base/token_unittest.cc

   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
   5 #include "base/token.h"
   6 #include "testing/gtest/include/gtest/gtest.h"
   7
   8 namespace base {
   9
  10 // Verifies that we can support constexpr Token construction.
  11 constexpr Token kTestToken{1234, 5678};
  12
  13 TEST(TokenTest, Constructors) {
  14   Token zero_token;
  15   EXPECT_EQ(0u, zero_token.high());
  16   EXPECT_EQ(0u, zero_token.low());
  17   EXPECT_TRUE(zero_token.is_zero());
  18
  19   Token token_with_explicit_values{1234, 5678};
  20   EXPECT_EQ(1234u, token_with_explicit_values.high());
  21   EXPECT_EQ(5678u, token_with_explicit_values.low());
  22   EXPECT_FALSE(token_with_explicit_values.is_zero());
  23
  24   Token random_token = Token::CreateRandom();
  25   EXPECT_FALSE(random_token.is_zero());
  26
  27   EXPECT_EQ(1234u, kTestToken.high());
  28   EXPECT_EQ(5678u, kTestToken.low());
  29   EXPECT_FALSE(kTestToken.is_zero());
  30 }
  31
  32 TEST(TokenTest, Equality) {
  33   EXPECT_EQ(Token(), Token(0, 0));
  34   EXPECT_EQ(Token(0, 0), Token(0, 0));
  35   EXPECT_EQ(Token(1, 2), Token(1, 2));
  36   EXPECT_NE(Token(1, 2), Token(1, 3));
  37   EXPECT_NE(Token(1, 2), Token(2, 2));
  38   EXPECT_NE(Token(1, 2), Token(3, 4));
  39 }
  40
  41 TEST(TokenTest, Ordering) {
  42   EXPECT_LT(Token(0, 0), Token(0, 1));
  43   EXPECT_LT(Token(0, 1), Token(0, 2));
  44   EXPECT_LT(Token(0, 1), Token(1, 0));
  45   EXPECT_LT(Token(0, 2), Token(1, 0));
  46 }
  47
  48 TEST(TokenTest, ToString) {
  49   EXPECT_EQ("00000000000000000000000000000000", Token(0, 0).ToString());
  50   EXPECT_EQ("00000000000000010000000000000002", Token(1, 2).ToString());
  51   EXPECT_EQ("0123456789ABCDEF5A5A5A5AA5A5A5A5",
  52             Token(0x0123456789abcdefull, 0x5a5a5a5aa5a5a5a5ull).ToString());
  53   EXPECT_EQ("FFFFFFFFFFFFFFFDFFFFFFFFFFFFFFFE",
  54             Token(0xfffffffffffffffdull, 0xfffffffffffffffeull).ToString());
  55 }
  56
  57 }  // namespace base