bufferedAmount-getting.html

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This WPT test may be referenced by the following Test IDs:
- /websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-getting.html?default - WPT Dashboard Interop Dashboard
- /websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-getting.html?wpt_flags=h2 - WPT Dashboard Interop Dashboard
- /websockets/interfaces/WebSocket/bufferedAmount/bufferedAmount-getting.html?wss - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>WebSockets: bufferedAmount after send()ing</title>

<script src=/resources/testharness.js></script>

<script src=/resources/testharnessreport.js></script>

<script src=../../../constants.sub.js></script>

<meta name="variant" content="?default">

<meta name="variant" content="?wss">

<meta name="variant" content="?wpt_flags=h2">

<div id=log></div>

<script>

async_test(function(t){

  // bufferedAmount should increase sync in the send() method and decrease between

  // events in the event loop (so never while script is running).

  var ws = new WebSocket(SCHEME_DOMAIN_PORT+'/echo');

  ws.onopen = t.step_func(function(e) {

    ws.send('x');

    assert_equals(ws.bufferedAmount, 1, 'bufferedAmount after sent "x"');

    ws.send('\u00E5');

    assert_equals(ws.bufferedAmount, 1+2, 'bufferedAmount after sent "x", "\u00E5"');

    ws.send('\u5336');

    assert_equals(ws.bufferedAmount, 1+2+3, 'bufferedAmount after sent "x", "\u00E5", "\u5336"');

    ws.send('\uD801\uDC7E');

    assert_equals(ws.bufferedAmount, 1+2+3+4, 'bufferedAmount after sent "x", "\u00E5", "\u5336", "\uD801\uDC7E"');

})

  var i = 0;

  ws.onmessage = t.step_func(function(e) {

    i++;

    switch(i) {

      case 1:

        assert_equals(e.data, 'x');

        assert_true(ws.bufferedAmount < 2+3+4 + 1, 'bufferedAmount after received "x"');

        break;

      case 2:

        assert_equals(e.data, '\u00E5');

        assert_true(ws.bufferedAmount < 3+4 + 1, 'bufferedAmount after received "x", "\u00E5"');

        break;

      case 3:

        assert_equals(e.data, '\u5336');

        assert_true(ws.bufferedAmount < 4 + 1, 'bufferedAmount after received "x", "\u00E5", "\u5336"');

        break;

      case 4:

        assert_equals(e.data, '\uD801\uDC7E');

        assert_equals(ws.bufferedAmount, 0, 'bufferedAmount after received "x", "\u00E5", "\u5336", "\uD801\uDC7E"');

        t.done();

        break;

      default:

        assert_unreached(i);

})

  ws.onerror = ws.onclose = t.step_func(function() {assert_unreached()});

});

</script>