- performance-timeline: https://github.com/web-platform-tests/wpt/tree/94caab7038/performance-timeline

- resource-timing: https://github.com/web-platform-tests/wpt/tree/22d38586d0/resource-timing

- resources: https://github.com/web-platform-tests/wpt/tree/1e140d63ec/resources

- streams: https://github.com/web-platform-tests/wpt/tree/2bd26e124c/streams

- streams: https://github.com/web-platform-tests/wpt/tree/bc9dcbbf1a/streams

- url: https://github.com/web-platform-tests/wpt/tree/67880a4eb8/url

- user-timing: https://github.com/web-platform-tests/wpt/tree/5ae85bf826/user-timing

- wasm/jsapi: https://github.com/web-platform-tests/wpt/tree/cde25e7e3c/wasm/jsapi

// META: global=window,worker

// META: global=window,worker,shadowrealm-in-window

// META: script=/resources/WebIDLParser.js

// META: script=/resources/idlharness.js

// META: timeout=long

start(c) {

controller = c;

},

async pull() {

pull() {

byobRequestDefined.push(controller.byobRequest !== null);

const initialByobRequest = controller.byobRequest;

const transferredView = await transferArrayBufferView(controller.byobRequest.view);

const transferredView = transferArrayBufferView(controller.byobRequest.view);

transferredView[0] = 0x01;

controller.byobRequest.respondWithNewView(transferredView);

await pullCalledPromise;

// Transfer the original BYOB request's buffer, and respond with a new view on that buffer

const transferredView = await transferArrayBufferView(controller.byobRequest.view);

const transferredView = transferArrayBufferView(controller.byobRequest.view);

const newView = transferredView.subarray(0, 1);

newView[0] = 42;

await pullCalledPromise;

// Transfer the original BYOB request's buffer, and respond with an empty view on that buffer

const transferredView = await transferArrayBufferView(controller.byobRequest.view);

const transferredView = transferArrayBufferView(controller.byobRequest.view);

const newView = transferredView.subarray(0, 0);

controller.close();

// META: global=window,worker,shadowrealm

// META: script=../resources/test-utils.js

'use strict';

// Tests which patch the global environment are kept separate to avoid

// interfering with other tests.

promise_test(async (t) => {

let controller;

const rs = new ReadableStream({

type: 'bytes',

start(c) {

controller = c;

}

});

const reader = rs.getReader({mode: 'byob'});

const length = 0x4000;

const buffer = new ArrayBuffer(length);

const bigArray = new BigUint64Array(buffer, length - 8, 1);

const read1 = reader.read(new Uint8Array(new ArrayBuffer(0x100)));

const read2 = reader.read(bigArray);

let flag = false;

Object.defineProperty(Object.prototype, 'then', {

get: t.step_func(() => {

if (!flag) {

flag = true;

assert_equals(controller.byobRequest, null, 'byobRequest should be null after filling both views');

}

}),

configurable: true

});

t.add_cleanup(() => {

delete Object.prototype.then;

});

controller.enqueue(new Uint8Array(0x110).fill(0x42));

assert_true(flag, 'patched then() should be called');

// The first read() is filled entirely with 0x100 bytes

const result1 = await read1;

assert_false(result1.done, 'result1.done');

assert_typed_array_equals(result1.value, new Uint8Array(0x100).fill(0x42), 'result1.value');

// The second read() is filled with the remaining 0x10 bytes

const result2 = await read2;

assert_false(result2.done, 'result2.done');

assert_equals(result2.value.constructor, BigUint64Array, 'result2.value constructor');

assert_equals(result2.value.byteOffset, length - 8, 'result2.value byteOffset');

assert_equals(result2.value.length, 1, 'result2.value length');

assert_array_equals([...result2.value], [0x42424242_42424242n], 'result2.value contents');

}, 'Patched then() sees byobRequest after filling all pending pull-into descriptors');

assert_typed_array_equals(result4.value, new Uint8Array([0]).subarray(0, 0), 'second chunk from branch2 should be correct');

}, 'ReadableStream teeing with byte source: respond() and close() while both branches are pulling');

promise_test(async t => {

let pullCount = 0;

const arrayBuffer = new Uint8Array([0x01, 0x02, 0x03]).buffer;

const enqueuedChunk = new Uint8Array(arrayBuffer, 2);

assert_equals(enqueuedChunk.length, 1);

assert_equals(enqueuedChunk.byteOffset, 2);

const rs = new ReadableStream({

type: 'bytes',

pull(c) {

++pullCount;

if (pullCount === 1) {

c.enqueue(enqueuedChunk);

}

}

});

const [branch1, branch2] = rs.tee();

const reader1 = branch1.getReader();

const reader2 = branch2.getReader();

const [result1, result2] = await Promise.all([reader1.read(), reader2.read()]);

assert_equals(result1.done, false, 'reader1 done');

assert_equals(result2.done, false, 'reader2 done');

const view1 = result1.value;

const view2 = result2.value;

// The first stream has the transferred buffer, but the second stream has the

// cloned buffer.

const underlying = new Uint8Array([0x01, 0x02, 0x03]).buffer;

assert_typed_array_equals(view1, new Uint8Array(underlying, 2), 'reader1 value');

assert_typed_array_equals(view2, new Uint8Array([0x03]), 'reader2 value');

}, 'ReadableStream teeing with byte source: reading an array with a byte offset should clone correctly');

<html class="test-wait">

<meta charset="utf-8">

<script type="module">

let a = window.open()

try {

let dir = await a.navigator.storage.getDirectory()

let hdl = await dir.getFileHandle("7399d8cf-9ff9-494d-89eb-d3045f229c27", {"create": true})

let map = new Map([[]])

let b = ReadableStream.from(map)

let c = await hdl.createWritable({ })

await b.pipeTo(c, { }).catch(() => {

// Error expected as we are not piping the right form of chunk to FileHandle

})

} finally {

document.documentElement.classList.remove("test-wait")

a.close()

}

</script>

// META: global=window,worker,shadowrealm

// META: global=window,worker

// META: script=../resources/test-utils.js

// META: script=../resources/rs-utils.js

'use strict';

'use strict';

(function () {

// Fake setInterval-like functionality in environments that don't have it

class IntervalHandle {

constructor(callback, delayMs) {

this.callback = callback;

this.delayMs = delayMs;

this.cancelled = false;

Promise.resolve().then(() => this.check());

}

async check() {

while (true) {

await new Promise(resolve => step_timeout(resolve, this.delayMs));

if (this.cancelled) {

return;

}

this.callback();

}

}

cancel() {

this.cancelled = true;

}

}

let localSetInterval, localClearInterval;

if (typeof globalThis.setInterval !== "undefined" &&

typeof globalThis.clearInterval !== "undefined") {

localSetInterval = globalThis.setInterval;

localClearInterval = globalThis.clearInterval;

} else {

localSetInterval = function setInterval(callback, delayMs) {

return new IntervalHandle(callback, delayMs);

}

localClearInterval = function clearInterval(handle) {

handle.cancel();

}

}

class RandomPushSource {

constructor(toPush) {

}

if (!this.started) {

this._intervalHandle = setInterval(writeChunk, 2);

this._intervalHandle = localSetInterval(writeChunk, 2);

this.started = true;

}

if (this.paused) {

this._intervalHandle = setInterval(writeChunk, 2);

this._intervalHandle = localSetInterval(writeChunk, 2);

this.paused = false;

}

if (source.toPush > 0 && source.pushed > source.toPush) {

if (source._intervalHandle) {

clearInterval(source._intervalHandle);

localClearInterval(source._intervalHandle);

source._intervalHandle = undefined;

}

source.closed = true;

if (this.started) {

this.paused = true;

clearInterval(this._intervalHandle);

localClearInterval(this._intervalHandle);

this._intervalHandle = undefined;

} else {

throw new Error('Can\'t pause reading an unstarted source.');

}

function transferArrayBufferView(view) {

const noopByteStream = new ReadableStream({

type: 'bytes',

pull(c) {

c.byobRequest.respond(c.byobRequest.view.byteLength);

c.close();

}

});

const reader = noopByteStream.getReader({ mode: 'byob' });

return reader.read(view).then((result) => result.value);

return structuredClone(view, { transfer: [view.buffer] });

}

self.RandomPushSource = RandomPushSource;

await transferMessagePortWithOrder3(new constructor());

}

async function advancedTransferMesagePortWith(constructor) {

async function advancedTransferMessagePortWith(constructor) {

await transferMessagePortWithOrder4(new constructor());

await transferMessagePortWithOrder5(new constructor());

await transferMessagePortWithOrder6(new constructor());

);

}

async function mixedTransferMesagePortWith() {

async function mixedTransferMessagePortWith() {

await mixedTransferMessagePortWithOrder1();

await mixedTransferMessagePortWithOrder2();

await mixedTransferMessagePortWithOrder3();

}, "Transferring a MessagePort with a TransformStream should set `.ports`");

promise_test(async t => {

await transferMessagePortWith(ReadableStream);

await advancedTransferMessagePortWith(ReadableStream);

}, "Transferring a MessagePort with a ReadableStream should set `.ports`, advanced");

promise_test(async t => {

await transferMessagePortWith(WritableStream);

await advancedTransferMessagePortWith(WritableStream);

}, "Transferring a MessagePort with a WritableStream should set `.ports`, advanced");

promise_test(async t => {

await transferMessagePortWith(TransformStream);

await advancedTransferMessagePortWith(TransformStream);

}, "Transferring a MessagePort with a TransformStream should set `.ports`, advanced");

promise_test(async t => {

await mixedTransferMesagePortWith();

await mixedTransferMessagePortWith();

}, "Transferring a MessagePort with multiple streams should set `.ports`");

test(() => {