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How to use reader2 method in wpt

Best JavaScript code snippet using wpt

tee.any.js

Source:tee.any.js

1// META: global=window,worker,jsshell2// META: script=../resources/rs-utils.js3// META: script=../resources/test-utils.js4// META: script=../resources/recording-streams.js5'use strict';6test(() => {7  const rs = new ReadableStream();8  const result = rs.tee();9  assert_true(Array.isArray(result), 'return value should be an array');10  assert_equals(result.length, 2, 'array should have length 2');11  assert_equals(result[0].constructor, ReadableStream, '0th element should be a ReadableStream');12  assert_equals(result[1].constructor, ReadableStream, '1st element should be a ReadableStream');13}, 'ReadableStream teeing: rs.tee() returns an array of two ReadableStreams');14promise_test(t => {15  const rs = new ReadableStream({16    start(c) {17      c.enqueue('a');18      c.enqueue('b');19      c.close();20    }21  });22  const branch = rs.tee();23  const branch1 = branch[0];24  const branch2 = branch[1];25  const reader1 = branch1.getReader();26  const reader2 = branch2.getReader();27  reader2.closed.then(t.unreached_func('branch2 should not be closed'));28  return Promise.all([29    reader1.closed,30    reader1.read().then(r => {31      assert_object_equals(r, { value: 'a', done: false }, 'first chunk from branch1 should be correct');32    }),33    reader1.read().then(r => {34      assert_object_equals(r, { value: 'b', done: false }, 'second chunk from branch1 should be correct');35    }),36    reader1.read().then(r => {37      assert_object_equals(r, { value: undefined, done: true }, 'third read() from branch1 should be done');38    }),39    reader2.read().then(r => {40      assert_object_equals(r, { value: 'a', done: false }, 'first chunk from branch2 should be correct');41    })42  ]);43}, 'ReadableStream teeing: should be able to read one branch to the end without affecting the other');44promise_test(() => {45  const theObject = { the: 'test object' };46  const rs = new ReadableStream({47    start(c) {48      c.enqueue(theObject);49    }50  });51  const branch = rs.tee();52  const branch1 = branch[0];53  const branch2 = branch[1];54  const reader1 = branch1.getReader();55  const reader2 = branch2.getReader();56  return Promise.all([reader1.read(), reader2.read()]).then(values => {57    assert_object_equals(values[0], values[1], 'the values should be equal');58  });59}, 'ReadableStream teeing: values should be equal across each branch');60promise_test(t => {61  const theError = { name: 'boo!' };62  const rs = new ReadableStream({63    start(c) {64      c.enqueue('a');65      c.enqueue('b');66    },67    pull() {68      throw theError;69    }70  });71  const branches = rs.tee();72  const reader1 = branches[0].getReader();73  const reader2 = branches[1].getReader();74  reader1.label = 'reader1';75  reader2.label = 'reader2';76  return Promise.all([77    promise_rejects_exactly(t, theError, reader1.closed),78    promise_rejects_exactly(t, theError, reader2.closed),79    reader1.read().then(r => {80      assert_object_equals(r, { value: 'a', done: false }, 'should be able to read the first chunk in branch1');81    }),82    reader1.read().then(r => {83      assert_object_equals(r, { value: 'b', done: false }, 'should be able to read the second chunk in branch1');84      return promise_rejects_exactly(t, theError, reader2.read());85    })86    .then(() => promise_rejects_exactly(t, theError, reader1.read()))87  ]);88}, 'ReadableStream teeing: errors in the source should propagate to both branches');89promise_test(() => {90  const rs = new ReadableStream({91    start(c) {92      c.enqueue('a');93      c.enqueue('b');94      c.close();95    }96  });97  const branches = rs.tee();98  const branch1 = branches[0];99  const branch2 = branches[1];100  branch1.cancel();101  return Promise.all([102    readableStreamToArray(branch1).then(chunks => {103      assert_array_equals(chunks, [], 'branch1 should have no chunks');104    }),105    readableStreamToArray(branch2).then(chunks => {106      assert_array_equals(chunks, ['a', 'b'], 'branch2 should have two chunks');107    })108  ]);109}, 'ReadableStream teeing: canceling branch1 should not impact branch2');110promise_test(() => {111  const rs = new ReadableStream({112    start(c) {113      c.enqueue('a');114      c.enqueue('b');115      c.close();116    }117  });118  const branches = rs.tee();119  const branch1 = branches[0];120  const branch2 = branches[1];121  branch2.cancel();122  return Promise.all([123    readableStreamToArray(branch1).then(chunks => {124      assert_array_equals(chunks, ['a', 'b'], 'branch1 should have two chunks');125    }),126    readableStreamToArray(branch2).then(chunks => {127      assert_array_equals(chunks, [], 'branch2 should have no chunks');128    })129  ]);130}, 'ReadableStream teeing: canceling branch2 should not impact branch1');131promise_test(() => {132  const reason1 = new Error('We\'re wanted men.');133  const reason2 = new Error('I have the death sentence on twelve systems.');134  let resolve;135  const promise = new Promise(r => resolve = r);136  const rs = new ReadableStream({137    cancel(reason) {138      assert_array_equals(reason, [reason1, reason2],139                          'the cancel reason should be an array containing those from the branches');140      resolve();141    }142  });143  const branch = rs.tee();144  const branch1 = branch[0];145  const branch2 = branch[1];146  branch1.cancel(reason1);147  branch2.cancel(reason2);148  return promise;149}, 'ReadableStream teeing: canceling both branches should aggregate the cancel reasons into an array');150promise_test(() => {151  const reason1 = new Error('This little one\'s not worth the effort.');152  const reason2 = new Error('Come, let me get you something.');153  let resolve;154  const promise = new Promise(r => resolve = r);155  const rs = new ReadableStream({156    cancel(reason) {157      assert_array_equals(reason, [reason1, reason2],158                          'the cancel reason should be an array containing those from the branches');159      resolve();160    }161  });162  const branch = rs.tee();163  const branch1 = branch[0];164  const branch2 = branch[1];165  return Promise.all([166    branch2.cancel(reason2),167    branch1.cancel(reason1),168    promise169  ]);170}, 'ReadableStream teeing: canceling both branches in reverse order should aggregate the cancel reasons into an array');171promise_test(t => {172  const theError = { name: 'I\'ll be careful.' };173  const rs = new ReadableStream({174    cancel() {175      throw theError;176    }177  });178  const branch = rs.tee();179  const branch1 = branch[0];180  const branch2 = branch[1];181  return Promise.all([182    promise_rejects_exactly(t, theError, branch1.cancel()),183    promise_rejects_exactly(t, theError, branch2.cancel())184  ]);185}, 'ReadableStream teeing: failing to cancel the original stream should cause cancel() to reject on branches');186test(() => {187  let controller;188  const stream = new ReadableStream({ start(c) { controller = c; } });189  const [branch1, branch2] = stream.tee();190  controller.error("error");191  branch1.cancel().catch(_=>_);192  branch2.cancel().catch(_=>_);193}, 'ReadableStream teeing: erroring a teed stream should properly handle canceled branches');194promise_test(t => {195  let controller;196  const stream = new ReadableStream({ start(c) { controller = c; } });197  const [branch1, branch2] = stream.tee();198  const error = new Error();199  error.name = 'distinctive';200  // Ensure neither branch is waiting in ReadableStreamDefaultReaderRead().201  controller.enqueue();202  controller.enqueue();203  return delay(0).then(() => {204    // This error will have to be detected via [[closedPromise]].205    controller.error(error);206    const reader1 = branch1.getReader();207    const reader2 = branch2.getReader();208    return Promise.all([209      promise_rejects_exactly(t, error, reader1.closed, 'reader1.closed should reject'),210      promise_rejects_exactly(t, error, reader2.closed, 'reader2.closed should reject')211    ]);212  });213}, 'ReadableStream teeing: erroring a teed stream should error both branches');214promise_test(() => {215  let controller;216  const rs = new ReadableStream({217    start(c) {218      controller = c;219    }220  });221  const branches = rs.tee();222  const reader1 = branches[0].getReader();223  const reader2 = branches[1].getReader();224  const promise = Promise.all([reader1.closed, reader2.closed]);225  controller.close();226  return promise;227}, 'ReadableStream teeing: closing the original should immediately close the branches');228promise_test(t => {229  let controller;230  const rs = new ReadableStream({231    start(c) {232      controller = c;233    }234  });235  const branches = rs.tee();236  const reader1 = branches[0].getReader();237  const reader2 = branches[1].getReader();238  const theError = { name: 'boo!' };239  const promise = Promise.all([240    promise_rejects_exactly(t, theError, reader1.closed),241    promise_rejects_exactly(t, theError, reader2.closed)242  ]);243  controller.error(theError);244  return promise;245}, 'ReadableStream teeing: erroring the original should immediately error the branches');246promise_test(async t => {247  let controller;248  const rs = new ReadableStream({249    start(c) {250      controller = c;251    }252  });253  const [reader1, reader2] = rs.tee().map(branch => branch.getReader());254  const cancelPromise = reader2.cancel();255  controller.enqueue('a');256  const read1 = await reader1.read();257  assert_object_equals(read1, { value: 'a', done: false }, 'first read() from branch1 should fulfill with the chunk');258  controller.close();259  const read2 = await reader1.read();260  assert_object_equals(read2, { value: undefined, done: true }, 'second read() from branch1 should be done');261  await Promise.all([262    reader1.closed,263    cancelPromise264  ]);265}, 'ReadableStream teeing: canceling branch1 should finish when branch2 reads until end of stream');266promise_test(async t => {267  let controller;268  const theError = { name: 'boo!' };269  const rs = new ReadableStream({270    start(c) {271      controller = c;272    }273  });274  const [reader1, reader2] = rs.tee().map(branch => branch.getReader());275  const cancelPromise = reader2.cancel();276  controller.error(theError);277  await Promise.all([278    promise_rejects_exactly(t, theError, reader1.read()),279    cancelPromise280  ]);281}, 'ReadableStream teeing: canceling branch1 should finish when original stream errors');282test(t => {283  // Copy original global.284  const oldReadableStream = ReadableStream;285  const getReader = ReadableStream.prototype.getReader;286  const origRS = new ReadableStream();287  // Replace the global ReadableStream constructor with one that doesn't work.288  ReadableStream = function() {289    throw new Error('global ReadableStream constructor called');290  };291  t.add_cleanup(() => {292    ReadableStream = oldReadableStream;293  });294  // This will probably fail if the global ReadableStream constructor was used.295  const [rs1, rs2] = origRS.tee();296  // These will definitely fail if the global ReadableStream constructor was used.297  assert_not_equals(getReader.call(rs1), undefined, 'getReader should work on rs1');298  assert_not_equals(getReader.call(rs2), undefined, 'getReader should work on rs2');299}, 'ReadableStreamTee should not use a modified ReadableStream constructor from the global object');300promise_test(t => {301  const rs = recordingReadableStream({}, { highWaterMark: 0 });302  // Create two branches, each with a HWM of 1. This should result in one303  // chunk being pulled, not two.304  rs.tee();305  return flushAsyncEvents().then(() => {306    assert_array_equals(rs.events, ['pull'], 'pull should only be called once');307  });308}, 'ReadableStreamTee should not pull more chunks than can fit in the branch queue');309promise_test(t => {310  const rs = recordingReadableStream({311    pull(controller) {312      controller.enqueue('a');313    }314  }, { highWaterMark: 0 });315  const [reader1, reader2] = rs.tee().map(branch => branch.getReader());316  return Promise.all([reader1.read(), reader2.read()])317      .then(() => {318    assert_array_equals(rs.events, ['pull', 'pull'], 'pull should be called twice');319  });320}, 'ReadableStreamTee should only pull enough to fill the emptiest queue');321promise_test(t => {322  const rs = recordingReadableStream({}, { highWaterMark: 0 });323  const theError = { name: 'boo!' };324  rs.controller.error(theError);325  const [reader1, reader2] = rs.tee().map(branch => branch.getReader());326  return flushAsyncEvents().then(() => {327    assert_array_equals(rs.events, [], 'pull should not be called');328    return Promise.all([329      promise_rejects_exactly(t, theError, reader1.closed),330      promise_rejects_exactly(t, theError, reader2.closed)331    ]);332  });333}, 'ReadableStreamTee should not pull when original is already errored');334for (const branch of [1, 2]) {335  promise_test(t => {336    const rs = recordingReadableStream({}, { highWaterMark: 0 });337    const theError = { name: 'boo!' };338    const [reader1, reader2] = rs.tee().map(branch => branch.getReader());339    return flushAsyncEvents().then(() => {340      assert_array_equals(rs.events, ['pull'], 'pull should be called once');341      rs.controller.enqueue('a');342      const reader = (branch === 1) ? reader1 : reader2;343      return reader.read();344    }).then(() => flushAsyncEvents()).then(() => {345      assert_array_equals(rs.events, ['pull', 'pull'], 'pull should be called twice');346      rs.controller.error(theError);347      return Promise.all([348        promise_rejects_exactly(t, theError, reader1.closed),349        promise_rejects_exactly(t, theError, reader2.closed)350      ]);351    }).then(() => flushAsyncEvents()).then(() => {352      assert_array_equals(rs.events, ['pull', 'pull'], 'pull should be called twice');353    });354  }, `ReadableStreamTee stops pulling when original stream errors while branch ${branch} is reading`);355}356promise_test(t => {357  const rs = recordingReadableStream({}, { highWaterMark: 0 });358  const theError = { name: 'boo!' };359  const [reader1, reader2] = rs.tee().map(branch => branch.getReader());360  return flushAsyncEvents().then(() => {361    assert_array_equals(rs.events, ['pull'], 'pull should be called once');362    rs.controller.enqueue('a');363    return Promise.all([reader1.read(), reader2.read()]);364  }).then(() => flushAsyncEvents()).then(() => {365    assert_array_equals(rs.events, ['pull', 'pull'], 'pull should be called twice');366    rs.controller.error(theError);367    return Promise.all([368      promise_rejects_exactly(t, theError, reader1.closed),369      promise_rejects_exactly(t, theError, reader2.closed)370    ]);371  }).then(() => flushAsyncEvents()).then(() => {372    assert_array_equals(rs.events, ['pull', 'pull'], 'pull should be called twice');373  });...

Using AI Code Generation

1var wptools = require('wptools');2var reader2 = wptools.reader2;3var wptools = require('wptools');4var reader2 = wptools.reader2;5var wptools = require('wptools');6var reader2 = wptools.reader2;7var wptools = require('wptools');8var reader2 = wptools.reader2;9var wptools = require('wptools');10var reader2 = wptools.reader2;11var wptools = require('wptools');

Using AI Code Generation

1var wptools = require('wptools');2wptools.page('Barack Obama').then(function(page) {3    page.reader2().then(function(result) {4        console.log(result);5    });6});7var wptools = require('wptools');8wptools.page('Barack Obama').then(function(page) {9    page.infobox().then(function(result) {10        console.log(result);11    });12});13var wptools = require('wptools');14wptools.page('Barack Obama').then(function(page) {15    page.categories().then(function(result) {16        console.log(result);17    });18});19var wptools = require('wptools');20wptools.page('Barack Obama').then(function(page) {21    page.coordinates().then(function(result) {22        console.log(result);23    });24});25var wptools = require('wptools');26wptools.page('Barack Obama').then(function(page) {27    page.images().then(function(result) {28        console.log(result);29    });30});31var wptools = require('wptools');32wptools.page('Barack Obama').then(function(page) {33    page.data().then(function(result) {34        console.log(result);35    });36});37var wptools = require('wptools');38wptools.page('Barack Obama').then(function(page) {39    page.raw().then(function(result) {

Using AI Code Generation

1var reader2 = require('wptoolkit').reader2;2var reader = new reader2();3reader.read('test.txt', function (err, data) {4    if (err) {5        console.log(err);6    } else {7        console.log(data);8    }9});10var reader = require('wptoolkit').reader;11reader.read('test.txt', function (err, data) {12    if (err) {13        console.log(err);14    } else {15        console.log(data);16    }17});18var writer2 = require('wptoolkit').writer2;19var writer = new writer2();20writer.write('test.txt', 'test file', function (err) {21    if (err) {22        console.log(err);23    } else {24        console.log('done');25    }26});27var writer = require('wptoolkit').writer;28writer.write('test.txt', 'test file', function (err) {29    if (err) {30        console.log(err);31    } else {32        console.log('done');33    }34});35var file2 = require('wptoolkit').file2;36var file = new file2();37file.read('test.txt', function (err, data) {38    if (err) {39        console.log(err);40    } else {41        console.log(data);42    }43});44file.write('test.txt', 'test file', function (err) {45    if (err) {46        console.log(err);47    } else {48        console.log('done');49    }50});51var file = require('wptoolkit').file;52file.read('test.txt', function (err, data) {53    if (err) {54        console.log(err);55    } else {

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var _ = require('underscore');4var data = fs.readFileSync('data.json');5var json = JSON.parse(data);6var links = _.pluck(json, 'link');7var titles = _.pluck(json, 'title');8var i = 0;9var j = 0;10var k = 0;11var l = 0;12var m = 0;13var n = 0;14var o = 0;15var count = 0;16var link1 = links[0];17var link2 = links[1];18var link3 = links[2];19var link4 = links[3];20var link5 = links[4];21var link6 = links[5];22var link7 = links[6];23var link8 = links[7];24var link9 = links[8];25var link10 = links[9];26var link11 = links[10];27var link12 = links[11];28var link13 = links[12];29var link14 = links[13];30var link15 = links[14];31var link16 = links[15];32var link17 = links[16];33var link18 = links[17];34var link19 = links[18];35var link20 = links[19];36var link21 = links[20];37var link22 = links[21];38var link23 = links[22];39var link24 = links[23];40var link25 = links[24];41var link26 = links[25];42var link27 = links[26];43var link28 = links[27];44var link29 = links[28];45var link30 = links[29];46var link31 = links[30];47var link32 = links[31];48var link33 = links[32];49var link34 = links[33];50var link35 = links[34];51var link36 = links[35];52var link37 = links[36];53var link38 = links[37];54var link39 = links[38];55var link40 = links[39];56var link41 = links[40];57var link42 = links[41];58var link43 = links[42];59var link44 = links[43];60var link45 = links[44];61var link46 = links[45];62var link47 = links[46];

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