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      1 // Copyright (c) 2012 The Chromium OS 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 #include "binary_data_utils.h"
      6 #include "compat/test.h"
      7 
      8 namespace quipper {
      9 
     10 namespace {
     11 
     12 const size_t kHexArraySize = 8;
     13 
     14 }  // namespace
     15 
     16 TEST(BinaryDataUtilsTest, MD5) {
     17   ASSERT_EQ(Md5Prefix(""), 0xd41d8cd98f00b204LL);
     18   ASSERT_EQ(Md5Prefix("The quick brown fox jumps over the lazy dog."),
     19             0xe4d909c290d0fb1cLL);
     20 }
     21 
     22 TEST(BinaryDataUtilsTest, Align) {
     23   EXPECT_EQ(12, Align<4>(10));
     24   EXPECT_EQ(12, Align<4>(12));
     25   EXPECT_EQ(16, Align<4>(13));
     26   EXPECT_EQ(100, Align<4>(97));
     27   EXPECT_EQ(100, Align<4>(100));
     28   EXPECT_EQ(104, Align<8>(100));
     29   EXPECT_EQ(112, Align<8>(108));
     30   EXPECT_EQ(112, Align<8>(112));
     31 
     32   EXPECT_EQ(12, Align<uint32_t>(10));
     33   EXPECT_EQ(112, Align<uint64_t>(112));
     34 }
     35 
     36 TEST(BinaryDataUtilsTest, RawDataToHexString) {
     37   u8 hex_number[kHexArraySize];
     38   // Generate a sequence of bytes and check its hex string representation.
     39   for (size_t i = 0; i < arraysize(hex_number); ++i) hex_number[i] = i << i;
     40   EXPECT_EQ("0002081840a08080",
     41             RawDataToHexString(hex_number, arraysize(hex_number)));
     42 
     43   // Change the first and last bytes and check the new hex string.
     44   hex_number[0] = 0x8f;
     45   hex_number[arraysize(hex_number) - 1] = 0x64;
     46   EXPECT_EQ("8f02081840a08064",
     47             RawDataToHexString(hex_number, arraysize(hex_number)));
     48 }
     49 
     50 TEST(BinaryDataUtilsTest, StringToHex) {
     51   u8 output[kHexArraySize], expected[kHexArraySize];
     52 
     53   // Use the same tests as in RawDataToHexString, except reversed.
     54   for (size_t i = 0; i < arraysize(expected); ++i) expected[i] = i << i;
     55   EXPECT_TRUE(
     56       HexStringToRawData("0002081840a08080", output, arraysize(output)));
     57   for (size_t i = 0; i < arraysize(expected); ++i)
     58     EXPECT_EQ(expected[i], output[i]);
     59 
     60   expected[0] = 0x8f;
     61   expected[arraysize(expected) - 1] = 0x64;
     62   EXPECT_TRUE(HexStringToRawData("8f02081840a080640123456789abcdef", output,
     63                                  arraysize(output)));
     64   for (size_t i = 0; i < arraysize(expected); ++i)
     65     EXPECT_EQ(expected[i], output[i]);
     66 }
     67 
     68 }  // namespace quipper
     69