public void Calculate_SingleValue()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("5");
result.Should().Be(5);
}
public void Calculate_SingleDivide()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("20 5 /");
result.Should().Be(4);
}
public void Calculate_SingleMultiply()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("5 6 *");
result.Should().Be(30);
}
public void Calculate_SingleSubtract()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("5 6 -");
result.Should().Be(-1);
}
public void Calculate_NestedAdd()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("1 2 + 3 4 + +");
result.Should().Be(10);
}
public void Calculate_SingleAdd()
{
var target = new ReversePolishCalculator();
var result = target.Calculate("5 6 +");
result.Should().Be(11);
}
public void Calculate_Mixed()
{
// (1 + 2) * (15 / 5) = 9
var target = new ReversePolishCalculator();
var result = target.Calculate("1 2 + 15 5 / *");
result.Should().Be(9);
}
public void Calculate_SpareWhiteSpace_WrongSpaceException()
{
Assert.That(() => reversePolishCalculator.Calculate("1 2+"), Throws.TypeOf <WrongSpaceException>());
}
