/**

* Created by Battistella Stefano on 31/03/14.

*/

test("CircularBuffer - Write test", function () {

var buffer = new CircularBuffer(10);

buffer.write(0);

buffer.write(0);

buffer.write(0);

buffer.write(0);

for (var i = 0; i < 4; i++)

deepEqual(buffer.read(i), 0, "Write 0");

for (var j = 4; j < 10; j++)

deepEqual(buffer.read(j), undefined, "Write 0");

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

for (var m = 4; m < 12; m++)

deepEqual(buffer.read(m), 1, "Write 1");

for (var n = 2; n < 4; n++)

deepEqual(buffer.read(n), 0, "Write 1");

deepEqual(buffer.isFull(), true, "Is full");

});

test("CircularBuffer - Free test", function () {

var buffer = new CircularBuffer(10);

for (var k = 0; k < 12; k++)

buffer.write(k);

buffer.free(2, 8);

for (var i = 2; i < 8; i++)

deepEqual(buffer.read(i), undefined, "Free 2...8");

deepEqual(buffer.head, 2, "Free 2...8");

deepEqual(buffer.tail, 8, "Free 2...8");

for (var l = 0; l < 12; l++)

buffer.write(l);

deepEqual(buffer.head, 4, "Write 12 items");

deepEqual(buffer.tail, 4, "Write 12 items");

buffer.free(8, 6);

for (var m = 8; m < 6; m = (m + 1) % 10)

deepEqual(buffer.read(m), undefined, "Free 8...6");

deepEqual(buffer.head, 8, "Free 8...6");

deepEqual(buffer.tail, 6, "Free 8...6");

buffer.freeAll();

for (var j = 0; j < 10; j++)

deepEqual(buffer.read(j), undefined, "Free all");

deepEqual(buffer.isEmpty(), true, "Is empty");

});

test("CircularBuffer - Empty test", function () {

var buffer = new CircularBuffer(10);

buffer.write(0);

buffer.write(0);

buffer.write(0);

deepEqual(buffer.isEmpty(), false, "Is not empty");

buffer.free(0, 8);

deepEqual(buffer.isEmpty(), true, "Is empty");

});

test("CircularBuffer - Clone test", function () {

var buffer = new CircularBuffer(10);

for (var i = 0; i < 15; i++)

buffer.write(i);

var clone = buffer.clone();

for (var j = 0; j < 9; j++)

deepEqual(clone.read(j), buffer.read(j), "Check items");

deepEqual(clone.head, buffer.head, "Check head position");

deepEqual(clone.tail, buffer.tail, "Check tail position");

deepEqual(clone.isEmpty(), buffer.isEmpty(), "Check empty");

deepEqual(clone.isFull(), buffer.isFull(), "Check empty");

});

test("CircularBuffer - Resize test", function () {

var buffer = new CircularBuffer(5);

for (var i = 0; i < 8; i++)

buffer.write(i);

var clone = buffer.clone();

buffer.resize(10);

deepEqual(buffer.head, 8, "Check head position");

deepEqual(buffer.tail, 3, "Check tail position");

for (var j = 0; j < 10; j++)

if (j < 3 || j > 7)

deepEqual(buffer.read(j), undefined, "Increase size");

else

deepEqual(buffer.read(j), j, "Augment resize");

buffer = clone;

buffer.resize(3);

deepEqual(buffer.head, 0, "Check head position");

deepEqual(buffer.tail, 0, "Check tail position");

for (var k = 0; k < 3; k++)

deepEqual(buffer.read(k), k + 3, "Decrease size");

});

test("CircularBuffer - Iterator test", function () {

var buffer = new CircularBuffer(10);

var it = buffer.getIterator();

it.first();

deepEqual(it.isDone(), true, "Check empty buffer iterator");

buffer.write(0);

buffer.write(0);

buffer.write(0);

buffer.write(0);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

buffer.write(1);

var result = [0, 0, 1, 1, 1, 1, 1, 1, 1, 1];

var i = 0;

for (it.first(); !it.isDone(); it.next(), i++)

deepEqual(it.getItem(), result[i], "Check iterator");

});