xref: /aosp_15_r20/external/skia/tests/MD5Test.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1 /*
2  * Copyright 2013 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "src/core/SkMD5.h"
9 #include "tests/Test.h"
10 
11 #include <array>
12 #include <cstddef>
13 #include <cstdint>
14 #include <cstring>
15 
digests_equal(const SkMD5::Digest & expectedDigest,const SkMD5::Digest & computedDigest)16 static bool digests_equal(const SkMD5::Digest& expectedDigest, const SkMD5::Digest& computedDigest) {
17     for (size_t i = 0; i < std::size(expectedDigest.data); ++i) {
18         if (expectedDigest.data[i] != computedDigest.data[i]) {
19             return false;
20         }
21     }
22     return true;
23 }
24 
md5_test(const char * string,const SkMD5::Digest & expectedDigest,skiatest::Reporter * reporter)25 static void md5_test(const char* string, const SkMD5::Digest& expectedDigest, skiatest::Reporter* reporter) {
26     size_t len = strlen(string);
27 
28     // All at once
29     {
30         SkMD5 context;
31         context.write(string, len);
32         SkMD5::Digest digest = context.finish();
33 
34         REPORTER_ASSERT(reporter, digests_equal(expectedDigest, digest));
35     }
36 
37     // One byte at a time.
38     {
39         SkMD5 context;
40         const uint8_t* data = reinterpret_cast<const uint8_t*>(string);
41         const uint8_t* end = reinterpret_cast<const uint8_t*>(string + len);
42         for (; data < end; ++data) {
43             context.write(data, 1);
44         }
45         SkMD5::Digest digest = context.finish();
46 
47         REPORTER_ASSERT(reporter, digests_equal(expectedDigest, digest));
48     }
49 }
50 
51 static struct MD5Test {
52     const char* message;
53     SkMD5::Digest digest;
54 } md5_tests[] = {
55     // Reference tests from RFC1321 Section A.5 ( http://www.ietf.org/rfc/rfc1321.txt )
56     { "", {{ 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e }} },
57     { "a", {{ 0x0c, 0xc1, 0x75, 0xb9, 0xc0, 0xf1, 0xb6, 0xa8, 0x31, 0xc3, 0x99, 0xe2, 0x69, 0x77, 0x26, 0x61 }} },
58     { "abc", {{ 0x90, 0x01, 0x50, 0x98, 0x3c, 0xd2, 0x4f, 0xb0, 0xd6, 0x96, 0x3f, 0x7d, 0x28, 0xe1, 0x7f, 0x72 }} },
59     { "message digest", {{ 0xf9, 0x6b, 0x69, 0x7d, 0x7c, 0xb7, 0x93, 0x8d, 0x52, 0x5a, 0x2f, 0x31, 0xaa, 0xf1, 0x61, 0xd0 }} },
60     { "abcdefghijklmnopqrstuvwxyz", {{ 0xc3, 0xfc, 0xd3, 0xd7, 0x61, 0x92, 0xe4, 0x00, 0x7d, 0xfb, 0x49, 0x6c, 0xca, 0x67, 0xe1, 0x3b }} },
61     { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", {{ 0xd1, 0x74, 0xab, 0x98, 0xd2, 0x77, 0xd9, 0xf5, 0xa5, 0x61, 0x1c, 0x2c, 0x9f, 0x41, 0x9d, 0x9f }} },
62     { "12345678901234567890123456789012345678901234567890123456789012345678901234567890", {{ 0x57, 0xed, 0xf4, 0xa2, 0x2b, 0xe3, 0xc9, 0x55, 0xac, 0x49, 0xda, 0x2e, 0x21, 0x07, 0xb6, 0x7a }} },
63 };
64 
DEF_TEST(MD5,reporter)65 DEF_TEST(MD5, reporter) {
66     for (size_t i = 0; i < std::size(md5_tests); ++i) {
67         md5_test(md5_tests[i].message, md5_tests[i].digest, reporter);
68     }
69 }
70