public void StackEmptyandGetCount()
{
int maxSize = 100;
var myStack = new MyStack(maxSize);
Assert.AreEqual(0, myStack.GetCount());
}
public void StackPushGetCount()
{
int maxSize = 100;
var myStack = new MyStack(maxSize);
myStack.Push(1);
Assert.AreEqual(1, myStack.GetCount());
}
public string ToPostfix(string inFix)
{
MyStack postFix = new MyStack(inFix.Length);
MyStack operators = new MyStack(inFix.Length);
char popUpOperator;
foreach (char c in inFix.ToCharArray())
{
if (Char.IsLetterOrDigit(c))
{
postFix.Push(c);
}
else if (c == '(')
{
operators.Push(c);
}
else if (c == ')')
{
popUpOperator = (char)operators.Pop();
while (popUpOperator != '(')
{
postFix.Push(popUpOperator);
popUpOperator = (char)operators.Pop();
}
}
else
{
if (!(operators.IsEmpty()) && HigherOperatorPriority((char)operators.Peek(), c))
{
popUpOperator = (char)operators.Pop();
while (HigherOperatorPriority(popUpOperator, c))
{
postFix.Push(popUpOperator);
if (operators.IsEmpty())
{
break;
}
popUpOperator = (char)operators.Pop();
}
operators.Push(c);
}
else
{
operators.Push(c);
}
}
}
while (operators.GetCount() > 0)
{
popUpOperator = (char)operators.Pop();
postFix.Push(popUpOperator);
}
return(postFix.ItemToString());
}
public void StackPush3ItemGetCount()
{
int maxSize = 100;
var myStack = new MyStack(maxSize);
myStack.Push(1);
myStack.Push("1");
myStack.Push("A");
Assert.AreEqual(3, myStack.GetCount());
}
public void StackPush3ItemAndPopGetCount()
{
int maxSize = 100;
var myStack = new MyStack(maxSize);
myStack.Push(1);
myStack.Push("1");
myStack.Push("A");
var obj = myStack.Pop();
Assert.AreEqual("A", obj);
Assert.AreEqual(2, myStack.GetCount());
}