public void CanThrowExceptionIfThereIsNothingToDequeue()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
Assert.Throws <Exception>(() => ps.PseudoQueueDequeue());
}
public void CanEnqueueOneNodeToPseudoQueue()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Node <string> node1 = new Node <string>("One");
myPseudoQueue.Enqueue(node1);
Assert.Equal("One", myPseudoQueue.Peek().Value);
}
public void CanInstantiatePseudoQueue()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
bool expected = ps.FirstStack.IsEmpty();
Assert.True(expected);
}
public void CanInsertNodeIntoAPseudoQueue()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
ps.PseudoQueueEnqueue(23);
int expected = ps.FirstStack.Top.Value;
Assert.Equal(23, expected);
}
public void DequeueWhileQueueIsEmptyWillReturnNull()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Node <string> node1 = new Node <string>("One");
myPseudoQueue.Enqueue(node1);
myPseudoQueue.Dequeue();
Node <string> recoveredData = myPseudoQueue.Dequeue();
Assert.Null(recoveredData);
}
public void PseudoQueueIsEmptyAfterLastPop()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
ps.PseudoQueueEnqueue(20);
ps.PseudoQueueDequeue();
bool actual = ps.FirstStack.IsEmpty();
Assert.True(actual);
}
public void CanDequeueASingleNodeValueFromPseudoQueue()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
ps.PseudoQueueEnqueue(20);
int expected = 20;
int actual = ps.PseudoQueueDequeue();
Assert.Equal(actual, expected);
}
public void CanEnqueueMultipleNodesToPseudoQueue()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Node <string> node1 = new Node <string>("One");
Node <string> node2 = new Node <string>("Two");
Node <string> node3 = new Node <string>("Three");
myPseudoQueue.Enqueue(node1);
myPseudoQueue.Enqueue(node2);
myPseudoQueue.Enqueue(node3);
Assert.Equal("Three", myPseudoQueue.Peek().Value);
}
public void CanRecoverDataFromDequeuedNode()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Node <string> node1 = new Node <string>("One");
Node <string> node2 = new Node <string>("Two");
Node <string> node3 = new Node <string>("Three");
myPseudoQueue.Enqueue(node1);
myPseudoQueue.Enqueue(node2);
myPseudoQueue.Enqueue(node3);
Node <string> recoveredData = myPseudoQueue.Dequeue();
Assert.Equal("Three", recoveredData.Value);
}
public void CanDequeueFirstNodeValueFromPseudoQueueWithMultipleNodes()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
ps.PseudoQueueEnqueue(5);
ps.PseudoQueueEnqueue(10);
ps.PseudoQueueEnqueue(15);
ps.PseudoQueueEnqueue(20);
int expected = 20;
int actual = ps.PseudoQueueDequeue();
Assert.Equal(actual, expected);
}
public void CanDequeueAllNodesFromPseudoQueue()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Node <string> node1 = new Node <string>("One");
Node <string> node2 = new Node <string>("Two");
Node <string> node3 = new Node <string>("Three");
myPseudoQueue.Enqueue(node1);
myPseudoQueue.Enqueue(node2);
myPseudoQueue.Enqueue(node3);
myPseudoQueue.Dequeue();
myPseudoQueue.Dequeue();
myPseudoQueue.Dequeue();
Assert.Null(myPseudoQueue.Peek());
}
public void CanInsertMulitpleNodesIntoAPseudoQueue()
{
MyPseudoQueue ps = new MyPseudoQueue();
ps.PseudoQueue();
ps.PseudoQueueEnqueue(20);
ps.PseudoQueueEnqueue(15);
ps.PseudoQueueEnqueue(10);
ps.PseudoQueueEnqueue(5);
int[] expected =
{
ps.FirstStack.Top.Next.Next.Next.Value,
ps.FirstStack.Top.Next.Next.Value,
ps.FirstStack.Top.Next.Value,
ps.FirstStack.Top.Value
};
int[] actual = { 5, 10, 15, 20 };
Assert.Equal(actual, expected);
}
public void CanInstantiateEmptyPseudoQueue()
{
MyPseudoQueue <string> myPseudoQueue = new MyPseudoQueue <string>();
Assert.Null(myPseudoQueue.Peek());
}