Never use :: in tests without dual-stack

Author: catap

src/aioquic/asyncio/client.py

@@ -52,7 +52,7 @@ async def connect(
       0-RTT.
     * ``local_port`` is the UDP port number that this client wants to bind.
     * ``dual_stack`` is a flag which enabled or disabled using IPv4/IPv6 Dual-Stack.
-      The default value is platform specific and similar with socket.has_dualstack_ipv6().
+      The default value is platform specific and similar to socket.has_dualstack_ipv6()
     """
     loop = asyncio.get_event_loop()
 

tests/test_asyncio.py

@@ -100,7 +100,11 @@ async def run_client(
         return response
 
     @contextlib.asynccontextmanager
-    async def run_server(self, configuration=None, host="::", **kwargs):
+    async def run_server(self, configuration=None, host=None, **kwargs):
+        if host is None and not socket.has_dualstack_ipv6():
+            host = "127.0.0.1"
+        elif host is None:
+            host = "::"
         if configuration is None:
             configuration = QuicConfiguration(is_client=False)
             configuration.load_cert_chain(SERVER_CERTFILE, SERVER_KEYFILE)