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
16 namespace rtc {
17
TEST(Crc32Test,TestBasic)18 TEST(Crc32Test, TestBasic) {
19 EXPECT_EQ(0U, ComputeCrc32(""));
20 EXPECT_EQ(0x352441C2U, ComputeCrc32("abc"));
21 EXPECT_EQ(0x171A3F5FU,
22 ComputeCrc32("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"));
23 }
24
TEST(Crc32Test,TestMultipleUpdates)25 TEST(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