Change how File/Directory/Link .delete works.

tests/standalone/io/file_system_exists_test.dart

+// Copyright (c) 2013, 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.
+
+import "dart:io";
+
+void testFileExists() {
+  var tmp = new Directory("").createTempSync();
+  var path = "${tmp.path}${Platform.pathSeparator}";
+
+  var file = new File("${path}myFile");
+  file.createSync();
+
+  Expect.isTrue(new File(file.path).existsSync());
+  Expect.isFalse(new Directory(file.path).existsSync());
+  Expect.isFalse(new Link(file.path).existsSync());
+
+  file.deleteSync();
+  Expect.isFalse(file.existsSync());
+
+  tmp.deleteSync();
+}
+
+void testDirectoryExists() {
+  var tmp = new Directory("").createTempSync();
+  var path = "${tmp.path}${Platform.pathSeparator}";
+
+  var dir = new Directory("${path}myDirectory");
+  dir.createSync();
+
+  Expect.isFalse(new File(dir.path).existsSync());
+  Expect.isTrue(new Directory(dir.path).existsSync());
+  Expect.isFalse(new Link(dir.path).existsSync());
+
+  dir.deleteSync();
+  Expect.isFalse(dir.existsSync());
+
+  tmp.deleteSync();
+}
+
+void testFileLinkExists() {
+  var tmp = new Directory("").createTempSync();
+  var path = "${tmp.path}${Platform.pathSeparator}";
+
+  var file = new File("${path}myFile");
+  file.createSync();
+
+  var link = new Link("${path}myLink");
+  link.createSync(file.path);
+
+  Expect.isTrue(new File(link.path).existsSync());
+  Expect.isFalse(new Directory(link.path).existsSync());
+  Expect.isTrue(new Link(link.path).existsSync());
+
+  link.deleteSync();

[Søren Gjesse, 2013/04/05 12:52:50]

Add

  Expect.isTrue(file.existsSync());
  Expect.isFalse(new File(link.path).existsSync());
  Expect.isFalse(new Directory(link.path).existsSync());

here

[Anders Johnsen, 2013/04/08 06:50:49]

This is already tested in broken-link test.

+  Expect.isFalse(link.existsSync());
+
+  file.deleteSync();
+  Expect.isFalse(file.existsSync());
+
+  tmp.deleteSync();
+}
+
+void testDirectoryLinkExists() {
+  var tmp = new Directory("").createTempSync();
+  var path = "${tmp.path}${Platform.pathSeparator}";
+
+  var directory = new Directory("${path}myDirectory");
+  directory.createSync();
+
+  var link = new Link("${path}myLink");
+  link.createSync(directory.path);
+
+  Expect.isFalse(new File(link.path).existsSync());
+  Expect.isTrue(new Directory(link.path).existsSync());
+  Expect.isTrue(new Link(link.path).existsSync());
+
+  link.deleteSync();

[Søren Gjesse, 2013/04/05 12:52:50]

Ditto.

[Anders Johnsen, 2013/04/08 06:50:49]

Same.

+  Expect.isFalse(link.existsSync());
+
+  directory.deleteSync();
+  Expect.isFalse(directory.existsSync());
+
+  tmp.deleteSync();
+}
+
+void testBrokenLinkExists() {
+  var tmp = new Directory("").createTempSync();
+  var path = "${tmp.path}${Platform.pathSeparator}";
+
+  var directory = new Directory("${path}myDirectory");
+  directory.createSync();
+
+  var link = new Link("${path}myLink");
+  link.createSync(directory.path);
+  directory.deleteSync();
+
+  Expect.isFalse(new File(link.path).existsSync());
+  Expect.isFalse(new Directory(link.path).existsSync());
+  Expect.isTrue(new Link(link.path).existsSync());
+
+  link.deleteSync();
+  Expect.isFalse(link.existsSync());
+
+  tmp.deleteSync();
+}
+
+void main() {
+  testFileExists();
+  testDirectoryExists();
+  // Not available on Windows.
+  // testFileLinkExists();
+  testDirectoryLinkExists();
+  testBrokenLinkExists();
+}
+