Add error handling to directory

tests/standalone/src/io/DirectoryErrorTest.dart

+// Copyright (c) 2012, 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.
+//
+// Dart test program for testing error handling in directory I/O.
+
+#import("dart:io");
+#import("dart:isolate");
+
+Directory tempDir() {
+  var d = new Directory('');
+  d.createTempSync();
+  return d;
+}
+
+
+bool checkCreateInNonExistentFileException(e) {
+  Expect.isTrue(e is DirectoryIOException);
+  Expect.isTrue(e.osError != null);
+  Expect.isTrue(e.toString().indexOf("Creation failed") != -1);
+  Platform platform = new Platform();
+  if (platform.operatingSystem() == "linux") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "macos") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "windows") {
+    Expect.isTrue(
+        e.toString().indexOf(
+            "The system cannot find the path specified") != -1);
+    Expect.equals(3, e.osError.errorCode);
+  }
+
+  return true;
+}
+
+
+void testCreateInNonExistent(Directory temp, Function done) {
+  Directory inNonExistent = new Directory("${temp.path}/nonExistent/xxx");
+  Expect.throws(() => inNonExistent.createSync(),
+                (e) => checkCreateInNonExistentFileException(e));
+
+  inNonExistent.create(() => Expect.fail("Unreachable code"));
+  inNonExistent.onError = (e) {
+    checkCreateInNonExistentFileException(e);
+    done();
+  };
+}
+
+
+bool checkCreateTempInNonExistentFileException(e) {
+  Expect.isTrue(e is DirectoryIOException);
+  Expect.isTrue(e.osError != null);
+  Expect.isTrue(e.toString().indexOf(
+      "Creation of temporary directory failed") != -1);
+  Platform platform = new Platform();
+  if (platform.operatingSystem() == "linux") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "macos") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "windows") {
+    Expect.isTrue(
+        e.toString().indexOf(
+            "The system cannot find the path specified") != -1);
+    Expect.equals(3, e.osError.errorCode);
+  }
+
+  return true;
+}
+
+
+void testCreateTempInNonExistent(Directory temp, Function done) {
+  Directory nonExistent = new Directory("${temp.path}/nonExistent/xxx");
+  Expect.throws(() => nonExistent.createTempSync(),
+                (e) => checkCreateTempInNonExistentFileException(e));
+
+  nonExistent.createTemp(() => Expect.fail("Unreachable code"));
+  nonExistent.onError = (e) {
+    checkCreateTempInNonExistentFileException(e);
+    done();
+  };
+}
+
+
+bool checkDeleteNonExistentFileException(e) {
+  Expect.isTrue(e is DirectoryIOException);
+  Expect.isTrue(e.osError != null);
+  Expect.isTrue(e.toString().indexOf("Deletion failed") != -1);
+  Platform platform = new Platform();
+  if (platform.operatingSystem() == "linux") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+  } else if (platform.operatingSystem() == "macos") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+  } else if (platform.operatingSystem() == "windows") {
+    Expect.isTrue(
+        e.toString().indexOf(
+            "The system cannot find the file specified") != -1);
+  }
+  // File not not found has error code 2 on all supported platforms.
+  Expect.equals(2, e.osError.errorCode);
+
+  return true;
+}
+
+
+void testDeleteNonExistent(Directory temp, Function done) {
+  Directory nonExistent = new Directory("${temp.path}/nonExistent");
+  Expect.throws(() => nonExistent.deleteSync(),
+                (e) => checkDeleteNonExistentFileException(e));
+
+  nonExistent.delete(() => Expect.fail("Unreachable code"));
+  nonExistent.onError = (e) {
+    checkDeleteNonExistentFileException(e);
+    done();
+  };
+}
+
+
+bool checkDeleteRecursivelyNonExistentFileException(e) {
+  Expect.isTrue(e is DirectoryIOException);
+  Expect.isTrue(e.osError != null);
+  Expect.isTrue(e.toString().indexOf("Deletion failed") != -1);
+  Platform platform = new Platform();
+  if (platform.operatingSystem() == "linux") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "macos") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "windows") {
+    Expect.isTrue(
+        e.toString().indexOf(
+            "The system cannot find the path specified") != -1);
+    Expect.equals(3, e.osError.errorCode);
+  }
+
+  return true;
+}
+
+
+void testDeleteRecursivelyNonExistent(Directory temp, Function done) {
+  Directory nonExistent = new Directory("${temp.path}/nonExistent");
+  Expect.throws(() => nonExistent.deleteRecursivelySync(),
+                (e) => checkDeleteRecursivelyNonExistentFileException(e));
+
+  nonExistent.deleteRecursively(() => Expect.fail("Unreachable code"));
+  nonExistent.onError = (e) {
+    checkDeleteRecursivelyNonExistentFileException(e);
+    done();
+  };
+}
+
+
+bool checkListNonExistentFileException(e) {
+  Expect.isTrue(e is DirectoryIOException);
+  Expect.isTrue(e.osError != null);
+  Expect.isTrue(e.toString().indexOf("Directory listing failed") != -1);
+  Platform platform = new Platform();
+  if (platform.operatingSystem() == "linux") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "macos") {
+    Expect.isTrue(e.toString().indexOf("No such file or directory") != -1);
+    Expect.equals(2, e.osError.errorCode);
+  } else if (platform.operatingSystem() == "windows") {
+    Expect.isTrue(
+        e.toString().indexOf(
+            "The system cannot find the path specified") != -1);
+    Expect.equals(3, e.osError.errorCode);
+  }
+
+  return true;
+}
+
+
+void testListNonExistent(Directory temp, Function done) {
+  Directory nonExistent = new Directory("${temp.path}/nonExistent");
+  nonExistent.list();
+  nonExistent.onError = (e) {
+    checkListNonExistentFileException(e);
+    done();
+  };
+}
+
+
+void runTest(Function test) {
+  // Create a temporary directory for the test.
+  var temp = new Directory('');
+  temp.createTempSync();
+
+  // Wait for the test to finish and delete the temporary directory.
+  ReceivePort p = new ReceivePort();
+  p.receive((x,y) {
+    p.close();
+    temp.deleteRecursivelySync();
+  });
+
+  // Run the test.
+  test(temp, () => p.toSendPort().send(null));
+}
+
+
+main() {
+  runTest(testCreateInNonExistent);
+  runTest(testCreateTempInNonExistent);
+  runTest(testDeleteNonExistent);
+  runTest(testDeleteRecursivelyNonExistent);
+  runTest(testListNonExistent);
+}