gistfile1.rb

def calcularTotal(monto,tipoCliente,tiempo)
  total = monto.to_f
  if tipoCliente == "A"
    tasa_mensual = 0.04
  elsif tipoCliente == "B"
    tasa_mensual = 0.09
  else
    tasa_mensual = 0.12
  end

  i = 0
  while i < tiempo do
    interes = total * tasa_mensual
    total += interes
    i += 1
  end

  return total.round(2)
end


#--- zona de test ----
def test_calcularTotal
  print validate(112.49, calcularTotal(100,"A",3)) 
  print validate(1677.10, calcularTotal(1000,"B",6)) 
  print validate(8181.55, calcularTotal(2100,"C",12)) 
end

def validate (expected, value)
  expected == value ? "." : "F"
end

def test
  puts "Test de prueba del programa"
  puts "---------------------------"
  test_calcularTotal
  puts " "
end

test