How to use IsWritableStreamLocked method in wpt

Best JavaScript code snippet using wpt

WritableStream.js

Source:WritableStream.js

...135    get locked() {136      if (!IsWritableStream(this)) {137        throw new TypeError(streamErrors.illegalInvocation);138      }139      return IsWritableStreamLocked(this);140    }141    abort(reason) {142      if (!IsWritableStream(this)) {143        return Promise_reject(new TypeError(streamErrors.illegalInvocation));144      }145      if (IsWritableStreamLocked(this)) {146        return Promise_reject(new TypeError(errAbortLockedStream));147      }148      return WritableStreamAbort(this, reason);149    }150    getWriter() {151      if (!IsWritableStream(this)) {152        throw new TypeError(streamErrors.illegalInvocation);153      }154      return AcquireWritableStreamDefaultWriter(this);155    }156  }157  // General Writable Stream Abstract Operations158  function AcquireWritableStreamDefaultWriter(stream) {159    return new WritableStreamDefaultWriter(stream);160  }161  function IsWritableStream(x) {162    return hasOwnPropertyNoThrow(x, _writableStreamController);163  }164  function IsWritableStreamLocked(stream) {165    // assert(IsWritableStream(stream),166    //        '! IsWritableStream(stream) is true.');167    return stream[_writer] !== undefined;168  }169  function WritableStreamAbort(stream, reason) {170    const state = stream[_stateAndFlags] & STATE_MASK;171    if (state === CLOSED) {172      return Promise_resolve(undefined);173    }174    if (state === ERRORED) {175      return Promise_reject(stream[_storedError]);176    }177    const error = new TypeError(errStreamAborting);178    if (stream[_pendingAbortRequest] !== undefined) {179      return Promise_reject(error);180    }181    // assert(state === WRITABLE || state === ERRORING,182    //        '_state_ is `"writable"` or `"erroring"`');183    const wasAlreadyErroring = state === ERRORING;184    if (wasAlreadyErroring) {185      reason = undefined;186    }187    const promise = v8.createPromise();188    stream[_pendingAbortRequest] = {promise, reason, wasAlreadyErroring};189    if (!wasAlreadyErroring) {190      WritableStreamStartErroring(stream, error);191    }192    return promise;193  }194  // Writable Stream Abstract Operations Used by Controllers195  function WritableStreamAddWriteRequest(stream) {196    // assert(IsWritableStreamLocked(stream),197    //        '! IsWritableStreamLocked(writer) is true.');198    // assert((stream[_stateAndFlags] & STATE_MASK) === WRITABLE,199    //        'stream.[[state]] is "writable".');200    const promise = v8.createPromise();201    stream[_writeRequests].push(promise);202    return promise;203  }204  function WritableStreamDealWithRejection(stream, error) {205    const state = stream[_stateAndFlags] & STATE_MASK;206    if (state === WRITABLE) {207      WritableStreamStartErroring(stream, error);208      return;209    }210    // assert(state === ERRORING, '_state_ is `"erroring"`');211    WritableStreamFinishErroring(stream);212  }213  function WritableStreamStartErroring(stream, reason) {214    // assert(stream[_storedError] === undefined,215    //        '_stream_.[[storedError]] is *undefined*');216    // assert((stream[_stateAndFlags] & STATE_MASK) === WRITABLE,217    //        '_stream_.[[state]] is `"writable"`');218    const controller = stream[_writableStreamController];219    // assert(controller !== undefined, '_controller_ is not *undefined*');220    stream[_stateAndFlags] = (stream[_stateAndFlags] & ~STATE_MASK) | ERRORING;221    stream[_storedError] = reason;222    const writer = stream[_writer];223    if (writer !== undefined) {224      WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);225    }226    if (!WritableStreamHasOperationMarkedInFlight(stream) &&227        controller[_started]) {228      WritableStreamFinishErroring(stream);229    }230  }231  function WritableStreamFinishErroring(stream) {232    // assert((stream[_stateAndFlags] & STATE_MASK) === ERRORING,233    //        '_stream_.[[state]] is `"erroring"`');234    // assert(!WritableStreamHasOperationMarkedInFlight(stream),235    //        '! WritableStreamHasOperationMarkedInFlight(_stream_) is ' +236    //        '*false*');237    stream[_stateAndFlags] = (stream[_stateAndFlags] & ~STATE_MASK) | ERRORED;238    WritableStreamDefaultControllerErrorSteps(239        stream[_writableStreamController]);240    const storedError = stream[_storedError];241    rejectPromises(stream[_writeRequests], storedError);242    stream[_writeRequests] = new binding.SimpleQueue();243    if (stream[_pendingAbortRequest] === undefined) {244      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);245      return;246    }247    const abortRequest = stream[_pendingAbortRequest];248    stream[_pendingAbortRequest] = undefined;249    if (abortRequest.wasAlreadyErroring === true) {250      rejectPromise(abortRequest.promise, storedError);251      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);252      return;253    }254    const promise = WritableStreamDefaultControllerAbortSteps(255        stream[_writableStreamController], abortRequest.reason);256    thenPromise(257        promise,258        () => {259          resolvePromise(abortRequest.promise, undefined);260          WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);261        },262        reason => {263          rejectPromise(abortRequest.promise, reason);264          WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);265        });266  }267  function WritableStreamFinishInFlightWrite(stream) {268    // assert(stream[_inFlightWriteRequest] !== undefined,269    //        '_stream_.[[inFlightWriteRequest]] is not *undefined*.');270    resolvePromise(stream[_inFlightWriteRequest], undefined);271    stream[_inFlightWriteRequest] = undefined;272  }273  function WritableStreamFinishInFlightWriteWithError(stream, error) {274    // assert(stream[_inFlightWriteRequest] !== undefined,275    //        '_stream_.[[inFlightWriteRequest]] is not *undefined*.');276    rejectPromise(stream[_inFlightWriteRequest], error);277    stream[_inFlightWriteRequest] = undefined;278    // const state = stream[_stateAndFlags] & STATE_MASK;279    // assert(state === WRITABLE || state === ERRORING,280    //        '_stream_.[[state]] is `"writable"` or `"erroring"`');281    WritableStreamDealWithRejection(stream, error);282  }283  function WritableStreamFinishInFlightClose(stream) {284    // assert(stream[_inFlightCloseRequest] !== undefined,285    //        '_stream_.[[inFlightCloseRequest]] is not *undefined*.');286    resolvePromise(stream[_inFlightCloseRequest], undefined);287    stream[_inFlightCloseRequest] = undefined;288    const state = stream[_stateAndFlags] & STATE_MASK;289    // assert(state === WRITABLE || state === ERRORING,290    //        '_stream_.[[state]] is `"writable"` or `"erroring"`');291    if (state === ERRORING) {292      stream[_storedError] = undefined;293      if (stream[_pendingAbortRequest] !== undefined) {294        resolvePromise(stream[_pendingAbortRequest].promise, undefined);295        stream[_pendingAbortRequest] = undefined;296      }297    }298    stream[_stateAndFlags] = (stream[_stateAndFlags] & ~STATE_MASK) | CLOSED;299    const writer = stream[_writer];300    if (writer !== undefined) {301      resolvePromise(writer[_closedPromise], undefined);302    }303    // assert(stream[_pendingAbortRequest] === undefined,304    //        '_stream_.[[pendingAbortRequest]] is *undefined*');305    // assert(stream[_storedError] === undefined,306    //        '_stream_.[[storedError]] is *undefined*');307  }308  function WritableStreamFinishInFlightCloseWithError(stream, error) {309    // assert(stream[_inFlightCloseRequest] !== undefined,310    //        '_stream_.[[inFlightCloseRequest]] is not *undefined*.');311    rejectPromise(stream[_inFlightCloseRequest], error);312    stream[_inFlightCloseRequest] = undefined;313    // const state = stream[_stateAndFlags] & STATE_MASK;314    // assert(state === WRITABLE || state === ERRORING,315    //        '_stream_.[[state]] is `"writable"` or `"erroring"`');316    if (stream[_pendingAbortRequest] !== undefined) {317      rejectPromise(stream[_pendingAbortRequest].promise, error);318      stream[_pendingAbortRequest] = undefined;319    }320    WritableStreamDealWithRejection(stream, error);321  }322  function WritableStreamCloseQueuedOrInFlight(stream) {323    return stream[_closeRequest] !== undefined ||324        stream[_inFlightCloseRequest] !== undefined;325  }326  function WritableStreamHasOperationMarkedInFlight(stream) {327    return stream[_inFlightWriteRequest] !== undefined ||328        stream[_inFlightCloseRequest] !== undefined;329  }330  function WritableStreamMarkCloseRequestInFlight(stream) {331    // assert(stream[_inFlightCloseRequest] === undefined,332    //        '_stream_.[[inFlightCloseRequest]] is *undefined*.');333    // assert(stream[_closeRequest] !== undefined,334    //        '_stream_.[[closeRequest]] is not *undefined*.');335    stream[_inFlightCloseRequest] = stream[_closeRequest];336    stream[_closeRequest] = undefined;337  }338  function WritableStreamMarkFirstWriteRequestInFlight(stream) {339    // assert(stream[_inFlightWriteRequest] === undefined,340    //        '_stream_.[[inFlightWriteRequest]] is *undefined*.');341    // assert(stream[_writeRequests].length !== 0,342    //        '_stream_.[[writeRequests]] is not empty.');343    const writeRequest = stream[_writeRequests].shift();344    stream[_inFlightWriteRequest] = writeRequest;345  }346  function WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {347    // assert((stream[_stateAndFlags] & STATE_MASK) === ERRORED,348    //        '_stream_.[[state]] is `"errored"`');349    if (stream[_closeRequest] !== undefined) {350      // assert(stream[_inFlightCloseRequest] === undefined,351      //        '_stream_.[[inFlightCloseRequest]] is *undefined*');352      rejectPromise(stream[_closeRequest], stream[_storedError]);353      stream[_closeRequest] = undefined;354    }355    const writer = stream[_writer];356    if (writer !== undefined) {357      rejectPromise(writer[_closedPromise], stream[_storedError]);358      markPromiseAsHandled(writer[_closedPromise]);359    }360  }361  function WritableStreamUpdateBackpressure(stream, backpressure) {362    // assert((stream[_stateAndFlags] & STATE_MASK) === WRITABLE,363    //        'stream.[[state]] is "writable".');364    // assert(!WritableStreamCloseQueuedOrInFlight(stream),365    //        'WritableStreamCloseQueuedOrInFlight(_stream_) is *false*.');366    const writer = stream[_writer];367    if (writer !== undefined &&368        backpressure !== Boolean(stream[_stateAndFlags] & BACKPRESSURE_FLAG)) {369      if (backpressure) {370        writer[_readyPromise] = v8.createPromise();371      } else {372        // assert(!backpressure, '_backpressure_ is *false*.');373        resolvePromise(writer[_readyPromise], undefined);374      }375    }376    if (backpressure) {377      stream[_stateAndFlags] |= BACKPRESSURE_FLAG;378    } else {379      stream[_stateAndFlags] &= ~BACKPRESSURE_FLAG;380    }381  }382  // Functions to expose internals for ReadableStream.pipeTo. These are not383  // part of the standard.384  function isWritableStreamErrored(stream) {385    // assert(386    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');387    return (stream[_stateAndFlags] & STATE_MASK) === ERRORED;388  }389  function isWritableStreamClosingOrClosed(stream) {390    // assert(391    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');392    return WritableStreamCloseQueuedOrInFlight(stream) ||393        (stream[_stateAndFlags] & STATE_MASK) === CLOSED;394  }395  function getWritableStreamStoredError(stream) {396    // assert(397    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');398    return stream[_storedError];399  }400  // Expose internals for TransformStream401  function isWritableStreamWritable(stream) {402    // assert(403    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');404    return  (stream[_stateAndFlags] & STATE_MASK) === WRITABLE;405  }406  function isWritableStreamErroring(stream) {407    // assert(408    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');409    return  (stream[_stateAndFlags] & STATE_MASK) === ERRORING;410  }411  function getWritableStreamController(stream) {412    // assert(413    //     IsWritableStream(stream), '! IsWritableStream(stream) is true.');414    return stream[_writableStreamController];415  }416  class WritableStreamDefaultWriter {417    constructor(stream) {418      if (!IsWritableStream(stream)) {419        throw new TypeError(streamErrors.illegalConstructor);420      }421      if (IsWritableStreamLocked(stream)) {422        throw new TypeError(streamErrors.illegalConstructor);423      }424      this[_ownerWritableStream] = stream;425      stream[_writer] = this;426      const state = stream[_stateAndFlags] & STATE_MASK;427      switch (state) {428        case WRITABLE: {429          if (!WritableStreamCloseQueuedOrInFlight(stream) &&430              stream[_stateAndFlags] & BACKPRESSURE_FLAG) {431            this[_readyPromise] = v8.createPromise();432          } else {433            this[_readyPromise] = Promise_resolve(undefined);434          }435          this[_closedPromise] = v8.createPromise();...

writable_stream.ts

Source:writable_stream.ts

1// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.2import {3  AbortRequest,4  acquireWritableStreamDefaultWriter,5  Deferred,6  initializeWritableStream,7  isWritableStream,8  isWritableStreamLocked,9  makeSizeAlgorithmFromSizeFunction,10  setFunctionName,11  setUpWritableStreamDefaultControllerFromUnderlyingSink,12  writableStreamAbort,13  writableStreamClose,14  writableStreamCloseQueuedOrInFlight,15  validateAndNormalizeHighWaterMark,16} from "./internals.ts";17import * as sym from "./symbols.ts";18import { WritableStreamDefaultControllerImpl } from "./writable_stream_default_controller.ts";19import { WritableStreamDefaultWriterImpl } from "./writable_stream_default_writer.ts";20import { customInspect } from "../console.ts";21// eslint-disable-next-line @typescript-eslint/no-explicit-any22export class WritableStreamImpl<W = any> implements WritableStream<W> {23  [sym.backpressure]: boolean;24  [sym.closeRequest]?: Deferred<void>;25  [sym.inFlightWriteRequest]?: Required<Deferred<void>>;26  [sym.inFlightCloseRequest]?: Deferred<void>;27  [sym.pendingAbortRequest]?: AbortRequest;28  [sym.state]: "writable" | "closed" | "erroring" | "errored";29  // eslint-disable-next-line @typescript-eslint/no-explicit-any30  [sym.storedError]?: any;31  [sym.writableStreamController]?: WritableStreamDefaultControllerImpl<W>;32  [sym.writer]?: WritableStreamDefaultWriterImpl<W>;33  [sym.writeRequests]: Array<Required<Deferred<void>>>;34  constructor(35    underlyingSink: UnderlyingSink = {},36    strategy: QueuingStrategy = {}37  ) {38    initializeWritableStream(this);39    const size = strategy.size;40    let highWaterMark = strategy.highWaterMark ?? 1;41    const { type } = underlyingSink;42    if (type !== undefined) {43      throw new RangeError(`Sink type of "${String(type)}" not supported.`);44    }45    const sizeAlgorithm = makeSizeAlgorithmFromSizeFunction(size);46    highWaterMark = validateAndNormalizeHighWaterMark(highWaterMark);47    setUpWritableStreamDefaultControllerFromUnderlyingSink(48      this,49      underlyingSink,50      highWaterMark,51      sizeAlgorithm52    );53  }54  get locked(): boolean {55    if (!isWritableStream(this)) {56      throw new TypeError("Invalid WritableStream.");57    }58    return isWritableStreamLocked(this);59  }60  // eslint-disable-next-line @typescript-eslint/no-explicit-any61  abort(reason: any): Promise<void> {62    if (!isWritableStream(this)) {63      return Promise.reject(new TypeError("Invalid WritableStream."));64    }65    if (isWritableStreamLocked(this)) {66      return Promise.reject(67        new TypeError("Cannot abort a locked WritableStream.")68      );69    }70    return writableStreamAbort(this, reason);71  }72  close(): Promise<void> {73    if (!isWritableStream(this)) {74      return Promise.reject(new TypeError("Invalid WritableStream."));75    }76    if (isWritableStreamLocked(this)) {77      return Promise.reject(78        new TypeError("Cannot abort a locked WritableStream.")79      );80    }81    if (writableStreamCloseQueuedOrInFlight(this)) {82      return Promise.reject(83        new TypeError("Cannot close an already closing WritableStream.")84      );85    }86    return writableStreamClose(this);87  }88  getWriter(): WritableStreamDefaultWriter<W> {89    if (!isWritableStream(this)) {90      throw new TypeError("Invalid WritableStream.");91    }92    return acquireWritableStreamDefaultWriter(this);93  }94  [customInspect](): string {95    return `${this.constructor.name} { locked: ${String(this.locked)} }`;96  }97}...

Using AI Code Generation

1function testWritableStreamLocked() {2  var writable = new WritableStream();3  var writer = writable.getWriter();4  assert_true(IsWritableStreamLocked(writable));5  writer.releaseLock();6  assert_false(IsWritableStreamLocked(writable));7}8testWritableStreamLocked();9function testWritableStreamDisturbed() {10  var writable = new WritableStream();11  var writer = writable.getWriter();12  assert_false(IsWritableStreamDisturbed(writable));13  writer.write('a');14  assert_true(IsWritableStreamDisturbed(writable));15  writer.releaseLock();16  assert_true(IsWritableStreamDisturbed(writable));17}18testWritableStreamDisturbed();19function testWritableStreamErrored() {20  var writable = new WritableStream();21  var writer = writable.getWriter();22  assert_false(IsWritableStreamErrored(writable));23  writer.write('a');24  assert_false(IsWritableStreamErrored(writable));25  writer.releaseLock();26  assert_false(IsWritableStreamErrored(writable));27  writable.abort();28  assert_true(IsWritableStreamErrored(writable));29}30testWritableStreamErrored();31function testWritableStreamClosed() {32  var writable = new WritableStream();33  var writer = writable.getWriter();34  assert_false(IsWritableStreamClosed(writable));35  writer.write('a');36  assert_false(IsWritableStreamClosed(writable));37  writer.releaseLock();38  assert_false(IsWritableStreamClosed(writable));39  writable.close();40  assert_true(IsWritableStreamClosed(writable));41}42testWritableStreamClosed();43function testWritableStreamDefaultController() {44  var writable = new WritableStream();45  var writer = writable.getWriter();46  assert_false(IsWritableStreamDefaultController(writable));47  writer.releaseLock();48  assert_false(IsWritableStreamDefaultController(writable));49  writable.abort();50  assert_false(IsWritableStreamDefaultController(writable));51  writable.close();52  assert_false(IsWritableStreamDefaultController(writable));53}54testWritableStreamDefaultController();55function testWritableStreamDefaultWriter() {

Using AI Code Generation

1var wptools = require('wptools');2var rs = new wptools.ReadableStream({3  start: function(controller) {4    controller.enqueue('a');5    controller.enqueue('b');6    controller.enqueue('c');7    controller.close();8  }9});10var ws = new wptools.WritableStream();11var writer = ws.getWriter();12writer.write('d');13writer.close();14console.log(ws.locked);15console.log(writer.locked);16console.log(wptools.IsWritableStreamLocked(ws));17console.log(wptools.IsWritableStreamLocked(writer));18ws = new wptools.WritableStream();19writer = ws.getWriter();20console.log(ws.locked);21console.log(writer.locked);22console.log(wptools.IsWritableStreamLocked(ws));23console.log(wptools.IsWritableStreamLocked(writer));24wptools.IsWritableStreamLocked(writableStream)25Recommended Posts: JavaScript | IsReadableStreamLocked() Method26JavaScript | IsWritableStreamDefaultWriter() Method27JavaScript | IsWritableStreamDefaultWriterClosed() Method28JavaScript | IsWritableStreamDefaultWriterReady() Method29JavaScript | IsWritableStreamDefaultWriterStarted()

Using AI Code Generation

1const assert = require('assert');2const { WritableStream } = require('stream/web');3const w = new WritableStream();4assert.strictEqual(w.locked, false);5assert.strictEqual(w.writable, true);6assert.strictEqual(w.writableLocked, false);7w.write('a');8w.close();9assert.strictEqual(w.locked, true);10assert.strictEqual(w.writable, false);11assert.strictEqual(w.writableLocked, true);

Using AI Code Generation

1var writableStream = new WritableStream();2var writer = writableStream.getWriter();3var isLocked = writer.isLocked;4assert_equals(isLocked, true, 'isLocked should be true');5writer.releaseLock();6isLocked = writer.isLocked;7assert_equals(isLocked, false, 'isLocked should be false');8writableStream = new WritableStream();9writer = writableStream.getWriter();10isLocked = writer.isLocked;11assert_equals(isLocked, true, 'isLocked should be true');12writableStream.abort();13isLocked = writer.isLocked;14assert_equals(isLocked, false, 'isLocked should be false');15writableStream = new WritableStream();16writer = writableStream.getWriter();17isLocked = writer.isLocked;18assert_equals(isLocked, true, 'isLocked should be true');19writableStream.close();20isLocked = writer.isLocked;21assert_equals(isLocked, false, 'isLocked should be false');22done();

Using AI Code Generation

1function testIsWritableStreamLocked() {2  var writer = writable.getWriter();3  var result = writer.isLocked;4  assert_equals(result, true, 'isLocked should return true');5  writer.releaseLock();6  result = writer.isLocked;7  assert_equals(result, false, 'isLocked should return false');8}9testIsWritableStreamLocked();10function testWritableStreamAbort() {11  var writer = writable.getWriter();12  var result = writer.abort();13  result.then(function() {14    assert_equals(writer.desiredSize, 0, 'desiredSize should return 0');15  });16}17testWritableStreamAbort();18function testWritableStreamClose() {19  var writer = writable.getWriter();20  var result = writer.close();21  result.then(function() {22    assert_equals(writer.desiredSize, 0, 'desiredSize should return 0');23  });24}25testWritableStreamClose();26function testWritableStreamDefaultControllerGetDesiredSize() {27  var writer = writable.getWriter();28  var result = writer.desiredSize;29  assert_equals(result, 1, 'desiredSize should return 1');30}31testWritableStreamDefaultControllerGetDesiredSize();32function testWritableStreamDefaultControllerClose() {33  var writer = writable.getWriter();34  var result = writer.close();35  result.then(function() {36    assert_equals(writer.desiredSize, 0, 'desiredSize should return 0');37  });38}39testWritableStreamDefaultControllerClose();40function testWritableStreamDefaultControllerError() {41  var writer = writable.getWriter();42  var result = writer.abort();43  result.then(function() {44    assert_equals(writer.desiredSize, 0, 'desiredSize should return 0');45  });46}47testWritableStreamDefaultControllerError();48function testWritableStreamDefaultWriterGetDesiredSize() {49  var writer = writable.getWriter();

Using AI Code Generation

1function testIsWritableStreamLocked() {2  var writableStream = new WritableStream();3  var writer = writableStream.getWriter();4  assert_true(writer.isLocked, 'isLocked should be true');5  assert_true(IsWritableStreamLocked(writableStream), 'IsWritableStreamLocked should be true');6  writer.releaseLock();7  assert_false(writer.isLocked, 'isLocked should be false');8  assert_false(IsWritableStreamLocked(writableStream), 'IsWritableStreamLocked should be false');9}10function testIsWritableStreamDisturbed() {11  var writableStream = new WritableStream();12  var writer = writableStream.getWriter();13  assert_false(IsWritableStreamDisturbed(writableStream), 'IsWritableStreamDisturbed should be false');14  writer.write('a');15  assert_true(IsWritableStreamDisturbed(writableStream), 'IsWritableStreamDisturbed should be true');16}17function testIsWritableStreamDefaultWriter() {18  var writableStream = new WritableStream();19  var writer = writableStream.getWriter();20  assert_true(IsWritableStreamDefaultWriter(writer), 'IsWritableStreamDefaultWriter should be true');21  writer.releaseLock();22  assert_false(IsWritableStreamDefaultWriter(writer), 'IsWritableStreamDefaultWriter should be false');23}24function testIsWritableStream() {25  var writableStream = new WritableStream();26  assert_true(IsWritableStream(writableStream), 'IsWritableStream should be true');27}28function testIsTransformStreamDefaultController() {29  var transformStream = new TransformStream();30  var controller = transformStream.controller;31  assert_true(IsTransformStreamDefaultController(controller), 'IsTransformStreamDefaultController should be true');32}33function testIsTransformStream() {34  var transformStream = new TransformStream();35  assert_true(IsTransformStream(transformStream), 'IsTransformStream should be true');36}

Using AI Code Generation

1const assert = require('assert');2const { WritableStream } = require('stream/web');3const ws = new WritableStream();4assert.strictEqual(ws.locked, false);5assert.strictEqual(ws.writableLocked, false);6assert.strictEqual(ws.isWritableStreamLocked(), false);7ws.write('a');8assert.strictEqual(ws.locked, true);9assert.strictEqual(ws.writableLocked, true);10assert.strictEqual(ws.isWritableStreamLocked(), true);11const assert = require('assert');12const { WritableStream } = require('stream/web');13const ws = new WritableStream();14assert.strictEqual(ws.locked, false);15assert.strictEqual(ws.writableLocked, false);16assert.strictEqual(ws.isWritableStreamLocked(), false);17ws.write('a');18assert.strictEqual(ws.locked, true);19assert.strictEqual(ws.writableLocked, true);20assert.strictEqual(ws.isWritableStreamLocked(), true);21ws.close();22assert.strictEqual(ws.locked, true);23assert.strictEqual(ws.writableLocked, true);24assert.strictEqual(ws.isWritableStreamLocked(), true);

Using AI Code Generation

1function testWritableStreamLocked() {2  var ws = new WritableStream({3    write() {}4  });5  assert_false(ws.locked, 'the stream should not be locked');6  ws.locked = true;7  assert_equals(ws.locked, true, 'the stream should be locked');8  assert_equals(ws.locked, IsWritableStreamLocked(ws), 'the result of IsWritableStreamLocked should be same as that of locked property');9}10testWritableStreamLocked();

Using AI Code Generation

1var WritableStream = require('stream').Writable;2var ws = new WritableStream();3var isLocked = ws.locked;4console.log(isLocked);5var WritableStream = require('stream').Writable;6var ws = new WritableStream();7var isLocked = ws.writableLocked;8console.log(isLocked);9var WritableStream = require('stream').Writable;10var ws = new WritableStream();11var isLocked = ws.writable;12console.log(isLocked);13var WritableStream = require('stream').Writable;14var ws = new WritableStream();15var isLocked = ws._writableState;16console.log(isLocked);17var WritableStream = require('stream').Writable;18var ws = new WritableStream();19var isLocked = ws._writableState.needDrain;20console.log(isLocked);21var WritableStream = require('stream').Writable;22var ws = new WritableStream();23var isLocked = ws._writableState.ended;24console.log(isLocked);

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