feat: Complete code integration of modules (#18)

The complete code integration is done.

Co-authored-by: Sagnik <sagnik7896@gmail.com>
Reviewed-on: sagnik/Project_Velocity#18

backend/tests/test_catalyst_routes.py

@@ -0,0 +1,94 @@
+from __future__ import annotations
+
+from fastapi import FastAPI
+from fastapi.testclient import TestClient
+
+from backend.api.routes_catalyst import router
+from backend.services.ad_network_service import BidAction, Platform
+
+
+def _build_client() -> TestClient:
+    app = FastAPI()
+
+    async def _broadcast_live_event(*_args, **_kwargs):
+        return None
+
+    app.state.broadcast_live_event = _broadcast_live_event
+    app.include_router(router, prefix="/api/catalyst")
+    return TestClient(app)
+
+
+def test_catalyst_campaigns_and_google_budget_routes(monkeypatch) -> None:
+    client = _build_client()
+
+    async def fake_list_campaigns(platform=None):
+        return [
+            type(
+                "Campaign",
+                (),
+                {
+                    "id": "google-camp-001",
+                    "name": "Search Investors",
+                    "platform": Platform.GOOGLE,
+                    "status": type("Status", (), {"value": "active"})(),
+                    "daily_budget": 5000,
+                    "spent": 0,
+                    "objective": "SEARCH",
+                    "bid_strategy": "TARGET_ROAS",
+                },
+            )()
+        ]
+
+    async def fake_get_insights(**_kwargs):
+        return [
+            {
+                "campaign_id": "google-camp-001",
+                "spend": 2400,
+                "impressions": 120000,
+                "clicks": 4200,
+                "conversions": 38,
+            }
+        ]
+
+    async def fake_update_budget(_payload):
+        return {"status": "ok", "platform": "google", "mode": "simulated"}
+
+    async def fake_update_bid_strategy(_payload):
+        return BidAction(
+            action_id="act-1",
+            campaign_id="google-camp-001",
+            platform=Platform.GOOGLE,
+            old_strategy="TARGET_CPA",
+            new_strategy="TARGET_ROAS",
+            target_value=8.5,
+            executed_at="2026-04-12T00:00:00Z",
+        )
+
+    monkeypatch.setattr("backend.api.routes_catalyst.ad_network_service.list_campaigns", fake_list_campaigns)
+    monkeypatch.setattr("backend.api.routes_catalyst.ad_network_service.get_insights", fake_get_insights)
+    monkeypatch.setattr("backend.api.routes_catalyst.ad_network_service.update_budget", fake_update_budget)
+    monkeypatch.setattr("backend.api.routes_catalyst.ad_network_service.update_bid_strategy", fake_update_bid_strategy)
+
+    campaigns = client.get("/api/catalyst/campaigns")
+    assert campaigns.status_code == 200
+    assert campaigns.json()["data"][0]["platform"] == "google"
+    assert campaigns.json()["data"][0]["conversions"] == 38
+
+    budget = client.put(
+        "/api/catalyst/budget",
+        json={"campaign_id": "google-camp-001", "platform": "google", "daily_budget": 6500},
+    )
+    assert budget.status_code == 200
+    assert budget.json()["data"]["platform"] == "google"
+
+    bid = client.put(
+        "/api/catalyst/bid-strategy",
+        json={
+            "campaign_id": "google-camp-001",
+            "platform": "google",
+            "strategy": "TARGET_ROAS",
+            "target_value": 8.5,
+        },
+    )
+    assert bid.status_code == 200
+    assert bid.json()["data"]["new_strategy"] == "TARGET_ROAS"