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How to use fs.promises.stat method in ava

Best JavaScript code snippet using ava

get-tld.tests.js

Source:get-tld.tests.js

1const proxyquire = require('proxyquire');2const sinon = require('sinon');3const chai = require('chai');4const { EventEmitter } = require('events');5const { PassThrough: PassThroughStream } = require('stream');6chai.use(require('sinon-chai'));7const expect = chai.expect;8describe('getTLD', function () {9  this.timeout(5000);10  beforeEach(setup);11  let PublicSuffixData;12  let fs, request;13  it('defaults the cache file location to USERPROFILE if that variable exists', async function () {14    process.env.USERPROFILE = 'userProfilePath';15    const data = new PublicSuffixData();16    await data.getTLD('somedomain.com');17    expect(fs.promises.stat).to.have.been.calledWithMatch(sinon.match(function (path) {18      return path.indexOf('userProfilePath') >= 0;19    }));20  });21  it('defaults the cache file location to HOME if that variable exists', function () {22    delete process.env.USERPROFILE;23    process.env.HOME = 'userHomeDir';24    const data = new PublicSuffixData();25    return data.getTLD('somedomain.com')26      .then(function () {27        expect(fs.promises.stat).to.have.been.calledWithMatch(sinon.match(function (path) {28          return path.indexOf('userHomeDir') >= 0;29        }));30      });31  });32  it('retrieves the list from the Internet if the cached file does not exist', function () {33    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).rejects({ code: 'ENOENT' });34    const data = new PublicSuffixData();35    return data.getTLD('somedomain.com')36      .then(function () {37        expect(request).to.have.been.calledWith('https://publicsuffix.org/list/effective_tld_names.dat');38      });39  });40  it('yields an error if there is no cached data and data retrieval fails', async function () {41    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).rejects({ code: 'ENOENT' });42    request.returns(createMockErrorStream());43    const data = new PublicSuffixData();44    let caughtError;45    try {46      await data.getTLD('somedomain.com');47    } catch (err) {48      caughtError = err;49    }50    51    expect(caughtError).to.exist;52  });53  it('retrieves the list from the Internet if the cached file exceeds the time-to-stale setting', function () {54    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).resolves({ mtime: new Date(Date.now() - 1296000000) });55    const data = new PublicSuffixData();56    return data.getTLD('somedomain.com')57      .then(function () {58        expect(request).to.have.been.calledWith('https://publicsuffix.org/list/effective_tld_names.dat');59      });60  });61  it('does not yield an error if there is stale but not expired cached data in memory and data retrieval fails', async function () {62    const data = new PublicSuffixData({ tts: 0.005, ttl: 1 });63    await data.getTLD('somedomain.com');64    fs.promises.stat.rejects({ code: 'ENOENT' });65    fs.promises.readFile.rejects({ code: 'ENOENT' });66    await delay(10);67    fs.promises.stat.rejects({ code: 'ENOENT' });68    request.returns(createMockErrorStream());69    await data.getTLD('somedomain.com');70  });71  it('does not yield an error if there is stale but not expired cached data on disk and data retrieval fails', async function () {72    request.returns(createMockErrorStream());73    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).resolves({ mtime: new Date(Date.now() - 150000) });74    const data = new PublicSuffixData({ tts: 100, ttl: 200 });75    await data.getTLD('somedomain.com');76  });77  it('yields an error if there is expired cached data and data retrieval fails', async function () {78    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).resolves({ mtime: new Date(Date.now() - 300000) });79    request.returns(createMockErrorStream());80    const data = new PublicSuffixData({ tts: 100, ttl: 200 });81    let caughtError = null;82    try {83      await data.getTLD('somedomain.com');84    } catch (err) {85      caughtError = err;86    }87    88    expect(caughtError).to.exist;89  });90  it('does not retrieve the list from the Internet if there is a non-stale cached file', function () {91    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).resolves({ mtime: new Date() });92    const data = new PublicSuffixData();93    return data.getTLD('somedomain.com')94      .then(function () {95        expect(request).to.have.not.been.called;96      });97  });98  it('retrieves the list from the Internet if there is a non-stale cached file that gets a read error', function () {99    fs.promises.stat.withArgs(sinon.match(/\.publicsuffix\.org$/)).resolves({ mtime: new Date() });100    fs.promises.readFile.rejects(new Error());101    const data = new PublicSuffixData();102    return data.getTLD('somedomain.com')103      .then(function () {104        expect(request).to.have.been.called;105      });106  });107  it('saves the retrieved list to the cache location', async function () {108    const cacheFile = sinon.match(/\.publicsuffix\.org$/);109    fs.promises.stat.withArgs(cacheFile).rejects({ code: 'ENOENT' });110    const data = new PublicSuffixData();111    await data.getTLD('somedomain.com');112    await delay(1);113    expect(fs.promises.writeFile).to.have.been.calledWithMatch(cacheFile);114  });115  it('caches the TLDs to memory so subsequent disk reads or Internet fetches are not needed', function () {116    const data = new PublicSuffixData();117    return data.getTLD('somedomain.com')118      .then(function () {119        fs.promises.stat.reset();120        return data.getTLD('somethingelse.net');121      })122      .then(function () {123        expect(fs.promises.stat).to.have.not.been.called;124      })125  });126  it('returns data from memory when valid but stale, so fetch is performed out-of-band', async function () {127    this.timeout(5000);128    fs.promises.stat.rejects({ code: 'ENOENT' });129    request.returns(createMockStream('uk'));130    const data = new PublicSuffixData({ tts: 1, ttl: 1000000 });131    let tld = await data.getTLD('somedomain.co.uk');132    expect(tld).to.equal('uk');133    await delay(2000);134    request.returns(createMockStream('uk\nco.uk'));135    tld = await data.getTLD('somedomain.co.uk');136    expect(tld).to.equal('uk'); // We still serve up stale data137    await delay(1000);138    tld = await data.getTLD('somedomain.co.uk');139    expect(tld).to.equal('co.uk');140  });141  it('handles single-segment TLDs', function () {142    const cacheFile = sinon.match(/\.publicsuffix\.org$/);143    fs.promises.stat.withArgs(cacheFile).rejects({ code: 'ENOENT' });144    request.returns(createMockStream('com'));145    const data = new PublicSuffixData();146    return data.getTLD('somedomain.com')147      .then(function (tld) {148        expect(tld).to.equal('com');149      });150  });151  it('handles two-segment TLDs', function () {152    const cacheFile = sinon.match(/\.publicsuffix\.org$/);153    fs.promises.stat.withArgs(cacheFile).rejects({ code: 'ENOENT' });154    request.returns(createMockStream('co\nuk\nco.uk'));155    const data = new PublicSuffixData();156    return data.getTLD('foo.co.uk')157      .then(function (tld) {158        expect(tld).to.equal('co.uk');159      });160  });161  it('handles exception rules', function () {162    const cacheFile = sinon.match(/\.publicsuffix\.org$/);163    fs.promises.stat.withArgs(cacheFile).rejects({ code: 'ENOENT' });164    request.returns(createMockStream('*.kawasaki.jp\n!city.kawasaki.jp'));165    const data = new PublicSuffixData();166    return data.getTLD('city.kawasaki.jp')167      .then(function (tld) {168        expect(tld).to.equal('kawasaki.jp');169      });170  });171  it('ignores comments', function () {172    const cacheFile = sinon.match(/\.publicsuffix\.org$/);173    fs.promises.stat.withArgs(cacheFile).rejects({ code: 'ENOENT' });174    request.returns(createMockStream('jp\n// jp geographic type names\n*.kawasaki.jp'));175    const data = new PublicSuffixData();176    return data.getTLD('foo.kawasaki.jp')177      .then(function (tld) {178        expect(tld).to.equal('foo.kawasaki.jp');179      });180  });181  function setup() {182    fs = {183      promises: {184        stat: sinon.stub().resolves({ mtime: new Date() }),185        readFile: sinon.stub().resolves('{}'),186        writeFile: sinon.stub().resolves()187      }188    };189    request = sinon.stub().returns(createMockStream(''));190    PublicSuffixData = proxyquire.noCallThru()('../../lib/public-suffix-data', {191      fs: fs,192      request: request193    });194  }195  function createMockStream(content) {196    const stream = new PassThroughStream();197    stream.end(content);198    return stream;199  }200  function createMockErrorStream() {201    const mockStream = new EventEmitter();202    mockStream.on = sinon.stub().withArgs('error').yields(new Error('Boom'));203    mockStream.pipe = function (writable) { return writable; };204    return mockStream;205  }206  function delay(ms) {207    return new Promise(resolve => setTimeout(resolve, ms));208  }...

dev.js

Source:dev.js

...43                if (withMinExt(path)) {44                    // Minizize image45                    const relPath = join(publicPath, removeMinExt(path))46                    const ext = extname(relPath)47                    if (fs.existsSync(relPath) && (await fs.promises.stat(relPath)).isFile()) {48                        const processed = await sharp(relPath).resize(100).toBuffer()49                        res.type(ext.substring(1)).send(processed)50                    } else {51                        next()52                    }53                } else {54                    const relPath = join(publicPath, path)55                    const ext = extname(relPath)56                    if (fs.existsSync(relPath) && (await fs.promises.stat(relPath)).isFile()) {57                        res.type(ext.substring(1)).send(await fs.promises.readFile(relPath))58                    } else {59                        next()60                    }61                }62                break63            }64        case '.html':65            {66                const relPath = join(pagesPath, replaceFileExt(path, '.pug'))67                if (fs.existsSync(relPath) && (await fs.promises.stat(relPath)).isFile()) {68                    const page = pug.compileFile(relPath)69                    res.type('html').send(page(pugOptions))70                } else {71                    next()72                }73                break74            }75        case '.css':76            {77                const relPath = join(stylesPath, replaceFileExt(path, '.styl'))78                if (fs.existsSync(relPath) && (await fs.promises.stat(relPath)).isFile()) {79                    const cssData = stylus(await fs.promises.readFile(relPath, { encoding: 'utf8' }))80                        .use(nib())81                        .import('nib')82                        .render()83                    res.type('css').send(cssData)84                } else {85                    next()86                }87                break88            }89        default:90            {91                const relPath = join(publicPath, path)92                const ext = extname(relPath)93                if (fs.existsSync(relPath) && (await fs.promises.stat(relPath)).isFile()) {94                    res.type(ext.substring(1)).send(await fs.promises.readFile(relPath))95                } else {96                    next()97                }98            }99    }100})101app.use((_req, res) => {102    const notFountPath = join(pagesPath, '404.pug')103    res.type('html').send(pug.compileFile(notFountPath)(pugOptions)).end()104})105app.listen(8080, () => {106    console.log('Start listening on port http://localhost:8080')107})

fs.state.js

Source:fs.state.js

1// Node.js program to demonstrate the  2// fsPromises.stat() method  3    4// Import the filesystem module  5const fsPromises = require("fs").promises; 6(async () => { 7  try { 8    // Using the fsPromises.stat() method 9    const stats = await fsPromises.stat( 10          "GFG.txt"); 11    console.log(stats.isDirectory()); 12  }  13  catch (error) { 14    console.log(error); 15  } ...

Using AI Code Generation

1const fs = require('fs').promises;2fs.stat('file.txt')3  .then((stats) => {4    console.log(`isFile: ${stats.isFile()}`);5    console.log(`isDirectory: ${stats.isDirectory()}`);6    console.log(`isBlockDevice: ${stats.isBlockDevice()}`);7    console.log(`isCharacterDevice: ${stats.isCharacterDevice()}`);8    console.log(`isFIFO: ${stats.isFIFO()}`);9    console.log(`isSocket: ${stats.isSocket()}`);10  })11  .catch((err) => console.error(err));

Using AI Code Generation

1const fs = require('fs');2const { promisify } = require('util');3const stat = promisify(fs.stat);4async function main() {5  const stats = await stat('test.js');6  console.log(`This file is ${stats.size} bytes`);7}8main();9const fs = require('fs');10const { promisify } = require('util');11const stat = promisify(fs.stat);12async function main() {13  const stats = await stat('test.js');14  console.log(`This file is ${stats.size} bytes`);15}16main();17const fs = require('fs');18const { promisify } = require('util');19const stat = promisify(fs.stat);20async function main() {21  const stats = await stat('test.js');22  console.log(`This file is ${stats.size} bytes`);23}24main();25const fs = require('fs');26const { promisify } = require('util');27const stat = promisify(fs.stat);28async function main() {29  const stats = await stat('test.js');30  console.log(`This file is ${stats.size} bytes`);31}32main();33const fs = require('fs');34const { promisify } = require('util');35const stat = promisify(fs.stat);36async function main() {37  const stats = await stat('test.js');38  console.log(`This file is ${stats.size} bytes`);39}40main();41const fs = require('fs');42const { promisify } = require('util');43const stat = promisify(fs.stat);44async function main() {45  const stats = await stat('test.js');46  console.log(`This file is ${stats.size} bytes`);47}48main();49const fs = require('fs');50const { promisify } = require('util');51const stat = promisify(fs.stat);

Using AI Code Generation

1const fs = require('fs');2const { promisify } = require('util');3const stat = promisify(fs.stat);4stat('/etc/passwd')5    .then((stats) => {6        console.log(stats.isFile());7    })8    .catch((error) => {9    });10const fs = require('fs');11fs.stat('/etc/passwd', (err, stats) => {12    if (err) {13    }14    console.log(stats.isFile());15});16const fs = require('fs');17const { promisify } = require('util');18const lstat = promisify(fs.lstat);19lstat('/etc/passwd')20    .then((stats) => {21        console.log(stats.isFile());22    })23    .catch((error) => {24    });25const fs = require('fs');26fs.lstat('/etc/passwd', (err, stats) => {27    if (err) {28    }29    console.log(stats.isFile());30});31const fs = require('fs');32const { promisify } = require('util');33const readdir = promisify(fs.readdir);34readdir('/etc')35    .then((files) => {36        console.log(files);37    })38    .catch((error) => {39    });40const fs = require('fs');41fs.readdir('/etc', (err, files) => {42    if (err) {43    }44    console.log(files);45});

Using AI Code Generation

1const fs = require('fs').promises;2async function main() {3  const stats = await fs.stat('/etc/passwd');4  console.log(`This file is owned by ${stats.uid}`);5}6main();7const fs = require('fs').promises;8async function main() {9  const stats = await fs.stat('/etc/passwd');10  console.log(`This file is owned by ${stats.uid}`);11}12main();13const fs = require('fs').promises;14async function main() {15  const stats = await fs.stat('/etc/passwd');16  console.log(`This file is owned by ${stats.uid}`);17}18main();19const fs = require('fs').promises;20async function main() {21  const stats = await fs.stat('/etc/passwd');22  console.log(`This file is owned by ${stats.uid}`);23}24main();25const fs = require('fs').promises;26async function main() {27  const stats = await fs.stat('/etc/passwd');28  console.log(`This file is owned by ${stats.uid}`);29}30main();

Using AI Code Generation

1const fs = require('fs').promises;2const path = require('path');3const filePath = path.join(__dirname, 'test.txt');4fs.stat(filePath)5    .then(stats => console.log(stats))6    .catch(err => console.log(err));7{ dev: 16777220,8  birthtime: 2019-05-23T08:13:36.000Z }9The fs.Stats object is an object that describes a file. The object is returned by the fs.stat() and fs.lstat() methods. The following methods are available on the fs.Stats object:10fs.Stats.isFile()11fs.Stats.isDirectory()12fs.Stats.isBlockDevice()13fs.Stats.isCharacterDevice()14fs.Stats.isSymbolicLink() (only valid with fs.lstat())15fs.Stats.isFIFO()16fs.Stats.isSocket()

Using AI Code Generation

1const fs = require('fs');2fs.promises.stat('test.js')3  .then((stats) => {4  });5  const fs = require('fs');6  fs.stat('test.js', (err, stats) => {7    if (err) throw err;8  });9  const fs = require('fs');10  try {11    const stats = fs.statSync('test.js');12  } catch (err) {13    throw err;14  }15  const fs = require('fs');16  fs.promises.stat('test.js')17    .then((stats) => {18    });19  const fs = require('fs');20  fs.stat('test.js', (err, stats) => {21    if (err) throw err;22  });23  const fs = require('fs');24  try {25    const stats = fs.statSync('test.js');26  } catch (err) {27    throw err;28  }29  const fs = require('fs');30  fs.promises.stat('test.js')31    .then((stats) => {

Using AI Code Generation

1fs.promises.stat('/dev/null').then((stats) => {2  console.log(stats);3});4fs.promises.stat('/dev/null').then((stats) => {5  console.log(stats);6});7fs.stat('/dev/null', (err, stats) => {8  if (err) {9    console.log(err);10  } else {11    console.log(stats);12  }13});14fs.stat('/dev/null', (err, stats) => {15  if (err) {16    console.log(err);17  } else {18    console.log(stats);19  }20});21fs.stat('/dev/null', (err, stats) => {22  if (err) {23    console.log(err);24  } else {25    console.log(stats);26  }27});28fs.stat('/dev/null', (err, stats) => {29  if (err) {30    console.log(err);31  } else {32    console.log(stats);33  }34});35fs.stat('/dev/null', (err, stats) => {36  if (err) {37    console.log(err);38  } else {39    console.log(stats);40  }41});42fs.stat('/dev/null', (err, stats) => {43  if (err) {44    console.log(err);45  } else {46    console.log(stats);

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