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test: run webmessaging/broadcastchannel WPT
Refs: #38803 PR-URL: #41962 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Benjamin Gruenbaum <[email protected]> Reviewed-By: Mestery <[email protected]>
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‎test/fixtures/wpt/webmessaging/broadcastchannel/basics.any.js

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async_test(t => {
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let c1 = new BroadcastChannel('eventType');
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let c2 = new BroadcastChannel('eventType');
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c2.onmessage = t.step_func(e => {
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assert_true(e instanceof MessageEvent);
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assert_equals(e.target, c2);
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assert_equals(e.type, 'message');
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assert_equals(e.origin, location.origin, 'origin');
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assert_equals(e.data, 'hello world');
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assert_equals(e.source, null, 'source');
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t.done();
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});
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c1.postMessage('hello world');
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}, 'postMessage results in correct event');
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async_test(t => {
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let c1 = new BroadcastChannel('order');
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let c2 = new BroadcastChannel('order');
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let c3 = new BroadcastChannel('order');
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let events = [];
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let doneCount = 0;
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let handler = t.step_func(e => {
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events.push(e);
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if (e.data == 'done') {
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doneCount++;
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if (doneCount == 2) {
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assert_equals(events.length, 6);
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assert_equals(events[0].target, c2, 'target for event 0');
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assert_equals(events[0].data, 'from c1');
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assert_equals(events[1].target, c3, 'target for event 1');
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assert_equals(events[1].data, 'from c1');
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assert_equals(events[2].target, c1, 'target for event 2');
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assert_equals(events[2].data, 'from c3');
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assert_equals(events[3].target, c2, 'target for event 3');
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assert_equals(events[3].data, 'from c3');
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assert_equals(events[4].target, c1, 'target for event 4');
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assert_equals(events[4].data, 'done');
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assert_equals(events[5].target, c3, 'target for event 5');
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assert_equals(events[5].data, 'done');
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t.done();
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}
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}
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});
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c1.onmessage = handler;
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c2.onmessage = handler;
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c3.onmessage = handler;
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c1.postMessage('from c1');
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c3.postMessage('from c3');
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c2.postMessage('done');
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}, 'messages are delivered in port creation order');
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async_test(t => {
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let c1 = new BroadcastChannel('closed');
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let c2 = new BroadcastChannel('closed');
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let c3 = new BroadcastChannel('closed');
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c2.onmessage = t.unreached_func();
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c2.close();
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c3.onmessage = t.step_func(() => t.done());
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c1.postMessage('test');
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}, 'messages aren\'t delivered to a closed port');
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async_test(t => {
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let c1 = new BroadcastChannel('closed');
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let c2 = new BroadcastChannel('closed');
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let c3 = new BroadcastChannel('closed');
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c2.onmessage = t.unreached_func();
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c3.onmessage = t.step_func(() => t.done());
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c1.postMessage('test');
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c2.close();
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}, 'messages aren\'t delivered to a port closed after calling postMessage.');
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async_test(t => {
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let c1 = new BroadcastChannel('create-in-onmessage');
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let c2 = new BroadcastChannel('create-in-onmessage');
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c2.onmessage = t.step_func(e => {
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assert_equals(e.data, 'first');
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c2.close();
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let c3 = new BroadcastChannel('create-in-onmessage');
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c3.onmessage = t.step_func(event => {
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assert_equals(event.data, 'done');
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t.done();
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});
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c1.postMessage('done');
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});
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c1.postMessage('first');
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c2.postMessage('second');
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}, 'closing and creating channels during message delivery works correctly');
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async_test(t => {
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let c1 = new BroadcastChannel('close-in-onmessage');
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let c2 = new BroadcastChannel('close-in-onmessage');
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let c3 = new BroadcastChannel('close-in-onmessage');
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let events = [];
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c1.onmessage = e => events.push('c1: ' + e.data);
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c2.onmessage = e => events.push('c2: ' + e.data);
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c3.onmessage = e => events.push('c3: ' + e.data);
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// c2 closes itself when it receives the first message
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c2.addEventListener('message', e => {
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c2.close();
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});
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c3.addEventListener('message', t.step_func(e => {
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if (e.data == 'done') {
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assert_array_equals(events, [
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'c2: first',
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'c3: first',
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'c3: done']);
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t.done();
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}
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}));
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c1.postMessage('first');
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c1.postMessage('done');
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}, 'Closing a channel in onmessage prevents already queued tasks from firing onmessage events');

‎test/fixtures/wpt/webmessaging/broadcastchannel/blobs.html

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<!DOCTYPE html>
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<meta charset=utf-8>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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async_test(t => {
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const c1 = new BroadcastChannel('blob');
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const c2 = new BroadcastChannel('blob');
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const c3 = new BroadcastChannel('blob');
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let readCount = 0;
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c2.onmessage = t.step_func(e => {
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// check blob
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assert_true('blob' in e.data);
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assert_true(e.data.blob instanceof Blob);
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assert_equals(e.data.blob.size, 6);
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const reader = new FileReader();
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reader.onerror = t.unreached_func();
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reader.onload = t.step_func(() => {
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assert_equals(reader.result, 'foobar');
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if (++readCount == 2)
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t.done();
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});
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reader.readAsText(e.data.blob);
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});
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c3.onmessage = c2.onmessage;
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(() => {
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c1.postMessage({blob: new Blob(['foo', 'bar'])});
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})();
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// TODO(https://github.com/web-platform-tests/wpt/issues/7899): Change to
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// some sort of cross-browser GC trigger.
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if (self.gc) self.gc();
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}, 'Blobs work on BroadcastChannel');
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async_test(t => {
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const c1 = new BroadcastChannel('blobworker');
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const c2 = new BroadcastChannel('blobworker');
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const events = [];
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const verifyEvents = function() {
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assert_equals(events.length, 5);
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assert_equals(events[0], 'from worker');
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assert_equals(events[1], 'from worker');
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assert_true(events[2].blob instanceof Blob);
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assert_equals(events[2].blob.size, 11);
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assert_true(events[3].blob instanceof Blob);
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assert_equals(events[3].blob.size, 11);
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assert_equals(events[4], 'done');
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const reader = new FileReader();
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reader.onerror = t.unreached_func();
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reader.onload = t.step_func(() => {
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assert_equals(reader.result, 'hello-world');
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t.done();
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});
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reader.readAsText(events[3].blob);
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};
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let receivedDone = false;
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let receivedWorkerDone = false;
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c1.onmessage = e => events.push(e.data);
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c2.onmessage = e => events.push(e.data);
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c2.addEventListener('message', t.step_func(e => {
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if (e.data.blob)
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c1.postMessage('done');
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if (e.data === 'done')
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receivedDone = true;
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if (receivedDone && receivedWorkerDone)
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verifyEvents();
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}));
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const worker = new Worker('resources/worker.js');
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worker.onmessage = t.step_func(e => {
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receivedWorkerDone = true;
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if (receivedDone && receivedWorkerDone)
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verifyEvents();
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});
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worker.postMessage({channel: 'blobworker'});
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worker.postMessage({blob: ['hello-world']});
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}, 'Blobs work with workers on BroadcastChannel');
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</script>

‎test/fixtures/wpt/webmessaging/broadcastchannel/cross-origin.html

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<!DOCTYPE html>
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<meta charset=utf-8>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/get-host-info.sub.js"></script>
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<!-- Pull in the with_iframe helper function from the service worker tests -->
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<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
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<body>
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<script>
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const events = [];
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function testCompletion(t) {
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return new Promise((resolve) => {
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window.addEventListener("message", t.step_func(e => {
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if (e.data == 'done') {
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assert_equals(events.length, 0);
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resolve();
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}
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}));
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});
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}
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promise_test(async t => {
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const bc0 = new BroadcastChannel('no-cross-origin-messages');
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bc0.onmessage = e => {window.events.push(e);};
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const testResults = testCompletion(t);
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const url = get_host_info().HTTPS_NOTSAMESITE_ORIGIN +
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'/webmessaging/broadcastchannel/resources/cross-origin.html';
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await with_iframe(url);
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return testResults;
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}, "Messages aren't delivered across origins");
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</script>
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</body>

‎test/fixtures/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html

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<!DOCTYPE html>
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<meta charset=utf-8>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/get-host-info.sub.js"></script>
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<script src="/common/utils.js"></script>
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<script src="/common/dispatcher/dispatcher.js"></script>
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<!-- Pull in executor_path needed by newPopup / newIframe -->
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<script src="/html/cross-origin-embedder-policy/credentialless/resources/common.js"></script>
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<!-- Pull in newPopup / newIframe -->
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<script src="/html/cross-origin-embedder-policy/anonymous-iframe/resources/common.js"></script>
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<body>
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<script>
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const emit_script = (channel_name, message, done_queue_name) => `
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const bc = new BroadcastChannel("${channel_name}");
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bc.postMessage("${message}");
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send("${done_queue_name}", "done");
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`;
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promise_test(async t => {
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const origin = get_host_info().HTTPS_ORIGIN;
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const not_same_site_origin = get_host_info().HTTPS_NOTSAMESITE_ORIGIN;
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const response_queue_uuid = token();
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const popup_init_script = `
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const importScript = ${importScript};
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await importScript("/html/cross-origin-embedder-policy/credentialless" +
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"/resources/common.js");
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await importScript("/html/cross-origin-embedder-policy/anonymous-iframe" +
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"/resources/common.js");
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await importScript("/common/utils.js");
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send("${response_queue_uuid}", newIframe("${origin}"));
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`;
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// Create a same-origin iframe in a cross-site popup.
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const not_same_site_popup_uuid = newPopup(t, not_same_site_origin);
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send(not_same_site_popup_uuid, popup_init_script);
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const iframe_1_uuid = await receive(response_queue_uuid);
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// Create a same-origin iframe in a same-site popup.
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const same_origin_popup_uuid = newPopup(t, origin);
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send(same_origin_popup_uuid, popup_init_script);
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const iframe_2_uuid = await receive(response_queue_uuid);
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const channel_name = token();
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const bc = new BroadcastChannel(channel_name);
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bc.onmessage = t.step_func(e => {
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assert_equals(e.data, "msg from iframe2");
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t.done();
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});
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// Instruct the not-same-top-level-site iframe to send a message on the BC
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// channel we are listening on. This message should not be received since
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// the iframe should be in a different partition.
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send(iframe_1_uuid,
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emit_script(channel_name, "msg from iframe1", response_queue_uuid));
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assert_equals(await receive(response_queue_uuid), "done");
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// Now instruct the same-top-level-site iframe to send a BC message. By
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// the time we send the script to execute, have it send the BC message,
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// and then receive the BC message in our BC instance, it should be
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// reasonable to assume that the message from the first iframe would have
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// been delivered if it was going to be.
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send(iframe_2_uuid,
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emit_script(channel_name, "msg from iframe2", response_queue_uuid));
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assert_equals(await receive(response_queue_uuid), "done");
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}, "BroadcastChannel messages aren't received from a cross-partition iframe");
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</script>
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</body>

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