Implement test_queue_orders_breached_then_due_soon_then_priority_then_age() function

Author: AAdewunmi

tests/test_queue_api.py

@@ -0,0 +1,96 @@
+# path: policylens/tests/test_queue_api.py
+"""
+Integration tests for queue API ordering and filters.
+"""
+
+from __future__ import annotations
+
+from datetime import timedelta
+
+import pytest
+from django.contrib.auth import get_user_model
+from django.utils import timezone
+from django.urls import reverse
+
+from policylens.apps.claims.models import Claim, SlaClock
+from tests.factories import PolicyFactory
+
+User = get_user_model()
+
+
+@pytest.mark.django_db
+def test_queue_orders_breached_then_due_soon_then_priority_then_age(api_client):
+    """Queue ordering should be deterministic and operationally meaningful."""
+    user = User.objects.create_user(username="queue_user", password="password123")
+    api_client.force_authenticate(user=user)
+
+    policy = PolicyFactory()
+
+    # Old low priority but breached
+    breached_claim = Claim.objects.create(
+        policy=policy,
+        claim_type=Claim.Type.CLAIM,
+        priority=Claim.Priority.LOW,
+        summary="Breached",
+        created_by="seed",
+        status=Claim.Status.NEW,
+    )
+    SlaClock.objects.create(
+        claim=breached_claim,
+        started_at=breached_claim.created_at,
+        due_at=timezone.now() - timedelta(hours=1),
+    )
+
+    # Due soon high priority
+    due_soon_claim = Claim.objects.create(
+        policy=policy,
+        claim_type=Claim.Type.CLAIM,
+        priority=Claim.Priority.HIGH,
+        summary="Due soon",
+        created_by="seed",
+        status=Claim.Status.NEW,
+    )
+    SlaClock.objects.create(
+        claim=due_soon_claim,
+        started_at=due_soon_claim.created_at,
+        due_at=timezone.now() + timedelta(hours=2),
+    )
+
+    # Not due soon, high priority, older
+    normal_old_high = Claim.objects.create(
+        policy=policy,
+        claim_type=Claim.Type.CLAIM,
+        priority=Claim.Priority.HIGH,
+        summary="Normal older high",
+        created_by="seed",
+        status=Claim.Status.NEW,
+    )
+    SlaClock.objects.create(
+        claim=normal_old_high,
+        started_at=normal_old_high.created_at,
+        due_at=timezone.now() + timedelta(days=2),
+    )
+
+    # Not due soon, normal priority, oldest
+    normal_old_normal = Claim.objects.create(
+        policy=policy,
+        claim_type=Claim.Type.CLAIM,
+        priority=Claim.Priority.NORMAL,
+        summary="Normal older normal",
+        created_by="seed",
+        status=Claim.Status.NEW,
+    )
+    SlaClock.objects.create(
+        claim=normal_old_normal,
+        started_at=normal_old_normal.created_at,
+        due_at=timezone.now() + timedelta(days=2),
+    )
+
+    url = reverse("queue-claims")
+    resp = api_client.get(url)
+    assert resp.status_code == 200
+    ids = [item["id"] for item in resp.json()]
+
+    assert ids[0] == breached_claim.id
+    assert ids[1] == due_soon_claim.id
+    assert ids.index(normal_old_high.id) < ids.index(normal_old_normal.id)