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How to use ReadableStreamFulfillReadRequest method in wpt

Best JavaScript code snippet using wpt

ReadableStreamInternals.js

Source:ReadableStreamInternals.js

1/*2 * Copyright (C) 2015 Canon Inc. All rights reserved.3 * Copyright (C) 2015 Igalia.4 *5 * Redistribution and use in source and binary forms, with or without6 * modification, are permitted provided that the following conditions7 * are met:8 * 1. Redistributions of source code must retain the above copyright9 *    notice, this list of conditions and the following disclaimer.10 * 2. Redistributions in binary form must reproduce the above copyright11 *    notice, this list of conditions and the following disclaimer in the12 *    documentation and/or other materials provided with the distribution.13 *14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.25 */26// @conditional=ENABLE(READABLE_STREAM_API)27// @internal28function privateInitializeReadableStreamDefaultReader(stream)29{30    "use strict";31    if (!@isReadableStream(stream))32       @throwTypeError("ReadableStreamDefaultReader needs a ReadableStream");33    if (@isReadableStreamLocked(stream))34       @throwTypeError("ReadableStream is locked");35    @readableStreamReaderGenericInitialize(this, stream);36    this.@readRequests = [];37    return this;38}39function readableStreamReaderGenericInitialize(reader, stream)40{41    "use strict";42    reader.@ownerReadableStream = stream;43    stream.@reader = reader;44    if (stream.@state === @streamReadable)45        reader.@closedPromiseCapability = @newPromiseCapability(@Promise);46    else if (stream.@state === @streamClosed)47        reader.@closedPromiseCapability = { @promise: @Promise.@resolve() };48    else {49        @assert(stream.@state === @streamErrored);50        reader.@closedPromiseCapability = { @promise: @Promise.@reject(stream.@storedError) };51    }52}53function privateInitializeReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark)54{55    "use strict";56    if (!@isReadableStream(stream))57        @throwTypeError("ReadableStreamDefaultController needs a ReadableStream");58    // readableStreamController is initialized with null value.59    if (stream.@readableStreamController !== null)60        @throwTypeError("ReadableStream already has a controller");61    this.@controlledReadableStream = stream;62    this.@underlyingSource = underlyingSource;63    this.@queue = @newQueue();64    this.@started = false;65    this.@closeRequested = false;66    this.@pullAgain = false;67    this.@pulling = false;68    this.@strategy = @validateAndNormalizeQueuingStrategy(size, highWaterMark);69    const controller = this;70    @promiseInvokeOrNoopNoCatch(underlyingSource, "start", [this]).@then(() => {71        controller.@started = true;72        @assert(!controller.@pulling);73        @assert(!controller.@pullAgain);74        @readableStreamDefaultControllerCallPullIfNeeded(controller);75    }, (error) => {76        if (stream.@state === @streamReadable)77            @readableStreamDefaultControllerError(controller, error);78    });79    this.@cancel = @readableStreamDefaultControllerCancel;80    this.@pull = @readableStreamDefaultControllerPull;81    return this;82}83function readableStreamDefaultControllerError(controller, error)84{85    "use strict";86    const stream = controller.@controlledReadableStream;87    @assert(stream.@state === @streamReadable);88    controller.@queue = @newQueue();89    @readableStreamError(stream, error);90}91function readableStreamTee(stream, shouldClone)92{93    "use strict";94    @assert(@isReadableStream(stream));95    @assert(typeof(shouldClone) === "boolean");96    const reader = new @ReadableStreamDefaultReader(stream);97    const teeState = {98        closedOrErrored: false,99        canceled1: false,100        canceled2: false,101        reason1: @undefined,102        reason2: @undefined,103    };104    teeState.cancelPromiseCapability = @newPromiseCapability(@InternalPromise);105    const pullFunction = @readableStreamTeePullFunction(teeState, reader, shouldClone);106    const branch1 = new @ReadableStream({107        "pull": pullFunction,108        "cancel": @readableStreamTeeBranch1CancelFunction(teeState, stream)109    });110    const branch2 = new @ReadableStream({111        "pull": pullFunction,112        "cancel": @readableStreamTeeBranch2CancelFunction(teeState, stream)113    });114    reader.@closedPromiseCapability.@promise.@then(@undefined, function(e) {115        if (teeState.closedOrErrored)116            return;117        @readableStreamDefaultControllerError(branch1.@readableStreamController, e);118        @readableStreamDefaultControllerError(branch2.@readableStreamController, e);119        teeState.closedOrErrored = true;120    });121    // Additional fields compared to the spec, as they are needed within pull/cancel functions.122    teeState.branch1 = branch1;123    teeState.branch2 = branch2;124    return [branch1, branch2];125}126function doStructuredClone(object)127{128    "use strict";129    // FIXME: We should implement http://w3c.github.io/html/infrastructure.html#ref-for-structured-clone-4130    // Implementation is currently limited to ArrayBuffer/ArrayBufferView to meet Fetch API needs.131    if (object instanceof @ArrayBuffer)132        return @structuredCloneArrayBuffer(object);133    if (@ArrayBuffer.@isView(object))134        return @structuredCloneArrayBufferView(object);135    @throwTypeError("structuredClone not implemented for: " + object);136}137function readableStreamTeePullFunction(teeState, reader, shouldClone)138{139    "use strict";140    return function() {141        @Promise.prototype.@then.@call(@readableStreamDefaultReaderRead(reader), function(result) {142            @assert(@isObject(result));143            @assert(typeof result.done === "boolean");144            if (result.done && !teeState.closedOrErrored) {145                if (!teeState.canceled1)146                    @readableStreamDefaultControllerClose(teeState.branch1.@readableStreamController);147                if (!teeState.canceled2)148                    @readableStreamDefaultControllerClose(teeState.branch2.@readableStreamController);149                teeState.closedOrErrored = true;150            }151            if (teeState.closedOrErrored)152                return;153            if (!teeState.canceled1)154                @readableStreamDefaultControllerEnqueue(teeState.branch1.@readableStreamController, result.value);155            if (!teeState.canceled2)156                @readableStreamDefaultControllerEnqueue(teeState.branch2.@readableStreamController, shouldClone ? @doStructuredClone(result.value) : result.value);157        });158    }159}160function readableStreamTeeBranch1CancelFunction(teeState, stream)161{162    "use strict";163    return function(r) {164        teeState.canceled1 = true;165        teeState.reason1 = r;166        if (teeState.canceled2) {167            @readableStreamCancel(stream, [teeState.reason1, teeState.reason2]).@then(168                teeState.cancelPromiseCapability.@resolve,169                teeState.cancelPromiseCapability.@reject);170        }171        return teeState.cancelPromiseCapability.@promise;172    }173}174function readableStreamTeeBranch2CancelFunction(teeState, stream)175{176    "use strict";177    return function(r) {178        teeState.canceled2 = true;179        teeState.reason2 = r;180        if (teeState.canceled1) {181            @readableStreamCancel(stream, [teeState.reason1, teeState.reason2]).@then(182                teeState.cancelPromiseCapability.@resolve,183                teeState.cancelPromiseCapability.@reject);184        }185        return teeState.cancelPromiseCapability.@promise;186    }187}188function isReadableStream(stream)189{190    "use strict";191    // Spec tells to return true only if stream has a readableStreamController internal slot.192    // However, since it is a private slot, it cannot be checked using hasOwnProperty().193    // Therefore, readableStreamController is initialized with null value.194    return @isObject(stream) && stream.@readableStreamController !== @undefined;195}196function isReadableStreamDefaultReader(reader)197{198    "use strict";199    // Spec tells to return true only if reader has a readRequests internal slot.200    // However, since it is a private slot, it cannot be checked using hasOwnProperty().201    // Since readRequests is initialized with an empty array, the following test is ok.202    return @isObject(reader) && !!reader.@readRequests;203}204function isReadableStreamDefaultController(controller)205{206    "use strict";207    // Spec tells to return true only if controller has an underlyingSource internal slot.208    // However, since it is a private slot, it cannot be checked using hasOwnProperty().209    // underlyingSource is obtained in ReadableStream constructor: if undefined, it is set210    // to an empty object. Therefore, following test is ok.211    return @isObject(controller) && !!controller.@underlyingSource;212}213function readableStreamError(stream, error)214{215    "use strict";216    @assert(@isReadableStream(stream));217    @assert(stream.@state === @streamReadable);218    stream.@state = @streamErrored;219    stream.@storedError = error;220    if (!stream.@reader)221        return;222    const reader = stream.@reader;223    if (@isReadableStreamDefaultReader(reader)) {224        const requests = reader.@readRequests;225        for (let index = 0, length = requests.length; index < length; ++index)226            requests[index].@reject.@call(@undefined, error);227        reader.@readRequests = [];228    } else229        // FIXME: Implement ReadableStreamBYOBReader.230        @throwTypeError("Only ReadableStreamDefaultReader is currently supported");231    reader.@closedPromiseCapability.@reject.@call(@undefined, error);232}233function readableStreamDefaultControllerCallPullIfNeeded(controller)234{235    "use strict";236    const stream = controller.@controlledReadableStream;237    if (stream.@state === @streamClosed || stream.@state === @streamErrored)238        return;239    if (controller.@closeRequested)240        return;241    if (!controller.@started)242        return;243    if ((!@isReadableStreamLocked(stream) || !stream.@reader.@readRequests.length) && @readableStreamDefaultControllerGetDesiredSize(controller) <= 0)244        return;245    if (controller.@pulling) {246        controller.@pullAgain = true;247        return;248    }249    @assert(!controller.@pullAgain);250    controller.@pulling = true;251    @promiseInvokeOrNoop(controller.@underlyingSource, "pull", [controller]).@then(function() {252        controller.@pulling = false;253        if (controller.@pullAgain) {254            controller.@pullAgain = false;255            @readableStreamDefaultControllerCallPullIfNeeded(controller);256        }257    }, function(error) {258        if (stream.@state === @streamReadable)259            @readableStreamDefaultControllerError(controller, error);260    });261}262function isReadableStreamLocked(stream)263{264   "use strict";265    @assert(@isReadableStream(stream));266    return !!stream.@reader;267}268function readableStreamDefaultControllerGetDesiredSize(controller)269{270   "use strict";271   return controller.@strategy.highWaterMark - controller.@queue.size;272}273function readableStreamReaderGenericCancel(reader, reason)274{275    "use strict";276    const stream = reader.@ownerReadableStream;277    @assert(!!stream);278    return @readableStreamCancel(stream, reason);279}280function readableStreamCancel(stream, reason)281{282    "use strict";283    stream.@disturbed = true;284    if (stream.@state === @streamClosed)285        return @Promise.@resolve();286    if (stream.@state === @streamErrored)287        return @Promise.@reject(stream.@storedError);288    @readableStreamClose(stream);289    return stream.@readableStreamController.@cancel(stream.@readableStreamController, reason).@then(function() {  });290}291function readableStreamDefaultControllerCancel(controller, reason)292{293    "use strict";294    controller.@queue = @newQueue();295    return @promiseInvokeOrNoop(controller.@underlyingSource, "cancel", [reason]);296}297function readableStreamDefaultControllerPull(controller)298{299    "use strict";300    const stream = controller.@controlledReadableStream;301    if (controller.@queue.content.length) {302        const chunk = @dequeueValue(controller.@queue);303        if (controller.@closeRequested && controller.@queue.content.length === 0)304            @readableStreamClose(stream);305        else306            @readableStreamDefaultControllerCallPullIfNeeded(controller);307        return @Promise.@resolve({value: chunk, done: false});308    }309    const pendingPromise = @readableStreamAddReadRequest(stream);310    @readableStreamDefaultControllerCallPullIfNeeded(controller);311    return pendingPromise;312}313function readableStreamDefaultControllerClose(controller)314{315    "use strict";316    const stream = controller.@controlledReadableStream;317    @assert(!controller.@closeRequested);318    @assert(stream.@state === @streamReadable);319    controller.@closeRequested = true;320    if (controller.@queue.content.length === 0)321        @readableStreamClose(stream);322}323function readableStreamClose(stream)324{325    "use strict";326    @assert(stream.@state === @streamReadable);327    stream.@state = @streamClosed;328    const reader = stream.@reader;329    if (!reader)330        return;331    if (@isReadableStreamDefaultReader(reader)) {332        const requests = reader.@readRequests;333        for (let index = 0, length = requests.length; index < length; ++index)334            requests[index].@resolve.@call(@undefined, {value:@undefined, done: true});335        reader.@readRequests = [];336    }337    reader.@closedPromiseCapability.@resolve.@call();338}339function readableStreamFulfillReadRequest(stream, chunk, done)340{341    "use strict";342    stream.@reader.@readRequests.@shift().@resolve.@call(@undefined, {value: chunk, done: done});343}344function readableStreamDefaultControllerEnqueue(controller, chunk)345{346    "use strict";347    const stream = controller.@controlledReadableStream;348    @assert(!controller.@closeRequested);349    @assert(stream.@state === @streamReadable);350    if (@isReadableStreamLocked(stream) && stream.@reader.@readRequests.length) {351        @readableStreamFulfillReadRequest(stream, chunk, false);352        @readableStreamDefaultControllerCallPullIfNeeded(controller);353        return;354    }355    try {356        let chunkSize = 1;357        if (controller.@strategy.size !== @undefined)358            chunkSize = controller.@strategy.size(chunk);359        @enqueueValueWithSize(controller.@queue, chunk, chunkSize);360    }361    catch(error) {362        if (stream.@state === @streamReadable)363            @readableStreamDefaultControllerError(controller, error);364        throw error;365    }366    @readableStreamDefaultControllerCallPullIfNeeded(controller);367}368function readableStreamDefaultReaderRead(reader)369{370    "use strict";371    const stream = reader.@ownerReadableStream;372    @assert(!!stream);373    stream.@disturbed = true;374    if (stream.@state === @streamClosed)375        return @Promise.@resolve({value: @undefined, done: true});376    if (stream.@state === @streamErrored)377        return @Promise.@reject(stream.@storedError);378    @assert(stream.@state === @streamReadable);379    return stream.@readableStreamController.@pull(stream.@readableStreamController);380}381function readableStreamAddReadRequest(stream)382{383    "use strict";384    @assert(@isReadableStreamDefaultReader(stream.@reader));385    @assert(stream.@state == @streamReadable);386    const readRequest = @newPromiseCapability(@Promise);387    stream.@reader.@readRequests.@push(readRequest);388    return readRequest.@promise;389}390function isReadableStreamDisturbed(stream)391{392    "use strict";393    @assert(@isReadableStream(stream));394    return stream.@disturbed;395}396function readableStreamReaderGenericRelease(reader)397{398    "use strict";399    @assert(!!reader.@ownerReadableStream);400    @assert(reader.@ownerReadableStream.@reader === reader);401    if (reader.@ownerReadableStream.@state === @streamReadable)402        reader.@closedPromiseCapability.@reject.@call(@undefined, new @TypeError("releasing lock of reader whose stream is still in readable state"));403    else404        reader.@closedPromiseCapability = { @promise: @Promise.@reject(new @TypeError("reader released lock")) };405    reader.@ownerReadableStream.@reader = @undefined;406    reader.@ownerReadableStream = null;...

default-controller.ts

Source:default-controller.ts

...202    return;203  }204  const stream = controller._controlledReadableStream;205  if (IsReadableStreamLocked(stream) && ReadableStreamGetNumReadRequests(stream) > 0) {206    ReadableStreamFulfillReadRequest(stream, chunk, false);207  } else {208    let chunkSize;209    try {210      chunkSize = controller._strategySizeAlgorithm(chunk);211    } catch (chunkSizeE) {212      ReadableStreamDefaultControllerError(controller, chunkSizeE);213      throw chunkSizeE;214    }215    try {216      EnqueueValueWithSize(controller, chunk, chunkSize);217    } catch (enqueueE) {218      ReadableStreamDefaultControllerError(controller, enqueueE);219      throw enqueueE;220    }...

readable_stream_controller.ts

Source:readable_stream_controller.ts

...194    if (195      IsReadableStreamLocked(stream) &&196      ReadableStreamGetNumReadRequests(stream) > 0197    ) {198      ReadableStreamFulfillReadRequest(stream, chunk, false);199    } else {200      let result: number;201      try {202        result = controller.strategySizeAlgorithm(chunk);203      } catch (e) {204        ReadableStreamDefaultControllerError(controller, e);205        return e;206      }207      const chunkSize = result;208      try {209        EnqueueValueWithSize(controller, chunk, chunkSize);210      } catch (e) {211        ReadableStreamDefaultControllerError(controller, e);212        return e;...

Using AI Code Generation

1const { ReadableStream, ReadableStreamBYOBRequest, ReadableStreamBYOBReader, ReadableStreamDefaultReader, ReadableStreamDefaultController, ReadableStreamDefaultControllerClose, ReadableStreamDefaultControllerEnqueue, ReadableStreamDefaultControllerError, ReadableStreamDefaultControllerGetDesiredSize, ReadableStreamDefaultControllerHasBackpressure, ReadableStreamTee } = require('stream/web');2const { ReadableStreamFulfillReadRequest, ReadableStreamGetNumReadRequests, ReadableStreamGetNumReadIntoRequests, ReadableStreamHasDefaultReader, ReadableStreamHasBYOBReader, ReadableStreamGetNumReadIntoRequests } = require('stream/web');3const rs = new ReadableStream({4  start(c) {5    c.enqueue('a');6    c.enqueue('b');7    c.enqueue('c');8  }9});10const reader = rs.getReader();11reader.read().then(result1 => {12  console.assert(result1.value === 'a');13  console.assert(result1.done === false);14  reader.read().then(result2 => {15    console.assert(result2.value === 'b');16    console.assert(result2.done === false);17    reader.read().then(result3 => {18      console.assert(result3.value === 'c');19      console.assert(result3.done === false);20      reader.read().then(result4 => {21        console.assert(result4.value === undefined);22        console.assert(result4.done === true);23      });24    });25  });26});27const byobReader = rs.getReader({ mode: "byob" });28const view = new Uint8Array(3);29byobReader.read(view).then(result1 => {30  console.assert(result1.value === view);31  console.assert(result1.done === false);32  console.assert(view[0] === 'a'.charCodeAt(0));33  console.assert(view[1] === 'b'.charCodeAt(0));34  console.assert(view[2] === 'c'.charCodeAt(0));35  byobReader.read(view).then(result2 => {

Using AI Code Generation

1var rs = new ReadableStream({2  pull: function(controller) {3    controller.enqueue("a");4    controller.close();5  }6});7var reader = rs.getReader();8var read = reader.read();9read.then(function(result) {10  assert_object_equals(result, {value: "a", done: false}, 'The value read should be "a"');11  var readPromise = reader.read();12  var desc = Object.getOwnPropertyDescriptor(readPromise, "then");13  assert_equals(desc.get, undefined, 'The "then" property of the promise should not have a getter');14  assert_equals(desc.set, undefined, 'The "then" property of the promise should not have a setter');15  assert_equals(desc.enumerable, true, 'The "then" property of the promise should be enumerable');16  assert_equals(desc.configurable, true, 'The "then" property of the promise should be configurable');17  ReadableStreamFulfillReadRequest(readPromise, "b");18  return readPromise;19}).then(function(result) {20  assert_object_equals(result, {value: "b", done: false}, 'The value read should be "b"');21  var readPromise = reader.read();22  var desc = Object.getOwnPropertyDescriptor(readPromise, "then");23  assert_equals(desc.get, undefined, 'The "then" property of the promise should not have a getter');24  assert_equals(desc.set, undefined, 'The "then" property of the promise should not have a setter');25  assert_equals(desc.enumerable, true, 'The "then" property of the promise should be enumerable');26  assert_equals(desc.configurable, true, 'The "then" property of the promise should be configurable');27  ReadableStreamFulfillReadRequest(readPromise, {toString() { return "c" }});28  return readPromise;29}).then(function(result) {30  assert_object_equals(result, {value: "c", done: false}, 'The value read should be "c"');31  var readPromise = reader.read();32  var desc = Object.getOwnPropertyDescriptor(readPromise, "then");33  assert_equals(desc.get, undefined, 'The "then" property of the promise should not have a getter');34  assert_equals(desc.set, undefined, 'The "then" property of the promise should not have a setter');35  assert_equals(desc.enumerable, true, 'The "then" property of the promise should be enumerable');36  assert_equals(desc.configurable, true

Using AI Code Generation

1var rs = new ReadableStream({2  start: function(controller) {3    controller.enqueue("a");4    controller.enqueue("b");5    controller.close();6  }7});8var reader = rs.getReader();9reader.read().then(function(result) {10  return reader.read();11}).then(function(result) {12  return reader.read();13}).then(function(result) {14});15var rs = new ReadableStream({16  start: function(controller) {17    var view = new Uint8Array(3);18    controller.enqueue(view);19    controller.close();20  }21});22var reader = rs.getReader({ mode: "byob" });23var buffer = new ArrayBuffer(3);24var view = new Uint8Array(buffer);25reader.read(view).then(function(result) {26  return reader.read(view);27}).then(function(result) {28});29var rs = new ReadableStream({30  start: function(controller) {31    controller.enqueue("a");32    controller.enqueue("b");33    controller.close();34  }35});36var reader = rs.getReader();37reader.read().then(function(result) {38  return reader.read();39}).then(function(result) {40  return reader.read();41}).then

Using AI Code Generation

1const rs = new ReadableStream({2    start(controller) {3        const view = new Uint8Array([1, 2, 3, 4, 5]);4        controller.enqueue(view);5        controller.close();6    }7});8const reader = rs.getReader();9const read = reader.read();10read.then(result => console.log(result));11const rs = new ReadableStream({12    start(controller) {13        const view = new Uint8Array([1, 2, 3, 4, 5]);14        controller.enqueue(view);15        controller.close();16    }17});18const reader = rs.getReader();19const view = new Uint8Array(10);20const readInto = reader.read(view);21readInto.then(result => console.log(result));22const rs = new ReadableStream({23    start(controller) {24        controller.close();25    }26});27const reader = rs.getReader();28const read = reader.read();29read.then(result => console.log(result));30const rs = new ReadableStream({31    start(controller) {32        controller.enqueue("a");33        controller.enqueue("b");34        controller.enqueue("c");35    }36});37const reader = rs.getReader();38const read1 = reader.read();39read1.then(result => console.log(result));40const read2 = reader.read();41read2.then(result => console.log(result));42const read3 = reader.read();43read3.then(result => console.log(result));44const rs = new ReadableStream({45    start(controller) {46        controller.error("error");47    }48});49const reader = rs.getReader();50const read = reader.read();51read.then(result => console.log(result));52const rs = new ReadableStream({53    start(controller) {54        controller.enqueue("a");55        controller.enqueue("b");56    }57});58const reader = rs.getReader();59const read1 = reader.read();60read1.then(result => console.log(result));

Using AI Code Generation

1var rs = new ReadableStream({2    start: function(controller) {3      controller.enqueue('a');4      controller.enqueue('b');5      controller.enqueue('c');6    }7  });8  var reader = rs.getReader();9  var read1 = reader.read();10  read1.then(function(result1) {11    console.log(result1);12    var read2 = reader.read();13    read2.then(function(result2) {14      console.log(result2);15      var read3 = reader.read();16      read3.then(function(result3) {17        console.log(result3);18        var read4 = reader.read();19        read4.then(function(result4) {20          console.log(result4);21        });22      });23    });24  });25function ReadableStreamFulfillReadRequest(stream, chunk, done) {26  var reader = stream._reader;27  if (reader._readRequests.length === 0) {28    return;29  }30  var readRequest = reader._readRequests.shift();31  if (done) {32    readRequest._closeSteps();33  } else {34    readRequest._chunkSteps(chunk);35  }36}37function ReadableStreamDefaultReaderRead(reader) {38  var stream = reader._ownerReadableStream;39  stream._disturbed = true;40  if (stream._state === 'closed') {41    return Promise.resolve(CreateIterResultObject(undefined, true));42  }43  if (stream._state === 'errored') {44    return Promise.reject(stream._storedError);45  }46  reader._readRequests.push(new ReadRequest());47  ReadableStreamDefaultControllerCallPullIfNeeded(stream._controller);48  return reader._readRequests[reader._readRequests.length - 1]._promise;49}50function ReadRequest() {

Using AI Code Generation

1function testReadableStreamFulfillReadRequest() {2  var rs = new ReadableStream();3  var reader = rs.getReader();4  var readRequest = new ReadableStreamDefaultReaderReadRequest(reader);5  var chunk = 1;6  ReadableStreamFulfillReadRequest(readRequest, chunk, false);7  assert_equals(readRequest.chunk, chunk);8  assert_false(readRequest.done);9}10testReadableStreamFulfillReadRequest();11function testReadableStreamGetNumReadRequests() {12  var rs = new ReadableStream();13  var reader = rs.getReader();14  var readRequest1 = new ReadableStreamDefaultReaderReadRequest(reader);15  var readRequest2 = new ReadableStreamDefaultReaderReadRequest(reader);16  ReadableStreamAddReadRequest(reader, readRequest1);17  ReadableStreamAddReadRequest(reader, readRequest2);18  assert_equals(ReadableStreamGetNumReadRequests(reader), 2);19}20testReadableStreamGetNumReadRequests();21function testReadableStreamHasDefaultReader() {22  var rs = new ReadableStream();23  var reader = rs.getReader();24  assert_true(ReadableStreamHasDefaultReader(rs));25}26testReadableStreamHasDefaultReader();27function testReadableStreamHasBYOBReader() {28  var rs = new ReadableStream();29  var reader = rs.getReader({mode: "byob"});30  assert_true(ReadableStreamHasBYOBReader(rs));31}32testReadableStreamHasBYOBReader();33function testReadableStreamHasReader() {34  var rs = new ReadableStream();35  var reader = rs.getReader();36  assert_true(ReadableStreamHasReader(rs));37}38testReadableStreamHasReader();39function testReadableStreamInvalidateBYOBRequest() {40  var rs = new ReadableStream();

Using AI Code Generation

1var rs = new ReadableStream();2var reader = rs.getReader();3var controller = rs.getController();4var chunk = new Uint8Array([0x61, 0x62, 0x63]);5var readPromise = reader.read();6var readRequest = reader.[[readRequest]];7ReadableStreamFulfillReadRequest(controller, chunk, false);8readPromise.then(function(result) {9  assert_equals(result.value, chunk);10  assert_false(result.done);11}, t.unreached_func('read() should not be rejected'));12readPromise.then(function(result) {13  assert_equals(result.value, chunk);14  assert_false(result.done);15}, t.unreached_func('read() should not be rejected'));16readPromise.then(function(result) {17  assert_equals(result.value, chunk);18  assert_false(result.done);19}, t.unreached_func('read() should not be rejected'));20readPromise.then(function(result) {21  assert_equals(result.value, chunk);22  assert_false(result.done);23}, t.unreached_func('read() should not be rejected'));24readPromise.then(function(result) {25  assert_equals(result.value, chunk);26  assert_false(result.done);27}, t.unreached_func('read() should not be rejected'));28var rs = new ReadableStream();29var reader = rs.getReader();30var controller = rs.getController();31var chunk = new Uint8Array([0x61, 0x62, 0x63]);32var readIntoPromise = reader.read();33var readIntoRequest = reader.[[readIntoRequest]];34ReadableStreamFulfillReadIntoRequest(controller, chunk, false);35readIntoPromise.then(function(result) {36  assert_equals(result.value, chunk);37  assert_false(result.done);38}, t.unreached_func('readInto() should not be rejected'));39readIntoPromise.then(function(result) {40  assert_equals(result.value, chunk);41  assert_false(result.done);42}, t.unreached_func('readInto() should not be rejected'));43readIntoPromise.then(function(result) {44  assert_equals(result.value, chunk);45  assert_false(result.done);46}, t.unreached_func('readInto() should not be rejected'));47readIntoPromise.then(function(result) {48  assert_equals(result.value, chunk);49  assert_false(result.done);50}, t.un

Using AI Code Generation

1let controller;2let stream = new ReadableStream({3  start(c) {4    controller = c;5  },6  pull() {7  },8});9let reader = stream.getReader();10let read = reader.read();11ReadableStreamFulfillReadRequest(stream, 'a', false);12read.then(result => {13  console.log(result);14});15function ReadableStreamFulfillReadRequest(stream, chunk, done) {16  const reader = stream.[[reader]];17  const readRequest = reader.[[readRequests]].shift();18  readRequest.[[resolve]]({ value: chunk, done: done });19}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.