node/test/parallel/test-fs-stat.js

// Copyright Joyent, Inc. and other Node contributors.
//
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//
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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/* eslint-disable strict */
const common = require('../common');
const assert = require('assert');
const fs = require('fs');

fs.stat('.', common.mustCall(function(err, stats) {
  assert.ifError(err);
  assert.ok(stats.mtime instanceof Date);
  assert.strictEqual(this, global);
}));

fs.stat('.', common.mustCall(function(err, stats) {
  assert.ok(stats.hasOwnProperty('blksize'));
  assert.ok(stats.hasOwnProperty('blocks'));
}));

fs.lstat('.', common.mustCall(function(err, stats) {
  assert.ifError(err);
  assert.ok(stats.mtime instanceof Date);
  assert.strictEqual(this, global);
}));

// fstat
fs.open('.', 'r', undefined, common.mustCall(function(err, fd) {
  assert.ok(!err);
  assert.ok(fd);

  fs.fstat(fd, common.mustCall(function(err, stats) {
    assert.ifError(err);
    assert.ok(stats.mtime instanceof Date);
    fs.close(fd, assert.ifError);
    assert.strictEqual(this, global);
  }));

  assert.strictEqual(this, global);
}));

// fstatSync
fs.open('.', 'r', undefined, common.mustCall(function(err, fd) {
  let stats;
  try {
    stats = fs.fstatSync(fd);
  } catch (err) {
    assert.fail(err);
  }
  if (stats) {
    assert.ok(stats.mtime instanceof Date);
  }
  fs.close(fd, assert.ifError);
}));

fs.stat(__filename, common.mustCall(function(err, s) {
  assert.ifError(err);
  assert.strictEqual(false, s.isDirectory());
  assert.strictEqual(true, s.isFile());
  assert.strictEqual(false, s.isSocket());
  assert.strictEqual(false, s.isBlockDevice());
  assert.strictEqual(false, s.isCharacterDevice());
  assert.strictEqual(false, s.isFIFO());
  assert.strictEqual(false, s.isSymbolicLink());
  const keys = [
    'dev', 'mode', 'nlink', 'uid',
    'gid', 'rdev', 'ino', 'size',
    'atime', 'mtime', 'ctime', 'birthtime',
    'atimeMs', 'mtimeMs', 'ctimeMs', 'birthtimeMs'
  ];
  if (!common.isWindows) {
    keys.push('blocks', 'blksize');
  }
  const numberFields = [
    'dev', 'mode', 'nlink', 'uid', 'gid', 'rdev', 'ino', 'size',
    'atimeMs', 'mtimeMs', 'ctimeMs', 'birthtimeMs'
  ];
  const dateFields = ['atime', 'mtime', 'ctime', 'birthtime'];
  keys.forEach(function(k) {
    assert.ok(k in s, `${k} should be in Stats`);
    assert.notStrictEqual(s[k], undefined, `${k} should not be undefined`);
    assert.notStrictEqual(s[k], null, `${k} should not be null`);
  });
  numberFields.forEach((k) => {
    assert.strictEqual(typeof s[k], 'number', `${k} should be a number`);
  });
  dateFields.forEach((k) => {
    assert.ok(s[k] instanceof Date, `${k} should be a Date`);
  });
  const jsonString = JSON.stringify(s);
  const parsed = JSON.parse(jsonString);
  keys.forEach(function(k) {
    assert.notStrictEqual(parsed[k], undefined, `${k} should not be undefined`);
    assert.notStrictEqual(parsed[k], null, `${k} should not be null`);
  });
  numberFields.forEach((k) => {
    assert.strictEqual(typeof parsed[k], 'number', `${k} should be a number`);
  });
  dateFields.forEach((k) => {
    assert.strictEqual(typeof parsed[k], 'string', `${k} should be a string`);
  });
}));