1 // Copyright (c) 2018 The LevelDB 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. See the AUTHORS file for names of contributors.
4
5 #include "util/no_destructor.h"
6
7 #include <cstdint>
8 #include <cstdlib>
9 #include <utility>
10
11 #include "gtest/gtest.h"
12
13 namespace leveldb {
14
15 namespace {
16
17 struct DoNotDestruct {
18 public:
DoNotDestructleveldb::__anon9c515ece0111::DoNotDestruct19 DoNotDestruct(uint32_t a, uint64_t b) : a(a), b(b) {}
~DoNotDestructleveldb::__anon9c515ece0111::DoNotDestruct20 ~DoNotDestruct() { std::abort(); }
21
22 // Used to check constructor argument forwarding.
23 uint32_t a;
24 uint64_t b;
25 };
26
27 constexpr const uint32_t kGoldenA = 0xdeadbeef;
28 constexpr const uint64_t kGoldenB = 0xaabbccddeeffaabb;
29
30 } // namespace
31
TEST(NoDestructorTest,StackInstance)32 TEST(NoDestructorTest, StackInstance) {
33 NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
34 ASSERT_EQ(kGoldenA, instance.get()->a);
35 ASSERT_EQ(kGoldenB, instance.get()->b);
36 }
37
TEST(NoDestructorTest,StaticInstance)38 TEST(NoDestructorTest, StaticInstance) {
39 static NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
40 ASSERT_EQ(kGoldenA, instance.get()->a);
41 ASSERT_EQ(kGoldenB, instance.get()->b);
42 }
43
44 } // namespace leveldb
45
46