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