Best JavaScript code snippet using wpt
through2-ctor.test.ts
Source:through2-ctor.test.ts
...70 const ThroughRandomBytes = ctor(name, ctorTransform)71 const stream = new ThroughRandomBytes()72 const sink = new PassThrough()73 stream.pipe(sink)74 writeArrayToStream(generateData(), stream)75 stream.end()76 const actual = await streamToArray(sink)77 expect(actual[0]).toEqual(expected)78 })79 it('Reuse: create multiple streams with the subclass returned by ctor', async () => {80 const name = 'ThroughRandomBytes'81 const expected = `${fillString('a', 10)}${fillString('b', 5)}${fillString(82 'c',83 1084 )}`85 const ThroughRandomBytes = ctor(name, ctorTransform)86 const stream1 = new ThroughRandomBytes()87 const stream2 = new ThroughRandomBytes()88 const sink1 = new PassThrough()89 const sink2 = new PassThrough()90 stream1.pipe(sink1)91 stream2.pipe(sink2)92 writeArrayToStream(generateData(), stream1)93 stream1.end()94 writeArrayToStream(generateData(), stream2)95 stream2.end()96 const [stream2Actual] = await streamToArray(sink1)97 expect(stream2Actual).toEqual(expected)98 })99 it('ObjectMode: creates a Through2 subclass that works in object mode', async () => {100 const name = 'ThroughObjectStream'101 const data = [{ in: 101 }, { in: 202 }, { in: -100 }]102 const expected = [{ out: 102 }, { out: 203 }, { out: -99 }]103 const ThroughObjectStream = ctor(name, transformObj, { objectMode: true })104 const stream = new ThroughObjectStream()105 writeArrayToStream(data, stream)106 stream.end()107 const actual = await objectStreamToArray(stream)108 expect(actual).toEqual(expected)109 })110 it('pipeable: reads data piped from another stream', async () => {111 const name = 'TemperatureConverterStream'112 const TemperatureConverterStream = ctor(name, temperatureConverter, {113 objectMode: true114 })115 const stream = new TemperatureConverterStream()116 const data = [117 { value: -2.2, unit: 'F' },118 { value: -40, unit: 'F' },119 { value: 212, unit: 'F' },120 { value: 22, unit: 'C' }121 ]122 const expected = [123 { value: -19, unit: 'C' },124 { value: -40, unit: 'C' },125 { value: 100, unit: 'C' },126 { value: 71.6, unit: 'F' }127 ]128 const source = createSourceWithData(data, true)129 source.pipe(stream)130 const actual = await objectStreamToArray(stream)131 expect(actual).toEqual(expected)132 })133 it('overrides options provided when creating the constructor', async () => {134 const name = 'ThroughOverrideStream'135 const data = [{ in: 101 }, { in: 202 }, { in: -100 }]136 const expected = [{ out: 102 }, { out: 203 }, { out: -99 }]137 const options: TransformOptions = { objectMode: true }138 // eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/no-unsafe-assignment139 const ThroughOverrideStream = ctor(name, transformObj) as any140 // eslint-disable-next-line @typescript-eslint/no-unsafe-call141 const stream = new ThroughOverrideStream(options) as Transform142 writeArrayToStream(data, stream)143 stream.end()144 const actual = await objectStreamToArray(stream)145 expect(actual).toEqual(expected)146 })147 it('Accepts custom options when sub-classing Through2', async () => {148 const name = 'ThroughCustomOptionsStream'149 const data = [{ in: 101 }, { in: 202 }, { in: -100 }]150 const expected = [{ out: 102 }, { out: 203 }, { out: -99 }]151 const ThroughCustomOptionsStream = ctor(152 name,153 transformObjWithCustomOptions,154 {155 objectMode: true,156 peek: true157 }158 )159 const stream = new ThroughCustomOptionsStream()160 writeArrayToStream(data, stream)161 stream.end()162 const actual = await objectStreamToArray(stream)163 expect(actual).toEqual(expected)164 })165 it('overrides to add custom options provided when creating the constructor', async () => {166 const name = 'ThroughCustomOptionsStream'167 const data = [{ in: 101 }, { in: 202 }, { in: -100 }]168 const expected = [{ out: 102 }, { out: 203 }, { out: -99 }]169 const ThroughCustomOptionsStream = ctor(name, transformObjWithCustomOptions)170 // eslint-disable-next-line @typescript-eslint/no-explicit-any171 const options: any = {172 objectMode: true,173 peek: true174 }175 const stream = new ThroughCustomOptionsStream(options)176 writeArrayToStream(data, stream)177 stream.end()178 const actual = await objectStreamToArray(stream)179 expect(actual).toEqual(expected)180 })181 it('Flush: uses the flush implementation if one is provided', (done) => {182 let chunkCalled = false183 const transformWithFlush = function transformWithFlush(184 chunk: Buffer,185 _: BufferEncoding,186 callback: TransformCallback187 ): void {188 expect(chunk.toString()).toEqual('aa')189 chunkCalled = true190 callback()...
helper.js
Source:helper.js
...27 stream.write(WIN_EOL, optionalCallback)28 return29 }30 stream.once('drain', function() {31 module.exports.writeArrayToStream(arr, stream, optionalCallback)32 })33}34module.exports.vbsOutputTransform = function(chunk, enc, callback) {35 try {36 if (enc === 'buffer') {37 chunk = chunk.toString()38 } else {39 chunk = chunk.toString(enc)40 }41 this.push(JSON.parse(chunk))42 } catch (e) {43 return callback(e)44 }45 return callback()...
Using AI Code Generation
1var wptools = require('wptools');2var fs = require('fs');3var stream = fs.createWriteStream("test.txt");4var array = ["one", "two", "three"];5wptools.writeArrayToStream(array, stream, function(err) {6 if (err) {7 console.log(err);8 } else {9 console.log("done");10 }11});
Using AI Code Generation
1var wptools = require('wptools');2var fs = require('fs');3var output = fs.createWriteStream('output.txt');4var array = ['one', 'two', 'three'];5wptools.writeArrayToStream(array, output, function(err) {6 if (err) {7 console.log('error while writing array to stream');8 }9});10writeArrayToStream(array, output, callback)11var fs = require('fs');12var wptools = require('wptools');13var output = fs.createWriteStream('output.txt');14var array = ['one', 'two', 'three'];15wptools.writeArrayToStream(array, output, function(err) {16 if (err) {17 console.log('error while writing array to stream');18 }19});20writeArrayToStreamSync(array, output)21var fs = require('fs');22var wptools = require('wptools');23var output = fs.createWriteStream('output.txt');24var array = ['one', 'two', 'three'];25wptools.writeArrayToStreamSync(array, output);26writeArrayToStreamSync(array, output, callback)27var fs = require('fs');28var wptools = require('wptools');29var output = fs.createWriteStream('output.txt');30var array = ['one', 'two', 'three'];31wptools.writeArrayToStreamSync(array, output, function(err) {32 if (err) {33 console.log('error while writing array to stream');34 }35});36writeArrayToStreamSync(array, output)37var fs = require('fs');38var wptools = require('wptools');39var output = fs.createWriteStream('output.txt');40var array = ['one', 'two', 'three'];41wptools.writeArrayToStreamSync(array, output
Using AI Code Generation
1var wptools = require('wptools');2var stream = wptools.writeArrayToStream(['a', 'b', 'c']);3stream.on('data', function(chunk) {4 console.log(chunk.toString());5});6stream.on('end', function() {7 console.log('done');8});
Using AI Code Generation
1var wptools = require('wptools');2var fs = require('fs');3var stream = fs.createWriteStream("my_file.txt");4wptools.writeArrayToStream(stream, ["hello", "world"]);5var wptools = require('wptools');6var fs = require('fs');7var stream = fs.createWriteStream("my_file.txt");8wptools.writeArrayToStream(stream, ["hello", "world"]);9var wptools = require('wptools');10var fs = require('fs');11var stream = fs.createWriteStream("my_file.txt");12wptools.writeArrayToStream(stream, ["hello", "world"]);13var wptools = require('wptools');14var fs = require('fs');15var stream = fs.createWriteStream("my_file.txt");16wptools.writeArrayToStream(stream, ["hello", "world"]);17var wptools = require('wptools');18var fs = require('fs');19var stream = fs.createWriteStream("my_file.txt");20wptools.writeArrayToStream(stream, ["hello", "world"]);21var wptools = require('wptools');22var fs = require('fs');23var stream = fs.createWriteStream("my_file.txt");24wptools.writeArrayToStream(stream, ["hello", "world"]);25var wptools = require('wptools');26var fs = require('fs');27var stream = fs.createWriteStream("my_file.txt");28wptools.writeArrayToStream(stream, ["hello", "world"]);29var wptools = require('wptools');30var fs = require('fs');31var stream = fs.createWriteStream("my_file.txt");32wptools.writeArrayToStream(stream, ["hello",
Using AI Code Generation
1var wptools = require('wptools');2var fs = require('fs');3var stream = fs.createWriteStream("test.txt");4var myArray = ['Hello', 'World'];5wptools.writeArrayToStream(myArray, stream);6getWikiData(title, callback)7var wptools = require('wptools');8wptools.getWikiData('Wikipedia', function(wikiData) {9 console.log(wikiData);10});11getWikiDataFromStream(stream, callback)12var wptools = require('wptools');13var fs = require('fs');14var stream = fs.createReadStream("test.txt");15wptools.getWikiDataFromStream(stream, function(wikiData) {16 console.log(wikiData);17});
Using AI Code Generation
1var wptools = require('wptools');2var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];3wptools.writeArrayToStream(array, 'csv', 'test.csv');4var wptools = require('wptools');5var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];6wptools.writeArrayToStream(array, 'json', 'test.json');7var wptools = require('wptools');8var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];9wptools.writeArrayToStream(array, 'xml', 'test.xml');10var wptools = require('wptools');11var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];12wptools.writeArrayToStream(array, 'yaml', 'test.yaml');13var wptools = require('wptools');14var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];15wptools.writeArrayToStream(array, 'txt', 'test.txt');16var wptools = require('wptools');17var array = [{id: 1, name: 'foo'}, {id: 2, name: 'bar'}];18wptools.writeArrayToStream(array, 'html', 'test.html');
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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!