test(api): add tests for ai suggestion endpoints and helpers

backend/tests/test_routines.py

@@ -216,3 +216,60 @@ def test_delete_grooming_schedule(client):
 def test_delete_grooming_schedule_not_found(client):
     r = client.delete(f"/routines/grooming-schedule/{uuid.uuid4()}")
     assert r.status_code == 404
+
+from unittest.mock import patch
+
+def test_suggest_routine(client, session):
+    with patch("innercontext.api.routines.call_gemini") as mock_gemini:
+        # Mock the Gemini response
+        mock_response = type("Response", (), {"text": '{"steps": [{"product_id": null, "action_type": "shaving_razor"}], "reasoning": "because"}'})
+        mock_gemini.return_value = mock_response
+
+        r = client.post(
+            "/routines/suggest",
+            json={
+                "routine_date": "2026-03-03",
+                "part_of_day": "am",
+                "notes": "Testing",
+                "include_minoxidil_beard": True
+            }
+        )
+        assert r.status_code == 200
+        data = r.json()
+        assert len(data["steps"]) == 1
+        assert data["steps"][0]["action_type"] == "shaving_razor"
+        assert data["reasoning"] == "because"
+
+def test_suggest_batch(client, session):
+    with patch("innercontext.api.routines.call_gemini") as mock_gemini:
+        # Mock the Gemini response
+        mock_response = type("Response", (), {"text": '{"days": [{"date": "2026-03-03", "am_steps": [], "pm_steps": [], "reasoning": "none"}], "overall_reasoning": "batch test"}'})
+        mock_gemini.return_value = mock_response
+
+        r = client.post(
+            "/routines/suggest-batch",
+            json={
+                "from_date": "2026-03-03",
+                "to_date": "2026-03-04",
+                "minimize_products": True
+            }
+        )
+        assert r.status_code == 200
+        data = r.json()
+        assert len(data["days"]) == 1
+        assert data["days"][0]["date"] == "2026-03-03"
+        assert data["overall_reasoning"] == "batch test"
+
+def test_suggest_batch_invalid_date_range(client):
+    r = client.post(
+        "/routines/suggest-batch",
+        json={"from_date": "2026-03-04", "to_date": "2026-03-03"}
+    )
+    assert r.status_code == 400
+
+def test_suggest_batch_too_long(client):
+    r = client.post(
+        "/routines/suggest-batch",
+        json={"from_date": "2026-03-01", "to_date": "2026-03-20"}
+    )
+    assert r.status_code == 400