public void MonederoEquals()
{
//NOTE: Normally we use Assert.AreEqual to test whether two
// objects are equal. But here we are testing the Monedero.Equals()
// method itself, so using AreEqual would not serve the purpose.
Assert.IsFalse(_monedero1.Equals(null));
Assert.IsTrue(_monedero1.Equals(_monedero1));
Monedero equal = new Monedero(new Moneda(12, Divisa.MXN), new Moneda(7, Divisa.USD));
Assert.IsTrue(_monedero1.Equals(equal));
Assert.IsTrue(!_monedero1.Equals(_moneda12MXN));
Assert.IsTrue(!_moneda12MXN.Equals(_monedero1));
Assert.IsTrue(!_monedero1.Equals(_monedero2));
}