TestIntegrationReturn failing with RabbitMQ 3.0.0 about amqp HOT 1 CLOSED

TestIntegrationReturn looks like it's failing because of a feature removal:

23896 remove support for AMQP's "immediate" publish mode

I get these logs when running that test:

=ERROR REPORT==== 16-Dec-2012::11:41:41 ===
AMQP connection <0.5280.0> (running), channel 1 - error:
{amqp_error,not_implemented,"immediate=true",'basic.publish'}

And the driver behavior is correct, the channel is closed when this exception is raised.

I'll look into other ways of producing a basic.return message, but for now, I think it looks like doing a server version negotiation for this test.

from amqp.