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 namespace { 18 19 bool IsGUIDv4(const std::string& guid) { 20 // The format of GUID version 4 must be xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, 21 // where y is one of [8, 9, A, B]. 22 return IsValidGUID(guid) && guid[14] == '4' && 23 (guid[19] == '8' || guid[19] == '9' || guid[19] == 'A' || 24 guid[19] == 'a' || guid[19] == 'B' || guid[19] == 'b'); 25 } 26 27 } // namespace 28 29 TEST(GUIDTest, GUIDGeneratesAllZeroes) { 30 uint64_t bytes[] = {0, 0}; 31 std::string clientid = RandomDataToGUIDString(bytes); 32 EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid); 33 } 34 35 TEST(GUIDTest, GUIDGeneratesCorrectly) { 36 uint64_t bytes[] = {0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL}; 37 std::string clientid = RandomDataToGUIDString(bytes); 38 EXPECT_EQ("01234567-89ab-cdef-fedc-ba9876543210", clientid); 39 } 40 41 TEST(GUIDTest, GUIDCorrectlyFormatted) { 42 const int kIterations = 10; 43 for (int it = 0; it < kIterations; ++it) { 44 std::string guid = GenerateGUID(); 45 EXPECT_TRUE(IsValidGUID(guid)); 46 EXPECT_TRUE(IsValidGUIDOutputString(guid)); 47 EXPECT_TRUE(IsValidGUID(ToLowerASCII(guid))); 48 EXPECT_TRUE(IsValidGUID(ToUpperASCII(guid))); 49 } 50 } 51 52 TEST(GUIDTest, GUIDBasicUniqueness) { 53 const int kIterations = 10; 54 for (int it = 0; it < kIterations; ++it) { 55 std::string guid1 = GenerateGUID(); 56 std::string guid2 = GenerateGUID(); 57 EXPECT_EQ(36U, guid1.length()); 58 EXPECT_EQ(36U, guid2.length()); 59 EXPECT_NE(guid1, guid2); 60 EXPECT_TRUE(IsGUIDv4(guid1)); 61 EXPECT_TRUE(IsGUIDv4(guid2)); 62 } 63 } 64 65 } // namespace base 66
