<!DOCTYPE html>
<html>
<head>
    <link rel="help" href="https://xhr.spec.whatwg.org/#handler-xhr-onloadstart" data-tested-assertations="../.." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#handler-xhr-onloadend" data-tested-assertations="../.." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#event-xhr-loadstart" data-tested-assertations="../.." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#event-xhr-loadend" data-tested-assertations="../.." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#the-send()-method" data-tested-assertations="following-sibling::ol/li[9]/ol/li[2]" />
    <link rel="help" href="https://xhr.spec.whatwg.org/#infrastructure-for-the-send()-method" data-tested-assertations="following::dt[10] following::a[contains(@href,'#switch-done')]/.." />
    <link rel="help" href="https://xhr.spec.whatwg.org/#switch-done" data-tested-assertations="following::ol[1]/li[3] following::ol[1]/li[4] following::ol[1]/li[6] following::ol[1]/li[7]" />
    <link rel="help" href="https://xhr.spec.whatwg.org/#the-response-attribute" data-tested-assertations="following-sibling::ol/li[1]" />
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <title>XMLHttpRequest: The send() method: event order when there is no response entity body</title>
</head>

<body>
    <div id="log"></div>

    <script type="text/javascript">
        var test = async_test();

        test.step(function()
        {
            var xhr = new XMLHttpRequest();
            var expect = ["loadstart", 4, "load", "loadend"];
            var actual = [];

            xhr.onreadystatechange = test.step_func(function()
            {
                test.step(function()
                {
                    if (xhr.readyState == 3)
                    {
                        assert_equals(xhr.response, "");
                    }
                    else if (xhr.readyState == 4)
                    {
                        actual.push(xhr.readyState);
                    }
                });
            });

            xhr.onloadstart        = test.step_func(function(e){ actual.push(e.type); });
            xhr.onload             = test.step_func(function(e){ actual.push(e.type); });
            xhr.onloadend          = test.step_func(function(e){
                actual.push(e.type);
                assert_array_equals(actual, expect);
                test.done();
            });

            xhr.upload.onloadstart = test.step_func(function(e){ assert_unreached('upload.'+e.type); });
            xhr.upload.onload      = test.step_func(function(e){ assert_unreached('upload.'+e.type); });
            xhr.upload.onloadend   = test.step_func(function(e){ assert_unreached('upload.'+e.type); });

            xhr.open("POST", "./resources/content.py", true);
            xhr.send();
        });
    </script>
</body>
</html>