tests/html/typed_arrays_1_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.

#library('TypedArrays1Test');
#import('../../pkg/unittest/unittest.dart');
#import('../../pkg/unittest/html_config.dart');
#import('dart:html');

main() {
  useHtmlConfiguration();

  test('createByLengthTest', () {
      var a = new Float32Array(10);
      Expect.equals(10, a.length);
      Expect.equals(0, a[4]);
  });

  test('aliasTest', () {
      var a1 = new Uint8Array.fromList([0,0,1,0x45]);
      var a2 = new Float32Array.fromBuffer(a1.buffer);

      Expect.equals(1, a2.length);

      // 0x45010000 = 2048+16
      Expect.equals(2048 + 16, a2[0]);

      a1[2] = 0;
      // 0x45000000 = 2048
      Expect.equals(2048, a2[0]);

      a1[3]--;
      a1[2] += 128;
      // 0x44800000 = 1024
      Expect.equals(1024, a2[0]);

  });

  test('typeTests', () {
      var a = new Float32Array(10);
      Expect.isTrue(a is List);
      Expect.isTrue(a is List<num>);
      Expect.isTrue(a is! List<String>);
    });
}