public async Task Assign_Should_Return_Ok_When_Tasks_Complete_Normally()
{
string deviceId = "testDeviceId";
CancellationToken token = new CancellationToken();
_rabbitMock.Setup(r => r.SendAssignDeviceMsg(deviceId, token)).Returns(Task.CompletedTask);
_mongoMock.Setup(m => m.InsertDevice(It.IsAny <Device>())).Returns(Task.CompletedTask);
var result = await _controller.Assign(deviceId, token);
Assert.True(result is OkObjectResult);
}