static void Main(string[] args)
{
Console.WriteLine("Enter the expression!");
var expression = Console.ReadLine();
try
{
ExpressionCalc calc = new ExpressionCalc();
Console.WriteLine("The result is {0}", calc.Calculate(expression));
}
catch (Exception e)
{
Console.WriteLine("Ooops! {0}", e.Message);
}
Console.ReadKey();
}
public void Zero_for_null_or_empty()
{
Assert.AreEqual(0, calc.Calculate(null));
Assert.AreEqual(0, calc.Calculate(""));
}
