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 <limits> 8 9 #include "base/strings/string_util.h" 10 #include "testing/gtest/include/gtest/gtest.h" 11 12 #if defined(OS_POSIX) 13 14 namespace { 15 16 bool IsGUIDv4(const std::string& guid) { 17 // The format of GUID version 4 must be xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, 18 // where y is one of [8, 9, A, B]. 19 return base::IsValidGUID(guid) && guid[14] == '4' && 20 (guid[19] == '8' || guid[19] == '9' || guid[19] == 'A' || 21 guid[19] == 'a' || guid[19] == 'B' || guid[19] == 'b'); 22 } 23 24 } // namespace 25 26 27 TEST(GUIDTest, GUIDGeneratesAllZeroes) { 28 uint64 bytes[] = { 0, 0 }; 29 std::string clientid = base::RandomDataToGUIDString(bytes); 30 EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid); 31 } 32 33 TEST(GUIDTest, GUIDGeneratesCorrectly) { 34 uint64 bytes[] = { 0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL }; 35 std::string clientid = base::RandomDataToGUIDString(bytes); 36 EXPECT_EQ("01234567-89AB-CDEF-FEDC-BA9876543210", clientid); 37 } 38 #endif 39 40 TEST(GUIDTest, GUIDCorrectlyFormatted) { 41 const int kIterations = 10; 42 for (int it = 0; it < kIterations; ++it) { 43 std::string guid = base::GenerateGUID(); 44 EXPECT_TRUE(base::IsValidGUID(guid)); 45 EXPECT_TRUE(base::IsValidGUID(base::StringToLowerASCII(guid))); 46 EXPECT_TRUE(base::IsValidGUID(StringToUpperASCII(guid))); 47 } 48 } 49 50 TEST(GUIDTest, GUIDBasicUniqueness) { 51 const int kIterations = 10; 52 for (int it = 0; it < kIterations; ++it) { 53 std::string guid1 = base::GenerateGUID(); 54 std::string guid2 = base::GenerateGUID(); 55 EXPECT_EQ(36U, guid1.length()); 56 EXPECT_EQ(36U, guid2.length()); 57 EXPECT_NE(guid1, guid2); 58 #if defined(OS_POSIX) 59 EXPECT_TRUE(IsGUIDv4(guid1)); 60 EXPECT_TRUE(IsGUIDv4(guid2)); 61 #endif 62 } 63 } 64
