Add sanity metadata test

tests/reqresp/metadata.py

@@ -0,0 +1,32 @@
+from eth2spec.utils.ssz.ssz_typing import uint64, Bitvector, Container
+from sclients import connect_rumor
+
+from ..utils import parse_chunk_response, with_rumor
+
+class Metadata(Container):
+    seq_number: uint64
+    attnets: Bitvector[64]
+
+
+@with_rumor
+async def run(rumor, args):
+    peer_id = await connect_rumor(rumor, args['client'], args['enr'])
+
+    logs = []
+    return_code = 0
+
+    req_call = rumor.rpc.metadata.req.raw(peer_id, '', raw=True, compression='snappy')
+    await req_call
+    await req_call.next()
+    resp = await req_call.next()
+
+    (resp_data, l) = parse_chunk_response(resp)
+    logs.extend(l)
+    if resp_data is None:
+        return_code = 1
+
+    else:
+        # TODO: sanity checks on metadata
+        metadata = Metadata.decode_bytes(bytes.fromhex(resp_data))
+
+    return (return_code, logs)

tests/utils.py

@@ -19,9 +19,6 @@ async def wrapped_run_fn(args):
     return wrapped_run_fn
 
 def parse_chunk_response(resp):
-    if not(resp['result_code'] == 0):
-        return (None, [f"request error: {resp['msg']}"])
-
     if 'data' not in resp:
         return (None, [f"request error: 'data' field not in response"])