How to use Masstransit and RabbitMQ in Unit Test

I used Masstransit(v3.1.1) and RabbitMQ in my application. When I debug integration test or unit test but Masstransit don't publish event.

I can't create IBus mock object and use it. Please help me how to create IBus mock object or how to use realy IBus in unit test with publish and consume message.