    assert body["fingerprint"] == fingerprint
+    assert body["status"].lower() == "firing"
+
+
+@pytest.mark.parametrize(
+    "test_app",
+    [
+        {
+            "AUTH_TYPE": "NOAUTH",
+        },
+    ],
+    indirect=True,
+)
+def test_get_alert_by_fingerprint_not_found(db_session, client, test_app):
+    setup_api_key(db_session, "some-api-key")
+
+    response = client.get(
+        "/alerts/non-existent-fp", headers={"x-api-key": "some-api-key"}
+    )
+
+    assert response.status_code == 404
+    assert response.json()["detail"] == "Alert not found"
+
+