1 // Copyright 2019 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/util/type_safety/pass_key.h" 6 7 #include <utility> 8 9 #include "testing/gtest/include/gtest/gtest.h" 10 11 namespace util { 12 namespace { 13 14 class Manager; 15 16 // May not be created without a PassKey. 17 class Restricted { 18 public: Restricted(util::PassKey<Manager>)19 Restricted(util::PassKey<Manager>) {} 20 }; 21 22 class Manager { 23 public: 24 enum class ExplicitConstruction { kTag }; 25 enum class UniformInitialization { kTag }; 26 Manager(ExplicitConstruction)27 Manager(ExplicitConstruction) : restricted_(util::PassKey<Manager>()) {} Manager(UniformInitialization)28 Manager(UniformInitialization) : restricted_({}) {} 29 30 private: 31 Restricted restricted_; 32 }; 33 34 // If this file compiles, then these test will run and pass. This is useful 35 // for verifying that the file actually was compiled into the unit test binary. 36 TEST(PassKeyTest,ExplicitConstruction)37TEST(PassKeyTest, ExplicitConstruction) { 38 Manager manager(Manager::ExplicitConstruction::kTag); 39 } 40 TEST(PassKeyTest,UniformInitialization)41TEST(PassKeyTest, UniformInitialization) { 42 Manager manager(Manager::UniformInitialization::kTag); 43 } 44 45 } // namespace 46 } // namespace util 47