| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/memory/ptr_util.h" |
| |
| #include <stddef.h> |
| |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| |
| namespace { |
| |
| class DeleteCounter { |
| public: |
| DeleteCounter() { ++count_; } |
| ~DeleteCounter() { --count_; } |
| |
| static size_t count() { return count_; } |
| |
| private: |
| static size_t count_; |
| }; |
| |
| size_t DeleteCounter::count_ = 0; |
| |
| } // namespace |
| |
| TEST(PtrUtilTest, WrapUnique) { |
| EXPECT_EQ(0u, DeleteCounter::count()); |
| DeleteCounter* counter = new DeleteCounter; |
| EXPECT_EQ(1u, DeleteCounter::count()); |
| std::unique_ptr<DeleteCounter> owned_counter = WrapUnique(counter); |
| EXPECT_EQ(1u, DeleteCounter::count()); |
| owned_counter.reset(); |
| EXPECT_EQ(0u, DeleteCounter::count()); |
| } |
| |
| TEST(PtrUtilTest, MakeUniqueScalar) { |
| auto s = MakeUnique<std::string>(); |
| EXPECT_EQ("", *s); |
| |
| auto s2 = MakeUnique<std::string>("test"); |
| EXPECT_EQ("test", *s2); |
| } |
| |
| TEST(PtrUtilTest, MakeUniqueScalarWithMoveOnlyType) { |
| using MoveOnly = std::unique_ptr<std::string>; |
| auto p = MakeUnique<MoveOnly>(MakeUnique<std::string>("test")); |
| EXPECT_EQ("test", **p); |
| } |
| |
| TEST(PtrUtilTest, MakeUniqueArray) { |
| EXPECT_EQ(0u, DeleteCounter::count()); |
| auto a = MakeUnique<DeleteCounter[]>(5); |
| EXPECT_EQ(5u, DeleteCounter::count()); |
| a.reset(); |
| EXPECT_EQ(0u, DeleteCounter::count()); |
| } |
| |
| #if 0 |
| // TODO(dcheng): Move this into a nocompile test. |
| TEST(PtrUtilTest, MakeUniqueArrayWithKnownBounds) { |
| auto a = MakeUnique<DeleteCounter[1]>(); |
| auto b = MakeUnique<DeleteCounter[1]>(1); |
| } |
| #endif |
| |
| } // namespace base |