KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use sinkWritePromise method in wpt

Best JavaScript code snippet using wpt

write.js

Source:write.js

1'use strict';2if (self.importScripts) {3  self.importScripts('/resources/testharness.js');4  self.importScripts('../resources/test-utils.js');5  self.importScripts('../resources/recording-streams.js');6}7const error1 = new Error('error1');8error1.name = 'error1';9const error2 = new Error('error2');10error2.name = 'error2';11function writeArrayToStream(array, writableStreamWriter) {12  array.forEach(chunk => writableStreamWriter.write(chunk));13  return writableStreamWriter.close();14}15promise_test(() => {16  let storage;17  const ws = new WritableStream({18    start() {19      storage = [];20    },21    write(chunk) {22      return delay(0).then(() => storage.push(chunk));23    },24    close() {25      return delay(0);26    }27  });28  const writer = ws.getWriter();29  const input = [1, 2, 3, 4, 5];30  return writeArrayToStream(input, writer)31      .then(() => assert_array_equals(storage, input, 'correct data should be relayed to underlying sink'));32}, 'WritableStream should complete asynchronous writes before close resolves');33promise_test(() => {34  const ws = recordingWritableStream();35  const writer = ws.getWriter();36  const input = [1, 2, 3, 4, 5];37  return writeArrayToStream(input, writer)38      .then(() => assert_array_equals(ws.events, ['write', 1, 'write', 2, 'write', 3, 'write', 4, 'write', 5, 'close'],39                                      'correct data should be relayed to underlying sink'));40}, 'WritableStream should complete synchronous writes before close resolves');41promise_test(() => {42  const ws = new WritableStream({43    write() {44      return 'Hello';45    }46  });47  const writer = ws.getWriter();48  const writePromise = writer.write('a');49  return writePromise50      .then(value => assert_equals(value, undefined, 'fulfillment value must be undefined'));51}, 'fulfillment value of ws.write() call should be undefined even if the underlying sink returns a non-undefined ' +52    'value');53promise_test(() => {54  let resolveSinkWritePromise;55  const ws = new WritableStream({56    write() {57      return new Promise(resolve => {58        resolveSinkWritePromise = resolve;59      });60    }61  });62  const writer = ws.getWriter();63  assert_equals(writer.desiredSize, 1, 'desiredSize should be 1');64  return writer.ready.then(() => {65    const writePromise = writer.write('a');66    let writePromiseResolved = false;67    assert_not_equals(resolveSinkWritePromise, undefined, 'resolveSinkWritePromise should not be undefined');68    assert_equals(writer.desiredSize, 0, 'desiredSize should be 0 after writer.write()');69    return Promise.all([70      writePromise.then(value => {71        writePromiseResolved = true;72        assert_equals(resolveSinkWritePromise, undefined, 'sinkWritePromise should be fulfilled before writePromise');73        assert_equals(value, undefined, 'writePromise should be fulfilled with undefined');74      }),75      writer.ready.then(value => {76        assert_equals(resolveSinkWritePromise, undefined, 'sinkWritePromise should be fulfilled before writer.ready');77        assert_true(writePromiseResolved, 'writePromise should be fulfilled before writer.ready');78        assert_equals(writer.desiredSize, 1, 'desiredSize should be 1 again');79        assert_equals(value, undefined, 'writePromise should be fulfilled with undefined');80      }),81      flushAsyncEvents().then(() => {82        resolveSinkWritePromise();83        resolveSinkWritePromise = undefined;84      })85    ]);86  });87}, 'WritableStream should transition to waiting until write is acknowledged');88promise_test(t => {89  let sinkWritePromiseRejectors = [];90  const ws = new WritableStream({91    write() {92      const sinkWritePromise = new Promise((r, reject) => sinkWritePromiseRejectors.push(reject));93      return sinkWritePromise;94    }95  });96  const writer = ws.getWriter();97  assert_equals(writer.desiredSize, 1, 'desiredSize should be 1');98  return writer.ready.then(() => {99    const writePromise = writer.write('a');100    assert_equals(sinkWritePromiseRejectors.length, 1, 'there should be 1 rejector');101    assert_equals(writer.desiredSize, 0, 'desiredSize should be 0');102    const writePromise2 = writer.write('b');103    assert_equals(sinkWritePromiseRejectors.length, 1, 'there should be still 1 rejector');104    assert_equals(writer.desiredSize, -1, 'desiredSize should be -1');105    const closedPromise = writer.close();106    assert_equals(writer.desiredSize, -1, 'desiredSize should still be -1');107    return Promise.all([108      promise_rejects(t, error1, closedPromise,109                      'closedPromise should reject with the error returned from the sink\'s write method')110          .then(() => assert_equals(sinkWritePromiseRejectors.length, 0,111                                    'sinkWritePromise should reject before closedPromise')),112      promise_rejects(t, error1, writePromise,113                      'writePromise should reject with the error returned from the sink\'s write method')114          .then(() => assert_equals(sinkWritePromiseRejectors.length, 0,115                                    'sinkWritePromise should reject before writePromise')),116      promise_rejects(t, error1, writePromise2,117                      'writePromise2 should reject with the error returned from the sink\'s write method')118          .then(() => assert_equals(sinkWritePromiseRejectors.length, 0,119                                    'sinkWritePromise should reject before writePromise2')),120      flushAsyncEvents().then(() => {121        sinkWritePromiseRejectors[0](error1);122        sinkWritePromiseRejectors = [];123      })124    ]);125  });126}, 'when write returns a rejected promise, queued writes and close should be cleared');127promise_test(t => {128  const ws = new WritableStream({129    write() {130      throw error1;131    }132  });133  const writer = ws.getWriter();134  return promise_rejects(t, error1, writer.write('a'),135                         'write() should reject with the error returned from the sink\'s write method')136      .then(() => promise_rejects(t, new TypeError(), writer.close(), 'close() should be rejected'));137}, 'when sink\'s write throws an error, the stream should become errored and the promise should reject');138promise_test(t => {139  const ws = new WritableStream({140    write(chunk, controller) {141      controller.error(error1);142      throw error2;143    }144  });145  const writer = ws.getWriter();146  return promise_rejects(t, error2, writer.write('a'),147                         'write() should reject with the error returned from the sink\'s write method ')148  .then(() => {149    return Promise.all([150      promise_rejects(t, error1, writer.ready,151                      'writer.ready must reject with the error passed to the controller'),152      promise_rejects(t, error1, writer.closed,153                      'writer.closed must reject with the error passed to the controller')154    ]);155  });156}, 'writer.write(), ready and closed reject with the error passed to controller.error() made before sink.write' +157    ' rejection');158promise_test(() => {159  const numberOfWrites = 1000;160  let resolveFirstWritePromise;161  let writeCount = 0;162  const ws = new WritableStream({163    write() {164      ++writeCount;165      if (!resolveFirstWritePromise) {166        return new Promise(resolve => {167          resolveFirstWritePromise = resolve;168        });169      }170      return Promise.resolve();171    }172  });173  const writer = ws.getWriter();174  return writer.ready.then(() => {175    for (let i = 1; i < numberOfWrites; ++i) {176      writer.write('a');177    }178    const writePromise = writer.write('a');179    assert_equals(writeCount, 1, 'should have called sink\'s write once');180    resolveFirstWritePromise();181    return writePromise182        .then(() =>183        assert_equals(writeCount, numberOfWrites, `should have called sink's write ${numberOfWrites} times`));184  });185}, 'a large queue of writes should be processed completely');186promise_test(() => {187  const stream = recordingWritableStream();188  const w = stream.getWriter();189  const WritableStreamDefaultWriter = w.constructor;190  w.releaseLock();191  const writer = new WritableStreamDefaultWriter(stream);192  return writer.ready.then(() => {193    writer.write('a');194    assert_array_equals(stream.events, ['write', 'a'], 'write() should be passed to sink');195  });196}, 'WritableStreamDefaultWriter should work when manually constructed');197promise_test(() => {198  let thenCalled = false;199  const ws = new WritableStream({200    write() {201      return {202        then(onFulfilled) {203          thenCalled = true;204          onFulfilled();205        }206      };207    }208  });209  return ws.getWriter().write('a').then(() => assert_true(thenCalled, 'thenCalled should be true'));210}, 'returning a thenable from write() should work');...

Using AI Code Generation

1const wpt = require('wpt');2wpt.sinkWritePromise('test.js', 'Hello World!');3const wpt = require('wpt');4wpt.sinkWritePromise('test.js', 'Hello World!');5const wpt = require('wpt');6wpt.sinkWritePromise('test.js', 'Hello World!');7const wpt = require('wpt');8wpt.sinkWritePromise('test.js', 'Hello World!');9const wpt = require('wpt');10wpt.sinkWritePromise('test.js', 'Hello World!');11const wpt = require('wpt');12wpt.sinkWritePromise('test.js', 'Hello World!');13const wpt = require('wpt');14wpt.sinkWritePromise('test.js', 'Hello World!');15const wpt = require('wpt');16wpt.sinkWritePromise('test.js', 'Hello World!');17const wpt = require('wpt');18wpt.sinkWritePromise('test.js', 'Hello World!');19const wpt = require('wpt');20wpt.sinkWritePromise('test.js', 'Hello World!');21const wpt = require('wpt');22wpt.sinkWritePromise('test.js', 'Hello World!');23const wpt = require('wpt');24wpt.sinkWritePromise('test.js', 'Hello World!');

Using AI Code Generation

1sinkWritePromise = wpt.sinkWritePromise("test.txt", "This is a test file");2sinkWritePromise.then(function(result) {3    console.log(result);4});5sinkWritePromise.catch(function(error) {6    console.log(error);7});8wpt.sinkWrite("test.txt", "This is a test file", function(error, result) {9    if(error) {10        console.log(error);11    } else {12        console.log(result);13    }14});15sinkReadPromise = wpt.sinkReadPromise("test.txt");16sinkReadPromise.then(function(result) {17    console.log(result);18});19sinkReadPromise.catch(function(error) {20    console.log(error);21});22wpt.sinkRead("test.txt", function(error, result) {23    if(error) {24        console.log(error);25    } else {26        console.log(result);27    }28});29sinkDeletePromise = wpt.sinkDeletePromise("test.txt");30sinkDeletePromise.then(function(result) {31    console.log(result);32});33sinkDeletePromise.catch(function(error) {34    console.log(error);35});36wpt.sinkDelete("test.txt", function(error, result) {37    if(error) {38        console.log(error);39    } else {40        console.log(result);41    }42});43sinkListPromise = wpt.sinkListPromise();44sinkListPromise.then(function(result) {45    console.log(result);46});47sinkListPromise.catch(function(error) {48    console.log(error);49});50wpt.sinkList(function(error, result) {51    if(error) {52        console.log(error);53    } else {54        console.log(result);55    }56});57sinkExistsPromise = wpt.sinkExistsPromise("test.txt");58sinkExistsPromise.then(function(result) {59    console.log(result);60});61sinkExistsPromise.catch(function(error)

Using AI Code Generation

1const wptools = require('wptools');2const fs = require('fs');3const sink = fs.createWriteStream('output.txt');4wptools.page('Barack_Obama').get()5  .then(page => page.sinkWritePromise(sink))6  .then(() => {7    console.log('done writing');8    sink.end();9  })10  .catch(err => console.log(err));

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var stream = fs.createWriteStream('test.txt');4var promise = wptools.sinkWritePromise(stream);5var wp = new wptools();6wp.set('input', 'test');7wp.sinkWrite(stream);8stream.end();9wp.sinkWrite(stream).then(function(){10stream.end();11});12wp.sinkWrite(stream).then(function(){13stream.end();14});15wp.sinkWrite(stream).then(function(){16stream.end();17});18wp.sinkWrite(stream).then(function(){19stream.end();20});21wp.sinkWrite(stream).then(function(){22stream.end();23});24wp.sinkWrite(stream).then(function(){25stream.end();26});27wp.sinkWrite(stream).then(function(){28stream.end();29});30wp.sinkWrite(stream).then(function(){31stream.end();32});33wp.sinkWrite(stream).then(function(){34stream.end();35});36wp.sinkWrite(stream).then(function(){37stream.end();38});39wp.sinkWrite(stream).then(function(){40stream.end();41});42wp.sinkWrite(stream).then(function(){43stream.end();44});45wp.sinkWrite(stream).then(function(){46stream.end();47});48wp.sinkWrite(stream).then(function(){49stream.end();50});51wp.sinkWrite(stream).then(function(){52stream.end();53});

Using AI Code Generation

1const wpt = new WritableStreamDefaultWriter(sink);2const writePromise = wpt.writePromise(chunk);3writePromise.then(() => {4  wpt.close();5  console.log('write complete');6}).catch(e => console.error(e));7const wpt = new WritableStreamDefaultWriter(sink);8wpt.write(chunk);9wpt.close();10console.log('write complete');

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.