1'use strict'; 2 3const common = require('../common'); 4 5// The following tests validate base functionality for the fs.promises 6// FileHandle.chmod method. 7 8const fs = require('fs'); 9const { open } = fs.promises; 10const path = require('path'); 11const tmpdir = require('../common/tmpdir'); 12const assert = require('assert'); 13const tmpDir = tmpdir.path; 14 15tmpdir.refresh(); 16 17async function validateFilePermission() { 18 const filePath = path.resolve(tmpDir, 'tmp-chmod.txt'); 19 const fileHandle = await open(filePath, 'w+', 0o444); 20 // File created with r--r--r-- 444 21 const statsBeforeMod = fs.statSync(filePath); 22 assert.deepStrictEqual(statsBeforeMod.mode & 0o444, 0o444); 23 24 let expectedAccess; 25 const newPermissions = 0o765; 26 27 if (common.isWindows) { 28 // Chmod in Windows will only toggle read only/write access. The 29 // fs.Stats.mode in Windows is computed using read/write 30 // bits (not exec). Read-only at best returns 444; r/w 666. 31 // Refer: /deps/uv/src/win/fs.cfs; 32 expectedAccess = 0o664; 33 } else { 34 expectedAccess = newPermissions; 35 } 36 37 // Change the permissions to rwxr--r-x 38 await fileHandle.chmod(newPermissions); 39 const statsAfterMod = fs.statSync(filePath); 40 assert.deepStrictEqual(statsAfterMod.mode & expectedAccess, expectedAccess); 41 42 await fileHandle.close(); 43} 44 45validateFilePermission().then(common.mustCall()); 46