public async Task CreatesNewMessagePassValidationWithoutId()
{
// Arrange
var message = new Message()
{
Content = "Hello World"
};
var mockService = new Mock <IMessageDbService>();
mockService.Setup(service => service.CreateAsync(message))
.Callback(() => message.Id = 1);
var controller = new MessagesController(mockService.Object);
var result = await controller.CreateAsync(message);
Assert.That(message.Id, Is.GreaterThan(0));
}