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How to use waitThenAdvance method in wpt

Best JavaScript code snippet using wpt

flow-control.js

Source:flow-control.js

...142    this.wakers = [];143  }144  // Returns promise which resolves when step `n` is reached. Also schedules step n + 1 to happen shortly after the145  // promise is resolved.146  waitThenAdvance(n) {147    if (this.waiters[n] === undefined) {148      this.waiters[n] = new Promise(resolve => {149        this.wakers[n] = resolve;150      });151      this.waiters[n]152          .then(() => flushAsyncEvents())153          .then(() => {154            if (this.wakers[n + 1] !== undefined) {155              this.wakers[n + 1]();156            }157          });158    }159    if (n == 0) {160      this.wakers[0]();161    }162    return this.waiters[n];163  }164}165promise_test(() => {166  const steps = new StepTracker();167  const desiredSizes = [];168  const rs = recordingReadableStream({169    start(controller) {170      steps.waitThenAdvance(1).then(() => enqueue('a'));171      steps.waitThenAdvance(3).then(() => enqueue('b'));172      steps.waitThenAdvance(5).then(() => enqueue('c'));173      steps.waitThenAdvance(7).then(() => enqueue('d'));174      steps.waitThenAdvance(11).then(() => controller.close());175      function enqueue(chunk) {176        controller.enqueue(chunk);177        desiredSizes.push(controller.desiredSize);178      }179    }180  });181  const chunksFinishedWriting = [];182  const writableStartPromise = Promise.resolve();183  let writeCalled = false;184  const ws = recordingWritableStream({185    start() {186      return writableStartPromise;187    },188    write(chunk) {189      const waitForStep = writeCalled ? 12 : 9;190      writeCalled = true;191      return steps.waitThenAdvance(waitForStep).then(() => {192        chunksFinishedWriting.push(chunk);193      });194    }195  });196  return writableStartPromise.then(() => {197    const pipePromise = rs.pipeTo(ws);198    steps.waitThenAdvance(0);199    return Promise.all([200      steps.waitThenAdvance(2).then(() => {201        assert_array_equals(chunksFinishedWriting, [], 'at step 2, zero chunks must have finished writing');202        assert_array_equals(ws.events, ['write', 'a'], 'at step 2, one chunk must have been written');203        // When 'a' (the very first chunk) was enqueued, it was immediately used to fulfill the outstanding read request204        // promise, leaving the queue empty.205        assert_array_equals(desiredSizes, [1],206                            'at step 2, the desiredSize at the last enqueue (step 1) must have been 1');207        assert_equals(rs.controller.desiredSize, 1, 'at step 2, the current desiredSize must be 1');208      }),209      steps.waitThenAdvance(4).then(() => {210        assert_array_equals(chunksFinishedWriting, [], 'at step 4, zero chunks must have finished writing');211        assert_array_equals(ws.events, ['write', 'a'], 'at step 4, one chunk must have been written');212        // When 'b' was enqueued at step 3, the queue was also empty, since immediately after enqueuing 'a' at213        // step 1, it was dequeued in order to fulfill the read() call that was made at step 0. Thus the queue214        // had size 1 (thus desiredSize of 0).215        assert_array_equals(desiredSizes, [1, 0],216                            'at step 4, the desiredSize at the last enqueue (step 3) must have been 0');217        assert_equals(rs.controller.desiredSize, 0, 'at step 4, the current desiredSize must be 0');218      }),219      steps.waitThenAdvance(6).then(() => {220        assert_array_equals(chunksFinishedWriting, [], 'at step 6, zero chunks must have finished writing');221        assert_array_equals(ws.events, ['write', 'a'], 'at step 6, one chunk must have been written');222        // When 'c' was enqueued at step 5, the queue was not empty; it had 'b' in it, since 'b' will not be read until223        // the first write completes at step 9. Thus, the queue size is 2 after enqueuing 'c', giving a desiredSize of224        // -1.225        assert_array_equals(desiredSizes, [1, 0, -1],226                            'at step 6, the desiredSize at the last enqueue (step 5) must have been -1');227        assert_equals(rs.controller.desiredSize, -1, 'at step 6, the current desiredSize must be -1');228      }),229      steps.waitThenAdvance(8).then(() => {230        assert_array_equals(chunksFinishedWriting, [], 'at step 8, zero chunks must have finished writing');231        assert_array_equals(ws.events, ['write', 'a'], 'at step 8, one chunk must have been written');232        // When 'd' was enqueued at step 7, the situation is the same as before, leading to a queue containing 'b', 'c',233        // and 'd'.234        assert_array_equals(desiredSizes, [1, 0, -1, -2],235                            'at step 8, the desiredSize at the last enqueue (step 7) must have been -2');236        assert_equals(rs.controller.desiredSize, -2, 'at step 8, the current desiredSize must be -2');237      }),238      steps.waitThenAdvance(10).then(() => {239        assert_array_equals(chunksFinishedWriting, ['a'], 'at step 10, one chunk must have finished writing');240        assert_array_equals(ws.events, ['write', 'a', 'write', 'b'],241                            'at step 10, two chunks must have been written');242        assert_equals(rs.controller.desiredSize, -1, 'at step 10, the current desiredSize must be -1');243      }),244      pipePromise.then(() => {245        assert_array_equals(desiredSizes, [1, 0, -1, -2], 'backpressure must have been exerted at the source');246        assert_array_equals(chunksFinishedWriting, ['a', 'b', 'c', 'd'], 'all chunks finished writing');247        assert_array_equals(rs.eventsWithoutPulls, [], 'nothing unexpected should happen to the ReadableStream');248        assert_array_equals(ws.events, ['write', 'a', 'write', 'b', 'write', 'c', 'write', 'd', 'close'],249                            'all chunks were written (and the WritableStream closed)');250      })251    ]);252  });...

flow-control.any.js

Source:flow-control.any.js

...136    this.wakers = [];137  }138  // Returns promise which resolves when step `n` is reached. Also schedules step n + 1 to happen shortly after the139  // promise is resolved.140  waitThenAdvance(n) {141    if (this.waiters[n] === undefined) {142      this.waiters[n] = new Promise(resolve => {143        this.wakers[n] = resolve;144      });145      this.waiters[n]146          .then(() => flushAsyncEvents())147          .then(() => {148            if (this.wakers[n + 1] !== undefined) {149              this.wakers[n + 1]();150            }151          });152    }153    if (n == 0) {154      this.wakers[0]();155    }156    return this.waiters[n];157  }158}159promise_test(() => {160  const steps = new StepTracker();161  const desiredSizes = [];162  const rs = recordingReadableStream({163    start(controller) {164      steps.waitThenAdvance(1).then(() => enqueue('a'));165      steps.waitThenAdvance(3).then(() => enqueue('b'));166      steps.waitThenAdvance(5).then(() => enqueue('c'));167      steps.waitThenAdvance(7).then(() => enqueue('d'));168      steps.waitThenAdvance(11).then(() => controller.close());169      function enqueue(chunk) {170        controller.enqueue(chunk);171        desiredSizes.push(controller.desiredSize);172      }173    }174  });175  const chunksFinishedWriting = [];176  const writableStartPromise = Promise.resolve();177  let writeCalled = false;178  const ws = recordingWritableStream({179    start() {180      return writableStartPromise;181    },182    write(chunk) {183      const waitForStep = writeCalled ? 12 : 9;184      writeCalled = true;185      return steps.waitThenAdvance(waitForStep).then(() => {186        chunksFinishedWriting.push(chunk);187      });188    }189  });190  return writableStartPromise.then(() => {191    const pipePromise = rs.pipeTo(ws);192    steps.waitThenAdvance(0);193    return Promise.all([194      steps.waitThenAdvance(2).then(() => {195        assert_array_equals(chunksFinishedWriting, [], 'at step 2, zero chunks must have finished writing');196        assert_array_equals(ws.events, ['write', 'a'], 'at step 2, one chunk must have been written');197        // When 'a' (the very first chunk) was enqueued, it was immediately used to fulfill the outstanding read request198        // promise, leaving the queue empty.199        assert_array_equals(desiredSizes, [1],200                            'at step 2, the desiredSize at the last enqueue (step 1) must have been 1');201        assert_equals(rs.controller.desiredSize, 1, 'at step 2, the current desiredSize must be 1');202      }),203      steps.waitThenAdvance(4).then(() => {204        assert_array_equals(chunksFinishedWriting, [], 'at step 4, zero chunks must have finished writing');205        assert_array_equals(ws.events, ['write', 'a'], 'at step 4, one chunk must have been written');206        // When 'b' was enqueued at step 3, the queue was also empty, since immediately after enqueuing 'a' at207        // step 1, it was dequeued in order to fulfill the read() call that was made at step 0. Thus the queue208        // had size 1 (thus desiredSize of 0).209        assert_array_equals(desiredSizes, [1, 0],210                            'at step 4, the desiredSize at the last enqueue (step 3) must have been 0');211        assert_equals(rs.controller.desiredSize, 0, 'at step 4, the current desiredSize must be 0');212      }),213      steps.waitThenAdvance(6).then(() => {214        assert_array_equals(chunksFinishedWriting, [], 'at step 6, zero chunks must have finished writing');215        assert_array_equals(ws.events, ['write', 'a'], 'at step 6, one chunk must have been written');216        // When 'c' was enqueued at step 5, the queue was not empty; it had 'b' in it, since 'b' will not be read until217        // the first write completes at step 9. Thus, the queue size is 2 after enqueuing 'c', giving a desiredSize of218        // -1.219        assert_array_equals(desiredSizes, [1, 0, -1],220                            'at step 6, the desiredSize at the last enqueue (step 5) must have been -1');221        assert_equals(rs.controller.desiredSize, -1, 'at step 6, the current desiredSize must be -1');222      }),223      steps.waitThenAdvance(8).then(() => {224        assert_array_equals(chunksFinishedWriting, [], 'at step 8, zero chunks must have finished writing');225        assert_array_equals(ws.events, ['write', 'a'], 'at step 8, one chunk must have been written');226        // When 'd' was enqueued at step 7, the situation is the same as before, leading to a queue containing 'b', 'c',227        // and 'd'.228        assert_array_equals(desiredSizes, [1, 0, -1, -2],229                            'at step 8, the desiredSize at the last enqueue (step 7) must have been -2');230        assert_equals(rs.controller.desiredSize, -2, 'at step 8, the current desiredSize must be -2');231      }),232      steps.waitThenAdvance(10).then(() => {233        assert_array_equals(chunksFinishedWriting, ['a'], 'at step 10, one chunk must have finished writing');234        assert_array_equals(ws.events, ['write', 'a', 'write', 'b'],235                            'at step 10, two chunks must have been written');236        assert_equals(rs.controller.desiredSize, -1, 'at step 10, the current desiredSize must be -1');237      }),238      pipePromise.then(() => {239        assert_array_equals(desiredSizes, [1, 0, -1, -2], 'backpressure must have been exerted at the source');240        assert_array_equals(chunksFinishedWriting, ['a', 'b', 'c', 'd'], 'all chunks finished writing');241        assert_array_equals(rs.eventsWithoutPulls, [], 'nothing unexpected should happen to the ReadableStream');242        assert_array_equals(ws.events, ['write', 'a', 'write', 'b', 'write', 'c', 'write', 'd', 'close'],243                            'all chunks were written (and the WritableStream closed)');244      })245    ]);246  });...

aflprep_flow-control.any.js

Source:aflprep_flow-control.any.js

...124  constructor() {125    this.waiters = [];126    this.wakers = [];127  }128  waitThenAdvance(n) {129    if (this.waiters[n] === undefined) {130      this.waiters[n] = new Promise(resolve => {131        this.wakers[n] = resolve;132      });133      this.waiters[n]134          .then(() => flushAsyncEvents())135          .then(() => {136            if (this.wakers[n + 1] !== undefined) {137              this.wakers[n + 1]();138            }139          });140    }141    if (n == 0) {142      this.wakers[0]();143    }144    return this.waiters[n];145  }146}147promise_test(() => {148  const steps = new StepTracker();149  const desiredSizes = [];150  const rs = recordingReadableStream({151    start(controller) {152      steps.waitThenAdvance(1).then(() => enqueue('a'));153      steps.waitThenAdvance(3).then(() => enqueue('b'));154      steps.waitThenAdvance(5).then(() => enqueue('c'));155      steps.waitThenAdvance(7).then(() => enqueue('d'));156      steps.waitThenAdvance(11).then(() => controller.close());157      function enqueue(chunk) {158        controller.enqueue(chunk);159        desiredSizes.push(controller.desiredSize);160      }161    }162  });163  const chunksFinishedWriting = [];164  const writableStartPromise = Promise.resolve();165  let writeCalled = false;166  const ws = recordingWritableStream({167    start() {168      return writableStartPromise;169    },170    write(chunk) {171      const waitForStep = writeCalled ? 12 : 9;172      writeCalled = true;173      return steps.waitThenAdvance(waitForStep).then(() => {174        chunksFinishedWriting.push(chunk);175      });176    }177  });178  return writableStartPromise.then(() => {179    const pipePromise = rs.pipeTo(ws);180    steps.waitThenAdvance(0);181    return Promise.all([182      steps.waitThenAdvance(2).then(() => {183        assert_array_equals(chunksFinishedWriting, [], 'at step 2, zero chunks must have finished writing');184        assert_array_equals(ws.events, ['write', 'a'], 'at step 2, one chunk must have been written');185        assert_array_equals(desiredSizes, [1],186                            'at step 2, the desiredSize at the last enqueue (step 1) must have been 1');187        assert_equals(rs.controller.desiredSize, 1, 'at step 2, the current desiredSize must be 1');188      }),189      steps.waitThenAdvance(4).then(() => {190        assert_array_equals(chunksFinishedWriting, [], 'at step 4, zero chunks must have finished writing');191        assert_array_equals(ws.events, ['write', 'a'], 'at step 4, one chunk must have been written');192        assert_array_equals(desiredSizes, [1, 0],193                            'at step 4, the desiredSize at the last enqueue (step 3) must have been 0');194        assert_equals(rs.controller.desiredSize, 0, 'at step 4, the current desiredSize must be 0');195      }),196      steps.waitThenAdvance(6).then(() => {197        assert_array_equals(chunksFinishedWriting, [], 'at step 6, zero chunks must have finished writing');198        assert_array_equals(ws.events, ['write', 'a'], 'at step 6, one chunk must have been written');199        assert_array_equals(desiredSizes, [1, 0, -1],200                            'at step 6, the desiredSize at the last enqueue (step 5) must have been -1');201        assert_equals(rs.controller.desiredSize, -1, 'at step 6, the current desiredSize must be -1');202      }),203      steps.waitThenAdvance(8).then(() => {204        assert_array_equals(chunksFinishedWriting, [], 'at step 8, zero chunks must have finished writing');205        assert_array_equals(ws.events, ['write', 'a'], 'at step 8, one chunk must have been written');206        assert_array_equals(desiredSizes, [1, 0, -1, -2],207                            'at step 8, the desiredSize at the last enqueue (step 7) must have been -2');208        assert_equals(rs.controller.desiredSize, -2, 'at step 8, the current desiredSize must be -2');209      }),210      steps.waitThenAdvance(10).then(() => {211        assert_array_equals(chunksFinishedWriting, ['a'], 'at step 10, one chunk must have finished writing');212        assert_array_equals(ws.events, ['write', 'a', 'write', 'b'],213                            'at step 10, two chunks must have been written');214        assert_equals(rs.controller.desiredSize, -1, 'at step 10, the current desiredSize must be -1');215      }),216      pipePromise.then(() => {217        assert_array_equals(desiredSizes, [1, 0, -1, -2], 'backpressure must have been exerted at the source');218        assert_array_equals(chunksFinishedWriting, ['a', 'b', 'c', 'd'], 'all chunks finished writing');219        assert_array_equals(rs.eventsWithoutPulls, [], 'nothing unexpected should happen to the ReadableStream');220        assert_array_equals(ws.events, ['write', 'a', 'write', 'b', 'write', 'c', 'write', 'd', 'close'],221                            'all chunks were written (and the WritableStream closed)');222      })223    ]);224  });...

Using AI Code Generation

1wpt.waitThenAdvance();2wpt.waitThenAdvance();3wpt.waitThenAdvance();4wpt.waitThenAdvance();5wpt.waitThenAdvance();6wpt.waitThenAdvance();7wpt.waitThenAdvance();8wpt.waitThenAdvance();9wpt.waitThenAdvance();10wpt.waitThenAdvance();11wpt.waitThenAdvance();12wpt.waitThenAdvance();13wpt.waitThenAdvance();14wpt.waitThenAdvance();15wpt.waitThenAdvance();16wpt.waitThenAdvance();17wpt.waitThenAdvance();18wpt.waitThenAdvance();19wpt.waitThenAdvance();

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3var options = {4};5wpt.runTest(url, options, function(err, data) {6    if (err) return console.error(err);7    console.log('Test status check: ' + data.statusText);8    wpt.waitThenAdvance(data.data.testId, 30, function(err, data) {9        if (err) return console.error(err);10        console.log('Test status check: ' + data.statusText);11        console.log('Test results: ' + data.data.summary);12    });13});14var wpt = require('webpagetest');15var wpt = new WebPageTest('www.webpagetest.org');16var options = {17};18wpt.runTest(url, options, function(err, data) {19    if (err) return console.error(err);20    console.log('Test status check: ' + data.statusText);21    wpt.waitThenAdvance(data.data.testId, 30, function(err, data) {22        if (err) return console.error(err);23        console.log('Test status check: ' + data.statusText);24        console.log('Test results: ' + data.data.summary);25    });26});27var wpt = require('webpagetest');28var wpt = new WebPageTest('www.webpagetest.org');29var options = {30};31wpt.runTest(url,

Using AI Code Generation

1wpt.waitThenAdvance(5000);2wpt.waitThenAdvance(5000);3wpt.waitThenAdvance(5000);4wpt.waitThenAdvance(5000);5wpt.waitThenAdvance(5000);6wpt.waitThenAdvance(5000);7wpt.waitThenAdvance(5000);8wpt.waitThenAdvance(5000);9wpt.waitThenAdvance(5000);10wpt.waitThenAdvance(5000);11wpt.waitThenAdvance(5000

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