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

// Copyright Joyent, Inc. and other Node contributors.
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//
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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) {
    console.dir(stats);
    assert.ok(stats.mtime instanceof Date);
  }
  fs.close(fd, assert.ifError);
}));

console.log(`stating:  ${__filename}`);
fs.stat(__filename, common.mustCall(function(err, s) {
  assert.ifError(err);

  console.dir(s);

  console.log(`isDirectory: ${JSON.stringify(s.isDirectory())}`);
  assert.strictEqual(false, s.isDirectory());

  console.log(`isFile: ${JSON.stringify(s.isFile())}`);
  assert.strictEqual(true, s.isFile());

  console.log(`isSocket: ${JSON.stringify(s.isSocket())}`);
  assert.strictEqual(false, s.isSocket());

  console.log(`isBlockDevice: ${JSON.stringify(s.isBlockDevice())}`);
  assert.strictEqual(false, s.isBlockDevice());

  console.log(`isCharacterDevice: ${JSON.stringify(s.isCharacterDevice())}`);
  assert.strictEqual(false, s.isCharacterDevice());

  console.log(`isFIFO: ${JSON.stringify(s.isFIFO())}`);
  assert.strictEqual(false, s.isFIFO());

  console.log(`isSymbolicLink: ${JSON.stringify(s.isSymbolicLink())}`);
  assert.strictEqual(false, s.isSymbolicLink());

  assert.ok(s.atime instanceof Date);
  assert.ok(s.mtime instanceof Date);
  assert.ok(s.ctime instanceof Date);
  assert.ok(s.birthtime instanceof Date);
}));

fs.stat(__filename, common.mustCall(function(err, s) {
  const json = JSON.parse(JSON.stringify(s));
  const keys = [
    'dev', 'mode', 'nlink', 'uid',
    'gid', 'rdev', 'ino',
    'size', 'atime', 'mtime',
    'ctime', 'birthtime'
  ];
  if (!common.isWindows) {
    keys.push('blocks', 'blksize');
  }
  keys.forEach(function(k) {
    assert.ok(
      json[k] !== undefined && json[k] !== null,
      k + ' should not be null or undefined'
    );
  });
}));