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
15namespace base {
16
17namespace {
18
19bool 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
29TEST(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
35TEST(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
41TEST(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
52TEST(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