public void NaoDeveAceitarDobrarOLanceDoMesmoUsuario()
{
Leilao leilao = new Leilao("Macbook Pro 15");
Usuario steveJobs = new Usuario("Steve Jobs");
leilao.DobraLance(steveJobs);
Assert.AreEqual(0, leilao.Lances.Count);
}
public void DeveAceitarDobrarOLanceDeUsuariosDiferentes()
{
Leilao leilao = new Leilao("Macbook Pro 15");
Usuario steveJobs = new Usuario("Steve Jobs");
Usuario billGates = new Usuario("Bill Gates");
leilao.Propoe(new Lance(steveJobs, 2000));
leilao.Propoe(new Lance(billGates, 3000));
leilao.DobraLance(steveJobs);
Assert.AreEqual(4000, leilao.Lances[2].Valor, 0.00001);
}