public void ToDecorators()
{
_currencies.Set(_gold, 1f);
_currencies.Set(_copper, 10f);
var decs = _currencies.ToDecorators();
Assert.AreEqual(_gold, decs[0].currency);
Assert.AreEqual(1f, decs[0].amount);
Assert.AreEqual(_copper, decs[1].currency);
Assert.AreEqual(10f, decs[1].amount);
}