base/guid_unittest.cc

   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 "testing/gtest/include/gtest/gtest.h"
  10
  11 #if defined(OS_POSIX)
  12 TEST(GUIDTest, GUIDGeneratesAllZeroes) {
  13   uint64 bytes[] = { 0, 0 };
  14   std::string clientid = base::RandomDataToGUIDString(bytes);
  15   EXPECT_EQ("00000000-0000-0000-0000-000000000000", clientid);
  16 }
  17
  18 TEST(GUIDTest, GUIDGeneratesCorrectly) {
  19   uint64 bytes[] = { 0x0123456789ABCDEFULL, 0xFEDCBA9876543210ULL };
  20   std::string clientid = base::RandomDataToGUIDString(bytes);
  21   EXPECT_EQ("01234567-89AB-CDEF-FEDC-BA9876543210", clientid);
  22 }
  23 #endif
  24
  25 TEST(GUIDTest, GUIDCorrectlyFormatted) {
  26   const int kIterations = 10;
  27   for (int it = 0; it < kIterations; ++it) {
  28     std::string guid = base::GenerateGUID();
  29     EXPECT_TRUE(base::IsValidGUID(guid));
  30   }
  31 }
  32
  33 TEST(GUIDTest, GUIDBasicUniqueness) {
  34   const int kIterations = 10;
  35   for (int it = 0; it < kIterations; ++it) {
  36     std::string guid1 = base::GenerateGUID();
  37     std::string guid2 = base::GenerateGUID();
  38     EXPECT_EQ(36U, guid1.length());
  39     EXPECT_EQ(36U, guid2.length());
  40     EXPECT_NE(guid1, guid2);
  41   }
  42 }