Add test with network partition for super stream SAC group

Author: acogoluegnes

deps/rabbit/src/rabbit_stream_sac_coordinator.erl

@@ -1168,8 +1168,7 @@ evaluate_active_consumer(#group{consumers = Consumers} = G) ->
             do_evaluate_active_consumer(G#group{consumers = eligible(Consumers)})
     end.
 
-do_evaluate_active_consumer(#group{partition_index = -1,
-                                consumers = Consumers})
+do_evaluate_active_consumer(#group{consumers = Consumers})
     when length(Consumers) == 0 ->
     undefined;
 do_evaluate_active_consumer(#group{partition_index = -1,

deps/rabbitmq_ct_helpers/src/stream_test_utils.erl

@@ -18,6 +18,9 @@
 
 connect(Config, Node) ->
     StreamPort = rabbit_ct_broker_helpers:get_node_config(Config, Node, tcp_port_stream),
+    connect(StreamPort).
+
+connect(StreamPort) ->
     {ok, Sock} = gen_tcp:connect("localhost", StreamPort, [{active, false}, {mode, binary}]),
 
     C0 = rabbit_stream_core:init(0),