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