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How to use shmemView method in wpt

Best JavaScript code snippet using wpt

generic_sensor_mocks.js

Source:generic_sensor_mocks.js

1import {ReportingMode, Sensor, SensorClientRemote, SensorReceiver, SensorRemote, SensorType} from '/gen/services/device/public/mojom/sensor.mojom.m.js';2import {SensorCreationResult, SensorInitParams_READ_BUFFER_SIZE_FOR_TESTS, SensorProvider, SensorProviderReceiver} from '/gen/services/device/public/mojom/sensor_provider.mojom.m.js';3// A "sliding window" that iterates over |data| and returns one item at a4// time, advancing and wrapping around as needed. |data| must be an array of5// arrays.6self.RingBuffer = class {7  constructor(data) {8    this.bufferPosition_ = 0;9    // Validate |data|'s format and deep-copy every element.10    this.data_ = Array.from(data, element => {11      if (!Array.isArray(element)) {12        throw new TypeError('Every |data| element must be an array.');13      }14      return Array.from(element);15    })16  }17  next() {18    const value = this.data_[this.bufferPosition_];19    this.bufferPosition_ = (this.bufferPosition_ + 1) % this.data_.length;20    return { done: false, value: value };21  }22  value() {23    return this.data_[this.bufferPosition_];24  }25  [Symbol.iterator]() {26    return this;27  }28};29self.GenericSensorTest = (() => {30  // Default sensor frequency in default configurations.31  const DEFAULT_FREQUENCY = 5;32  // Class that mocks Sensor interface defined in33  // https://cs.chromium.org/chromium/src/services/device/public/mojom/sensor.mojom34  class MockSensor {35    constructor(sensorRequest, buffer, reportingMode) {36      this.client_ = null;37      this.startShouldFail_ = false;38      this.notifyOnReadingChange_ = true;39      this.reportingMode_ = reportingMode;40      this.sensorReadingTimerId_ = null;41      this.readingData_ = null;42      this.requestedFrequencies_ = [];43      // The Blink implementation (third_party/blink/renderer/modules/sensor/sensor.cc)44      // sets a timestamp by creating a DOMHighResTimeStamp from a given platform timestamp.45      // In this mock implementation we use a starting value46      // and an increment step value that resemble a platform timestamp reasonably enough.47      this.timestamp_ = window.performance.timeOrigin;48      this.buffer_ = buffer;49      this.buffer_.fill(0);50      this.receiver_ = new SensorReceiver(this);51      this.receiver_.$.bindHandle(sensorRequest.handle);52    }53    // Returns default configuration.54    async getDefaultConfiguration() {55      return { frequency: DEFAULT_FREQUENCY };56    }57    // Adds configuration for the sensor and starts reporting fake data58    // through setSensorReading function.59    async addConfiguration(configuration) {60      this.requestedFrequencies_.push(configuration.frequency);61      // Sort using descending order.62      this.requestedFrequencies_.sort(63          (first, second) => { return second - first });64      if (!this.startShouldFail_ )65        this.startReading();66      return { success: !this.startShouldFail_ };67    }68    // Removes sensor configuration from the list of active configurations and69    // stops notification about sensor reading changes if70    // requestedFrequencies_ is empty.71    removeConfiguration(configuration) {72      const index = this.requestedFrequencies_.indexOf(configuration.frequency);73      if (index == -1)74        return;75      this.requestedFrequencies_.splice(index, 1);76      if (this.requestedFrequencies_.length === 0)77        this.stopReading();78    }79    // ConfigureReadingChangeNotifications(bool enabled)80    // Configures whether to report a reading change when in ON_CHANGE81    // reporting mode.82    configureReadingChangeNotifications(notifyOnReadingChange) {83      this.notifyOnReadingChange_ = notifyOnReadingChange;84    }85    resume() {86      this.startReading();87    }88    suspend() {89      this.stopReading();90    }91    // Mock functions92    // Resets mock Sensor state.93    reset() {94      this.stopReading();95      this.startShouldFail_ = false;96      this.requestedFrequencies_ = [];97      this.notifyOnReadingChange_ = true;98      this.readingData_ = null;99      this.buffer_.fill(0);100      this.receiver_.$.close();101    }102    // Sets fake data that is used to deliver sensor reading updates.103    async setSensorReading(readingData) {104      this.readingData_ = new RingBuffer(readingData);105      return this;106    }107    // This is a workaround to accommodate Blink's Device Orientation108    // implementation. In general, all tests should use setSensorReading()109    // instead.110    setSensorReadingImmediately(readingData) {111      this.setSensorReading(readingData);112      const reading = this.readingData_.value();113      this.buffer_.set(reading, 2);114      this.buffer_[1] = this.timestamp_++;115    }116    // Sets flag that forces sensor to fail when addConfiguration is invoked.117    setStartShouldFail(shouldFail) {118      this.startShouldFail_ = shouldFail;119    }120    startReading() {121      if (this.readingData_ != null) {122        this.stopReading();123      }124      let maxFrequencyUsed = this.requestedFrequencies_[0];125      let timeout = (1 / maxFrequencyUsed) * 1000;126      this.sensorReadingTimerId_ = window.setInterval(() => {127        if (this.readingData_) {128          // |buffer_| is a TypedArray, so we need to make sure pass an129          // array to set().130          const reading = this.readingData_.next().value;131          if (!Array.isArray(reading)) {132            throw new TypeError("startReading(): The readings passed to " +133              "setSensorReading() must be arrays");134          }135          this.buffer_.set(reading, 2);136        }137        // For all tests sensor reading should have monotonically138        // increasing timestamp.139        this.buffer_[1] = this.timestamp_++;140        if (this.reportingMode_ === ReportingMode.ON_CHANGE &&141            this.notifyOnReadingChange_) {142          this.client_.sensorReadingChanged();143        }144      }, timeout);145    }146    stopReading() {147      if (this.sensorReadingTimerId_ != null) {148        window.clearInterval(this.sensorReadingTimerId_);149        this.sensorReadingTimerId_ = null;150      }151    }152    getSamplingFrequency() {153      if (this.requestedFrequencies_.length == 0) {154        throw new Error("getSamplingFrequency(): No configured frequency");155      }156       return this.requestedFrequencies_[0];157    }158    isReadingData() {159      return this.sensorReadingTimerId_ != null;160    }161  }162  // Class that mocks SensorProvider interface defined in163  // https://cs.chromium.org/chromium/src/services/device/public/mojom/sensor_provider.mojom164  class MockSensorProvider {165    constructor() {166      this.readingSizeInBytes_ =167          Number(SensorInitParams_READ_BUFFER_SIZE_FOR_TESTS);168      this.sharedBufferSizeInBytes_ =169          this.readingSizeInBytes_ * (SensorType.MAX_VALUE + 1);170      let rv = Mojo.createSharedBuffer(this.sharedBufferSizeInBytes_);171      if (rv.result != Mojo.RESULT_OK) {172        throw new Error('MockSensorProvider: Failed to create shared buffer');173      }174      const handle = rv.handle;175      rv = handle.mapBuffer(0, this.sharedBufferSizeInBytes_);176      if (rv.result != Mojo.RESULT_OK) {177        throw new Error("MockSensorProvider: Failed to map shared buffer");178      }179      this.shmemArrayBuffer_ = rv.buffer;180      rv = handle.duplicateBufferHandle({readOnly: true});181      if (rv.result != Mojo.RESULT_OK) {182        throw new Error(183            'MockSensorProvider: failed to duplicate shared buffer');184      }185      this.readOnlySharedBufferHandle_ = rv.handle;186      this.activeSensors_ = new Map();187      this.resolveFuncs_ = new Map();188      this.getSensorShouldFail_ = new Map();189      this.permissionsDenied_ = new Map();190      this.maxFrequency_ = 60;191      this.minFrequency_ = 1;192      this.mojomSensorType_ = new Map([193        ['Accelerometer', SensorType.ACCELEROMETER],194        ['LinearAccelerationSensor', SensorType.LINEAR_ACCELERATION],195        ['GravitySensor', SensorType.GRAVITY],196        ['AmbientLightSensor', SensorType.AMBIENT_LIGHT],197        ['Gyroscope', SensorType.GYROSCOPE],198        ['Magnetometer', SensorType.MAGNETOMETER],199        ['AbsoluteOrientationSensor',200            SensorType.ABSOLUTE_ORIENTATION_QUATERNION],201        ['AbsoluteOrientationEulerAngles',202            SensorType.ABSOLUTE_ORIENTATION_EULER_ANGLES],203        ['RelativeOrientationSensor',204            SensorType.RELATIVE_ORIENTATION_QUATERNION],205        ['RelativeOrientationEulerAngles',206            SensorType.RELATIVE_ORIENTATION_EULER_ANGLES],207        ['ProximitySensor', SensorType.PROXIMITY]208      ]);209      this.receiver_ = new SensorProviderReceiver(this);210      this.interceptor_ =211          new MojoInterfaceInterceptor(SensorProvider.$interfaceName);212      this.interceptor_.oninterfacerequest = e => {213        this.bindToPipe(e.handle);214      };215      this.interceptor_.start();216    }217    // Returns initialized Sensor proxy to the client.218    async getSensor(type) {219      if (this.getSensorShouldFail_.get(type)) {220        return {result: SensorCreationResult.ERROR_NOT_AVAILABLE,221                initParams: null};222      }223      if (this.permissionsDenied_.get(type)) {224        return {result: SensorCreationResult.ERROR_NOT_ALLOWED,225                initParams: null};226      }227      const offset = type * this.readingSizeInBytes_;228      const reportingMode = ReportingMode.ON_CHANGE;229      const sensor = new SensorRemote();230      if (!this.activeSensors_.has(type)) {231        const shmemView = new Float64Array(232            this.shmemArrayBuffer_, offset,233            this.readingSizeInBytes_ / Float64Array.BYTES_PER_ELEMENT);234        const mockSensor = new MockSensor(235            sensor.$.bindNewPipeAndPassReceiver(), shmemView, reportingMode);236        this.activeSensors_.set(type, mockSensor);237        this.activeSensors_.get(type).client_ = new SensorClientRemote();238      }239      const rv = this.readOnlySharedBufferHandle_.duplicateBufferHandle(240          {readOnly: true});241      if (rv.result != Mojo.RESULT_OK) {242        throw new Error('getSensor(): failed to duplicate shared buffer');243      }244      const defaultConfig = { frequency: DEFAULT_FREQUENCY };245      // Consider sensor traits to meet assertions in C++ code (see246      // services/device/public/cpp/generic_sensor/sensor_traits.h)247      if (type == SensorType.AMBIENT_LIGHT || type == SensorType.MAGNETOMETER) {248        this.maxFrequency_ = Math.min(10, this.maxFrequency_);249      }250      // Chromium applies some rounding and other privacy-related measures that251      // can cause ALS not to report a reading when it has not changed beyond a252      // certain threshold compared to the previous illuminance value. Make253      // each reading return a different value that is significantly different254      // from the previous one when setSensorReading() is not called by client255      // code (e.g. run_generic_sensor_iframe_tests()).256      if (type == SensorType.AMBIENT_LIGHT) {257        this.activeSensors_.get(type).setSensorReading([258          [window.performance.now() * 100],259          [(window.performance.now() + 50) * 100]260        ]);261      }262      const client = this.activeSensors_.get(type).client_;263      const initParams = {264        sensor,265        clientReceiver: client.$.bindNewPipeAndPassReceiver(),266        memory: {buffer: rv.handle},267        bufferOffset: BigInt(offset),268        mode: reportingMode,269        defaultConfiguration: defaultConfig,270        minimumFrequency: this.minFrequency_,271        maximumFrequency: this.maxFrequency_272      };273      if (this.resolveFuncs_.has(type)) {274        for (let resolveFunc of this.resolveFuncs_.get(type)) {275          resolveFunc(this.activeSensors_.get(type));276        }277        this.resolveFuncs_.delete(type);278      }279      return {result: SensorCreationResult.SUCCESS, initParams};280    }281    // Binds object to mojo message pipe282    bindToPipe(pipe) {283      this.receiver_.$.bindHandle(pipe);284    }285    // Mock functions286    // Resets state of mock SensorProvider between test runs.287    reset() {288      for (const sensor of this.activeSensors_.values()) {289        sensor.reset();290      }291      this.activeSensors_.clear();292      this.resolveFuncs_.clear();293      this.getSensorShouldFail_.clear();294      this.permissionsDenied_.clear();295      this.maxFrequency_ = 60;296      this.minFrequency_ = 1;297      this.receiver_.$.close();298      this.interceptor_.stop();299    }300    // Sets flag that forces mock SensorProvider to fail when getSensor() is301    // invoked.302    setGetSensorShouldFail(sensorType, shouldFail) {303      this.getSensorShouldFail_.set(this.mojomSensorType_.get(sensorType),304          shouldFail);305    }306    setPermissionsDenied(sensorType, permissionsDenied) {307      this.permissionsDenied_.set(this.mojomSensorType_.get(sensorType),308          permissionsDenied);309    }310    // Returns mock sensor that was created in getSensor to the layout test.311    getCreatedSensor(sensorType) {312      const type = this.mojomSensorType_.get(sensorType);313      if (typeof type != "number") {314        throw new TypeError(`getCreatedSensor(): Invalid sensor type ${sensorType}`);315      }316      if (this.activeSensors_.has(type)) {317        return Promise.resolve(this.activeSensors_.get(type));318      }319      return new Promise(resolve => {320        if (!this.resolveFuncs_.has(type)) {321          this.resolveFuncs_.set(type, []);322        }323        this.resolveFuncs_.get(type).push(resolve);324      });325    }326    // Sets the maximum frequency for a concrete sensor.327    setMaximumSupportedFrequency(frequency) {328      this.maxFrequency_ = frequency;329    }330    // Sets the minimum frequency for a concrete sensor.331    setMinimumSupportedFrequency(frequency) {332      this.minFrequency_ = frequency;333    }334  }335  let testInternal = {336    initialized: false,337    sensorProvider: null338  }339  class GenericSensorTestChromium {340    constructor() {341      Object.freeze(this); // Make it immutable.342    }343    async initialize() {344      if (testInternal.initialized)345        throw new Error('Call reset() before initialize().');346      // Grant sensor permissions for Chromium testdriver.347      // testdriver.js only works in the top-level browsing context, so do348      // nothing if we're in e.g. an iframe.349      if (window.parent === window) {350        for (const entry351                 of ['accelerometer', 'gyroscope', 'magnetometer',352                     'ambient-light-sensor']) {353          await test_driver.set_permission({name: entry}, 'granted', false);354        }355      }356      testInternal.sensorProvider = new MockSensorProvider;357      testInternal.initialized = true;358    }359    // Resets state of sensor mocks between test runs.360    async reset() {361      if (!testInternal.initialized)362        throw new Error('Call initialize() before reset().');363      testInternal.sensorProvider.reset();364      testInternal.sensorProvider = null;365      testInternal.initialized = false;366      // Wait for an event loop iteration to let any pending mojo commands in367      // the sensor provider finish.368      await new Promise(resolve => setTimeout(resolve, 0));369    }370    getSensorProvider() {371      return testInternal.sensorProvider;372    }373  }374  return GenericSensorTestChromium;...

Using AI Code Generation

1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3var options = {4};5  if (err) return console.error(err);6  console.log(data);7});8var WebPageTest = require('webpagetest');9var wpt = new WebPageTest('www.webpagetest.org');10var options = {11};12  if (err) return console.error(err);13  console.log(data);14});15var WebPageTest = require('webpagetest');16var wpt = new WebPageTest('www.webpagetest.org');17var options = {18};19  if (err) return console.error(err);20  console.log(data);21});22var WebPageTest = require('webpagetest');

Using AI Code Generation

1var wptools = require('wptools');2var shmemView = wptools.shmemView;3var wptools = require('wptools');4var shmemView = wptools.shmemView;5var wptools = require('wptools');6var shmemView = wptools.shmemView;7var wptools = require('wptools');8var shmemView = wptools.shmemView;9var wptools = require('wptools');10var shmemView = wptools.shmemView;11var wptools = require('wptools');12var shmemView = wptools.shmemView;13var wptools = require('wptools');14var shmemView = wptools.shmemView;15var wptools = require('wptools');16var shmemView = wptools.shmemView;17var wptools = require('wptools');18var shmemView = wptools.shmemView;19var wptools = require('wptools');20var shmemView = wptools.shmemView;21var wptools = require('wptools');22var shmemView = wptools.shmemView;

Using AI Code Generation

1var wptools = require('wptools');2var shmemView = wptools.shmemView;3console.log(shmem);4shmem.on('ready', function () {5    console.log('ready');6    console.log(shmem);7    console.log(shmem.get('title'));8    console.log(shmem.get('links'));9    console.log(shmem.get('links').length);10    shmem.close();11});12var wptools = require('wptools');13var shmemView = wptools.shmemView;14shmem.on('ready', function () {15    console.log('ready');16    shmem.close();17});18    at errnoException (child_process.js:988:11)19    at Process.ChildProcess._handle.onexit (child_process.js:779:34)

Using AI Code Generation

1var wptools = require('wptools');2var shmemView = wptools.shmemView;3view.on('ready', function() {4    console.log(view.plainText());5    view.close();6});

Using AI Code Generation

1var wptDriver = require('wptdriver');2var shmemView = wptDriver.shmemView;3var shmem = shmemView(0, 100);4var wptDriver = require('wptdriver');5var shmemView = wptDriver.shmemView;6var shmem = shmemView(0, 100);7var wptDriver = require('wptdriver');8var shmemView = wptDriver.shmemView;9var shmem = shmemView(0, 100);10var wptDriver = require('wptdriver');11var shmemView = wptDriver.shmemView;12var shmem = shmemView(0, 100);13var wptDriver = require('wptdriver');14var shmemView = wptDriver.shmemView;15var shmem = shmemView(0, 100);16var wptDriver = require('wptdriver');17var shmemView = wptDriver.shmemView;18var shmem = shmemView(0, 100);19var wptDriver = require('wptdriver');20var shmemView = wptDriver.shmemView;21var shmem = shmemView(0, 100);22var wptDriver = require('wptdriver');23var shmemView = wptDriver.shmemView;24var shmem = shmemView(0, 100);25var wptDriver = require('wptdriver');26var shmemView = wptDriver.shmemView;27var shmem = shmemView(0, 100);28var wptDriver = require('wptdriver');29var shmemView = wptDriver.shmemView;30var shmem = shmemView(0, 100);31var wptDriver = require('

Using AI Code Generation

1var wptools = require("wptools");2var shmemView = wptools.shmemView;3var view = shmemView(3, 2, "int32");4view.set(0, 0, 1);5view.set(0, 1, 2);6view.set(1, 0, 3);7view.set(1, 1, 4);8view.set(2, 0, 5);9view.set(2, 1, 6);10console.log(view.get(0, 1));11console.log(view.get(1, 0));12console.log(view.get(2, 1));13console.log(view.get(2, 2));14console.log(view.get(3, 0));15console.log(view.get(3, 3));16console.log(view.get(0, 0));17console.log(view.get(0, 2));18console.log(view.get(2, 0));19console.log(view.get(2, 2));20view.set(2, 2, 7);21console.log(view.get(2,

Using AI Code Generation

1var wptext = require('wptext');2var view = wptext.shmemView(0, 10);3view.write("Hello World");4view.write("Hello World", 1);5view.write("Hello World", 2);6view.write("Hello World", 3);7view.write("Hello World", 4);8view.write("Hello World", 5);9view.write("Hello World", 6);10view.write("Hello World", 7);11view.write("Hello World", 8);12view.write("Hello World", 9);13var wptext = require('wptext');14var view = wptext.shmemView(0, 10);15var data = view.read();16console.log(data);

Using AI Code Generation

1var wptb = require('wptb');2var shmem = wptb.shmemView(10, 'int32');3shmem[0] = 1;4shmem[1] = 2;5shmem[2] = 3;6shmem[3] = 4;7shmem[4] = 5;8shmem[5] = 6;9shmem[6] = 7;10shmem[7] = 8;11shmem[8] = 9;12shmem[9] = 10;13console.log(shmem);14shmem.close();15var shmem2 = wptb.WPTBShmemView.from(shmem);16console.log(shmem2);17shmem2.close();18var shmem3 = wptb.WPTBShmemView.get(shmem.name);19console.log(shmem3);20shmem3.close();21console.log(wptb.WPTBShmemView.exists(shmem.name));22console.log(wptb.WPTBShmemView.exists('doesnotexist'));23wptb.WPTBShmemView.remove(shmem.name);24console.log(wptb.WPTBShmemView.exists(shmem.name));

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