d469321946
PR-URL: https://github.com/nodejs/node/pull/8622 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Yorkie Liu <yorkiefixer@gmail.com> Reviewed-By: Jackson Tian <shvyo1987@gmail.com> Reviewed-By: Johan Bergström <bugs@bergstroem.nu> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
124 lines
3.7 KiB
JavaScript
124 lines
3.7 KiB
JavaScript
'use strict';
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var common = require('../common');
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var assert = require('assert');
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var fs = require('fs');
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var path = require('path');
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var doesNotExist = path.join(common.tmpDir, '__this_should_not_exist');
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var readOnlyFile = path.join(common.tmpDir, 'read_only_file');
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var readWriteFile = path.join(common.tmpDir, 'read_write_file');
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var removeFile = function(file) {
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try {
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fs.unlinkSync(file);
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} catch (err) {
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// Ignore error
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}
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};
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var createFileWithPerms = function(file, mode) {
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removeFile(file);
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fs.writeFileSync(file, '');
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fs.chmodSync(file, mode);
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};
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common.refreshTmpDir();
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createFileWithPerms(readOnlyFile, 0o444);
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createFileWithPerms(readWriteFile, 0o666);
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/*
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* On non-Windows supported platforms, fs.access(readOnlyFile, W_OK, ...)
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* always succeeds if node runs as the super user, which is sometimes the
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* case for tests running on our continuous testing platform agents.
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*
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* In this case, this test tries to change its process user id to a
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* non-superuser user so that the test that checks for write access to a
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* read-only file can be more meaningful.
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*
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* The change of user id is done after creating the fixtures files for the same
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* reason: the test may be run as the superuser within a directory in which
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* only the superuser can create files, and thus it may need superuser
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* priviledges to create them.
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*
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* There's not really any point in resetting the process' user id to 0 after
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* changing it to 'nobody', since in the case that the test runs without
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* superuser priviledge, it is not possible to change its process user id to
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* superuser.
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*
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* It can prevent the test from removing files created before the change of user
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* id, but that's fine. In this case, it is the responsability of the
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* continuous integration platform to take care of that.
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*/
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var hasWriteAccessForReadonlyFile = false;
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if (!common.isWindows && process.getuid() === 0) {
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hasWriteAccessForReadonlyFile = true;
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try {
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process.setuid('nobody');
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hasWriteAccessForReadonlyFile = false;
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} catch (err) {
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}
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}
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assert.strictEqual(typeof fs.F_OK, 'number');
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assert.strictEqual(typeof fs.R_OK, 'number');
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assert.strictEqual(typeof fs.W_OK, 'number');
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assert.strictEqual(typeof fs.X_OK, 'number');
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fs.access(__filename, function(err) {
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assert.strictEqual(err, null, 'error should not exist');
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});
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fs.access(__filename, fs.R_OK, function(err) {
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assert.strictEqual(err, null, 'error should not exist');
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});
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fs.access(doesNotExist, function(err) {
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assert.notEqual(err, null, 'error should exist');
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assert.strictEqual(err.code, 'ENOENT');
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assert.strictEqual(err.path, doesNotExist);
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});
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fs.access(readOnlyFile, fs.F_OK | fs.R_OK, function(err) {
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assert.strictEqual(err, null, 'error should not exist');
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});
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fs.access(readOnlyFile, fs.W_OK, function(err) {
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if (hasWriteAccessForReadonlyFile) {
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assert.equal(err, null, 'error should not exist');
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} else {
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assert.notEqual(err, null, 'error should exist');
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assert.strictEqual(err.path, readOnlyFile);
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}
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});
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assert.throws(function() {
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fs.access(100, fs.F_OK, function(err) {});
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}, /path must be a string or Buffer/);
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assert.throws(function() {
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fs.access(__filename, fs.F_OK);
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}, /"callback" argument must be a function/);
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assert.throws(function() {
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fs.access(__filename, fs.F_OK, {});
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}, /"callback" argument must be a function/);
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assert.doesNotThrow(function() {
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fs.accessSync(__filename);
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});
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assert.doesNotThrow(function() {
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var mode = fs.F_OK | fs.R_OK | fs.W_OK;
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fs.accessSync(readWriteFile, mode);
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});
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assert.throws(function() {
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fs.accessSync(doesNotExist);
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}, function(err) {
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return err.code === 'ENOENT' && err.path === doesNotExist;
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});
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process.on('exit', function() {
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removeFile(readOnlyFile);
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removeFile(readWriteFile);
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});
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