tests/standalone/io/read_into_const_list_test.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.

// Regression test for missing immutability check in the ListSet
// methods in the API. This allowed overwriting const Lists.

import "package:expect/expect.dart";
import "dart:io";

String getFilename(String path) =>
    new File(path).existsSync() ? path : 'runtime/$path';

void main() {
  var a = const [0];
  var b = const [0];
  Expect.identical(a, b);

  String filename = getFilename("bin/file_test.cc");
  File file = new File(filename);
  file.open().then((input) {
      try {
        input.readIntoSync(a, 0, 1);
        Expect.fail("no exception thrown");
      } catch (e) {
        Expect.isTrue(e is UnsupportedError);
      }
      Expect.equals(0, a[0]);
      Expect.equals(0, b[0]);
    });
}