public void CustomToDecimalTest()
{
char[] num = "10".ToCharArray();
decimal saida = rpn.CustomToDecimal(num, 0, num.Length - 1, false);
Assert.AreEqual(saida, (decimal)10);
saida = rpn.CustomToDecimal(num, 0, num.Length - 1, true);
Assert.AreEqual(saida, (decimal) - 10);
num = "0.564345".ToCharArray();
saida = rpn.CustomToDecimal(num, 0, num.Length - 1, false);
Assert.AreEqual(saida, (decimal)0.564345);
num = "0.564345".ToCharArray();
saida = rpn.CustomToDecimal(num, 0, num.Length - 1, true);
Assert.AreEqual(saida, (decimal) - 0.564345);
}