private async Task HeartbeatFinishedProcessing(Mocks mock, ConsumeRouter router)
{
// First we wait to be sure that a heartbeat has started being processed
WaitOneSecondMaxForEvent("heatbeat", mock.HeartbeatCalled);
// Then we wait to be sure that the current message is finished processing
// (this message being the heartbeat or a following message)
await router.StopProcessingTask();
}