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 <cstdint>
6 #include <cstdlib>
7 #include <utility>
8
9 #include "util/no_destructor.h"
10 #include "util/testharness.h"
11
12 namespace leveldb {
13
14 namespace {
15
16 struct DoNotDestruct {
17 public:
DoNotDestructleveldb::__anon744a7c9d0111::DoNotDestruct18 DoNotDestruct(uint32_t a, uint64_t b) : a(a), b(b) {}
~DoNotDestructleveldb::__anon744a7c9d0111::DoNotDestruct19 ~DoNotDestruct() { std::abort(); }
20
21 // Used to check constructor argument forwarding.
22 uint32_t a;
23 uint64_t b;
24 };
25
26 constexpr const uint32_t kGoldenA = 0xdeadbeef;
27 constexpr const uint64_t kGoldenB = 0xaabbccddeeffaabb;
28
29 } // namespace
30
31 class NoDestructorTest {};
32
TEST(NoDestructorTest,StackInstance)33 TEST(NoDestructorTest, StackInstance) {
34 NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
35 ASSERT_EQ(kGoldenA, instance.get()->a);
36 ASSERT_EQ(kGoldenB, instance.get()->b);
37 }
38
TEST(NoDestructorTest,StaticInstance)39 TEST(NoDestructorTest, StaticInstance) {
40 static NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
41 ASSERT_EQ(kGoldenA, instance.get()->a);
42 ASSERT_EQ(kGoldenB, instance.get()->b);
43 }
44
45 } // namespace leveldb
46
main(int argc,char ** argv)47 int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }
48