How to use readableGetter method in wpt

Best JavaScript code snippet using wpt

general.any.js

Source:general.any.js

1// META: global=window,worker,jsshell2// META: script=../resources/test-utils.js3// META: script=../resources/rs-utils.js4'use strict';5test(() => {6  new TransformStream({ transform() { } });7}, 'TransformStream can be constructed with a transform function');8test(() => {9  new TransformStream();10  new TransformStream({});11}, 'TransformStream can be constructed with no transform function');12test(() => {13  const ts = new TransformStream({ transform() { } });14  const writer = ts.writable.getWriter();15  assert_equals(writer.desiredSize, 1, 'writer.desiredSize should be 1');16}, 'TransformStream writable starts in the writable state');17promise_test(() => {18  const ts = new TransformStream();19  const writer = ts.writable.getWriter();20  writer.write('a');21  assert_equals(writer.desiredSize, 0, 'writer.desiredSize should be 0 after write()');22  return ts.readable.getReader().read().then(result => {23    assert_equals(result.value, 'a',24      'result from reading the readable is the same as was written to writable');25    assert_false(result.done, 'stream should not be done');26    return delay(0).then(() => assert_equals(writer.desiredSize, 1, 'desiredSize should be 1 again'));27  });28}, 'Identity TransformStream: can read from readable what is put into writable');29promise_test(() => {30  let c;31  const ts = new TransformStream({32    start(controller) {33      c = controller;34    },35    transform(chunk) {36      c.enqueue(chunk.toUpperCase());37    }38  });39  const writer = ts.writable.getWriter();40  writer.write('a');41  return ts.readable.getReader().read().then(result => {42    assert_equals(result.value, 'A',43      'result from reading the readable is the transformation of what was written to writable');44    assert_false(result.done, 'stream should not be done');45  });46}, 'Uppercaser sync TransformStream: can read from readable transformed version of what is put into writable');47promise_test(() => {48  let c;49  const ts = new TransformStream({50    start(controller) {51      c = controller;52    },53    transform(chunk) {54      c.enqueue(chunk.toUpperCase());55      c.enqueue(chunk.toUpperCase());56    }57  });58  const writer = ts.writable.getWriter();59  writer.write('a');60  const reader = ts.readable.getReader();61  return reader.read().then(result1 => {62    assert_equals(result1.value, 'A',63      'the first chunk read is the transformation of the single chunk written');64    assert_false(result1.done, 'stream should not be done');65    return reader.read().then(result2 => {66      assert_equals(result2.value, 'A',67        'the second chunk read is also the transformation of the single chunk written');68      assert_false(result2.done, 'stream should not be done');69    });70  });71}, 'Uppercaser-doubler sync TransformStream: can read both chunks put into the readable');72promise_test(() => {73  let c;74  const ts = new TransformStream({75    start(controller) {76      c = controller;77    },78    transform(chunk) {79      return delay(0).then(() => c.enqueue(chunk.toUpperCase()));80    }81  });82  const writer = ts.writable.getWriter();83  writer.write('a');84  return ts.readable.getReader().read().then(result => {85    assert_equals(result.value, 'A',86      'result from reading the readable is the transformation of what was written to writable');87    assert_false(result.done, 'stream should not be done');88  });89}, 'Uppercaser async TransformStream: can read from readable transformed version of what is put into writable');90promise_test(() => {91  let doSecondEnqueue;92  let returnFromTransform;93  const ts = new TransformStream({94    transform(chunk, controller) {95      delay(0).then(() => controller.enqueue(chunk.toUpperCase()));96      doSecondEnqueue = () => controller.enqueue(chunk.toUpperCase());97      return new Promise(resolve => {98        returnFromTransform = resolve;99      });100    }101  });102  const reader = ts.readable.getReader();103  const writer = ts.writable.getWriter();104  writer.write('a');105  return reader.read().then(result1 => {106    assert_equals(result1.value, 'A',107      'the first chunk read is the transformation of the single chunk written');108    assert_false(result1.done, 'stream should not be done');109    doSecondEnqueue();110    return reader.read().then(result2 => {111      assert_equals(result2.value, 'A',112        'the second chunk read is also the transformation of the single chunk written');113      assert_false(result2.done, 'stream should not be done');114      returnFromTransform();115    });116  });117}, 'Uppercaser-doubler async TransformStream: can read both chunks put into the readable');118promise_test(() => {119  const ts = new TransformStream({ transform() { } });120  const writer = ts.writable.getWriter();121  writer.close();122  return Promise.all([writer.closed, ts.readable.getReader().closed]);123}, 'TransformStream: by default, closing the writable closes the readable (when there are no queued writes)');124promise_test(() => {125  let transformResolve;126  const transformPromise = new Promise(resolve => {127    transformResolve = resolve;128  });129  const ts = new TransformStream({130    transform() {131      return transformPromise;132    }133  }, undefined, { highWaterMark: 1 });134  const writer = ts.writable.getWriter();135  writer.write('a');136  writer.close();137  let rsClosed = false;138  ts.readable.getReader().closed.then(() => {139    rsClosed = true;140  });141  return delay(0).then(() => {142    assert_equals(rsClosed, false, 'readable is not closed after a tick');143    transformResolve();144    return writer.closed.then(() => {145      // TODO: Is this expectation correct?146      assert_equals(rsClosed, true, 'readable is closed at that point');147    });148  });149}, 'TransformStream: by default, closing the writable waits for transforms to finish before closing both');150promise_test(() => {151  let c;152  const ts = new TransformStream({153    start(controller) {154      c = controller;155    },156    transform() {157      c.enqueue('x');158      c.enqueue('y');159      return delay(0);160    }161  });162  const writer = ts.writable.getWriter();163  writer.write('a');164  writer.close();165  const readableChunks = readableStreamToArray(ts.readable);166  return writer.closed.then(() => {167    return readableChunks.then(chunks => {168      assert_array_equals(chunks, ['x', 'y'], 'both enqueued chunks can be read from the readable');169    });170  });171}, 'TransformStream: by default, closing the writable closes the readable after sync enqueues and async done');172promise_test(() => {173  let c;174  const ts = new TransformStream({175    start(controller) {176      c = controller;177    },178    transform() {179      return delay(0)180          .then(() => c.enqueue('x'))181          .then(() => c.enqueue('y'))182          .then(() => delay(0));183    }184  });185  const writer = ts.writable.getWriter();186  writer.write('a');187  writer.close();188  const readableChunks = readableStreamToArray(ts.readable);189  return writer.closed.then(() => {190    return readableChunks.then(chunks => {191      assert_array_equals(chunks, ['x', 'y'], 'both enqueued chunks can be read from the readable');192    });193  });194}, 'TransformStream: by default, closing the writable closes the readable after async enqueues and async done');195promise_test(() => {196  let c;197  const ts = new TransformStream({198    suffix: '-suffix',199    start(controller) {200      c = controller;201      c.enqueue('start' + this.suffix);202    },203    transform(chunk) {204      c.enqueue(chunk + this.suffix);205    },206    flush() {207      c.enqueue('flushed' + this.suffix);208    }209  });210  const writer = ts.writable.getWriter();211  writer.write('a');212  writer.close();213  const readableChunks = readableStreamToArray(ts.readable);214  return writer.closed.then(() => {215    return readableChunks.then(chunks => {216      assert_array_equals(chunks, ['start-suffix', 'a-suffix', 'flushed-suffix'], 'all enqueued chunks have suffixes');217    });218  });219}, 'Transform stream should call transformer methods as methods');220promise_test(() => {221  function functionWithOverloads() {}222  functionWithOverloads.apply = () => assert_unreached('apply() should not be called');223  functionWithOverloads.call = () => assert_unreached('call() should not be called');224  const ts = new TransformStream({225    start: functionWithOverloads,226    transform: functionWithOverloads,227    flush: functionWithOverloads228  });229  const writer = ts.writable.getWriter();230  writer.write('a');231  writer.close();232  return readableStreamToArray(ts.readable);233}, 'methods should not not have .apply() or .call() called');234promise_test(t => {235  let startCalled = false;236  let startDone = false;237  let transformDone = false;238  let flushDone = false;239  const ts = new TransformStream({240    start() {241      startCalled = true;242      return flushAsyncEvents().then(() => {243        startDone = true;244      });245    },246    transform() {247      return t.step(() => {248        assert_true(startDone, 'transform() should not be called until the promise returned from start() has resolved');249        return flushAsyncEvents().then(() => {250          transformDone = true;251        });252      });253    },254    flush() {255      return t.step(() => {256        assert_true(transformDone,257                    'flush() should not be called until the promise returned from transform() has resolved');258        return flushAsyncEvents().then(() => {259          flushDone = true;260        });261      });262    }263  }, undefined, { highWaterMark: 1 });264  assert_true(startCalled, 'start() should be called synchronously');265  const writer = ts.writable.getWriter();266  const writePromise = writer.write('a');267  return writer.close().then(() => {268    assert_true(flushDone, 'promise returned from flush() should have resolved');269    return writePromise;270  });271}, 'TransformStream start, transform, and flush should be strictly ordered');272promise_test(() => {273  let transformCalled = false;274  const ts = new TransformStream({275    transform() {276      transformCalled = true;277    }278  }, undefined, { highWaterMark: Infinity });279  // transform() is only called synchronously when there is no backpressure and all microtasks have run.280  return delay(0).then(() => {281    const writePromise = ts.writable.getWriter().write();282    assert_true(transformCalled, 'transform() should have been called');283    return writePromise;284  });285}, 'it should be possible to call transform() synchronously');286promise_test(() => {287  const ts = new TransformStream({}, undefined, { highWaterMark: 0 });288  const writer = ts.writable.getWriter();289  writer.close();290  return Promise.all([writer.closed, ts.readable.getReader().closed]);291}, 'closing the writable should close the readable when there are no queued chunks, even with backpressure');292test(() => {293  new TransformStream({294    start(controller) {295      controller.terminate();296      assert_throws_js(TypeError, () => controller.enqueue(), 'enqueue should throw');297    }298  });299}, 'enqueue() should throw after controller.terminate()');300promise_test(() => {301  let controller;302  const ts = new TransformStream({303    start(c) {304      controller = c;305    }306  });307  const cancelPromise = ts.readable.cancel();308  assert_throws_js(TypeError, () => controller.enqueue(), 'enqueue should throw');309  return cancelPromise;310}, 'enqueue() should throw after readable.cancel()');311test(() => {312  new TransformStream({313    start(controller) {314      controller.terminate();315      controller.terminate();316    }317  });318}, 'controller.terminate() should do nothing the second time it is called');319promise_test(t => {320  let controller;321  const ts = new TransformStream({322    start(c) {323      controller = c;324    }325  });326  const cancelReason = { name: 'cancelReason' };327  const cancelPromise = ts.readable.cancel(cancelReason);328  controller.terminate();329  return Promise.all([330    cancelPromise,331    promise_rejects_exactly(t, cancelReason, ts.writable.getWriter().closed, 'closed should reject with cancelReason')332  ]);333}, 'terminate() should do nothing after readable.cancel()');334promise_test(() => {335  let calls = 0;336  new TransformStream({337    start() {338      ++calls;339    }340  });341  return flushAsyncEvents().then(() => {342    assert_equals(calls, 1, 'start() should have been called exactly once');343  });344}, 'start() should not be called twice');345test(() => {346  assert_throws_js(RangeError, () => new TransformStream({ readableType: 'bytes' }), 'constructor should throw');347}, 'specifying a defined readableType should throw');348test(() => {349  assert_throws_js(RangeError, () => new TransformStream({ writableType: 'bytes' }), 'constructor should throw');350}, 'specifying a defined writableType should throw');351test(() => {352  class Subclass extends TransformStream {353    extraFunction() {354      return true;355    }356  }357  assert_equals(358      Object.getPrototypeOf(Subclass.prototype), TransformStream.prototype,359      'Subclass.prototype\'s prototype should be TransformStream.prototype');360  assert_equals(Object.getPrototypeOf(Subclass), TransformStream,361                'Subclass\'s prototype should be TransformStream');362  const sub = new Subclass();363  assert_true(sub instanceof TransformStream,364              'Subclass object should be an instance of TransformStream');365  assert_true(sub instanceof Subclass,366              'Subclass object should be an instance of Subclass');367  const readableGetter = Object.getOwnPropertyDescriptor(368      TransformStream.prototype, 'readable').get;369  assert_equals(readableGetter.call(sub), sub.readable,370                'Subclass object should pass brand check');371  assert_true(sub.extraFunction(),372              'extraFunction() should be present on Subclass object');...

Using AI Code Generation

1var wpt = require('wpt');2  if (err) {3    console.log('Error: ', err);4  } else {5    console.log('Success: ', data);6  }7});8var wpt = require('wpt');9  if (err) {10    console.log('Error: ', err);11  } else {12    console.log('Success: ', data);13  }14});15var wpt = require('wpt');16  if (err) {17    console.log('Error: ', err);18  } else {19    console.log('Success: ', data);20  }21});22var wpt = require('wpt');23  if (err) {24    console.log('Error: ', err);25  } else {26    console.log('Success: ', data);27  }28});29var wpt = require('wpt');30  if (err) {31    console.log('Error: ', err);32  } else {33    console.log('Success: ', data);34  }35});36var wpt = require('wpt');37  if (err) {38    console.log('Error: ', err);39  } else {40    console.log('Success: ', data);41  }42});43var wpt = require('wpt');44  if (err) {45    console.log('Error: ', err

Using AI Code Generation

1var wptool = require('wptool');2    if (error) {3        console.log(error);4    } else {5        console.log(readable);6    }7});8var wptool = require('wptool');9    if (error) {10        console.log(error);11    } else {12        console.log(readable);13    }14});15var wptool = require('wptool');16    if (error) {17        console.log(error);18    } else {19        console.log(readable);20    }21});22var wptool = require('wptool');23    if (error) {24        console.log(error);25    } else {26        console.log(readable);27    }28});29var wptool = require('wptool');30    if (error) {31        console.log(error);32    } else {33        console.log(readable);34    }35});36var wptool = require('wptool');37    if (error) {38        console.log(error);39    } else {40        console.log(readable);41    }42});43var wptool = require('wptool');44    if (error) {45        console.log(error);46    } else {47        console.log(readable);48    }49});

Using AI Code Generation

1const wpt = require('webpagetest');2const wpt = new WebPageTest('www.webpagetest.org', 'A.3e0e3a8f2c2d9a2a0a8b7f1e7a2f2d2f');3wpt.getTesters(function(err, data) {4  console.log(data);5});6const wpt = require('webpagetest');7const wpt = new WebPageTest('www.webpagetest.org', 'A.3e0e3a8f2c2d9a2a0a8b7f1e7a2f2d2f');8wpt.getTesters(function(err, data) {9  console.log(data);10});11const wpt = require('webpagetest');12const wpt = new WebPageTest('www.webpagetest.org', 'A.3e0e3a8f2c2d9a2a0a8b7f1e7a2f2d2f');13wpt.getTesters(function(err, data) {14  console.log(data);15});16const wpt = require('webpagetest');17const wpt = new WebPageTest('www.webpagetest.org', 'A.3e0e3a8f2c2d9a2a0a8b7f1e7a2f2d2f');18wpt.getTesters(function(err, data) {19  console.log(data);20});21const wpt = require('webpagetest');22const wpt = new WebPageTest('www.webpagetest.org', 'A.3e0e3a8f2c2d9a2a0a8b7f1e7a2f2d2f');23wpt.getTesters(function(err, data) {24  console.log(data);25});26const wpt = require('webpagetest');

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