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How to use ReadableStreamDefaultControllerClose method in wpt

Best JavaScript code snippet using wpt

TransformStreamInternals.js

Source:TransformStreamInternals.js

1/*2 * Copyright (C) 2020 Apple Inc. All rights reserved.3 *4 * Redistribution and use in source and binary forms, with or without5 * modification, are permitted provided that the following conditions6 * are met:7 * 1. Redistributions of source code must retain the above copyright8 *    notice, this list of conditions and the following disclaimer.9 * 2. Redistributions in binary form must reproduce the above copyright10 *    notice, this list of conditions and the following disclaimer in the11 *    documentation and/or other materials provided with the distribution.12 *13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF23 * THE POSSIBILITY OF SUCH DAMAGE.24 */25// @internal26function isTransformStream(stream)27{28    "use strict";29    return @isObject(stream) && !!@getByIdDirectPrivate(stream, "readable");30}31function isTransformStreamDefaultController(controller)32{33    "use strict";34    return @isObject(controller) && !!@getByIdDirectPrivate(controller, "transformAlgorithm");35}36function createTransformStream(startAlgorithm, transformAlgorithm, flushAlgorithm, writableHighWaterMark, writableSizeAlgorithm, readableHighWaterMark, readableSizeAlgorithm)37{38    if (writableHighWaterMark === @undefined)39        writableHighWaterMark = 1;40    if (writableSizeAlgorithm === @undefined)41        writableSizeAlgorithm = () => 1;42    if (readableHighWaterMark === @undefined)43        readableHighWaterMark = 0;44    if (readableSizeAlgorithm === @undefined)45        readableSizeAlgorithm = () => 1;46    @assert(writableHighWaterMark >= 0);47    @assert(readableHighWaterMark >= 0);48    const transform = {};49    @putByIdDirectPrivate(transform, "TransformStream", true);50    const stream = new @TransformStream(transform);51    const startPromiseCapability = @newPromiseCapability(@Promise);52    @initializeTransformStream(stream, startPromiseCapability.@promise, writableHighWaterMark, writableSizeAlgorithm, readableHighWaterMark, readableSizeAlgorithm);53    const controller = new @TransformStreamDefaultController();54    @setUpTransformStreamDefaultController(stream, controller, transformAlgorithm, flushAlgorithm);55    startAlgorithm().@then(() => {56        startPromiseCapability.@resolve.@call();57    }, (error) => {58        startPromiseCapability.@reject.@call(@undefined, error);59    });60    return stream;61}62function initializeTransformStream(stream, startPromise, writableHighWaterMark, writableSizeAlgorithm, readableHighWaterMark, readableSizeAlgorithm)63{64    "use strict";65    const startAlgorithm = () => { return startPromise; };66    const writeAlgorithm = (chunk) => { return @transformStreamDefaultSinkWriteAlgorithm(stream, chunk); }67    const abortAlgorithm = (reason) => { return @transformStreamDefaultSinkAbortAlgorithm(stream, reason); }68    const closeAlgorithm = () => { return @transformStreamDefaultSinkCloseAlgorithm(stream); }69    const writable = @createWritableStream(startAlgorithm, writeAlgorithm, closeAlgorithm, abortAlgorithm, writableHighWaterMark, writableSizeAlgorithm);70    const pullAlgorithm = () => { return @transformStreamDefaultSourcePullAlgorithm(stream); };71    const cancelAlgorithm = (reason) => {72        @transformStreamErrorWritableAndUnblockWrite(stream, reason);73        return @Promise.@resolve();74    };75    const underlyingSource = { };76    @putByIdDirectPrivate(underlyingSource, "start", startAlgorithm);77    @putByIdDirectPrivate(underlyingSource, "pull", pullAlgorithm);78    @putByIdDirectPrivate(underlyingSource, "cancel", cancelAlgorithm);79    const options = { };80    @putByIdDirectPrivate(options, "size", readableSizeAlgorithm);81    @putByIdDirectPrivate(options, "highWaterMark", readableHighWaterMark);82    const readable = new @ReadableStream(underlyingSource, options);83    // The writable to expose to JS through writable getter.84    @putByIdDirectPrivate(stream, "writable", writable);85    // The writable to use for the actual transform algorithms.86    @putByIdDirectPrivate(stream, "internalWritable", @getInternalWritableStream(writable));87    @putByIdDirectPrivate(stream, "readable", readable);88    @putByIdDirectPrivate(stream, "backpressure", @undefined);89    @putByIdDirectPrivate(stream, "backpressureChangePromise", @undefined);90    @transformStreamSetBackpressure(stream, true);91    @putByIdDirectPrivate(stream, "controller", @undefined);92}93function transformStreamError(stream, e)94{95    "use strict";96    const readable = @getByIdDirectPrivate(stream, "readable");97    const readableController = @getByIdDirectPrivate(readable, "readableStreamController");98    @readableStreamDefaultControllerError(readableController, e);99    @transformStreamErrorWritableAndUnblockWrite(stream, e);100}101function transformStreamErrorWritableAndUnblockWrite(stream, e)102{103    "use strict";104    @transformStreamDefaultControllerClearAlgorithms(@getByIdDirectPrivate(stream, "controller"));105    const writable = @getByIdDirectPrivate(stream, "internalWritable");106    @writableStreamDefaultControllerErrorIfNeeded(@getByIdDirectPrivate(writable, "controller"), e);107    if (@getByIdDirectPrivate(stream, "backpressure"))108        @transformStreamSetBackpressure(stream, false);109}110function transformStreamSetBackpressure(stream, backpressure)111{112    "use strict";113    @assert(@getByIdDirectPrivate(stream, "backpressure") !== backpressure);114    const backpressureChangePromise = @getByIdDirectPrivate(stream, "backpressureChangePromise");115    if (backpressureChangePromise !== @undefined)116        backpressureChangePromise.@resolve.@call();117    @putByIdDirectPrivate(stream, "backpressureChangePromise", @newPromiseCapability(@Promise));118    @putByIdDirectPrivate(stream, "backpressure", backpressure);119}120function setUpTransformStreamDefaultController(stream, controller, transformAlgorithm, flushAlgorithm)121{122    "use strict";123    @assert(@isTransformStream(stream));124    @assert(@getByIdDirectPrivate(stream, "controller") === @undefined);125    @putByIdDirectPrivate(controller, "stream", stream);126    @putByIdDirectPrivate(stream, "controller", controller);127    @putByIdDirectPrivate(controller, "transformAlgorithm", transformAlgorithm);128    @putByIdDirectPrivate(controller, "flushAlgorithm", flushAlgorithm);129}130function setUpTransformStreamDefaultControllerFromTransformer(stream, transformer, transformerDict)131{132    "use strict";133    const controller = new @TransformStreamDefaultController();134    let transformAlgorithm = (chunk) => {135        try {136            @transformStreamDefaultControllerEnqueue(controller, chunk);137        } catch (e) {138            return @Promise.@reject(e);139        }140        return @Promise.@resolve();141    };142    let flushAlgorithm = () => { return @Promise.@resolve(); };143    if ("transform" in transformerDict)144        transformAlgorithm = (chunk) => {145            return @promiseInvokeOrNoopMethod(transformer, transformerDict["transform"], [chunk, controller]);146        };147    if ("flush" in transformerDict) {148        flushAlgorithm = () => {149            return @promiseInvokeOrNoopMethod(transformer, transformerDict["flush"], [controller]);150        };151    }152    @setUpTransformStreamDefaultController(stream, controller, transformAlgorithm, flushAlgorithm);153}154function transformStreamDefaultControllerClearAlgorithms(controller)155{156    "use strict";157    // We set transformAlgorithm to true to allow GC but keep the isTransformStreamDefaultController check.158    @putByIdDirectPrivate(controller, "transformAlgorithm", true);159    @putByIdDirectPrivate(controller, "flushAlgorithm", @undefined);160}161function transformStreamDefaultControllerEnqueue(controller, chunk)162{163    "use strict";164    const stream = @getByIdDirectPrivate(controller, "stream");165    const readable = @getByIdDirectPrivate(stream, "readable");166    const readableController = @getByIdDirectPrivate(readable, "readableStreamController");167    @assert(readableController !== @undefined);168    if (!@readableStreamDefaultControllerCanCloseOrEnqueue(readableController))169        @throwTypeError("TransformStream.readable cannot close or enqueue");170    try {171        @readableStreamDefaultControllerEnqueue(readableController, chunk);172    } catch (e) {173        @transformStreamErrorWritableAndUnblockWrite(stream, e);174        throw @getByIdDirectPrivate(readable, "storedError");175    }176    const backpressure = !@readableStreamDefaultControllerShouldCallPull(readableController);177    if (backpressure !== @getByIdDirectPrivate(stream, "backpressure")) {178        @assert(backpressure);179        @transformStreamSetBackpressure(stream, true);180    }181}182function transformStreamDefaultControllerError(controller, e)183{184    "use strict";185    @transformStreamError(@getByIdDirectPrivate(controller, "stream"), e);186}187function transformStreamDefaultControllerPerformTransform(controller, chunk)188{189    "use strict";190    const promiseCapability = @newPromiseCapability(@Promise);191    const transformPromise = @getByIdDirectPrivate(controller, "transformAlgorithm").@call(@undefined, chunk);192    transformPromise.@then(() => {193        promiseCapability.@resolve();194    }, (r) => {195        @transformStreamError(@getByIdDirectPrivate(controller, "stream"), r);196        promiseCapability.@reject.@call(@undefined, r);197    });198    return promiseCapability.@promise;199}200function transformStreamDefaultControllerTerminate(controller)201{202    "use strict";203    const stream = @getByIdDirectPrivate(controller, "stream");204    const readable = @getByIdDirectPrivate(stream, "readable");205    const readableController = @getByIdDirectPrivate(readable, "readableStreamController");206    // FIXME: Update readableStreamDefaultControllerClose to make this check.207    if (@readableStreamDefaultControllerCanCloseOrEnqueue(readableController))208        @readableStreamDefaultControllerClose(readableController);209    const error = @makeTypeError("the stream has been terminated");210    @transformStreamErrorWritableAndUnblockWrite(stream, error);211}212function transformStreamDefaultSinkWriteAlgorithm(stream, chunk)213{214    "use strict";215    const writable = @getByIdDirectPrivate(stream, "internalWritable");216    @assert(@getByIdDirectPrivate(writable, "state") === "writable");217    const controller = @getByIdDirectPrivate(stream, "controller");218    if (@getByIdDirectPrivate(stream, "backpressure")) {219        const promiseCapability = @newPromiseCapability(@Promise);220        const backpressureChangePromise = @getByIdDirectPrivate(stream, "backpressureChangePromise");221        @assert(backpressureChangePromise !== @undefined);222        backpressureChangePromise.@promise.@then(() => {223            const state = @getByIdDirectPrivate(writable, "state");224            if (state === "erroring") {225                promiseCapability.@reject.@call(@undefined, @getByIdDirectPrivate(writable, "storedError"));226                return;227            }228            @assert(state === "writable");229            @transformStreamDefaultControllerPerformTransform(controller, chunk).@then(() => {230                promiseCapability.@resolve();231            }, (e) => {232                promiseCapability.@reject.@call(@undefined, e);233            });234        }, (e) => {235            promiseCapability.@reject.@call(@undefined, e);236        });237        return promiseCapability.@promise;238    }239    return @transformStreamDefaultControllerPerformTransform(controller, chunk);240}241function transformStreamDefaultSinkAbortAlgorithm(stream, reason)242{243    "use strict";244    @transformStreamError(stream, reason);245    return @Promise.@resolve();246}247function transformStreamDefaultSinkCloseAlgorithm(stream)248{249    "use strict";250    const readable = @getByIdDirectPrivate(stream, "readable");251    const controller = @getByIdDirectPrivate(stream, "controller");252    const readableController = @getByIdDirectPrivate(readable, "readableStreamController");253    const flushAlgorithm = @getByIdDirectPrivate(controller, "flushAlgorithm");254    @assert(flushAlgorithm !== @undefined);255    const flushPromise = @getByIdDirectPrivate(controller, "flushAlgorithm").@call();256    @transformStreamDefaultControllerClearAlgorithms(controller);257    const promiseCapability = @newPromiseCapability(@Promise);258    flushPromise.@then(() => {259        if (@getByIdDirectPrivate(readable, "state") === @streamErrored) {260            promiseCapability.@reject.@call(@undefined, @getByIdDirectPrivate(readable, "storedError"));261            return;262        }263        // FIXME: Update readableStreamDefaultControllerClose to make this check.264        if (@readableStreamDefaultControllerCanCloseOrEnqueue(readableController))265            @readableStreamDefaultControllerClose(readableController);266        promiseCapability.@resolve();267    }, (r) => {268        @transformStreamError(@getByIdDirectPrivate(controller, "stream"), r);269        promiseCapability.@reject.@call(@undefined, @getByIdDirectPrivate(readable, "storedError"));270    });271    return promiseCapability.@promise;272}273function transformStreamDefaultSourcePullAlgorithm(stream)274{275    "use strict";276    @assert(@getByIdDirectPrivate(stream, "backpressure"));277    @assert(@getByIdDirectPrivate(stream, "backpressureChangePromise") !== @undefined);278    @transformStreamSetBackpressure(stream, false);279    return @getByIdDirectPrivate(stream, "backpressureChangePromise").@promise;...

transform_stream_controller.ts

Source:transform_stream_controller.ts

...163) {164  const stream = controller.controlledTransformStream;165  const readableController = stream.readable.readableStreamController;166  if (ReadableStreamDefaultControllerCanCloseOrEnqueue(readableController)) {167    ReadableStreamDefaultControllerClose(readableController);168  }169  const error = new TypeError("stream ended");170  TransformStreamErrorWritableAndUnblockWrite(stream, error);171}172export function TransformStreamDefaultSinkWriteAlgorithm(173  stream: TransformStream,174  chunk175) {176  Assert(stream.writable.state === "writable");177  const controller = stream.transformStreamController;178  if (stream.backpressure) {179    const p = stream.backpressureChangePromise;180    Assert(p !== void 0);181    return p.then(() => {182      const writable = stream.writable;183      const { state } = writable;184      if (state === "erroring") {185        throw writable.storedError;186      }187      Assert(state === "writable");188      return TransformStreamDefaultControllerPerformTransform(189        controller,190        chunk191      );192    });193  }194  return TransformStreamDefaultControllerPerformTransform(controller, chunk);195}196export async function TransformStreamDefaultSinkAbortAlgorithm(197  stream: TransformStream,198  reason199) {200  TransformStreamError(stream, reason);201}202export function TransformStreamDefaultSinkCloseAlgorithm(203  stream: TransformStream204) {205  const { readable } = stream;206  const controller = stream.transformStreamController;207  const flushPromise = controller.flushAlgorithm();208  TransformStreamDefaultControllerClearAlgorithms(controller);209  return flushPromise210    .then(() => {211      if (readable.state === "errored") {212        throw readable.storedError;213      }214      const readableController = readable.readableStreamController;215      if (216        ReadableStreamDefaultControllerCanCloseOrEnqueue(readableController)217      ) {218        ReadableStreamDefaultControllerClose(readableController);219      }220    })221    .catch(r => {222      TransformStreamError(stream, r);223      throw readable.storedError;224    });225}226export function TransformStreamDefaultSourcePullAlgorithm(227  stream: TransformStream228) {229  Assert(stream.backpressure);230  Assert(stream.backpressureChangePromise !== void 0);231  TransformStreamSetBackpressure(stream, false);232  return stream.backpressureChangePromise;...

tee.ts

Source:tee.ts

...60      },61      _closeSteps: () => {62        reading = false;63        if (!canceled1) {64          ReadableStreamDefaultControllerClose(branch1._readableStreamController as ReadableStreamDefaultController<R>);65        }66        if (!canceled2) {67          ReadableStreamDefaultControllerClose(branch2._readableStreamController as ReadableStreamDefaultController<R>);68        }69      },70      _errorSteps: () => {71        reading = false;72      }73    };74    ReadableStreamDefaultReaderRead(reader, readRequest);75    return promiseResolvedWith(undefined);76  }77  function cancel1Algorithm(reason: any): Promise<void> {78    canceled1 = true;79    reason1 = reason;80    if (canceled2) {81      const compositeReason = CreateArrayFromList([reason1, reason2]);...

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.close();4  }5});6rs.getReader().read().then(({ value, done }) => {7});8var rs = new ReadableStream({9  start(controller) {10    controller.enqueue('a');11    controller.enqueue('b');12    controller.enqueue('c');13  }14});15var reader = rs.getReader();16var read = () => {17  reader.read().then(({ value, done }) => {18    if (done) return;19    console.log(value);20    read();21  });22};23read();24var rs = new ReadableStream({25  start(controller) {26    controller.error('kaboom');27  }28});29rs.getReader().read().catch(e => console.error(e));30var rs = new ReadableStream({31  pull(controller) {32    var view = controller.byobRequest.view;33    view[0] = 0x61;34    view[1] = 0x62;35    view[2] = 0x63;36    controller.byobRequest.respond(3);37  }38});39var reader = rs.getReader({ mode: 'byob' });40reader.read(new Uint8Array(3)).then(({ value, done }) => {41  console.log(value);42  console.log(done);43});44var rs = new ReadableStream({45  pull(controller) {46    var view = controller.byobRequest.view;47    view[0] = 0x61;48    view[1] = 0x62;49    view[2] = 0x63;50    controller.byobRequest.respond(3);51  }52});53var reader = rs.getReader({ mode:

Using AI Code Generation

1var rs = new ReadableStream({2    start(controller) {3        controller.enqueue("a");4        controller.enqueue("b");5        controller.enqueue("c");6        controller.close();7    }8});9var reader = rs.getReader();10reader.read().then(function(result) {11    assert_equals(result.value, "a", 'result.value should be "a"');12    assert_false(result.done, 'result.done should be false');13    return reader.read();14}).then(function(result) {15    assert_equals(result.value, "b", 'result.value should be "b"');16    assert_false(result.done, 'result.done should be false');17    return reader.read();18}).then(function(result) {19    assert_equals(result.value, "c", 'result.value should be "c"');20    assert_false(result.done, 'result.done should be false');21    return reader.read();22}).then(function(result) {23    assert_equals(result.value, undefined, 'result.value should be undefined');24    assert_true(result.done, 'result.done should be true');25    return reader.read();26}).then(function(result) {27    assert_equals(result.value, undefined, 'result.value should be undefined');28    assert_true(result.done, 'result.done should be true');29    return reader.read();30}).then(function(result) {31    assert_equals(result.value, undefined, 'result.value should be undefined');32    assert_true(result.done, 'result.done should be true');33    return reader.read();34}).then(function(result) {35    assert_equals(result.value, undefined, 'result.value should be undefined');36    assert_true(result.done, 'result.done should be true');37    return reader.read();38}).then(function(result) {39    assert_equals(result.value, undefined, 'result.value should be undefined');40    assert_true(result.done, 'result.done should be true');41    return reader.read();42}).then(function(result) {43    assert_equals(result.value, undefined, 'result.value should be undefined');44    assert_true(result.done, 'result.done should be true');45    return reader.read();46}).then(function(result) {47    assert_equals(result.value, undefined, 'result.value should be undefined');48    assert_true(result.done, 'result.done should be true');49    return reader.read();50}).then(function(result) {

Using AI Code Generation

1const { ReadableStream, CountQueuingStrategy } = require('stream/web');2const { ReadableStreamDefaultControllerClose } = require('stream/web');3const { ReadableStreamDefaultControllerError } = require('stream/web');4const rs = new ReadableStream({5  start(controller) {6    controller.enqueue('a');7    controller.enqueue('b');8    controller.enqueue('c');9    ReadableStreamDefaultControllerClose(controller);10  },11  pull(controller) {12    console.log('pull()');13  },14  cancel(reason) {15    console.log('cancel()', reason);16  }17});18const reader = rs.getReader();19const read = () => {20  reader.read().then(({ value, done }) => {21    if (done) {22      console.log('[done]');23      return;24    }25    console.log(value);26    read();27  });28};29read();30const { WritableStream, CountQueuingStrategy } = require('stream/web');31const { WritableStreamDefaultControllerClose } = require('stream/web');32const { WritableStreamDefaultControllerError } = require('stream/web');33const ws = new WritableStream({34  start(controller) {35  },36  write(chunk, controller) {37    console.log(chunk);38  },39  close(controller) {40    console.log('[done]');41  },42  abort(reason) {43    console.log('abort()', reason);44  }45});46const writer = ws.getWriter();47writer.write('a');48writer.write('b');49writer.write('c');50writer.close();

Using AI Code Generation

1readableStreamDefaultControllerClose(controller)2{3    const stream = controller._controlledReadableStream;4    if (stream._state !== 'readable') {5        return;6    }7    const reader = stream._reader;8    if (reader === undefined) {9        ReadableStreamClose(stream);10    } else {11        ReadableStreamReaderGenericRelease(reader);12        ReadableStreamClose(stream);13    }14}15readableStreamDefaultControllerEnqueue(controller, chunk)16{17    const stream = controller._controlledReadableStream;18    if (stream._state !== 'readable') {19        return;20    }21    const reader = stream._reader;22    if (reader === undefined) {23        ReadableStreamAddReadRequest(stream, new DefaultReadRequest());24    } else {25        if (reader._readRequests.length) {26            ReadableStreamFulfillReadRequest(stream, chunk, reader._readRequests.shift());27        } else {28            try {29                const result = reader._readIntoRequests[0]._reader._readIntoAlgorithm(chunk);30                if (result === ReadableStreamReadIntoResult.DONE) {31                    ReadableStreamFulfillReadIntoRequest(stream, chunk, reader._readIntoRequests.shift());32                    ReadableStreamReaderGenericRelease(reader);33                }34            } catch (e) {35                ReadableStreamDefaultControllerErrorIfNeeded(controller, e);36            }37        }38    }39}40readableStreamDefaultControllerError(controller, e)41{42    const stream = controller._controlledReadableStream;43    if (stream._state !== 'readable') {44        return;45    }46    const reader = stream._reader;47    if (reader === undefined) {48        ReadableStreamError(stream, e);49    } else {50        ReadableStreamReaderGenericRelease(reader);51        ReadableStreamError(stream, e);52    }53}54readableStreamDefaultControllerGetDesiredSize(controller)55{56    const state = controller._controlledReadableStream._state;57    if (state === 'errored') {58        return null;59    }60    if (state === 'closed') {61        return 0;62    }

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.close();4  }5});6rs.getReader().read().then(result => {7});8var rs = new ReadableStream({9  start(controller) {10    controller.enqueue('a');11    controller.enqueue('b');12    controller.enqueue('c');13  }14});15rs.getReader().read().then(result => {16  return rs.getReader().read();17}).then(result => {18  return rs.getReader().read();19}).then(result => {20  return rs.getReader().read();21}).then(result => {22});23var rs = new ReadableStream({24  start(controller) {25    controller.error('kaboom');26  }27});28rs.getReader().read().catch(e => {29});30var rs = new ReadableStream({31  start(controller) {32    controller.enqueue('a');33    controller.enqueue('b');34  }35});36var rs = new ReadableStream({37  start(controller) {38    controller.enqueue('a');39    console.log(controller.desiredSize);

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.close();4  }5});6rs.getReader().read().then(({ value, done }) => {7});8test(() => {9  const rs = new ReadableStream({10    start(c) {11      c.close();12    }13  });14  const reader = rs.getReader();15  return reader.read().then(({ value, done }) => {16    assert_equals(value, undefined, 'value');17    assert_true(done, 'done');18  });19}, 'ReadableStream with byte source: read() after close()');20test(() => {21  const rs = new ReadableStream({22    start(c) {23      c.close();24    }25  });26  const reader = rs.getReader();27  return reader.read().then(({ value, done }) => {28    assert_equals(value, undefined, 'value');29    assert_true(done, 'done');30  });31}, 'ReadableStream with byte source: read() after close()');32test(() => {33  const rs = new ReadableStream({34    start(c) {35      c.close();36    }37  });38  const reader = rs.getReader();39  return reader.read().then(({ value, done }) => {40    assert_equals(value, undefined, 'value');41    assert_true(done, 'done');42  });43}, 'ReadableStream with byte source: read() after close()');

Using AI Code Generation

1test(function() {2  var rs = new ReadableStream({3    start: function(c) {4      c.close();5    }6  });7  assert_equals(rs.state, 'closed');8}, 'ReadableStreamDefaultControllerClose should close the stream');9test(function() {10  var rs = new ReadableStream({11    start: function(c) {12      c.enqueue('a');13    }14  });15  assert_equals(rs.state, 'readable');16}, 'ReadableStreamDefaultControllerEnqueue should enqueue a chunk');17test(function() {18  var rs = new ReadableStream({19    start: function(c) {20      c.error('error');21    }22  });23  assert_equals(rs.state, 'errored');24}, 'ReadableStreamDefaultControllerError should error the stream');25test(function() {26  var rs = new ReadableStream({27    start: function(c) {28      assert_equals(c.desiredSize, 1);29    }30  });31  assert_equals(rs.state, 'readable');32}, 'ReadableStreamDefaultControllerGetDesiredSize should return the desired size');

Using AI Code Generation

1  ReadableStreamDefaultControllerClose ( controller )2const { ReadableStream, isReadableStream } = require('stream/web');3const rs = new ReadableStream({4  start(controller) {5    controller.close();6  }7});8assert(isReadableStream(rs));9assert(rs.locked);10  ReadableStreamDefaultControllerEnqueue ( controller, chunk )11const { ReadableStream, isReadableStream } = require('stream/web');12const rs = new ReadableStream({13  start(controller) {14    controller.enqueue('a');15  }16});17assert(isReadableStream(rs));18assert(rs.locked);19  ReadableStreamDefaultControllerError ( controller, e )20const { ReadableStream

Using AI Code Generation

1var rs = new ReadableStream({2    start: function (controller) {3        controller.close();4    }5});6var reader = rs.getReader();7var rs = new ReadableStream({8    start: function (controller) {9        controller.enqueue("a");10        controller.enqueue("b");11        controller.enqueue("c");12    }13});14var reader = rs.getReader();15var rs = new ReadableStream({16    start: function (controller) {17        controller.error(new Error("boom"));18    }19});20var reader = rs.getReader();21reader.read().catch(function (e) {22});23var rs = new ReadableStream({24    start: function (controller) {25        controller.enqueue("a");26        controller.enqueue("b");27    }28});

Using AI Code Generation

1const assert = async_test("The stream should be closed successfully");2const start = async_test("Start method should be called");3const pull = async_test("Pull method should be called");4const cancel = async_test("Cancel method should be called");5let controller;6let startCalled = false;7let pullCalled = false;8let cancelCalled = false;9const rs = new ReadableStream({10  start(c) {11    controller = c;12    start.step(() => {13      assert_equals(controller.desiredSize, 1, 'desiredSize');14    });15    start.step(() => {16      assert_equals(controller.byobRequest, undefined, 'byobRequest');17    });18    start.step(() => {19      assert_equals(controller.desiredSize, 1, 'desiredSize');20    });21    start.step(() => {22      assert_equals(controller.byobRequest, undefined, 'byobRequest');23    });24    start.step(() => {25      assert_equals(controller.desiredSize, 1, 'desiredSize');26    });27    start.step(() => {28      assert_equals(controller.byobRequest, undefined, 'byobRequest');29    });30    start.step(() => {31      assert_equals(controller.desiredSize, 1, 'desiredSize');32    });33    start.step(() => {34      assert_equals(controller.byobRequest, undefined, 'byobRequest');35    });36    start.step(() => {37      assert_equals(controller.desiredSize, 1, 'desiredSize');38    });39    start.step(() => {40      assert_equals(controller.byobRequest, undefined, 'byobRequest');41    });42    start.step(() => {43      assert_equals(controller.desiredSize, 1, 'desiredSize');44    });45    start.step(() => {46      assert_equals(controller.byobRequest, undefined, 'byobRequest');47    });48    start.step(() => {49      assert_equals(controller.desiredSize, 1, 'desiredSize');50    });51    start.step(() => {52      assert_equals(controller.byobRequest, undefined, 'byobRequest');53    });54    start.step(() => {55      assert_equals(controller.desiredSize, 1, 'desiredSize');56    });57    start.step(() => {58      assert_equals(controller.byobRequest, undefined, 'byobRequest');59    });60    start.step(() => {61      assert_equals(controller.desiredSize,

Automation Testing Tutorials

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