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