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 3 // found in the LICENSE file. 4 5 #include "base/guid.h" 6 7 #include <stdint.h> 8 9 #include <limits> 10 11 #include "base/strings/string_util.h" 12 #include "build/build_config.h" 13 #include "testing/gtest/include/gtest/gtest.h" 14 15 namespace base { 16 17 #if defined(OS_POSIX) 18 19 namespace { 20 21 bool IsGUIDv4(const std::string& guid) { 22 // The format of GUID version 4 must be xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, 23 // where y is one of [8, 9, A, B]. 24 return IsValidGUID(guid) && guid[14] == '4' && 25 (guid[19] == '8' || guid[19] == '9' || guid[19] == 'A' || 26 guid[19] == 'a' || guid[19] == 'B' || guid[19] == 'b'); 27 } 28 29 } // namespace 30 31 TEST(GUIDTest, GUIDGeneratesAllZeroes) { 32 uint64_t bytes[] = {0, 0}; 33 std::string clientid = RandomDataToGUIDString(bytes); 34 EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid); 35 } 36 37 TEST(GUIDTest, GUIDGeneratesCorrectly) { 38 uint64_t bytes[] = {0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL}; 39 std::string clientid = RandomDataToGUIDString(bytes); 40 EXPECT_EQ("01234567-89AB-CDEF-FEDC-BA9876543210", clientid); 41 } 42 #endif 43 44 TEST(GUIDTest, GUIDCorrectlyFormatted) { 45 const int kIterations = 10; 46 for (int it = 0; it < kIterations; ++it) { 47 std::string guid = GenerateGUID(); 48 EXPECT_TRUE(IsValidGUID(guid)); 49 EXPECT_TRUE(IsValidGUID(ToLowerASCII(guid))); 50 EXPECT_TRUE(IsValidGUID(ToUpperASCII(guid))); 51 } 52 } 53 54 TEST(GUIDTest, GUIDBasicUniqueness) { 55 const int kIterations = 10; 56 for (int it = 0; it < kIterations; ++it) { 57 std::string guid1 = GenerateGUID(); 58 std::string guid2 = GenerateGUID(); 59 EXPECT_EQ(36U, guid1.length()); 60 EXPECT_EQ(36U, guid2.length()); 61 EXPECT_NE(guid1, guid2); 62 #if defined(OS_POSIX) 63 EXPECT_TRUE(IsGUIDv4(guid1)); 64 EXPECT_TRUE(IsGUIDv4(guid2)); 65 #endif 66 } 67 } 68 69 } // namespace base 70
