<!DOCTYPE html>
<html>
<head>
<script src="/js-test-resources/js-test.js"></script>
<body>
<script>
    description("Test XmlHttpRequest onreadystatechange being called for each chunk of data (bug 7392).");
    jsTestIsAsync = true;

    let count = 0;
    
    let req = new XMLHttpRequest();
    req.onreadystatechange = () => {
        if (req.readyState == XMLHttpRequest.LOADING)
            ++count;
        else if (req.readyState == XMLHttpRequest.DONE) { 
            if (count > 1)
                testPassed("onreadystatechange was called for each chunk of data");
            else
                testFailed("onreadystatechange should have been called more than once but was called " + count + " times");
            finishJSTest();
        }
    };
    req.open('GET', 'interactive-state.cgi', true);
    req.send(null);
</script>
</body>
</html>