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/* -*- mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Stewart Smith
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include <gtest/gtest.h>
#include <drizzled/atomics.h>
using namespace drizzled;
TEST(atomic_operations, fetch_and_store)
{
atomic<uint32_t> u235;
EXPECT_EQ(0, u235.fetch_and_store(1));
u235.fetch_and_store(15);
EXPECT_EQ(15, u235.fetch_and_store(100));
EXPECT_EQ(100, u235);
}
TEST(atomic_operations, fetch_and_increment)
{
atomic<uint32_t> u235;
EXPECT_EQ(0, u235.fetch_and_increment());
EXPECT_EQ(1, u235);
}
TEST(atomic_operations, fetch_and_add)
{
atomic<uint32_t> u235;
EXPECT_EQ(0, u235.fetch_and_add(2));
EXPECT_EQ(2, u235);
}
TEST(atomic_operations, add_and_fetch)
{
atomic<uint32_t> u235;
EXPECT_EQ(10, u235.add_and_fetch(10));
EXPECT_EQ(10, u235);
}
TEST(atomic_operations, fetch_and_decrement)
{
atomic<uint32_t> u235;
u235.fetch_and_store(15);
EXPECT_EQ(15, u235.fetch_and_decrement());
EXPECT_EQ(14, u235);
}
TEST(atomic_operations, compare_and_swap)
{
atomic<uint32_t> u235;
u235.fetch_and_store(100);
ASSERT_FALSE(u235.compare_and_swap(42, 200));
ASSERT_TRUE(u235.compare_and_swap(200, 100));
EXPECT_EQ(200, u235);
}
TEST(atomic_operations, increment)
{
atomic<uint32_t> u235;
u235.fetch_and_store(200);
EXPECT_EQ(201, u235.increment());
}
TEST(atomic_operations, decrement)
{
atomic<uint32_t> u235;
u235.fetch_and_store(200);
EXPECT_EQ(199, u235.decrement());
}
/*
TEST(atomic_operations, increment_assign)
{
atomic<uint32_t> u235;
u235.fetch_and_store(200);
EXPECT_EQ(242, u235+=42);
}
TEST(atomic_operations, decrement_assign)
{
atomic<uint32_t> u235;
u235.fetch_and_store(200);
EXPECT_EQ(158, u235-=42);
}
*/
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