public static void Main(string[] args)
{
MathNode[] nodes = Parser.Parse(args);
Fraction result = MathRunner.Calculate(nodes);
Console.WriteLine("= " + result.ToConsoleOutput());
}
public void Parse3Subtract()
{
string[] values = new string[] { "3_1/2", "-", "1_1/2" };
MathNode[] parsed = Parser.Parse(values);
Fraction result = MathRunner.Calculate(parsed);
Fraction expected = Fraction.FromString("2");
Assert.Equal(expected, result);
}
public void InvalidInputThrowsTrailingFraction()
{
string[] values = new string[] { "3_1/2", "+", "1_1/2", "1/4" };
MathNode[] parsed = Parser.Parse(values);
Exception ex = Assert.Throws <InvalidOperationException>(() => MathRunner.Calculate(parsed));
}
public void DivideByZero()
{
string[] values = new string[] { "3", "/", "0" };
MathNode[] parsed = Parser.Parse(values);
Exception ex = Assert.Throws <InvalidOperationException>(() => MathRunner.Calculate(parsed));
}
