| // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion Future<String> resolveSymbolicLinks() |
| /// Resolves the path of a file system object relative to the current working |
| /// directory, resolving all symbolic links on the path and resolving |
| /// all .. and . path segments. |
| /// |
| /// resolveSymbolicLinks uses the operating system's native file system API to |
| /// resolve the path, using the realpath function on linux and OS X, and the |
| /// GetFinalPathNameByHandle function on Windows. If the path does not point to |
| /// an existing file system object, resolveSymbolicLinks throws a |
| /// FileSystemException. |
| /// |
| /// On Windows the .. segments are resolved before resolving the symbolic link, |
| /// and on other platforms the symbolic links are resolved to their target before |
| /// applying a .. that follows. |
| /// @description Check that this method resolves the path of a file system object |
| /// relative to the current working directory, resolving all symbolic links on |
| /// the path and resolving all .. and . path segments |
| /// @author sgrekhov@unipro.ru |
| |
| import "dart:io"; |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| import "../file_utils.dart"; |
| |
| main() async { |
| await inSandbox(_main); |
| } |
| |
| _main(Directory sandbox) async { |
| // create 2 Directories |
| Directory dir1 = getTempDirectorySync(parent: sandbox); |
| Directory dir2 = getTempDirectorySync(parent: sandbox); |
| String dir2Name = getEntityName(dir2); |
| |
| // create file in dir2 |
| File file = getTempFileSync(parent: dir2); |
| |
| var rnd = new Random(new DateTime.now().microsecondsSinceEpoch); |
| // create link to the directory dir1 |
| Link link1 = getTempLinkSync( |
| parent: sandbox, |
| target: dir1.path, |
| name: "link1.lnk"); |
| // in dir1 create link to dir1 |
| Link link2 = getTempLinkSync( |
| parent: dir1, |
| target: ".", |
| name: "link2.lnk"); |
| // in dir1 create link to dir2 |
| Link link3 = getTempLinkSync( |
| parent: dir1, |
| target: ".." + Platform.pathSeparator + dir2Name, |
| name: "link3.lnk"); |
| |
| // Try to access file following the links |
| String path = link1.path + |
| Platform.pathSeparator + |
| getEntityName(link2) + |
| Platform.pathSeparator + |
| getEntityName(link3) + |
| Platform.pathSeparator + |
| getEntityName(file); |
| File f = new File(path); |
| |
| asyncStart(); |
| await f.resolveSymbolicLinks().then((String path) { |
| Expect.equals(file.path, path); |
| asyncEnd(); |
| }); |
| } |