<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test-pre.js"></script>
</head>
<body>
<a id="a" rel="a b c"></a>
<area id="area" rel="a b c"></area>
<link id="link" rel="a b c">
<script>
description('Tests that relList works on anchor, area and link elements');

var element;
var type;
var observer;

function createElement(rel)
{
    element = document.createElement(type);
    element.rel = rel;
}

function test() 
{
    element = document.getElementById(type);
    shouldBeFalse('element.relList == null');
    shouldBeFalse('element.relList == undefined');
    shouldBeTrue('element.relList instanceof DOMTokenList');
    shouldBe('element.relList.length', '3');
    shouldBeTrue('element.relList.contains("a")');
    shouldBeTrue('element.relList.contains("b")');
    shouldBeTrue('element.relList.contains("c")');
    shouldBeFalse('element.relList.contains("d")');

    createElement("foo bar chocolate");
    shouldBe('element.relList.length', '3');
    shouldBeTrue('element.relList.contains("foo")');
    shouldBeTrue('element.relList.contains("bar")');
    shouldBeTrue('element.relList.contains("chocolate")');
    shouldBeFalse('element.relList.contains("orange")');

    element.removeAttribute('rel');
    shouldBe('element.relList.length', '0');
    
    element.setAttribute('rel', '');
    shouldBe('element.relList.length', '0');

    element.setAttribute('rel', 'marshmallow chips');
    shouldBe('element.relList.length', '2');
    shouldBeTrue('element.relList.contains("marshmallow")');
    shouldBeTrue('element.relList.contains("chips")');
    shouldBeFalse('element.relList.contains("orange")');

    createElement('x');
    element.relList = 'y';
    shouldBeEqualToString('String(element.relList)', 'y');

    createElement('');
    shouldEvaluateTo('element.relList.length', 0);

    createElement('x');
    shouldEvaluateTo('element.relList.length', 1);

    createElement('x x');
    shouldEvaluateTo('element.relList.length', 1);

    createElement('x y');
    shouldEvaluateTo('element.relList.length', 2);

    createElement('');
    element.relList.add('x');
    shouldBeEqualToString('element.rel', 'x');

    createElement('x');
    element.relList.add('x');
    shouldBeEqualToString('element.rel', 'x');

    createElement('x  x');
    element.relList.add('x');
    shouldBeEqualToString('element.rel', 'x');

    createElement('y');
    element.relList.add('x');
    shouldBeEqualToString('element.rel', 'y x');

    createElement('');
    element.relList.remove('x');
    shouldBeEqualToString('element.rel', '');

    createElement('x');
    element.relList.remove('x');
    shouldBeEqualToString('element.rel', '');

    createElement(' y x  y ');
    element.relList.remove('x');
    shouldBeEqualToString('element.rel', 'y');

    createElement(' x y  x ');
    element.relList.remove('x');
    shouldBeEqualToString('element.rel', 'y');

    debug('Ensure that we can handle empty rel correctly');
    element = document.createElement(type);
    shouldBeTrue("element.relList.toggle('x')");
    shouldBeEqualToString('element.rel', 'x');
    shouldBeFalse("element.relList.toggle('x')");
    shouldBeEqualToString('element.rel', '');

    element = document.createElement(type);
    shouldBeFalse('element.relList.contains("x")');
    shouldBeUndefined('element.relList[1]');
    element.relList.remove('x');
    shouldBeFalse('element.relList.contains("x")');
    element.relList.add('x');
    shouldBeTrue('element.relList.contains("x")');

    debug('Test toggle with force argument');
    createElement('');
    shouldBeTrue("element.relList.toggle('x', true)");
    shouldBeEqualToString('element.rel', 'x');
    shouldBeTrue("element.relList.toggle('x', true)");
    shouldBeEqualToString('element.rel', 'x');
    shouldBeFalse("element.relList.toggle('x', false)");
    shouldBeEqualToString('element.rel', '');
    shouldBeFalse("element.relList.toggle('x', false)");
    shouldBeEqualToString('element.rel', '');
    shouldThrow('element.relList.toggle("", true)');
    shouldThrow('element.relList.toggle("x y", false)');

    debug('Testing add in presence of trailing white spaces.');
    createElement('x ');
    element.relList.add('y');
    shouldBeEqualToString('element.rel', 'x y');

    createElement('x\t');
    element.relList.add('y');
    shouldBeEqualToString('element.rel', 'x y');

    createElement(' ');
    element.relList.add('y');
    shouldBeEqualToString('element.rel', 'y');

    debug('Test invalid tokens');

    createElement('x');
    shouldBeFalse('element.relList.contains("")');

    createElement('x y');
    shouldBeFalse('element.relList.contains("x y")');

    createElement('');
    shouldThrow('element.relList.add("")');

    createElement('');
    shouldThrow('element.relList.add("x y")');

    createElement('');
    shouldThrow('element.relList.remove("")');

    createElement('');
    shouldThrow('element.relList.remove("x y")');

    createElement('');
    shouldThrow('element.relList.toggle("")');

    debug('Indexing');
    createElement('x');
    shouldBeEqualToString('element.relList[0]', 'x');
    shouldBeEqualToString('element.relList.item(0)', 'x');

    createElement('x x');
    shouldBeUndefined('element.relList[1]');
    shouldBeNull('element.relList.item(1)');

    createElement('x y');
    shouldBeEqualToString('element.relList[1]', 'y');
    shouldBeEqualToString('element.relList.item(1)', 'y');

    createElement('');
    shouldBeUndefined('element.relList[0]');
    shouldBeNull('element.relList.item(0)');

    createElement('x y z');
    shouldBeUndefined('element.relList[4]');
    shouldBeNull('element.relList.item(4)');
    shouldBeUndefined('element.relList[-1]');
    shouldBeNull('element.relList.item(-1)');
    shouldThrow('element.relList.item()');

    debug('Test case since DOMTokenList is case sensitive');
    createElement('x');
    shouldBeTrue('element.relList.contains("x")');
    shouldBeFalse('element.relList.contains("X")');
    shouldBeEqualToString('element.relList[0]', 'x');
    shouldThrow('element.relList.contains()');

    createElement('X');
    shouldBeTrue('element.relList.contains("X")');
    shouldBeFalse('element.relList.contains("x")');
    shouldBeEqualToString('element.relList[0]', 'X');

    debug('Testing whitespace');
    createElement('x\u0020y');
    shouldEvaluateTo('element.relList.length', 2);

    createElement('x\u0009y');
    shouldEvaluateTo('element.relList.length', 2);

    createElement('x\u000Ay');
    shouldEvaluateTo('element.relList.length', 2);

    createElement('x\u000Cy');
    shouldEvaluateTo('element.relList.length', 2);

    createElement('x\u000Dy');
    shouldEvaluateTo('element.relList.length', 2);

    debug('DOMTokenList presence and type');
    shouldBeTrue('\'undefined\' != typeof DOMTokenList');

    shouldBeEqualToString('typeof DOMTokenList.prototype', 'object');

    createElement('x');
    shouldBeEqualToString('typeof element.relList', 'object');
    shouldEvaluateTo('element.relList.constructor', 'DOMTokenList');
    shouldBeTrue('element.relList === element.relList');

    debug('Variadic calls');

    createElement('');
    element.relList.add('a', 'b');
    shouldBeEqualToString('element.rel', 'a b');

    element.relList.add('a', 'b', 'c');
    shouldBeEqualToString('element.rel', 'a b c');

    element.relList.add(null, {toString: function() { return 'd' }}, undefined, 0, false);
    shouldBeEqualToString('element.rel', 'a b c null d undefined 0 false');

    createElement('');
    element.relList.add('a', 'b', 'a');
    shouldBeEqualToString('element.rel', 'a b');

    createElement('');
    shouldThrow('element.relList.add("a", "b", "")');
    shouldBeEqualToString('element.rel', '');
    shouldThrow('element.relList.add("a", "b", "c d")');
    shouldBeEqualToString('element.rel', '');
    shouldThrow('element.relList.add("a", {toString: function() { throw new Error("user error"); }}, "b")', '"Error: user error"');
    shouldBeEqualToString('element.rel', '');

    createElement('');
    shouldNotThrow('element.relList.add()');

    createElement('');
    observer = new WebKitMutationObserver(function() {});
    observer.observe(element, {attributes: true});
    element.relList.add('a', 'c');
    shouldBe('observer.takeRecords().length', '1');

    createElement('a b c d  ');
    element.relList.remove('a', 'c');
    shouldBeEqualToString('element.rel', 'b d');

    element.relList.remove('b', 'b');
    shouldBeEqualToString('element.rel', 'd');

    createElement('a b c null d undefined 0 false');
    element.relList.remove(null, {toString: function() { return 'd' }}, undefined, 0, false);
    shouldBeEqualToString('element.rel', 'a b c');

    createElement('a b');
    shouldThrow('element.relList.remove("a", "b", "")');

    shouldBeEqualToString('element.rel', 'a b');
    shouldThrow('element.relList.remove("a", {toString: function() { throw new Error("user error"); }}, "b")', '"Error: user error"');
    shouldBeEqualToString('element.rel', 'a b');

    shouldThrow('element.relList.remove("a", "b", "c d")');
    shouldBeEqualToString('element.rel', 'a b');
    shouldNotThrow('element.relList.remove()');

    createElement('a b c');
    observer = new WebKitMutationObserver(function() {});
    observer.observe(element, {attributes: true});
    element.relList.remove('a', 'c');
    shouldBe('observer.takeRecords().length', '1');
}

debug('Tests relList for anchor element');
type = 'a';
test();
debug('Tests relList for area element');
type = 'area';
test();
debug('Tests relList for link element');
type = 'link';
test();

</script>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>