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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include "opentelemetry/sdk/common/atomic_unique_ptr.h"
#include <gtest/gtest.h>
#include <string>
using opentelemetry::sdk::common::AtomicUniquePtr;
TEST(AtomicUniquePtrTest, SwapIfNullWithNull)
{
AtomicUniquePtr<int> ptr;
EXPECT_TRUE(ptr.IsNull());
std::unique_ptr<int> x{new int{33}};
EXPECT_TRUE(ptr.SwapIfNull(x));
EXPECT_EQ(x, nullptr);
}
TEST(AtomicUniquePtrTest, SwapIfNullWithNonNull)
{
AtomicUniquePtr<int> ptr;
ptr.Reset(new int{11});
std::unique_ptr<int> x{new int{33}};
EXPECT_TRUE(!ptr.SwapIfNull(x));
EXPECT_NE(x, nullptr);
EXPECT_EQ(*x, 33);
EXPECT_EQ(*ptr, 11);
}
TEST(AtomicUniquePtrTest, Swap)
{
AtomicUniquePtr<int> ptr;
EXPECT_TRUE(ptr.IsNull());
ptr.Reset(new int{11});
std::unique_ptr<int> x{new int{33}};
ptr.Swap(x);
EXPECT_FALSE(ptr.IsNull());
EXPECT_NE(x, nullptr);
EXPECT_EQ(*x, 11);
EXPECT_EQ(*ptr, 33);
}
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