1  // Copyright (c) 2011 The LevelDB 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. See the AUTHORS file for names of contributors.
 4  
 5  #include "util/hash.h"
 6  #include "util/testharness.h"
 7  
 8  namespace leveldb {
 9  
10  class HASH {};
11  
12  TEST(HASH, SignedUnsignedIssue) {
13    const uint8_t data1[1] = {0x62};
14    const uint8_t data2[2] = {0xc3, 0x97};
15    const uint8_t data3[3] = {0xe2, 0x99, 0xa5};
16    const uint8_t data4[4] = {0xe1, 0x80, 0xb9, 0x32};
17    const uint8_t data5[48] = {
18        0x01, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
19        0x00, 0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00,
20        0x00, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x18, 0x28, 0x00, 0x00, 0x00,
21        0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
22    };
23  
24    ASSERT_EQ(Hash(0, 0, 0xbc9f1d34), 0xbc9f1d34);
25    ASSERT_EQ(
26        Hash(reinterpret_cast<const char*>(data1), sizeof(data1), 0xbc9f1d34),
27        0xef1345c4);
28    ASSERT_EQ(
29        Hash(reinterpret_cast<const char*>(data2), sizeof(data2), 0xbc9f1d34),
30        0x5b663814);
31    ASSERT_EQ(
32        Hash(reinterpret_cast<const char*>(data3), sizeof(data3), 0xbc9f1d34),
33        0x323c078f);
34    ASSERT_EQ(
35        Hash(reinterpret_cast<const char*>(data4), sizeof(data4), 0xbc9f1d34),
36        0xed21633a);
37    ASSERT_EQ(
38        Hash(reinterpret_cast<const char*>(data5), sizeof(data5), 0x12345678),
39        0xf333dabb);
40  }
41  
42  }  // namespace leveldb
43  
44  int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }