chromium/third_party/blink/web_tests/http/tests/websocket/permessage-deflate-parameter.html

<!DOCTYPE HTML>
<html>
<head>
<script src="/js-test-resources/js-test.js"></script>
</head>
<body>
<div id="description"></div>
<div id="console"></div>
<script>
description("Test WebSocket permessage-deflate extension.");

window.jsTestIsAsync = true;

var closeEvent;
var ws;
var messageIndex;

var queries = [
    "client_max_window_bits=8",
    "client_no_context_takeover",
    "client_max_window_bits=8&client_no_context_takeover"
];

// The first message consists of a lot of 'b' and a few 'a' at the head and
// the tail, while the second one consists of 'a'.
var firstMessage = '';
var secondMessage = '';
for (var i = 0; i < 16; ++i) {
    firstMessage += 'a';
    secondMessage += 'a';
}
for (var i = 0; i < 1024; ++i) {
    firstMessage += 'b';
    secondMessage += 'a';
}
for (var i = 0; i < 16; ++i) {
    firstMessage += 'a';
    secondMessage += 'a';
}

function doTest(queryIndex)
{
    var query = queries[queryIndex];
    debug("Testing query: \"" + query + "\"");

    var url = "ws://localhost:8880/permessage-deflate?" + query;
    ws = new WebSocket(url);
    messageIndex = 0;

    ws.onopen = function(event)
    {
        shouldBeTrue("ws.extensions.search('permessage-deflate') != -1");
        parameters = query.split('&');
        for (var i = 0; i < parameters.length; ++i)
            shouldBeTrue("ws.extensions.search('" + parameters[i] + "') != -1");
        ws.send(firstMessage);
    };

    ws.onmessage = function(event)
    {
        if (messageIndex === 0) {
            shouldBe("event.data", "firstMessage");
            messageIndex += 1
            ws.send(secondMessage);
        } else {
            shouldBe("event.data", "secondMessage");
            ws.close();
        }
    };

    ws.onclose = function(event)
    {
        debug("onclose() was called.");
        closeEvent = event;
        shouldBeTrue("closeEvent.wasClean");
        if (queryIndex === queries.length - 1)
            finishJSTest();
        else
            doTest(queryIndex + 1);
    };
}

doTest(0);

</script>
</body>
</html>