blob: 2bcc74f12848f4157ba772c5a8c43a0880e6b330 [file] [log] [blame]
// 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();
});
}