OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "crypto/random.h" | 5 #include "crypto/random.h" |
6 | 6 |
| 7 #include <stddef.h> |
| 8 |
7 #include "base/strings/string_util.h" | 9 #include "base/strings/string_util.h" |
8 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
9 | 11 |
10 // Basic functionality tests. Does NOT test the security of the random data. | 12 // Basic functionality tests. Does NOT test the security of the random data. |
11 | 13 |
12 // Ensures we don't have all trivial data, i.e. that the data is indeed random. | 14 // Ensures we don't have all trivial data, i.e. that the data is indeed random. |
13 // Currently, that means the bytes cannot be all the same (e.g. all zeros). | 15 // Currently, that means the bytes cannot be all the same (e.g. all zeros). |
14 bool IsTrivial(const std::string& bytes) { | 16 bool IsTrivial(const std::string& bytes) { |
15 for (size_t i = 0; i < bytes.size(); i++) { | 17 for (size_t i = 0; i < bytes.size(); i++) { |
16 if (bytes[i] != bytes[0]) { | 18 if (bytes[i] != bytes[0]) { |
17 return false; | 19 return false; |
18 } | 20 } |
19 } | 21 } |
20 return true; | 22 return true; |
21 } | 23 } |
22 | 24 |
23 TEST(RandBytes, RandBytes) { | 25 TEST(RandBytes, RandBytes) { |
24 std::string bytes(16, '\0'); | 26 std::string bytes(16, '\0'); |
25 crypto::RandBytes(base::WriteInto(&bytes, bytes.size()), bytes.size()); | 27 crypto::RandBytes(base::WriteInto(&bytes, bytes.size()), bytes.size()); |
26 EXPECT_TRUE(!IsTrivial(bytes)); | 28 EXPECT_TRUE(!IsTrivial(bytes)); |
27 } | 29 } |
OLD | NEW |