static void Main(string[] args)
{
IQueue <int> q = new ArrayQueue <int>(10);
for (int i = 0; i < 10; i++)
{
q.Enqueue(i);
}
print(q);
q.Enqueue(10);
print(q);
q.Enqueue(11);
print(q);
for (int i = 12; i < 100; i++)
{
q.Enqueue(i);
}
print(q);
Console.WriteLine();
Random r = new Random();
for (int i = 0; i < length; i++)
{
arr[i] = r.NextDouble();
}
Console.WriteLine("testing measurement functions");
Diagnostics.MeasureAndPrintToConsole("Random for loop", 10, MeasureMerge);
Diagnostics.MeasureAndPrintToConsole("Random for loop", 10, MeasureBubble);
Console.ReadKey();
}
public void Setup()
{
ArrayQueue.Enqueue("Phil");
ArrayQueue.Enqueue("Bob");
ArrayQueue.Enqueue("Marry");
ArrayQueue.Enqueue("Bobby");
}
public void EnqueueAndDequeue()
{
var students = new Student[]
{
new Student {
No = 1, Name = "李1", Score = 22.1
},
new Student {
No = 2, Name = "李2", Score = 32.3
},
new Student {
No = 3, Name = "李3", Score = 42.5
},
new Student {
No = 4, Name = "李4", Score = 45
}
};
var arrayQueue = new ArrayQueue <Student>(3);
foreach (var student in students)
{
var result = arrayQueue.Enqueue(student);
}
var deqStudent = new Student();
arrayQueue.Dequeue(out deqStudent);
arrayQueue.Enqueue(students[3]);
}
public void EnqueuingAfterClearingCollection()
{
var stack = new ArrayQueue <int>();
int itemCount = 500000;
for (int i = 0; i < itemCount; i++)
{
stack.Enqueue(i);
}
stack.Clear();
for (int i = 0; i < itemCount; i++)
{
stack.Enqueue(i);
}
int trueCount = 0;
int lastItem = int.MinValue;
foreach (var item in stack)
{
if (lastItem > item)
{
Assert.Fail();
}
lastItem = item;
trueCount++;
}
Assert.IsTrue(stack.Count == itemCount &&
stack.Count == trueCount);
}
private void BreadthFirstSearch(LinkedList.LinkedList <T> visitedNodes)
{
IQueue <int> queue = new ArrayQueue <int>(_nodes.Count);
bool[] visited = new bool[_nodes.Count];
bool[] inqueue = new bool[_nodes.Count];
queue.Enqueue(0);
inqueue[0] = true;
while (!queue.IsEmpty())
{
var n = queue.Dequeue();
visited[n] = true;
inqueue[n] = false;
visitedNodes.Insert(_nodes[n]);
foreach (var v in GetAdjacentVertices(n))
{
if (!visited[v] && !inqueue[v])
{
queue.Enqueue(v);
inqueue[v] = true;
}
}
}
}
public void EnqueueTest() {
for (int i = 0; i < 6; i++) {
queue.Enqueue(i);
}
Assert.AreEqual("{0, 1, 2, 3, 4, 5}", queue.ToString());
}
public void intNumbEnter()
{
//arrange
int[] expected_ar = { 5, 6, 7 };
//act
ArrayQueue <int> arr = new ArrayQueue <int>(3);
arr.Enqueue(5);
arr.Enqueue(6);
arr.Enqueue(7);
int[] actual_ar = new int[3];
int i = 0;
while (!arr.IsEmpty())
{
actual_ar[i] = arr.Peek();
arr.Dequeue();
i++;
}
//foreach(var elem in arr)
//{
// actual_ar[i] = elem;
// i++;
//}
//assert
Assert.AreEqual(true, arr.isEmpty);
CollectionAssert.AreEqual(expected_ar, actual_ar);
}
public void AddFiveItemsAndVerify()
{
int linkedListQueueLast = 0;
int arrayQueueLast = 0;
for (int i = 1; i <= 5; i++)
{
linkedListQueue.Enqueue(i);
arrayQueue.Enqueue(i);
}
Assert.AreEqual(linkedListQueue.Peek(), 1, "invalid top element");
Assert.AreEqual(linkedListQueue.Count, 5, "invalid count");
Assert.AreEqual(arrayQueue.Peek(), 1, "invalid top element");
Assert.AreEqual(arrayQueue.Count, 5, "invalid count");
while (linkedListQueue.Count > 0)
{
linkedListQueueLast = linkedListQueue.Dequeue();
arrayQueueLast = arrayQueue.Dequeue();
}
Assert.AreEqual(linkedListQueueLast, 5, "invalid last element");
Assert.AreEqual(arrayQueueLast, 5, "invalid last element");
}
static void Main(string[] args)
{
var arrayQueue = new ArrayQueue <string>();
arrayQueue.Enqueue("1");
arrayQueue.Enqueue("2");
arrayQueue.Enqueue("3");
arrayQueue.Enqueue("4");
arrayQueue.Enqueue("5");
arrayQueue.Dequeue();
arrayQueue.Dequeue();
arrayQueue.Dequeue();
arrayQueue.Dequeue();
var linkedListQueue = new LinkedListQueue <string>();
linkedListQueue.Enqueue("1");
linkedListQueue.Enqueue("2");
linkedListQueue.Enqueue("3");
linkedListQueue.Enqueue("4");
linkedListQueue.Enqueue("5");
linkedListQueue.Dequeue();
linkedListQueue.Dequeue();
linkedListQueue.Dequeue();
linkedListQueue.Dequeue();
}
static void Main(string[] args)
{
int count = 1;
ArrayQueue <string> arr = new ArrayQueue <string>(count);
string s = "cfvfd";
for (int i = 0; i < count; i++)
{
arr.Enqueue("элемент" + i);
}
IEnumerator <string> el1 = arr.GetEnumerator();
arr.Enqueue(s);
arr.Enqueue(s);
arr.Enqueue(s);
arr.Enqueue(s);
foreach (string el in arr)
{
Console.WriteLine(el);
}
Console.WriteLine("//--//--//");
Console.WriteLine();
Console.WriteLine(arr.Dequeue());
// Console.WriteLine(arr.Peek());
// arr.Clear();
Console.ReadLine();
}
private static void ArrayQueueExercise()
{
try
{
ArrayQueue qArray = new ArrayQueue(4);
qArray.Enqueue(10);
qArray.Enqueue(20);
qArray.Enqueue(30);
qArray.Enqueue(40);
Console.WriteLine(qArray.ToString());
Console.WriteLine($"Peek {qArray.Peek()}");
Console.WriteLine($"Is Empty {qArray.isEmpty()}");
Console.WriteLine($"Is full {qArray.isFull()}");
Console.WriteLine(qArray.Dequeue());
Console.WriteLine(qArray.Dequeue());
qArray.Enqueue(50);
Console.WriteLine(qArray.Dequeue());
Console.WriteLine(qArray.Dequeue());
Console.WriteLine(qArray.Dequeue());
Console.WriteLine(qArray.Dequeue());
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public void TestToStringReturnsCorrectValue()
{
var queue = new ArrayQueue <int>(10);
queue.Enqueue(1);
queue.Enqueue(2);
Assert.AreEqual("1,2", queue.ToString());
}
public void EnqueueForArrayQueue_ShouldAddItemToTeQueue()
{
// Arrange
_arrayQueue.Enqueue(3);
// Act
// Assert
Assert.IsFalse(_arrayQueue.IsEmpty);
}
public void TestEnqueueFullQueueThrows()
{
var queue = new ArrayQueue <int>(1);
queue.Enqueue(1);
var ex = Assert.Throws <InvalidOperationException>(() => queue.Enqueue(2));
Assert.AreEqual("Queue is full", ex.Message);
}
public void Peek_EnqueueTwoItems_ReturnsHeadItem()
{
var queue = new ArrayQueue <int>();
queue.Enqueue(1);
queue.Enqueue(2);
Assert.AreEqual(1, queue.Peek());
}
public void Enqueue_ValidParamsPassed_Success()
{
IQueue <int> queue = new ArrayQueue <int>(5);
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
Assert.That(queue, Is.EquivalentTo(new int[] { 1, 2, 3 }));
}
public void ArrayQueue_Enqueue_AddsElementAtFront()
{
var queue = new ArrayQueue <string>();
queue.Enqueue("cat");
queue.Enqueue("dog");
queue.Enqueue("catdog");
Assert.AreEqual(3, queue.Size);
Assert.AreEqual("cat", queue.Front);
}
public void Enqueue_Get_Count_When_Only_Enqueue()
{
var queue = new ArrayQueue <int>(5);
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
Assert.Equal(3, queue.Count);
}
public void EnumerateElements_SmallChain_Success()
{
IQueue <int> queue = new ArrayQueue <int>(5);
queue.Enqueue(3);
queue.Enqueue(1);
queue.Enqueue(4);
Assert.That(queue, Is.EquivalentTo(new int[] { 3, 1, 4 }));
}
public void QueueIsEnptyWhenAllElementsAreRemoved()
{
var sut = new ArrayQueue <int>();
sut.Enqueue(1);
sut.Enqueue(2);
Assert.Equal(1, sut.Dequeue());
Assert.Equal(2, sut.Dequeue());
Assert.True(sut.IsEmpty);
}
public void EnqueueTwoItems_DequequeOne_PeakShouldBeEqualToLastItem()
{
var queue = new ArrayQueue <int>();
queue.Enqueue(1);
queue.Enqueue(2);
queue.Dequeue();
Assert.AreEqual(2, queue.Peek());
}
public void NonEmptyQueueReadsNotEmptyTest()
{
ArrayQueue target = new ArrayQueue();
target.Enqueue(0);
for (int i = 0; i < 1000000 && !target.IsFull; i++)
{
target.Enqueue(i);
Assert.IsFalse(target.IsEmpty, string.Format("ArrayQueue reads as empty after adding {0} objects and never removing any", i + 1));
}
}
public void Peek_EnqueueTwoItemsAndDequeue_ReturnsHeadElement()
{
var queue = new ArrayQueue <int>();
queue.Enqueue(1);
queue.Enqueue(2);
queue.Dequeue();
Assert.AreEqual(2, queue.Peek());
}
public void Enqueue_QueueOverflow_Failure()
{
IQueue <int> queue = new ArrayQueue <int>(2);
queue.Enqueue(3);
queue.Enqueue(1);
Assert.Throws <InvalidOperationException>(() =>
{
queue.Enqueue(4);
});
}
public void Capacity_EnqueueManyItems_DoubledCapacity()
{
var queue = new ArrayQueue <int>();
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
queue.Enqueue(4);
queue.Enqueue(5);
Assert.AreEqual(8, queue.Capacity);
}
public void Enqueue_When_Full()
{
var queue = new ArrayQueue <int>(4);
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
queue.Enqueue(4);
Exception ex = Assert.Throws <InvalidOperationException>(() => queue.Enqueue(5));
Assert.IsType <InvalidOperationException>(ex);
}
public void Dequeue_OK_When_Not_Empty()
{
var queue = new ArrayQueue <int>(4);
queue.Enqueue(1);
queue.Enqueue(2);
queue.Enqueue(3);
queue.Enqueue(4);
int item = queue.Dequeue();
Assert.Equal(1, item);
}
public void TestGrow()
{
ArrayQueue <string> queue = new ArrayQueue <string>(3, 5);
Assert.AreEqual(3, queue.Capacity);
queue.Enqueue("a");
queue.Enqueue("b");
Assert.AreEqual(3, queue.Capacity);
queue.Enqueue("c");
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
{
queue.Enqueue("" + ('d' + i));
}
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
{
queue.Dequeue();
}
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
{
queue.Enqueue("" + ('d' + i));
}
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
{
queue.Dequeue();
}
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
{
queue.Enqueue("" + ('d' + i));
}
Assert.AreEqual(8, queue.Capacity);
queue.Enqueue("z");
Assert.AreEqual(13, queue.Capacity);
queue.Clear();
Assert.AreEqual(13, queue.Capacity);
for (int i = 0; i < 12; i++)
{
queue.Enqueue("" + ('a' + i));
}
Assert.AreEqual(13, queue.Capacity);
queue.Clear();
Assert.AreEqual(13, queue.Capacity);
for (int i = 0; i < 12; i++)
{
queue.Enqueue("" + ('a' + i));
}
Assert.AreEqual(13, queue.Capacity);
}
/// <summary>
/// Add the the specified item to the cache. Returns 'true' if
/// an item of the same value was not found.
/// </summary>
public bool Add(TValue item)
{
_lock.Take();
// does the item already exist in the cache?
int count;
if (_lookup.TryGetValue(item, out count))
{
// yes, add the item to the end of the queue
_queue.Enqueue(item);
// increment the number of duplicate items in the lookup
_lookup[item] = count + 1;
_lock.Release();
return(false);
}
else
{
// add the item to the current queue
_queue.Enqueue(item);
// add the item to the lookup
_lookup.Add(item, 1);
// has the max number of items been reached?
if (_lookup.Count > MaxCount)
{
// yes, dequeue an item
_queue.Next();
// remove it from the lookup if not already removed
if (_lookup.TryGetValue(_queue.Current, out count))
{
if (count == 1)
{
_lookup.Remove(_queue.Current);
}
else
{
_lookup[_queue.Current] = count - 1;
}
}
}
_lock.Release();
return(true);
}
}
public void EnqueueToFullQueueThrowsQueueFullExceptionTest()
{
ArrayQueue target = new ArrayQueue();
Assert.IsFalse(target.IsFull);
int i;
for (i = 0; i < 1000000 && !target.IsFull; i++)
{
target.Enqueue(i);
}
Assert.IsTrue(target.IsFull, "Added 1000000 elements to ArrayQueue and it still doesn't return IsFull=true");
target.Enqueue(0);
Assert.Fail("Enqueue to full queue didn't throw QueueEmptyException");
}
public void TestGrow()
{
ArrayQueue<string> queue = new ArrayQueue<string>(3, 5);
Assert.AreEqual(3, queue.Capacity);
queue.Enqueue("a");
queue.Enqueue("b");
Assert.AreEqual(3, queue.Capacity);
queue.Enqueue("c");
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
queue.Enqueue("" + ('d' + i));
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
queue.Dequeue();
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
queue.Enqueue("" + ('d' + i));
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
queue.Dequeue();
Assert.AreEqual(8, queue.Capacity);
for (int i = 0; i < 4; i++)
queue.Enqueue("" + ('d' + i));
Assert.AreEqual(8, queue.Capacity);
queue.Enqueue("z");
Assert.AreEqual(13, queue.Capacity);
queue.Clear();
Assert.AreEqual(13, queue.Capacity);
for (int i = 0; i < 12; i++)
queue.Enqueue("" + ('a' + i));
Assert.AreEqual(13, queue.Capacity);
queue.Clear();
Assert.AreEqual(13, queue.Capacity);
for (int i = 0; i < 12; i++)
queue.Enqueue("" + ('a' + i));
Assert.AreEqual(13, queue.Capacity);
}
public void TestRemove()
{
ArrayQueue<string> queue = new ArrayQueue<string>(3,3);
queue.Enqueue("0");
queue.Enqueue("x");
for (int i=1;i<100;i++)
{
queue.Enqueue(""+i);
queue.Enqueue("x");
queue.RemoveAt(queue.Count-3);
queue[queue.Count-3] = queue[queue.Count-3]+"!";
}
for (int i = 0; i < 99; i++)
{
Assert.AreEqual(i + "!", queue[i]);
}
}
public void TestRemoveAt1()
{
ArrayQueue<object> queue = new ArrayQueue<object>(100, 3);
for (int i = 1; i <= 16000; i++)
{
Assert.AreEqual(i, queue.Enqueue(i.ToString()));
}
Assert.AreEqual(16000, queue.Count);
for (int i = 1; i <= 200; i++)
{
Assert.IsTrue(queue.Remove((500+i).ToString()));
Assert.AreEqual(16000 - i, queue.Count);
}
for (int i = 1; i <= 100; i++)
{
Assert.IsTrue(queue.Remove(i.ToString()));
Assert.AreEqual((16000-200) - i, queue.Count);
}
Assert.IsFalse(queue.Remove(16001.ToString()));
for (int i = queue.Count; i-- > 0; )
{
queue.Dequeue();
}
Assert.AreEqual(0, queue.Count);
}
static void test8()
{
ArrayQueue<int> queue = new ArrayQueue<int>(3);
queue.Enqueue(1);
queue.Enqueue(2);
queue.Dequeue();
queue.Enqueue(3);
queue.Dequeue();
queue.Enqueue(4);
Console.WriteLine(queue.Dequeue());
Console.WriteLine(queue.Dequeue());
Console.WriteLine(queue.Dequeue());
Console.WriteLine(queue.Dequeue());
Console.WriteLine(queue.Dequeue());
Console.WriteLine(queue.Dequeue());
}
public void TestRemoveAt2()
{
ArrayQueue<object> queue = new ArrayQueue<object>(100, 3);
int dataSize = 16000;
List<object> list = new List<object>();
for (int i = 1; i <= dataSize; i++)
{
object o = new object();
list.Add(o);
queue.Add(o);
}
Assert.AreEqual(list.Count, queue.Count);
foreach (object item in queue)
{
Assert.IsNotNull(item);
}
Random rand = new Random((int)(DateTime.UtcNow.Ticks/1000));
for (int i = 0; i < list.Count; i++)
{
int r = rand.Next(0, list.Count - 1);
object temp = list[i];
list[i] = list[r];
list[r] = temp;
}
foreach (object item in list)
{
Assert.IsTrue(queue.Remove(item));
queue.Enqueue(item);
Assert.IsTrue(queue.Remove(item));
Assert.IsFalse(queue.Remove(item));
}
Assert.AreEqual(0, queue.Count);
}