How to use IsTransformStream method in wpt

Best JavaScript code snippet using wpt

stream.test.ts

Source:stream.test.ts

1import { Duplex, Readable, Stream, Transform, Writable } from 'readable-stream'2import {3    delay,4    invertedStreams,5    isDuplexStream,6    isOpenDuplexStream,7    isOpenReadableStream,8    isOpenStream,9    isOpenTransformStream,10    isOpenWritableStream,11    isReadableStream,12    isStream,13    isTransformStream,14    isWritableStream,15    noop,16} from '.'17const read = (): void => undefined18const write = (19    _data: any,20    _encoding: string,21    callback: (error: Error | null) => void,22): void => callback(null)23const transform = (24    _data: any,25    _encoding: string,26    callback: (error: Error | undefined) => void,27): void => callback(undefined)28const invalidStream = new Stream()29const openReadableStream = new Readable({ read }).on('data', noop)30const endedReadableStream = new Readable({ read }).on('data', noop)31endedReadableStream.push(null)32const destroyedReadableStream = new Readable({ read }).on('data', noop)33destroyedReadableStream.destroy()34const openWritableStream = new Writable({ write })35const finishedWritableStream = new Writable({ write })36finishedWritableStream.end()37const destroyedWritableStream = new Writable({ write })38destroyedWritableStream.destroy()39const openDuplexStream = new Duplex({ read, write }).on('data', noop)40const endedDuplexStream = new Duplex({ read, write }).on('data', noop)41endedDuplexStream.push(null)42const finishedDuplexStream = new Duplex({ read, write }).on('data', noop)43finishedDuplexStream.end()44const destroyedDuplexStream = new Duplex({ read, write }).on('data', noop)45destroyedDuplexStream.destroy()46const openTransformStream = new Transform({ transform }).on('data', noop)47const endedTransformStream = new Transform({ transform }).on('data', noop)48endedTransformStream.push(null)49const finishedTransformStream = new Transform({ transform }).on('data', noop)50finishedTransformStream.end()51const destroyedTransformStream = new Transform({ transform }).on('data', noop)52destroyedTransformStream.destroy()53const functions: { [key: string]: (stream: any) => boolean } = {54    isDuplexStream,55    isOpenDuplexStream,56    isOpenReadableStream,57    isOpenStream,58    isOpenTransformStream,59    isOpenWritableStream,60    isReadableStream,61    isStream,62    isTransformStream,63    isWritableStream,64}65const streams: { [key: string]: any } = {66    destroyedDuplexStream,67    destroyedReadableStream,68    destroyedTransformStream,69    destroyedWritableStream,70    endedDuplexStream,71    endedReadableStream,72    endedTransformStream,73    finishedDuplexStream,74    finishedTransformStream,75    finishedWritableStream,76    function: () => undefined,77    invalidStream,78    null: null,79    openDuplexStream,80    openReadableStream,81    openTransformStream,82    openWritableStream,83    undefined,84}85beforeAll(async () => {86    // Introduce a delay, so that the stream's readable state could be updated.87    await new Promise((resolve) => setTimeout(resolve, 0))88})89test.each<[string, string, boolean]>([90    ['isDuplexStream', 'destroyedDuplexStream', true],91    ['isDuplexStream', 'destroyedReadableStream', false],92    ['isDuplexStream', 'destroyedTransformStream', true],93    ['isDuplexStream', 'destroyedWritableStream', false],94    ['isDuplexStream', 'endedDuplexStream', true],95    ['isDuplexStream', 'endedReadableStream', false],96    ['isDuplexStream', 'endedTransformStream', true],97    ['isDuplexStream', 'finishedDuplexStream', true],98    ['isDuplexStream', 'finishedTransformStream', true],99    ['isDuplexStream', 'finishedWritableStream', false],100    ['isDuplexStream', 'invalidStream', false],101    ['isDuplexStream', 'openDuplexStream', true],102    ['isDuplexStream', 'openReadableStream', false],103    ['isDuplexStream', 'openTransformStream', true],104    ['isDuplexStream', 'openWritableStream', false],105    ['isDuplexStream', 'null', false],106    ['isDuplexStream', 'undefined', false],107    ['isDuplexStream', 'function', false],108    ['isOpenDuplexStream', 'destroyedDuplexStream', false],109    ['isOpenDuplexStream', 'destroyedReadableStream', false],110    ['isOpenDuplexStream', 'destroyedTransformStream', false],111    ['isOpenDuplexStream', 'destroyedWritableStream', false],112    ['isOpenDuplexStream', 'endedDuplexStream', false],113    ['isOpenDuplexStream', 'endedReadableStream', false],114    ['isOpenDuplexStream', 'endedTransformStream', false],115    ['isOpenDuplexStream', 'finishedDuplexStream', false],116    ['isOpenDuplexStream', 'finishedTransformStream', false],117    ['isOpenDuplexStream', 'finishedWritableStream', false],118    ['isOpenDuplexStream', 'invalidStream', false],119    ['isOpenDuplexStream', 'openDuplexStream', true],120    ['isOpenDuplexStream', 'openReadableStream', false],121    ['isOpenDuplexStream', 'openTransformStream', true],122    ['isOpenDuplexStream', 'openWritableStream', false],123    ['isOpenDuplexStream', 'null', false],124    ['isOpenDuplexStream', 'undefined', false],125    ['isOpenDuplexStream', 'function', false],126    ['isOpenReadableStream', 'destroyedDuplexStream', false],127    ['isOpenReadableStream', 'destroyedReadableStream', false],128    ['isOpenReadableStream', 'destroyedTransformStream', false],129    ['isOpenReadableStream', 'destroyedWritableStream', false],130    ['isOpenReadableStream', 'endedDuplexStream', false],131    ['isOpenReadableStream', 'endedReadableStream', false],132    ['isOpenReadableStream', 'endedTransformStream', false],133    ['isOpenReadableStream', 'finishedDuplexStream', true],134    ['isOpenReadableStream', 'finishedTransformStream', false], // ended automatically on `end()`135    ['isOpenReadableStream', 'finishedWritableStream', false],136    ['isOpenReadableStream', 'invalidStream', false],137    ['isOpenReadableStream', 'openDuplexStream', true],138    ['isOpenReadableStream', 'openReadableStream', true],139    ['isOpenReadableStream', 'openTransformStream', true],140    ['isOpenReadableStream', 'openWritableStream', false],141    ['isOpenReadableStream', 'null', false],142    ['isOpenReadableStream', 'undefined', false],143    ['isOpenReadableStream', 'function', false],144    ['isOpenStream', 'destroyedDuplexStream', false],145    ['isOpenStream', 'destroyedReadableStream', false],146    ['isOpenStream', 'destroyedTransformStream', false],147    ['isOpenStream', 'destroyedWritableStream', false],148    ['isOpenStream', 'endedDuplexStream', true],149    ['isOpenStream', 'endedReadableStream', true],150    ['isOpenStream', 'endedTransformStream', true],151    ['isOpenStream', 'finishedDuplexStream', true],152    ['isOpenStream', 'finishedTransformStream', true],153    ['isOpenStream', 'finishedWritableStream', true],154    ['isOpenStream', 'invalidStream', false],155    ['isOpenStream', 'openDuplexStream', true],156    ['isOpenStream', 'openReadableStream', true],157    ['isOpenStream', 'openTransformStream', true],158    ['isOpenStream', 'openWritableStream', true],159    ['isOpenStream', 'null', false],160    ['isOpenStream', 'undefined', false],161    ['isOpenStream', 'function', false],162    ['isOpenTransformStream', 'destroyedDuplexStream', false],163    ['isOpenTransformStream', 'destroyedReadableStream', false],164    ['isOpenTransformStream', 'destroyedTransformStream', false],165    ['isOpenTransformStream', 'destroyedWritableStream', false],166    ['isOpenTransformStream', 'endedDuplexStream', false],167    ['isOpenTransformStream', 'endedReadableStream', false],168    ['isOpenTransformStream', 'endedTransformStream', false],169    ['isOpenTransformStream', 'finishedDuplexStream', false],170    ['isOpenTransformStream', 'finishedTransformStream', false],171    ['isOpenTransformStream', 'finishedWritableStream', false],172    ['isOpenTransformStream', 'invalidStream', false],173    ['isOpenTransformStream', 'openDuplexStream', false],174    ['isOpenTransformStream', 'openReadableStream', false],175    ['isOpenTransformStream', 'openTransformStream', true],176    ['isOpenTransformStream', 'openWritableStream', false],177    ['isOpenTransformStream', 'null', false],178    ['isOpenTransformStream', 'undefined', false],179    ['isOpenTransformStream', 'function', false],180    ['isOpenWritableStream', 'destroyedDuplexStream', false],181    ['isOpenWritableStream', 'destroyedReadableStream', false],182    ['isOpenWritableStream', 'destroyedTransformStream', false],183    ['isOpenWritableStream', 'destroyedWritableStream', false],184    ['isOpenWritableStream', 'endedDuplexStream', true],185    ['isOpenWritableStream', 'endedReadableStream', false],186    ['isOpenWritableStream', 'endedTransformStream', true],187    ['isOpenWritableStream', 'finishedDuplexStream', false],188    ['isOpenWritableStream', 'finishedTransformStream', false],189    ['isOpenWritableStream', 'finishedWritableStream', false],190    ['isOpenWritableStream', 'invalidStream', false],191    ['isOpenWritableStream', 'openDuplexStream', true],192    ['isOpenWritableStream', 'openReadableStream', false],193    ['isOpenWritableStream', 'openTransformStream', true],194    ['isOpenWritableStream', 'openWritableStream', true],195    ['isOpenWritableStream', 'null', false],196    ['isOpenWritableStream', 'undefined', false],197    ['isOpenWritableStream', 'function', false],198    ['isReadableStream', 'destroyedDuplexStream', true],199    ['isReadableStream', 'destroyedReadableStream', true],200    ['isReadableStream', 'destroyedTransformStream', true],201    ['isReadableStream', 'destroyedWritableStream', false],202    ['isReadableStream', 'endedDuplexStream', true],203    ['isReadableStream', 'endedReadableStream', true],204    ['isReadableStream', 'endedTransformStream', true],205    ['isReadableStream', 'finishedDuplexStream', true],206    ['isReadableStream', 'finishedTransformStream', true],207    ['isReadableStream', 'finishedWritableStream', false],208    ['isReadableStream', 'invalidStream', false],209    ['isReadableStream', 'openDuplexStream', true],210    ['isReadableStream', 'openReadableStream', true],211    ['isReadableStream', 'openTransformStream', true],212    ['isReadableStream', 'openWritableStream', false],213    ['isReadableStream', 'null', false],214    ['isReadableStream', 'undefined', false],215    ['isReadableStream', 'function', false],216    ['isStream', 'destroyedDuplexStream', true],217    ['isStream', 'destroyedReadableStream', true],218    ['isStream', 'destroyedTransformStream', true],219    ['isStream', 'destroyedWritableStream', true],220    ['isStream', 'endedDuplexStream', true],221    ['isStream', 'endedReadableStream', true],222    ['isStream', 'endedTransformStream', true],223    ['isStream', 'finishedDuplexStream', true],224    ['isStream', 'finishedTransformStream', true],225    ['isStream', 'finishedWritableStream', true],226    ['isStream', 'invalidStream', false],227    ['isStream', 'openDuplexStream', true],228    ['isStream', 'openReadableStream', true],229    ['isStream', 'openTransformStream', true],230    ['isStream', 'openWritableStream', true],231    ['isStream', 'null', false],232    ['isStream', 'undefined', false],233    ['isStream', 'function', false],234    ['isTransformStream', 'destroyedDuplexStream', false],235    ['isTransformStream', 'destroyedReadableStream', false],236    ['isTransformStream', 'destroyedTransformStream', true],237    ['isTransformStream', 'destroyedWritableStream', false],238    ['isTransformStream', 'endedDuplexStream', false],239    ['isTransformStream', 'endedReadableStream', false],240    ['isTransformStream', 'endedTransformStream', true],241    ['isTransformStream', 'finishedDuplexStream', false],242    ['isTransformStream', 'finishedTransformStream', true],243    ['isTransformStream', 'finishedWritableStream', false],244    ['isTransformStream', 'invalidStream', false],245    ['isTransformStream', 'openDuplexStream', false],246    ['isTransformStream', 'openReadableStream', false],247    ['isTransformStream', 'openTransformStream', true],248    ['isTransformStream', 'openWritableStream', false],249    ['isTransformStream', 'null', false],250    ['isTransformStream', 'undefined', false],251    ['isTransformStream', 'function', false],252    ['isWritableStream', 'destroyedDuplexStream', true],253    ['isWritableStream', 'destroyedReadableStream', false],254    ['isWritableStream', 'destroyedTransformStream', true],255    ['isWritableStream', 'destroyedWritableStream', true],256    ['isWritableStream', 'endedDuplexStream', true],257    ['isWritableStream', 'endedReadableStream', false],258    ['isWritableStream', 'endedTransformStream', true],259    ['isWritableStream', 'finishedDuplexStream', true],260    ['isWritableStream', 'finishedTransformStream', true],261    ['isWritableStream', 'finishedWritableStream', true],262    ['isWritableStream', 'invalidStream', false],263    ['isWritableStream', 'openDuplexStream', true],264    ['isWritableStream', 'openReadableStream', false],265    ['isWritableStream', 'openTransformStream', true],266    ['isWritableStream', 'openWritableStream', true],267    ['isWritableStream', 'null', false],268    ['isWritableStream', 'undefined', false],269    ['isWritableStream', 'function', false],270])('%s(%s) === %s', (predicate, stream, result) => {271    expect(functions[predicate](streams[stream])).toBe(result)272})273describe('invertedStreams', () => {274    const error = new Error('test')275    describe('objectMode=false', () => {276        test.each([277            // Test both streams in the same way.278            invertedStreams(),279            invertedStreams().reverse(),280        ])('read and write some data (%#)', async (a, b) => {281            const data = Array.from(Array(10), (_, x) => x.toString())282            const bufferData = data.map((d) => Buffer.from(d))283            const dataA = jest.fn()284            const dataB = jest.fn()285            const endA = jest.fn()286            const endB = jest.fn()287            a.on('data', dataA)288            b.on('data', dataB)289            a.on('end', endA)290            b.on('end', endB)291            a.write(data[0])292            a.write(data[1])293            a.write(data[2])294            b.write(data[3])295            b.write(data[4])296            b.write(data[5])297            a.write(data[6])298            a.write(data[7])299            a.write(data[8])300            a.end()301            b.write(data[9])302            b.end()303            await delay()304            expect(dataA).toHaveBeenCalledTimes(4)305            expect(dataA).toHaveBeenCalledWith(bufferData[3])306            expect(dataA).toHaveBeenCalledWith(bufferData[4])307            expect(dataA).toHaveBeenCalledWith(bufferData[5])308            expect(dataA).toHaveBeenCalledWith(bufferData[9])309            expect(dataB).toHaveBeenCalledTimes(6)310            expect(dataB).toHaveBeenCalledWith(bufferData[0])311            expect(dataB).toHaveBeenCalledWith(bufferData[1])312            expect(dataB).toHaveBeenCalledWith(bufferData[2])313            expect(dataB).toHaveBeenCalledWith(bufferData[6])314            expect(dataB).toHaveBeenCalledWith(bufferData[7])315            expect(dataB).toHaveBeenCalledWith(bufferData[8])316            expect(endA).toHaveBeenCalledTimes(1)317            expect(endB).toHaveBeenCalledTimes(1)318        })319    })320    describe('objectMode=true', () => {321        test.each([322            // Test both streams in the same way.323            invertedStreams({ objectMode: true }),324            invertedStreams({ objectMode: true }).reverse(),325        ])('read and write some data (%#)', async (a, b) => {326            const data = Array.from(Array(10), (_, x) => ({ data: x }))327            const dataA = jest.fn()328            const dataB = jest.fn()329            const endA = jest.fn()330            const endB = jest.fn()331            a.on('data', dataA)332            b.on('data', dataB)333            a.on('end', endA)334            b.on('end', endB)335            a.write(data[0])336            a.write(data[1])337            a.write(data[2])338            b.write(data[3])339            b.write(data[4])340            b.write(data[5])341            a.write(data[6])342            a.write(data[7])343            a.write(data[8])344            a.end()345            b.write(data[9])346            b.end()347            await delay()348            expect(dataA).toHaveBeenCalledTimes(4)349            expect(dataA).toHaveBeenCalledWith(data[3])350            expect(dataA).toHaveBeenCalledWith(data[4])351            expect(dataA).toHaveBeenCalledWith(data[5])352            expect(dataA).toHaveBeenCalledWith(data[9])353            expect(dataB).toHaveBeenCalledTimes(6)354            expect(dataB).toHaveBeenCalledWith(data[0])355            expect(dataB).toHaveBeenCalledWith(data[1])356            expect(dataB).toHaveBeenCalledWith(data[2])357            expect(dataB).toHaveBeenCalledWith(data[6])358            expect(dataB).toHaveBeenCalledWith(data[7])359            expect(dataB).toHaveBeenCalledWith(data[8])360            expect(endA).toHaveBeenCalledTimes(1)361            expect(endB).toHaveBeenCalledTimes(1)362        })363    })364    describe('allowHalfOpen=false', () => {365        test.each([366            // Test both streams in the same way.367            invertedStreams({ allowHalfOpen: false, objectMode: true }),368            invertedStreams({369                allowHalfOpen: false,370                objectMode: true,371            }).reverse(),372        ])('both streams end (%#)', async (a, b) => {373            const onEndA = jest.fn()374            const onEndB = jest.fn()375            a.on('end', onEndA)376            b.on('end', onEndB)377            a.resume()378            b.resume()379            a.end()380            await delay()381            expect(onEndA).toHaveBeenCalledTimes(1)382            expect(onEndB).toHaveBeenCalledTimes(1)383        })384    })385    describe('allowHalfOpen=true', () => {386        test.each([387            // Test both streams in the same way.388            invertedStreams({ objectMode: true }),389            invertedStreams({ objectMode: true }).reverse(),390        ])('end one stream and write to the other (%#)', async (a, b) => {391            const onDataA = jest.fn()392            const onEndA = jest.fn()393            const onDataB = jest.fn()394            const onEndB = jest.fn()395            a.on('data', onDataA)396            a.on('end', onEndA)397            b.on('data', onDataB)398            b.on('end', onEndB)399            a.end()400            await delay()401            expect(onDataA).toHaveBeenCalledTimes(0)402            expect(onEndA).toHaveBeenCalledTimes(0)403            expect(onDataB).toHaveBeenCalledTimes(0)404            expect(onEndB).toHaveBeenCalledTimes(1)405            b.write('5')406            b.end()407            await delay()408            expect(onDataA).toHaveBeenCalledTimes(1)409            expect(onDataA).toHaveBeenCalledWith('5')410            expect(onEndA).toHaveBeenCalledTimes(1)411            expect(onDataB).toHaveBeenCalledTimes(0)412            expect(onEndB).toHaveBeenCalledTimes(1)413        })414    })415    describe('destroy', () => {416        test.each([417            // Test both streams in the same way.418            invertedStreams(),419            invertedStreams().reverse(),420        ])('no error', async (a, b) => {421            const onCloseA = jest.fn()422            const onCloseB = jest.fn()423            a.on('close', onCloseA)424            b.on('close', onCloseB)425            b.destroy()426            await delay()427            expect(onCloseA).toHaveBeenCalledTimes(1)428            expect(onCloseB).toHaveBeenCalledTimes(1)429        })430        test.each([431            // Test both streams in the same way.432            invertedStreams(),433            invertedStreams().reverse(),434        ])('with error', async (a, b) => {435            const onErrorA = jest.fn()436            const onCloseA = jest.fn()437            const onErrorB = jest.fn()438            const onCloseB = jest.fn()439            a.on('error', onErrorA)440            a.on('close', onCloseA)441            b.on('error', onErrorB)442            b.on('close', onCloseB)443            b.destroy(error)444            await delay()445            expect(onErrorA).toHaveBeenCalledTimes(0)446            expect(onCloseA).toHaveBeenCalledTimes(1)447            expect(onErrorB).toHaveBeenCalledTimes(1)448            expect(onErrorB).toHaveBeenCalledWith(error)449            expect(onCloseB).toHaveBeenCalledTimes(1)450        })451    })...

stream.spec.ts

Source:stream.spec.ts

1import { IncomingMessage, ServerResponse } from 'node:http';2import { Duplex, Readable, Transform, Writable } from 'node:stream';3import { describe, expect, it } from 'vitest';4import {5  isDuplexStream,6  isReadableStream,7  isStream,8  isTransformStream,9  isWritableStream,10  toStream11} from '../stream';12describe('isStream()', () => {13  it('returns true for readable stream', () => {14    const stream = new Readable();15    expect(isStream(stream)).toBeTruthy();16  });17  it('returns false for no streams', () => {18    const noStream = {};19    expect(isStream(noStream)).toBeFalsy();20  });21  it('works for ServerResponse', () => {22    expect(isStream(new ServerResponse({} as IncomingMessage))).toBeTruthy();23  });24});25describe('toStream()', () => {26  it('convert an obj to stream', () => {27    expect(isStream(toStream({}))).toBeTruthy();28  });29});30describe('isWritableStream()', () => {31  it('returns true for writable streams', () => {32    const stream = new Writable();33    expect(isWritableStream(stream)).toBeTruthy();34  });35  it('returns false for readable streams', () => {36    const stream = new Readable();37    expect(isWritableStream(stream)).toBeFalsy();38  });39  it('returns false for no streams', () => {40    const noStream = {};41    expect(isWritableStream(noStream)).toBeFalsy();42  });43});44describe('isReadableStream()', () => {45  it('returns true for readable streams', () => {46    const stream = new Readable();47    expect(isReadableStream(stream)).toBeTruthy();48  });49  it('returns false writable streams', () => {50    const stream = new Writable();51    expect(isReadableStream(stream)).toBeFalsy();52  });53  it('returns false for no streams', () => {54    const noStream = {};55    expect(isReadableStream(noStream)).toBeFalsy();56  });57});58describe('isDuplexStream()', () => {59  it('returns true for duplex streams', () => {60    const stream = new Duplex();61    expect(isDuplexStream(stream)).toBeTruthy();62  });63  it('returns false for no streams', () => {64    const stream = {};65    expect(isDuplexStream(stream)).toBeFalsy();66  });67  it('returns false for readable streams', () => {68    const noStream = new Readable();69    expect(isDuplexStream(noStream)).toBeFalsy();70  });71  it('returns false for writable streams', () => {72    const noStream = new Writable();73    expect(isDuplexStream(noStream)).toBeFalsy();74  });75});76describe('isTransformStream()', () => {77  it('returns true for transform streams', () => {78    const stream = new Transform();79    expect(isTransformStream(stream)).toBeTruthy();80  });81  it('returns false for duplex streams', () => {82    const stream = new Duplex();83    expect(isTransformStream(stream)).toBeFalsy();84  });85  it('returns false for no streams', () => {86    const stream = {};87    expect(isTransformStream(stream)).toBeFalsy();88  });89  it('returns false for readable streams', () => {90    const noStream = new Readable();91    expect(isTransformStream(noStream)).toBeFalsy();92  });93  it('returns false for writable streams', () => {94    const noStream = new Writable();95    expect(isDuplexStream(noStream)).toBeFalsy();96  });...

test.js

Source:test.js

1import fs from 'node:fs';2import Stream from 'node:stream';3import net from 'node:net';4import test from 'ava';5import tempy from 'tempy';6import {7	isStream,8	isWritableStream,9	isReadableStream,10	isDuplexStream,11	isTransformStream,12} from './index.js';13test('isStream()', t => {14	t.true(isStream(new Stream.Stream()));15	t.true(isStream(new Stream.Readable()));16	t.true(isStream(new Stream.Writable()));17	t.true(isStream(new Stream.Duplex()));18	t.true(isStream(new Stream.Transform()));19	t.true(isStream(new Stream.PassThrough()));20	t.true(isStream(fs.createReadStream('test.js')));21	t.true(isStream(fs.createWriteStream(tempy.file())));22	t.true(isStream(new net.Socket()));23	t.false(isStream({}));24	t.false(isStream(null));25	t.false(isStream(undefined));26	t.false(isStream(''));27});28test('isWritableStream()', t => {29	t.true(isWritableStream(new Stream.Writable()));30	t.true(isWritableStream(new Stream.Duplex()));31	t.true(isWritableStream(new Stream.Transform()));32	t.true(isWritableStream(new Stream.PassThrough()));33	t.true(isWritableStream(fs.createWriteStream(tempy.file())));34	t.true(isWritableStream(new net.Socket()));35	t.false(isWritableStream(new Stream.Stream()));36	t.false(isWritableStream(new Stream.Readable()));37	t.false(isWritableStream(fs.createReadStream('test.js')));38});39test('isReadableStream()', t => {40	t.true(isReadableStream(new Stream.Readable()));41	t.true(isReadableStream(new Stream.Duplex()));42	t.true(isReadableStream(new Stream.Transform()));43	t.true(isReadableStream(new Stream.PassThrough()));44	t.true(isReadableStream(fs.createReadStream('test.js')));45	t.true(isReadableStream(new net.Socket()));46	t.false(isReadableStream(new Stream.Stream()));47	t.false(isReadableStream(new Stream.Writable()));48	t.false(isReadableStream(fs.createWriteStream(tempy.file())));49});50test('isDuplexStream()', t => {51	t.true(isDuplexStream(new Stream.Duplex()));52	t.true(isDuplexStream(new Stream.Transform()));53	t.true(isDuplexStream(new Stream.PassThrough()));54	t.false(isDuplexStream(new Stream.Stream()));55	t.false(isDuplexStream(new Stream.Readable()));56	t.false(isDuplexStream(new Stream.Writable()));57	t.false(isDuplexStream(fs.createReadStream('test.js')));58	t.false(isDuplexStream(fs.createWriteStream(tempy.file())));59});60test('isTransformStream()', t => {61	t.true(isTransformStream(new Stream.Transform()));62	t.true(isTransformStream(new Stream.PassThrough()));63	t.false(isTransformStream(new Stream.Duplex()));64	t.false(isTransformStream(new Stream.Stream()));65	t.false(isTransformStream(new Stream.Readable()));66	t.false(isTransformStream(new Stream.Writable()));67	t.false(isTransformStream(fs.createReadStream('test.js')));68	t.false(isTransformStream(fs.createWriteStream(tempy.file())));...

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var input = fs.createReadStream('input.txt');4var output = fs.createWriteStream('output.txt');5var transform = wptools.IsTransformStream({6});7input.pipe(transform).pipe(output);8var wptools = require('wptools');9var fs = require('fs');10var input = fs.createReadStream('input.txt');11var output = fs.createWriteStream('output.txt');12var transform = wptools.IsTransformStream({13});14input.pipe(transform).pipe(output);15var wptools = require('wptools');16var fs = require('fs');17var input = fs.createReadStream('input.txt');18var output = fs.createWriteStream('output.txt');19var transform = wptools.IsTransformStream({20});21input.pipe(transform).pipe(output);22var wptools = require('wptools');23var fs = require('fs');24var input = fs.createReadStream('input.txt');25var output = fs.createWriteStream('output.txt');26var transform = wptools.IsTransformStream({27});28input.pipe(transform).pipe(output);29var wptools = require('wptools');30var fs = require('fs');31var input = fs.createReadStream('input.txt');32var output = fs.createWriteStream('output.txt

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const Transform = require('stream').Transform;4const isTransformStream = wptools.isTransformStream;5const isReadableStream = wptools.isReadableStream;6const isWritableStream = wptools.isWritableStream;7const isDuplexStream = wptools.isDuplexStream;8const stream1 = fs.createReadStream('test.js', {encoding: 'utf-8'});9const stream2 = fs.createWriteStream('test.txt');10const stream3 = new Transform();11const stream4 = new Transform();12Your name to display (optional):13Your name to display (optional):14Your name to display (optional):

Using AI Code Generation

1var wptools = require('wp-tools');2var isTransformStream = wptools.isTransformStream;3console.log(isTransformStream(new require('stream').Transform()));4var wptools = require('wp-tools');5var isTransformStream = wptools.isTransformStream;6console.log(isTransformStream(new require('stream').Readable()));7var wptools = require('wp-tools');8var isTransformStream = wptools.isTransformStream;9console.log(isTransformStream(new require('stream').Writable()));10var wptools = require('wp-tools');11var isTransformStream = wptools.isTransformStream;12console.log(isTransformStream(new require('stream').Duplex()));13var wptools = require('wp-tools');14var isTransformStream = wptools.isTransformStream;15console.log(isTransformStream(new require('stream').PassThrough()));16var wptools = require('wp-tools');17var isTransformStream = wptools.isTransformStream;18console.log(isTransformStream(new require('stream').Transform()));19var wptools = require('wp-tools');20var isTransformStream = wptools.isTransformStream;21console.log(isTransformStream(new require('stream').Readable()));22var wptools = require('wp-tools');23var isTransformStream = wptools.isTransformStream;24console.log(isTransformStream(new require('stream').Writable()));25var wptools = require('wp-tools');26var isTransformStream = wptools.isTransformStream;27console.log(isTransformStream(new require('stream

Using AI Code Generation

1var wptools = require('wptools');2var transform = new wptools.IsTransformStream();3transform.on('data', function(data) {4  console.log(data);5});6transform.write('en:Albert Einstein');7transform.end();8IsTransformStream {9   ReadableState {10     encoding: null },11  _events: { data: [Function] },12     userAgent: 'wptools/1.1.0' },

Using AI Code Generation

1const wpt = require('wpt');2var isTransformStream = wpt.isTransformStream;3var stream = new TransformStream();4var bool = isTransformStream(stream);5console.log(bool);6const wpt = require('wpt');7var isTransformStream = wpt.isTransformStream;8var stream = new ReadableStream();9var bool = isTransformStream(stream);10console.log(bool);

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.