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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 #library('TypedArrays2Test'); | |
6 #import('../../../../lib/unittest/unittest.dart'); | |
7 #import('../../../../lib/unittest/dom_config.dart'); | |
8 #import('dart:dom'); | |
9 | |
10 main() { | |
11 | |
12 useDomConfiguration(); | |
13 | |
14 test('fromBufferTest_dynamic', () { | |
15 var a1 = new Uint8Array(1024); | |
16 for (int i = 0; i < a1.length; i++) { | |
17 a1[i] = i; | |
18 } | |
19 | |
20 var a2 = new Uint32Array.fromBuffer(a1.buffer); | |
21 Expect.equals(1024 ~/ 4, a2.length); | |
22 Expect.equals(0x03020100, a2[0]); | |
23 Expect.equals(0x07060504, a2[1]); | |
24 Expect.equals(0x0B0A0908, a2[2]); | |
25 Expect.equals(0xCBCAC9C8, a2[50]); | |
26 Expect.equals(0xCFCECDCC, a2[51]); | |
27 Expect.equals(0x03020100, a2[64]); | |
28 | |
29 a2 = new Uint32Array.fromBuffer(a1.buffer, 200); | |
30 Expect.equals((1024 - 200) ~/ 4, a2.length); | |
31 Expect.equals(0xCBCAC9C8, a2[0]); | |
32 Expect.equals(0xCFCECDCC, a2[1]); | |
33 Expect.equals(0x03020100, a2[14]); | |
34 | |
35 a2 = new Uint32Array.fromBuffer(a1.buffer, 456, 20); | |
36 Expect.equals(20, a2.length); | |
37 Expect.equals(0xCBCAC9C8, a2[0]); | |
38 Expect.equals(0xCFCECDCC, a2[1]); | |
39 Expect.equals(0x03020100, a2[14]); | |
40 | |
41 a2 = new Uint32Array.fromBuffer(a1.buffer, length: 30, byteOffset: 456); | |
42 Expect.equals(30, a2.length); | |
43 Expect.equals(0xCBCAC9C8, a2[0]); | |
44 Expect.equals(0xCFCECDCC, a2[1]); | |
45 Expect.equals(0x03020100, a2[14]); | |
46 }); | |
47 | |
48 test('fromBufferTest_typed', () { | |
49 Uint8Array a1 = new Uint8Array(1024); | |
50 for (int i = 0; i < a1.length; i++) { | |
51 a1[i] = i; | |
52 } | |
53 | |
54 Uint32Array a2 = new Uint32Array.fromBuffer(a1.buffer); | |
55 Expect.equals(1024 ~/ 4, a2.length); | |
56 Expect.equals(0x03020100, a2[0]); | |
57 Expect.equals(0xCBCAC9C8, a2[50]); | |
58 Expect.equals(0xCFCECDCC, a2[51]); | |
59 Expect.equals(0x03020100, a2[64]); | |
60 | |
61 a2 = new Uint32Array.fromBuffer(a1.buffer, 200); | |
62 Expect.equals((1024 - 200) ~/ 4, a2.length); | |
63 Expect.equals(0xCBCAC9C8, a2[0]); | |
64 Expect.equals(0xCFCECDCC, a2[1]); | |
65 Expect.equals(0x03020100, a2[14]); | |
66 | |
67 a2 = new Uint32Array.fromBuffer(a1.buffer, 456, 20); | |
68 Expect.equals(20, a2.length); | |
69 Expect.equals(0xCBCAC9C8, a2[0]); | |
70 Expect.equals(0xCFCECDCC, a2[1]); | |
71 Expect.equals(0x03020100, a2[14]); | |
72 | |
73 a2 = new Uint32Array.fromBuffer(a1.buffer, length: 30, byteOffset: 456); | |
74 Expect.equals(30, a2.length); | |
75 Expect.equals(0xCBCAC9C8, a2[0]); | |
76 Expect.equals(0xCFCECDCC, a2[1]); | |
77 Expect.equals(0x03020100, a2[14]); | |
78 }); | |
79 } | |
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