public async Task TestGetById()
{
Mock <ISmsRepository> mock = new Mock <ISmsRepository>();
SmsController controller = new SmsController(mock.Object);
mock.Setup(mock => mock.GetById(It.IsAny <Guid>())).ReturnsAsync(new SMS());
SMS sms = await controller.GetById(Guid.NewGuid());
Assert.IsNotNull(sms);
}