public void ThrowWhenUnspportedOperation()
{
var calculator = new ConsoleCalculator.Calculator();
Assert.That(() => calculator.Calculate(1, 1, "+"),
Throws.TypeOf <CalculationOperationNotSupportedException>());
Assert.That(() => calculator.Calculate(1, 1, "+"),
Throws.TypeOf <CalculationOperationNotSupportedException>()
.With.Property("Operation").EqualTo("+"));
//fail
//Assert.That(() => calculator.Calculate(1, 1, "+"),
// Throws.TypeOf<CalculationException>());
Assert.That(() => calculator.Calculate(1, 1, "+"),
Throws.InstanceOf <CalculationException>());
}
static void Main(string[] args)
{
string val = "";
string next = "Operand 1";
double result = 0;
Console.WriteLine("This calculator can perform adding, subtraction, division and multiplication.");
Console.WriteLine("You can use '+', '-', '/', '*' and '=' for calculations.");
Console.WriteLine("Press 'x' for exit, 'c' for clear.");
Console.WriteLine("------------------------------------------------------------------------");
Console.WriteLine("");
Calculator calc = new Calculator();
do
{
if ((next == "Operator 1") || (next == "Operator 2"))
Console.Write("Enter operator: ");
else
Console.Write("Enter value: ");
val = Console.ReadLine();
if (CheckIfExit(val)) // проверяем не введен ли 'x'
{ next = "Exit"; }
else if (CheckIfClear(val)) // проверяем не введено ли 'c'
{
calc.SetInitialValues(); //обнуляем все переменные
Console.WriteLine("");
Console.WriteLine("All entered data removed.");
Console.WriteLine("");
next = "Operand 1";
}
else
{
calc.ToCalculate = string.Format("{0} {1}", calc.ToCalculate, val);
Console.WriteLine("");
switch (next)
{
case "Operand 1":
{
calc.Val1 = double.Parse(val);
next = "Operator 1";
continue;
}
case "Operator 1":
{
if (CheckIfOperator(val))
{
calc.Operator = val;
next = "Operand 2";
}
else
{
Console.WriteLine("You entered incorrect operator: '{0}'!", val);
}
continue;
}
case "Operand 2":
{
calc.Val2 = double.Parse(val);
result = calc.GetResult();
next = "Operator 2";
continue;
}
case "Operator 2":
{
if (val == "=")
{
Console.WriteLine("{0} {1}", calc.ToCalculate, result);
Console.WriteLine("");
calc.SetInitialValues();
next = "Operand 1";
}
else if (CheckIfOperator(val)) // проверяем является ли введённое значение оператором (+, -, *, /)
{
calc.Val1 = result;
next = "Operand 2";
}
else
{
Console.WriteLine("You entered incorrect operator: '{0}'!", val);
}
calc.Operator = val;
continue;
}
}
}
}
while (next != "Exit");
return;
}