Error reporting on File in dart:io

tests/standalone/src/io/FileInvalidArgumentsTest.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.
 
 #import("dart:io");
 
 class FileTest {
-  static void testOpenInvalidArgs(name, [writable = false]) {
+  static void testOpenInvalidArgs(name) {
     var file = new File(name);
     try {
       file.openSync();
       Expect.fail('exception expected');
     } catch (var e) {
-      Expect.isTrue(e is FileIOException);
-      Expect.isTrue(e.toString().contains('open file'));
+      Expect.isTrue(e is IllegalArgumentException);
     }
 
-    file.onError = (s) {
-      Expect.isTrue(s.contains('open file'));
+    file.onError = (e) {
+      Expect.isTrue(e is IllegalArgumentException);
     };
     file.open(FileMode.READ, (opened) {
       Expect.fail('non-string name open');
     });
   }
 
   static void testExistsInvalidArgs(name) {
     var file = new File(name);
     try {
       file.existsSync();
       Expect.fail('exception expected');
     } catch (var e) {
-      Expect.isTrue(e is FileIOException);
-      Expect.isTrue(e.toString().contains('is not a string'));
+      Expect.isTrue(e is IllegalArgumentException);
     }
 
-    file.onError = (s) {
-      Expect.isTrue(s.contains('is not a string'));
+    file.onError = (e) {
+      Expect.isTrue(e is IllegalArgumentException);
     };
     file.exists((bool) {
       Expect.fail('non-string name exists');
     });
   }
 
   static void testCreateInvalidArgs(name) {
     var file = new File(name);
     try {
       file.createSync();
       Expect.fail('exception expected');
     } catch (var e) {
-      Expect.isTrue(e is FileIOException);
-      Expect.isTrue(e.toString().contains('Cannot create file'));
+      Expect.isTrue(e is IllegalArgumentException);
     }
 
-    file.onError = (s) {
-      Expect.isTrue(s.contains('Cannot create file'));
-    };
-    file.create((created) {
-      Expect.fail('non-string name exists');
-    });
+    file.onError = (e) => Expect.isTrue(e is IllegalArgumentException);
+    file.create(() => Expect.fail('non-string name exists'));
   }
 
   static void testReadListInvalidArgs(buffer, offset, length) {
     String filename = getFilename("tests/vm/data/fixed_length_file");
     var file = (new File(filename)).openSync();
     try {
       file.readListSync(buffer, offset, length);
       Expect.fail('exception expected');
     } catch (var e) {
       Expect.isTrue(e is FileIOException);
@@ skipping 92 matching lines @@
     };
     file.close();
   }
 
   static void testFullPathInvalidArgs(name) {
     var file = new File(name);
     try {
       file.fullPathSync();
       Expect.fail('exception expected');
     } catch (var e) {
-      Expect.isTrue(e is FileIOException);
-      Expect.isTrue(e.toString().contains('fullPath failed'));
+      Expect.isTrue(e is IllegalArgumentException);
     }
 
-    file.onError = (s) {
-      Expect.isTrue(s.contains('fullPath failed'));
+    file.onError = (e) {
+      Expect.isTrue(e is IllegalArgumentException);
     };
     file.fullPath((path) {
       Expect.fail('full path invalid argument');
     });
   }
 
   static String getFilename(String path) =>
       new File(path).existsSync() ? path : 'runtime/' + path;
 }
 
 main() {
   FileTest.testOpenInvalidArgs(0);
-  FileTest.testOpenInvalidArgs('name', 0);
   FileTest.testExistsInvalidArgs(0);
   FileTest.testCreateInvalidArgs(0);
   FileTest.testReadListInvalidArgs(12, 0, 1);
   FileTest.testReadListInvalidArgs(new List(10), '0', 1);
   FileTest.testReadListInvalidArgs(new List(10), 0, '1');
   FileTest.testWriteByteInvalidArgs('asdf');
   FileTest.testWriteListInvalidArgs(12, 0, 1);
   FileTest.testWriteListInvalidArgs(new List(10), '0', 1);
   FileTest.testWriteListInvalidArgs(new List(10), 0, '1');
   FileTest.testFullPathInvalidArgs(12);
 }