feat: add external site parser worker

tests/test_source_adapters.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+import unittest
+
+from vk_parser_app.source_adapters import SiteParserClient, validate_source_config
+
+
+class FakeResponse:
+    status = 200
+
+    async def __aenter__(self):
+        return self
+
+    async def __aexit__(self, *_args):
+        return None
+
+    async def json(self, **_kwargs):
+        return {
+            "items": [{
+                "external_id": "post-1",
+                "url": "https://example.test/1",
+                "title": "Title",
+                "text": "Body",
+                "published_at": "2026-08-10T10:00:00+00:00",
+                "media": [{"type": "photo", "url": "https://example.test/1.jpg"}],
+            }],
+            "browser_state": {"cookies": [{"name": "cf_clearance"}]},
+        }
+
+
+class FakeSession:
+    def post(self, *_args, **_kwargs):
+        return FakeResponse()
+
+
+class SourceAdapterTests(unittest.IsolatedAsyncioTestCase):
+    async def test_worker_response_is_normalized(self) -> None:
+        client = SiteParserClient(FakeSession(), "http://worker", "token", "captcha", 30)
+        items, state = await client.fetch({
+            "url": "https://example.test/rss.xml",
+            "settings_json": {"format": "rss", "access": "auto"},
+            "runtime_state_json": {},
+        })
+
+        self.assertEqual(items[0].text, "Title\n\nBody")
+        self.assertEqual(items[0].media[0].url, "https://example.test/1.jpg")
+        self.assertEqual(state["browser_state"]["cookies"][0]["name"], "cf_clearance")
+
+    def test_site_config_is_required(self) -> None:
+        with self.assertRaisesRegex(ValueError, "нужен конфиг"):
+            validate_source_config("site", {})
+
+
+if __name__ == "__main__":
+    unittest.main()