Test case for jQuery Ticket 8266

.queue race condition

by jitter

HTML

<div id="results"></div>


<!-- to see this bug, change the jQuery version from 1.4.4 to 1.5 

it will work in 1.5 if you change the queName from 'fx2' to 'fx',
but it still acts strangely

-->

JavaScript

var queName = 'fx2',
    iterations = 0,
    obj = $(document),
    results = $('#results'),
    delay = 50,
    next = function() {
        results.append(' ' + obj.queue(queName).length);
        obj.dequeue(queName);
    },
    loop = [
        function() { setTimeout(next, delay); },
        function() { setTimeout(next, delay); },
        function() { setTimeout(next, delay); },
        function() { setTimeout(next, delay); },
        function() { setTimeout(next, delay); },
        function() { setTimeout(next, delay); },
        function() { setTimeout(startLoop, delay); }
    ],
    startLoop = function() {
        if (iterations++ < 5) {
            results.append('<br>Iteration = ' + iterations + ', que length: ');
            obj.queue(queName, loop);
            next();
        }
    };
startLoop();