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 "rtc_base/crc32.h"
12
13 #include <string>
14
15 #include "test/gtest.h"
16
17 namespace rtc {
18
TEST(Crc32Test,TestBasic)19 TEST(Crc32Test, TestBasic) {
20 EXPECT_EQ(0U, ComputeCrc32(""));
21 EXPECT_EQ(0x352441C2U, ComputeCrc32("abc"));
22 EXPECT_EQ(
23 0x171A3F5FU,
24 ComputeCrc32("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"));
25 }
26
TEST(Crc32Test,TestMultipleUpdates)27 TEST(Crc32Test, TestMultipleUpdates) {
28 std::string input =
29 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq";
30 uint32_t c = 0;
31 for (size_t i = 0; i < input.size(); ++i) {
32 c = UpdateCrc32(c, &input[i], 1);
33 }
34 EXPECT_EQ(0x171A3F5FU, c);
35 }
36
37 } // namespace rtc
38