token_unittest.cc 3.0 KB

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  1. // Copyright 2018 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. #include "base/token.h"
  5. #include "base/pickle.h"
  6. #include "testing/gtest/include/gtest/gtest.h"
  7. namespace base {
  8. // Verifies that we can support constexpr Token construction.
  9. constexpr Token kTestToken{1234, 5678};
  10. TEST(TokenTest, Constructors) {
  11. Token zero_token;
  12. EXPECT_EQ(0u, zero_token.high());
  13. EXPECT_EQ(0u, zero_token.low());
  14. EXPECT_TRUE(zero_token.is_zero());
  15. Token token_with_explicit_values{1234, 5678};
  16. EXPECT_EQ(1234u, token_with_explicit_values.high());
  17. EXPECT_EQ(5678u, token_with_explicit_values.low());
  18. EXPECT_FALSE(token_with_explicit_values.is_zero());
  19. Token random_token = Token::CreateRandom();
  20. EXPECT_FALSE(random_token.is_zero());
  21. EXPECT_EQ(1234u, kTestToken.high());
  22. EXPECT_EQ(5678u, kTestToken.low());
  23. EXPECT_FALSE(kTestToken.is_zero());
  24. }
  25. TEST(TokenTest, Equality) {
  26. EXPECT_EQ(Token(), Token(0, 0));
  27. EXPECT_EQ(Token(0, 0), Token(0, 0));
  28. EXPECT_EQ(Token(1, 2), Token(1, 2));
  29. EXPECT_NE(Token(1, 2), Token(1, 3));
  30. EXPECT_NE(Token(1, 2), Token(2, 2));
  31. EXPECT_NE(Token(1, 2), Token(3, 4));
  32. }
  33. TEST(TokenTest, Ordering) {
  34. EXPECT_LT(Token(0, 0), Token(0, 1));
  35. EXPECT_LT(Token(0, 1), Token(0, 2));
  36. EXPECT_LT(Token(0, 1), Token(1, 0));
  37. EXPECT_LT(Token(0, 2), Token(1, 0));
  38. }
  39. TEST(TokenTest, ToString) {
  40. EXPECT_EQ("00000000000000000000000000000000", Token(0, 0).ToString());
  41. EXPECT_EQ("00000000000000010000000000000002", Token(1, 2).ToString());
  42. EXPECT_EQ("0123456789ABCDEF5A5A5A5AA5A5A5A5",
  43. Token(0x0123456789abcdefull, 0x5a5a5a5aa5a5a5a5ull).ToString());
  44. EXPECT_EQ("FFFFFFFFFFFFFFFDFFFFFFFFFFFFFFFE",
  45. Token(0xfffffffffffffffdull, 0xfffffffffffffffeull).ToString());
  46. }
  47. TEST(TokenTest, FromString) {
  48. // digits is 40 bytes long. We call FromString on various substrings of it,
  49. // which should only succeed when the substring is 32 bytes long.
  50. std::string digits = "3141592653589793238462643383279502884197";
  51. EXPECT_EQ(Token(0x3141592653589793ull, 0x2384626433832795ull),
  52. *Token::FromString(digits.substr(0, 32)));
  53. // FromString should reject any input that isn't 32 bytes long.
  54. EXPECT_FALSE(Token::FromString(digits.substr(0, 0)));
  55. EXPECT_FALSE(Token::FromString(digits.substr(0, 1)));
  56. EXPECT_FALSE(Token::FromString(digits.substr(0, 16)));
  57. EXPECT_FALSE(Token::FromString(digits.substr(0, 31)));
  58. EXPECT_TRUE(Token::FromString(digits.substr(0, 32)));
  59. EXPECT_FALSE(Token::FromString(digits.substr(0, 33)));
  60. // FromString should reject any input bytes that aren't in [0-9A-F].
  61. // Specifically, lower case [a-f] bytes are also rejected.
  62. digits[5] = 'a';
  63. EXPECT_FALSE(Token::FromString(digits.substr(0, 32)));
  64. digits[5] = 'A';
  65. EXPECT_TRUE(Token::FromString(digits.substr(0, 32)));
  66. }
  67. TEST(TokenTest, Pickle) {
  68. Pickle pickle;
  69. WriteTokenToPickle(&pickle, kTestToken);
  70. PickleIterator iterator(pickle);
  71. EXPECT_EQ(kTestToken, ReadTokenFromPickle(&iterator));
  72. }
  73. } // namespace base