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