106 lines
3.9 KiB
JavaScript
106 lines
3.9 KiB
JavaScript
// META: global=window,worker
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// META: script=/common/get-host-info.sub.js
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// META: script=resources/webtransport-test-helpers.sub.js
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function validate_rtt_stats(stats) {
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// The assumption below is that the RTT to localhost is under 5 seconds,
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// which is fairly generous.
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assert_greater_than(stats.minRtt, 0, "minRtt");
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assert_less_than(stats.minRtt, 5 * 1000, "minRtt");
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assert_greater_than(stats.smoothedRtt, 0, "smoothedRtt");
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assert_less_than(stats.smoothedRtt, 5 * 1000, "smoothedRtt");
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}
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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const stats = await wt.getStats();
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validate_rtt_stats(stats);
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assert_equals(stats.datagrams.expiredOutgoing, 0);
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assert_equals(stats.datagrams.droppedIncoming, 0);
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assert_equals(stats.datagrams.lostOutgoing, 0);
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}, "WebTransport client should be able to provide stats after connection has been established");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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wt.close();
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const stats = await wt.getStats();
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validate_rtt_stats(stats);
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}, "WebTransport client should be able to provide stats after connection has been closed");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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const statsPromise = wt.getStats();
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wt.close();
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const stats = await statsPromise;
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validate_rtt_stats(stats);
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}, "WebTransport client should be able to provide stats requested right before connection has been closed");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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const stats = await wt.getStats();
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validate_rtt_stats(stats);
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}, "WebTransport client should be able to provide valid stats when requested before connection established");
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promise_test(async t => {
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const wt = new WebTransport("https://webtransport.invalid/");
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wt.ready.catch(e => {});
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wt.closed.catch(e => {});
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const error = await wt.getStats().catch(e => e);
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assert_equals(error.code, DOMException.INVALID_STATE_ERR);
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const error2 = await wt.getStats().catch(e => e);
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assert_equals(error2.code, DOMException.INVALID_STATE_ERR);
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}, "WebTransport client should throw an error when stats are requested for a failed connection");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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const stats1 = wt.getStats();
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const stats2 = wt.getStats();
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assert_true(stats1 != stats2, "different promise returned for different getStats() calls");
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validate_rtt_stats(await stats1);
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validate_rtt_stats(await stats2);
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}, "WebTransport client should be able to handle multiple concurrent stats requests");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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const stats1 = await wt.getStats();
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validate_rtt_stats(stats1);
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const stats2 = await wt.getStats();
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validate_rtt_stats(stats2);
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}, "WebTransport client should be able to handle multiple sequential stats requests");
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promise_test(async t => {
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const wt = new WebTransport(webtransport_url('echo.py'));
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await wt.ready;
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const numDatagrams = 64;
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wt.datagrams.incomingHighWaterMark = 4;
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const writer = wt.datagrams.writable.getWriter();
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const encoder = new TextEncoder();
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const promises = [];
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while (promises.length < numDatagrams) {
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const token = promises.length.toString();
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promises.push(writer.write(encoder.encode(token)));
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}
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await Promise.all(promises);
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const maxAttempts = 40;
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let stats;
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for (let i = 0; i < maxAttempts; i++) {
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wait(50);
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stats = await wt.getStats();
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if (stats.datagrams.droppedIncoming > 0) {
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break;
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}
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}
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assert_greater_than(stats.datagrams.droppedIncoming, 0);
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assert_less_than_equal(stats.datagrams.droppedIncoming,
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numDatagrams - wt.datagrams.incomingHighWaterMark);
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}, "WebTransport client should be able to provide droppedIncoming values for datagrams");
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