public void ACadamadaDeNegociosDeveNaoRecuperarUmUsuario_DeveRetornarTipoVazio()
{
const string email = "*****@*****.**";
var mockContext = new Mock<IAccountRepository>();
mockContext.Setup(x => x.RecuperarUsuario(email)).Returns((User) null);
_business = new AccountBusiness(mockContext.Object);
var result = _business.VerificarTipoUsuario(email);
StringAssert.AreEqualIgnoringCase(result, "");
}