How to use IsReadableStream method in wpt

Best JavaScript code snippet using wpt

patched-global.any.js

Source:patched-global.any.js

1// META: global=window,worker,jsshell2'use strict';3// Tests which patch the global environment are kept separate to avoid4// interfering with other tests.5const ReadableStream_prototype_locked_get =6      Object.getOwnPropertyDescriptor(ReadableStream.prototype, 'locked').get;7// Verify that |rs| passes the brand check as a readable stream.8function isReadableStream(rs) {9  try {10    ReadableStream_prototype_locked_get.call(rs);11    return true;12  } catch (e) {13    return false;14  }15}16test(t => {17  const rs = new ReadableStream();18  const trappedProperties = ['highWaterMark', 'size', 'start', 'type', 'mode'];19  for (const property of trappedProperties) {20    // eslint-disable-next-line no-extend-native, accessor-pairs21    Object.defineProperty(Object.prototype, property, {22      get() { throw new Error(`${property} getter called`); },23      configurable: true24    });25  }26  t.add_cleanup(() => {27    for (const property of trappedProperties) {28      delete Object.prototype[property];29    }30  });31  const [branch1, branch2] = rs.tee();32  assert_true(isReadableStream(branch1), 'branch1 should be a ReadableStream');33  assert_true(isReadableStream(branch2), 'branch2 should be a ReadableStream');34}, 'ReadableStream tee() should not touch Object.prototype properties');35test(t => {36  const rs = new ReadableStream();37  const oldReadableStream = self.ReadableStream;38  self.ReadableStream = function() {39    throw new Error('ReadableStream called on global object');40  };41  t.add_cleanup(() => {42    self.ReadableStream = oldReadableStream;43  });44  const [branch1, branch2] = rs.tee();45  assert_true(isReadableStream(branch1), 'branch1 should be a ReadableStream');46  assert_true(isReadableStream(branch2), 'branch2 should be a ReadableStream');47}, 'ReadableStream tee() should not call the global ReadableStream');48promise_test(async t => {49  const rs = new ReadableStream({50    start(c) {51      c.enqueue(1);52      c.enqueue(2);53      c.enqueue(3);54      c.close();55    }56  });57  const oldReadableStreamGetReader = ReadableStream.prototype.getReader;58  const ReadableStreamDefaultReader = (new ReadableStream()).getReader().constructor;59  const oldDefaultReaderRead = ReadableStreamDefaultReader.prototype.read;60  const oldDefaultReaderCancel = ReadableStreamDefaultReader.prototype.cancel;61  const oldDefaultReaderReleaseLock = ReadableStreamDefaultReader.prototype.releaseLock;62  self.ReadableStream.prototype.getReader = function() {63    throw new Error('patched getReader() called');64  };65  ReadableStreamDefaultReader.prototype.read = function() {66    throw new Error('patched read() called');67  };68  ReadableStreamDefaultReader.prototype.cancel = function() {69    throw new Error('patched cancel() called');70  };71  ReadableStreamDefaultReader.prototype.releaseLock = function() {72    throw new Error('patched releaseLock() called');73  };74  t.add_cleanup(() => {75    self.ReadableStream.prototype.getReader = oldReadableStreamGetReader;76    ReadableStreamDefaultReader.prototype.read = oldDefaultReaderRead;77    ReadableStreamDefaultReader.prototype.cancel = oldDefaultReaderCancel;78    ReadableStreamDefaultReader.prototype.releaseLock = oldDefaultReaderReleaseLock;79  });80  // read the first chunk, then cancel81  for await (const chunk of rs) {82    break;83  }84  // should be able to acquire a new reader85  const reader = oldReadableStreamGetReader.call(rs);86  // stream should be cancelled87  await reader.closed;88}, 'ReadableStream async iterator should use the original values of getReader() and ReadableStreamDefaultReader ' +89   'methods');90test(t => {91  const oldPromiseThen = Promise.prototype.then;92  Promise.prototype.then = () => {93    throw new Error('patched then() called');94  };95  t.add_cleanup(() => {96    Promise.prototype.then = oldPromiseThen;97  });98  const [branch1, branch2] = new ReadableStream().tee();99  assert_true(isReadableStream(branch1), 'branch1 should be a ReadableStream');100  assert_true(isReadableStream(branch2), 'branch2 should be a ReadableStream');101}, 'tee() should not call Promise.prototype.then()');102test(t => {103  const oldPromiseThen = Promise.prototype.then;104  Promise.prototype.then = () => {105    throw new Error('patched then() called');106  };107  t.add_cleanup(() => {108    Promise.prototype.then = oldPromiseThen;109  });110  let readableController;111  const rs = new ReadableStream({112    start(c) {113      readableController = c;114    }115  });116  const ws = new WritableStream();117  rs.pipeTo(ws);118  readableController.close();...

patched-global.js

Source:patched-global.js

1'use strict';2// Tests which patch the global environment are kept separate to avoid3// interfering with other tests.4if (self.importScripts) {5  self.importScripts('/resources/testharness.js');6}7const ReadableStream_prototype_locked_get =8      Object.getOwnPropertyDescriptor(ReadableStream.prototype, 'locked').get;9// Verify that |rs| passes the brand check as a readable stream.10function isReadableStream(rs) {11  try {12    ReadableStream_prototype_locked_get.call(rs);13    return true;14  } catch (e) {15    return false;16  }17}18test(t => {19  const rs = new ReadableStream();20  const trappedProperties = ['highWaterMark', 'size', 'start', 'type', 'mode'];21  for (const property of trappedProperties) {22    // eslint-disable-next-line no-extend-native, accessor-pairs23    Object.defineProperty(Object.prototype, property, {24      get() { throw new Error(`${property} getter called`); },25      configurable: true26    });27  }28  t.add_cleanup(() => {29    for (const property of trappedProperties) {30      delete Object.prototype[property];31    }32  });33  const [branch1, branch2] = rs.tee();34  assert_true(isReadableStream(branch1), 'branch1 should be a ReadableStream');35  assert_true(isReadableStream(branch2), 'branch2 should be a ReadableStream');36}, 'ReadableStream tee() should not touch Object.prototype properties');37test(t => {38  const rs = new ReadableStream();39  const oldReadableStream = self.ReadableStream;40  /* eslint-disable no-native-reassign */41  self.ReadableStream = function() {42    throw new Error('ReadableStream called on global object');43  };44  t.add_cleanup(() => {45    self.ReadableStream = oldReadableStream;46  });47  const [branch1, branch2] = rs.tee();48  assert_true(isReadableStream(branch1), 'branch1 should be a ReadableStream');49  assert_true(isReadableStream(branch2), 'branch2 should be a ReadableStream');50  /* eslint-enable no-native-reassign */51}, 'ReadableStream tee() should not call the global ReadableStream');...

isReadableStream.spec.js

Source:isReadableStream.spec.js

1const fs = require("fs");2const {isReadableStream} = require("helpers");3describe("Helpers", () => {4	describe("isReadableStream", () => {5		it("returns false for strings", () => {6			expect(isReadableStream("test")).toEqual(false);7		});8		it("returns false for plain objects", () => {9			expect(isReadableStream({foo: "bar"})).toEqual(false);10		});11		it("returns true for readable streams", () => {12			const s = fs.createReadStream(__filename);13			expect(isReadableStream(s)).toEqual(true);14		});15	});...

Using AI Code Generation

1const { IsReadableStream } = require('wpt-streams');2const rs = new ReadableStream({3  start(controller) {4    controller.enqueue('a');5    controller.enqueue('b');6    controller.enqueue('c');7    controller.close();8  }9});10### `IsReadableStream(stream)`11### `IsWritableStream(stream)`12### `IsTransformStream(stream)`13### `IsByteStreamController(controller)`14### `IsReadableByteStreamController(controller)`15### `IsWritableStreamDefaultController(controller)`16### `IsWritableStreamDefaultWriter(writer)`17### `IsReadableStreamDefaultController(controller)`18### `IsReadableStreamDefaultReader(reader)`19### `IsReadableStreamBYOBReader(reader)`20### `IsReadableStreamBYOBRequest(request)`21### `IsTransformStreamDefaultController(controller)`22### `IsReadableStreamLocked(stream)`23### `IsWritableStreamLocked(stream)`24### `IsReadableStreamDisturbed(stream)`

Using AI Code Generation

1const { IsReadableStream } = require("wpt-streams");2const { ReadableStream } = require("stream/web");3const rs = new ReadableStream({4  start(controller) {5    controller.enqueue("a");6    controller.enqueue("b");7    controller.enqueue("c");8    controller.close();9  },10});11console.log(IsReadableStream(rs));12### IsWritableStream ( stream )13const { IsWritableStream } = require("wpt-streams");14const { WritableStream } = require("stream/web");15const ws = new WritableStream({16  write(chunk) {17    console.log(chunk);18  },19});20console.log(IsWritableStream(ws));21### IsTransformStream ( stream )22const { IsTransformStream } = require("wpt-streams");23const { TransformStream } = require("stream/web");24const ts = new TransformStream();25console.log(IsTransformStream(ts));26### IsByteStream ( stream )27const { IsByteStream } = require("wpt-streams");28const { ByteStream } = require("wpt-streams");29const bs = new ByteStream();30console.log(IsByteStream(bs));31### IsReadableByteStream ( stream )32const { IsReadableByteStream } = require("wpt-streams");33const { ReadableByteStream } = require("wpt-streams");34const rbs = new ReadableByteStream();35console.log(IsReadableByteStream(rbs));

Using AI Code Generation

1var wpt = require('wpt-streams');2var rs = new wpt.ReadableStream({3  start: function(controller) {4    controller.enqueue('a');5    controller.enqueue('b');6    controller.close();7  }8});9console.log(wpt.IsReadableStream(rs));10#### new ReadableStream([options])11* `options` {Object}12#### readableStream.cancel(reason)

Using AI Code Generation

1var wpt = require('wpt');2var wpt = require('wpt');3  console.log(data);4});5var wpt = require('wpt');6  if (err) {7    console.log(err);8  }9  else {10    console.log(data);11  }12});13var wpt = require('wpt');14  if (err) {15    console.log(err);16  }17  else {18    if (data) {19      console.log('The stream is readable');20    }21    else {22      console.log('The stream is not readable');23    }24  }25});26var wpt = require('wpt');27  if (err) {28    console.log(err);29  }30  else {31    if (data) {32      console.log('The stream is readable');33    }34    else {35      console.log('The stream is not readable');36    }37  }38});39var wpt = require('wpt');40  if (err) {41    console.log(err);42  }43  else {44    if (data) {45      console.log('The stream is readable');46    }47    else {48      console.log('The stream is not readable');49    }50  }51});52var wpt = require('wpt');53  if (err) {54    console.log(err

Using AI Code Generation

1const assert = require('assert');2const { IsReadableStream } = require('./dist/web-streams-polyfill.js');3assert(IsReadableStream(new ReadableStream()) === true);4assert(IsReadableStream(new ReadableStream({ start() {} })) === true);5assert(IsReadableStream(new ReadableStream({ start() { throw new Error('error'); } })) === true);6assert(IsReadableStream(new ReadableStream({ start() { return new Promise(() => {}); } })) === true);7assert(IsReadableStream(new ReadableStream({ start() { return new Promise((resolve, reject) => { reject(); }); } })) === true);8assert(IsReadableStream(new ReadableStream({ start() { return new Promise((resolve, reject) => { reject(new Error('error')); }); } })) === true);9assert(IsReadableStream(new ReadableStream({ start() { return new Promise((resolve, reject) => { resolve(); }); } })) === true);10assert(IsReadableStream(new WritableStream()) === false);11assert(IsReadableStream(new TransformStream().readable) === true);12assert(IsReadableStream(new TransformStream().writable) === false);13assert(IsReadableStream(new ReadableStream().pipeThrough(new TransformStream())) === true);14assert(IsReadableStream(new ReadableStream().pipeThrough(new TransformStream()).pipeThrough(new TransformStream())) === true);15assert(IsReadableStream(new ReadableStream().pipeThrough(new TransformStream()).pipeThrough(new TransformStream()).pipeThrough(new TransformStream())) === true);16assert(IsReadableStream(new ReadableStream().pipeThrough(new TransformStream()).pipeThrough(new TransformStream()).pipeThrough(new TransformStream()).pipeTo(new WritableStream())) === false);17assert(IsReadableStream(new ReadableStream().pipeTo(new WritableStream())) === false);18assert(IsReadableStream(new ReadableStream().pipeTo(new WritableStream()).pipeTo(new WritableStream())) === false);19assert(IsReadableStream(new ReadableStream().pipeTo(new WritableStream()).pipeTo(new WritableStream()).pipeTo(new WritableStream())) === false);20assert(IsReadableStream(new ReadableStream().pipeTo(new WritableStream()).pipeTo(new WritableStream()).pipeTo(new WritableStream()).pipeTo(new WritableStream())) === false);

Using AI Code Generation

1var wpt = require('webpagetest');2var api = new wpt('API_KEY');3var options = {4};5    if (err) return console.error(err);6    api.getTestResults(data.data.testId, function(err, data) {7        if (err) return console.error(err);8        console.log('IsReadableStream: ' + data.data.median.firstView.IsReadableStream);9    });10});11### WebPageTest(host, port, apiKey, useSSL, testPath)12### WebPageTest#runTest(url, options, callback)13### WebPageTest#getTestResults(testId, callback)14### WebPageTest#getLocations(callback)15### WebPageTest#getLocations(callback)16### WebPageTest#getStatus(callback)17### WebPageTest#getHAR(testId, callback)18### WebPageTest#getPageSpeedResults(testId, callback)19### WebPageTest#getTesters(callback)20### WebPageTest#sendTestCommand(testId, command, callback)21### WebPageTest#sendTestMessage(testId, message, callback)22### WebPageTest#getTesters(callback)

Using AI Code Generation

1const wptools = require('wptools');2let stream = wptools.page('Barack Obama').get().then(function(page) {3    return page.images();4}).then(function(stream) {5    console.log(wptools.IsReadableStream(stream));6});7### IsWritableStream(stream)8const wptools = require('wptools');9let stream = wptools.page('Barack Obama').get().then(function(page) {10    return page.images();11}).then(function(stream) {12    console.log(wptools.IsWritableStream(stream));13});14### IsStream(stream)15const wptools = require('wptools');16let stream = wptools.page('Barack Obama').get().then(function(page) {17    return page.images();18}).then(function(stream) {19    console.log(wptools.IsStream(stream));20});21MIT © [Rishabh Jain](

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