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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 "base/strings/string_util.h" | 7 #include "base/strings/string_util.h" |
8 #include "testing/gtest/include/gtest/gtest.h" | 8 #include "testing/gtest/include/gtest/gtest.h" |
9 | 9 |
10 // Basic functionality tests. Does NOT test the security of the random data. | 10 // Basic functionality tests. Does NOT test the security of the random data. |
11 | 11 |
12 // Ensures we don't have all trivial data, i.e. that the data is indeed random. | 12 // 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). | 13 // Currently, that means the bytes cannot be all the same (e.g. all zeros). |
14 bool IsTrivial(const std::string& bytes) { | 14 bool IsTrivial(const std::string& bytes) { |
15 for (size_t i = 0; i < bytes.size(); i++) { | 15 for (size_t i = 0; i < bytes.size(); i++) { |
16 if (bytes[i] != bytes[0]) { | 16 if (bytes[i] != bytes[0]) { |
17 return false; | 17 return false; |
18 } | 18 } |
19 } | 19 } |
20 return true; | 20 return true; |
21 } | 21 } |
22 | 22 |
23 TEST(RandBytes, RandBytes) { | 23 TEST(RandBytes, RandBytes) { |
24 std::string bytes(16, '\0'); | 24 std::string bytes(16, '\0'); |
25 crypto::RandBytes(WriteInto(&bytes, bytes.size()), bytes.size()); | 25 crypto::RandBytes(base::WriteInto(&bytes, bytes.size()), bytes.size()); |
26 EXPECT_TRUE(!IsTrivial(bytes)); | 26 EXPECT_TRUE(!IsTrivial(bytes)); |
27 } | 27 } |
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