/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "platform/PODArena.h"
#include "platform/testing/ArenaTestHelpers.h"
#include "wtf/FastMalloc.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include <algorithm>
#include <gtest/gtest.h>
namespace WebCore {
using ArenaTestHelpers::TrackedAllocator;
namespace {
// A couple of simple structs to allocate.
struct TestClass1 {
TestClass1()
: x(0), y(0), z(0), w(1) { }
float x, y, z, w;
};
struct TestClass2 {
TestClass2()
: a(1), b(2), c(3), d(4) { }
float a, b, c, d;
};
} // anonymous namespace
class PODArenaTest : public testing::Test {
};
// Make sure the arena can successfully allocate from more than one
// region.
TEST_F(PODArenaTest, CanAllocateFromMoreThanOneRegion)
{
RefPtr<TrackedAllocator> allocator = TrackedAllocator::create();
RefPtr<PODArena> arena = PODArena::create(allocator);
int numIterations = 10 * PODArena::DefaultChunkSize / sizeof(TestClass1);
for (int i = 0; i < numIterations; ++i)
arena->allocateObject<TestClass1>();
EXPECT_GT(allocator->numRegions(), 1);
}
// Make sure the arena frees all allocated regions during destruction.
TEST_F(PODArenaTest, FreesAllAllocatedRegions)
{
RefPtr<TrackedAllocator> allocator = TrackedAllocator::create();
{
RefPtr<PODArena> arena = PODArena::create(allocator);
for (int i = 0; i < 3; i++)
arena->allocateObject<TestClass1>();
EXPECT_GT(allocator->numRegions(), 0);
}
EXPECT_TRUE(allocator->isEmpty());
}
// Make sure the arena runs constructors of the objects allocated within.
TEST_F(PODArenaTest, RunsConstructors)
{
RefPtr<PODArena> arena = PODArena::create();
for (int i = 0; i < 10000; i++) {
TestClass1* tc1 = arena->allocateObject<TestClass1>();
EXPECT_EQ(0, tc1->x);
EXPECT_EQ(0, tc1->y);
EXPECT_EQ(0, tc1->z);
EXPECT_EQ(1, tc1->w);
TestClass2* tc2 = arena->allocateObject<TestClass2>();
EXPECT_EQ(1, tc2->a);
EXPECT_EQ(2, tc2->b);
EXPECT_EQ(3, tc2->c);
EXPECT_EQ(4, tc2->d);
}
}
} // namespace WebCore