1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4//
5// A test for ZLib's checksum function.
6
7#include "rlz/lib/crc32.h"
8
9#include "base/logging.h"
10#include "testing/gmock/include/gmock/gmock.h"
11#include "testing/gtest/include/gtest/gtest.h"
12
13TEST(Crc32Unittest, ByteTest) {
14  struct {
15    const char* data;
16    int len;
17    // Externally calculated at http://crc32-checksum.waraxe.us/
18    int crc;
19  } kData[] = {
20    {"Hello"           ,  5, 0xF7D18982},
21    {"Google"          ,  6, 0x62B0F067},
22    {""                ,  0, 0x0},
23    {"One more string.", 16, 0x0CA14970},
24    {NULL              ,  0, 0x0},
25  };
26
27  for (int i = 0; kData[i].data; i++)
28    EXPECT_EQ(kData[i].crc,
29        rlz_lib::Crc32(reinterpret_cast<const unsigned char*>(kData[i].data),
30                       kData[i].len));
31}
32
33TEST(Crc32Unittest, CharTest) {
34  struct {
35    const char* data;
36    // Externally calculated at http://crc32-checksum.waraxe.us/
37    int crc;
38  } kData[] = {
39    {"Hello"           , 0xF7D18982},
40    {"Google"          , 0x62B0F067},
41    {""                , 0x0},
42    {"One more string.", 0x0CA14970},
43    {"Google\r\n"      , 0x83A3E860},
44    {NULL              , 0x0},
45  };
46
47  int crc;
48  for (int i = 0; kData[i].data; i++) {
49    EXPECT_TRUE(rlz_lib::Crc32(kData[i].data, &crc));
50    EXPECT_EQ(kData[i].crc, crc);
51  }
52}
53