adding negative test for user with no permissions

deps/amqp_client/Makefile

@@ -62,6 +62,7 @@ RABBITMQ_NODENAME=rabbit
 BROKER_START_ARGS=-pa $(realpath $(LOAD_PATH))
 MAKE_BROKER=$(MAKE) RABBITMQ_SERVER_START_ARGS='$(BROKER_START_ARGS)' -C $(BROKER_DIR)
 ERL_CALL_BROKER=erl_call -sname $(RABBITMQ_NODENAME) -e
+RABBITMQCTL=$(BROKER_DIR)/scripts/rabbitmqctl
 
 PLT=$(HOME)/.dialyzer_plt
 DIALYZER_CALL=dialyzer --plt $(PLT)
@@ -238,9 +239,12 @@ clean_test_error_flag:
 prepare_for_testing: compile compile_tests \
                      start_background_node_in_broker \
                      clean_test_error_flag
+	$(RABBITMQCTL) delete_user test_user_no_perm || echo "No user to delete."
+	$(RABBITMQCTL) add_user test_user_no_perm test_user_no_perm
 
 .PHONY: cleanup_after_testing
 cleanup_after_testing: stop_background_node_in_broker
+	$(RABBITMQCTL) delete_user no_perm_test_user
 	@test -e .test_error || echo "All tests successful."
 	@test ! -e .test_error || echo "*** One or more tests FAILED! See SASL log for details. ***"
 	@test ! -e .test_error

deps/amqp_client/test/negative_test_util.erl

@@ -65,3 +65,8 @@ invalid_password_test() ->
 non_existent_vhost_test() ->
     ?assertError(_, amqp_connection:start_network("guest", "guest", "localhost",
                                                   <<"bum_vhost">>)).
+
+no_perm_user_test() ->
+    ?assertError(_, amqp_connection:start_network("test_user_no_perm",
+                                                  "test_user_no_perm",
+                                                  "localhost")).

deps/amqp_client/test/network_client_SUITE.erl

@@ -83,6 +83,9 @@ invalid_password_test() ->
 non_existent_vhost_test() ->
     negative_test_util:non_existent_vhost_test().
 
+no_perm_user_test() ->
+    negative_test_util:no_perm_user_test().
+
 %%---------------------------------------------------------------------------
 %% Common Functions