public void Simple_calculation()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
sut.Handle(new ExpandNumber('2'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Addition
});
var rNumber = sut.Handle(new Number());
Assert.Equal(0, rNumber.Number);
var rResult = sut.Handle(new Result());
Assert.Equal(2, rResult.Number);
sut.Handle(new ExpandNumber('3'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Multiplication
});
rNumber = sut.Handle(new Number());
Assert.Equal(0, rNumber.Number);
rResult = sut.Handle(new Result());
Assert.Equal(5, rResult.Number);
}
public void Div_by_zero()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
// 6/0 2=(3)
sut.Handle(new ExpandNumber('6'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Division
});
sut.Handle(new ExpandNumber('0'));
var cResult = sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
Assert.IsType <Failure>(cResult);
sut.Handle(new ExpandNumber('2'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
var rResult = sut.Handle(new Result());
Assert.Equal(3, rResult.Number);
}
public void Equals_followed_by_number()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
// 2+3=(5)4*5=(20)
sut.Handle(new ExpandNumber('2'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Addition
});
sut.Handle(new ExpandNumber('3'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
var rResult = sut.Handle(new Result());
Assert.Equal(5, rResult.Number);
sut.Handle(new ExpandNumber('4'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Multiplication
});
sut.Handle(new ExpandNumber('5'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
rResult = sut.Handle(new Result());
Assert.Equal(20, rResult.Number);
}
public void Equals_followed_by_op()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
// 2+3=(5)-1=(4)
sut.Handle(new ExpandNumber('2'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Addition
});
sut.Handle(new ExpandNumber('3'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
var rResult = sut.Handle(new Result());
Assert.Equal(5, rResult.Number);
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Subtraction
});
sut.Handle(new ExpandNumber('1'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
rResult = sut.Handle(new Result());
Assert.Equal(4, rResult.Number);
}
public void Number_expansion()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
sut.Handle(new ExpandNumber('3'));
sut.Handle(new ExpandNumber('1'));
sut.Handle(new ExpandNumber('4'));
var rNumber = sut.Handle(new Number());
Assert.Equal(314, rNumber.Number);
}
public void Op_replacement()
{
if (Directory.Exists(PATH))
{
Directory.Delete(PATH, true);
}
var sut = new MessageHandling(PATH);
// 2+*3=(6)
sut.Handle(new ExpandNumber('2'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Addition
});
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Multiplication
});
sut.Handle(new ExpandNumber('3'));
sut.Handle(new AppendOperator {
Op = AppendOperator.Operators.Equals
});
var rResult = sut.Handle(new Result());
Assert.Equal(6, rResult.Number);
}