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
IsGUIDv4(const std::string & guid)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
TEST(GUIDTest,GUIDGeneratesAllZeroes)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
TEST(GUIDTest,GUIDGeneratesCorrectly)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
TEST(GUIDTest,GUIDCorrectlyFormatted)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
TEST(GUIDTest,GUIDBasicUniqueness)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