public async Task Moudle2MoudleMessagesForwarded()
{
var twinHandler = Mock.Of <ITwinHandler>();
var m2mHandler = Mock.Of <IModuleToModuleMessageHandler>();
var c2dHandler = Mock.Of <ICloud2DeviceMessageHandler>();
var directMethodHandler = Mock.Of <IDirectMethodHandler>();
var identity = new DeviceIdentity("hub", "device_id");
var input = "input";
var message = new EdgeMessage.Builder(new byte[0]).Build();
Mock.Get(m2mHandler)
.Setup(h => h.SendModuleToModuleMessageAsync(It.Is <IMessage>(m => m == message), It.Is <string>(s => s == input), It.Is <IIdentity>(i => i == identity)))
.Returns(Task.CompletedTask);
var sut = new DeviceProxy(identity, twinHandler, m2mHandler, c2dHandler, directMethodHandler);
await sut.SendMessageAsync(message, input);
Mock.Get(directMethodHandler).VerifyAll();
}