public static void Main()
{
Console.WriteLine("Please, type in an arithmetic expression:");
try
{
var input = Console.ReadLine();
if (string.IsNullOrEmpty(input))
{
Console.WriteLine("The input string is empty!");
return;
}
decimal result = MathProcessor.Calculate(input);
Console.WriteLine($"Expression result: {result}");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return;
}
}
public void ModuloBehaviourUndefinedException()
{
Assert.Throws <ModuloBehaviourUndefinedException>(() => MathProcessor.Calculate("6%0"));
}
public void DivideByZeroException()
{
Assert.Throws <DivideByZeroException>(() => MathProcessor.Calculate("1/0"));
}
public void MismatchedParenthesisException(string expression)
{
Assert.Throws <ExpressionMismatchedParenthesisException>(() => MathProcessor.Calculate(expression));
}
public void CalculateValues(string expression, decimal expected)
{
decimal actual = MathProcessor.Calculate(expression);
Assert.AreEqual(expected, actual);
}
public void ExpressionInvalidCharsException(string expression)
{
Assert.Throws <ExpressionInvalidCharsException>(() => MathProcessor.Calculate(expression));
}