/// <summary>
/// pass in stacks returns to console the value of first input in first input out
/// wrapped in try catch block so if error is thrown will catch it and return message to user.
/// </summary>
/// <param name="myQueueWithStacks"></param>
public static void TestDequeue(QueueWithTwoStacks myQueueWithStacks)
{
//make try catch to capture excetion from both stacks being empty
try
{
Console.WriteLine(myQueueWithStacks.Dequeue().Value);
Console.ReadLine();
}
catch (Exception)
{
Console.WriteLine("both stacks are empty nothing to dequeue");
Console.ReadLine();
}
}
static void Main(string[] args)
{
QueueWithTwoStacks <char> queue = new QueueWithTwoStacks <char>();
queue.Enqueue('a');
queue.Enqueue('b');
queue.Enqueue('c');
char head = queue.Dequeue();
Test(head, 'a');
head = queue.Dequeue();
Test(head, 'b');
queue.Enqueue('d');
head = queue.Dequeue();
Test(head, 'c');
queue.Enqueue('e');
head = queue.Dequeue();
Test(head, 'd');
head = queue.Dequeue();
Test(head, 'e');
try
{
head = queue.Dequeue();
Console.WriteLine("Test failed.");
}
catch (InvalidOperationException)
{
Console.WriteLine("Test passed.");
}
}
