Support multi-source content asset filtering end-to-end

backend/tests/api/test_content_assets_router.py

@@ -0,0 +1,31 @@
+import importlib.util
+from pathlib import Path
+from fastapi import HTTPException
+
+ROOT = Path(__file__).resolve().parents[3]
+ROUTER_PATH = ROOT / 'backend' / 'api' / 'content_assets' / 'router.py'
+MODELS_PATH = ROOT / 'backend' / 'models' / 'content_asset_models.py'
+
+models_spec = importlib.util.spec_from_file_location('content_asset_models', MODELS_PATH)
+models = importlib.util.module_from_spec(models_spec)
+models_spec.loader.exec_module(models)
+AssetSource = models.AssetSource
+
+router_spec = importlib.util.spec_from_file_location('content_assets_router', ROUTER_PATH)
+router = importlib.util.module_from_spec(router_spec)
+router_spec.loader.exec_module(router)
+
+
+def test_parse_source_modules_supports_repeated_and_csv_values():
+    parsed = router._parse_source_modules(["blog_writer", "youtube,podcast"])
+    assert parsed == [AssetSource.BLOG_WRITER, AssetSource.YOUTUBE, AssetSource.PODCAST]
+
+
+def test_parse_source_modules_raises_for_invalid_values():
+    try:
+        router._parse_source_modules(["blog_writer,unknown"])
+    except HTTPException as exc:
+        assert exc.status_code == 400
+        assert "Invalid source module" in exc.detail
+    else:
+        raise AssertionError("Expected HTTPException for invalid source module")