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// Copyright (c) 2018 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "util/no_destructor.h"
#include <cstdint>
#include <cstdlib>
#include <utility>
#include "gtest/gtest.h"
namespace leveldb {
namespace {
struct DoNotDestruct {
public:
DoNotDestruct(uint32_t a, uint64_t b) : a(a), b(b) {}
~DoNotDestruct() { std::abort(); }
// Used to check constructor argument forwarding.
uint32_t a;
uint64_t b;
};
constexpr const uint32_t kGoldenA = 0xdeadbeef;
constexpr const uint64_t kGoldenB = 0xaabbccddeeffaabb;
} // namespace
TEST(NoDestructorTest, StackInstance) {
NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
ASSERT_EQ(kGoldenA, instance.get()->a);
ASSERT_EQ(kGoldenB, instance.get()->b);
}
TEST(NoDestructorTest, StaticInstance) {
static NoDestructor<DoNotDestruct> instance(kGoldenA, kGoldenB);
ASSERT_EQ(kGoldenA, instance.get()->a);
ASSERT_EQ(kGoldenB, instance.get()->b);
}
} // namespace leveldb
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