add google search skill

tests/metagpt/learn/test_google_search.py

@@ -0,0 +1,27 @@
+import asyncio
+
+from pydantic import BaseModel
+
+from metagpt.learn.google_search import google_search
+
+
+async def mock_google_search():
+    class Input(BaseModel):
+        input: str
+
+    inputs = [{"input": "ai agent"}]
+
+    for i in inputs:
+        seed = Input(**i)
+        result = await google_search(seed.input)
+        assert result != ""
+
+
+def test_suite():
+    loop = asyncio.get_event_loop()
+    task = loop.create_task(mock_google_search())
+    loop.run_until_complete(task)
+
+
+if __name__ == "__main__":
+    test_suite()