public void Div_DivideByZero_ThrowsException()
{
var calc = new StackCalculator();
calc.Push(20);
calc.Push(0);
Exception e = Assert.Throws<DivideByZeroException>(() => calc.Div());
}
public void Div_DividingValues_ValuesDivided()
{
var calc = new StackCalculator();
calc.Push(200);
calc.Push(100);
calc.Div();
Expect(calc.Pop(), Is.EqualTo(200 / 100));
}
public void Add_AddingValues_ValuesAdded()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Add();
Expect(calc.Pop(), Is.EqualTo(300));
}
public void Clear_ClearingData_DataCleared()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Clear();
Expect(calc.Size, Is.EqualTo(0) );
}
static void Main(string[] args)
{
IStackCalculator sc = new StackCalculator();
sc.Push(12);
sc.Pop();
Console.WriteLine("There are {0} values in the stack",sc.Size);
sc.Push(10);
sc.Push(20);
sc.Push(30);
Console.WriteLine("The 3 values in the stack are: {0} {1} {2}",sc[0],sc[1],sc[2]);
Console.WriteLine("Badaboom!");
}
public void Mul_MultiplyingWhereStackCountIsLessThanTwo_ThrowsException()
{
var calc = new StackCalculator();
calc.Push(200);
Exception e = Assert.Throws<ArgumentException>(() => calc.Mul());
}
public void Mul_MultiplyingValues_ValuesMultiplied()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Mul();
Expect(calc.Pop(), Is.EqualTo(200*100));
}
public void Index_ReturningValue_ValueReturned()
{
var calc = new StackCalculator();
calc.Push(10);
Expect(calc[0], Is.EqualTo(10));
}
public void Index_IndexOutOfRange_ThrowsException()
{
var calc = new StackCalculator();
calc.Push(200);
var i = calc[10];
}
public void Add_AddingWhereStackCountIsLessThanTwo_ThrowsException()
{
var calc = new StackCalculator();
calc.Push(100);
Exception e = Assert.Throws<ArgumentException> ( () => calc.Add() );
}
public void Swap_SwapValues_ValuesSwaped()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Swap();
Expect(calc.Pop(), Is.EqualTo(100));
}
public void Sub_SubstractingValues_ValuesSubstracted()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Sub();
Expect(calc.Pop(), Is.EqualTo(200-100));
}
public void RotateUp_MoveUpValues_ValuesMovedUp()
{
var calc = new StackCalculator();
calc.Push(20);
calc.Push(30);
calc.Push(40);
calc.RotateUp();
Assert.AreEqual(calc.Pop(),30);
}
public void RotateDown_MoveDownValues_ValuesMovedDown()
{
var calc = new StackCalculator();
calc.Push(20);
calc.Push(30);
calc.Push(40);
calc.Push(50);
calc.RotateDown();
Assert.AreEqual(calc.Pop(),20);
}
public void Push_PushingValue_ValuePushed()
{
var calc = new StackCalculator();
calc.Push(100);
Expect(calc.Size,Is.EqualTo(1));
}
public void Pop_PopsValue_ValuePopped()
{
var calc = new StackCalculator();
calc.Push(100);
calc.Push(200);
calc.Push(100);
calc.Pop();
Expect(calc.Size, Is.EqualTo(2));
}