1/*
2 *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/base/crc32.h"
12#include "webrtc/base/gunit.h"
13
14#include <string>
15
16namespace rtc {
17
18TEST(Crc32Test, TestBasic) {
19  EXPECT_EQ(0U, ComputeCrc32(""));
20  EXPECT_EQ(0x352441C2U, ComputeCrc32("abc"));
21  EXPECT_EQ(0x171A3F5FU,
22      ComputeCrc32("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"));
23}
24
25TEST(Crc32Test, TestMultipleUpdates) {
26  std::string input =
27      "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
28  uint32_t c = 0;
29  for (size_t i = 0; i < input.size(); ++i) {
30    c = UpdateCrc32(c, &input[i], 1);
31  }
32  EXPECT_EQ(0x171A3F5FU, c);
33}
34
35}  // namespace rtc
36