1/* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "core/platform/PODArena.h" 28 29#include "ArenaTestHelpers.h" 30#include "wtf/FastMalloc.h" 31#include "wtf/RefPtr.h" 32#include "wtf/Vector.h" 33 34#include <algorithm> 35#include <gtest/gtest.h> 36 37namespace WebCore { 38 39using ArenaTestHelpers::TrackedAllocator; 40 41namespace { 42 43// A couple of simple structs to allocate. 44struct TestClass1 { 45 TestClass1() 46 : x(0), y(0), z(0), w(1) { } 47 48 float x, y, z, w; 49}; 50 51struct TestClass2 { 52 TestClass2() 53 : a(1), b(2), c(3), d(4) { } 54 55 float a, b, c, d; 56}; 57 58} // anonymous namespace 59 60class PODArenaTest : public testing::Test { 61}; 62 63// Make sure the arena can successfully allocate from more than one 64// region. 65TEST_F(PODArenaTest, CanAllocateFromMoreThanOneRegion) 66{ 67 RefPtr<TrackedAllocator> allocator = TrackedAllocator::create(); 68 RefPtr<PODArena> arena = PODArena::create(allocator); 69 int numIterations = 10 * PODArena::DefaultChunkSize / sizeof(TestClass1); 70 for (int i = 0; i < numIterations; ++i) 71 arena->allocateObject<TestClass1>(); 72 EXPECT_GT(allocator->numRegions(), 1); 73} 74 75// Make sure the arena frees all allocated regions during destruction. 76TEST_F(PODArenaTest, FreesAllAllocatedRegions) 77{ 78 RefPtr<TrackedAllocator> allocator = TrackedAllocator::create(); 79 { 80 RefPtr<PODArena> arena = PODArena::create(allocator); 81 for (int i = 0; i < 3; i++) 82 arena->allocateObject<TestClass1>(); 83 EXPECT_GT(allocator->numRegions(), 0); 84 } 85 EXPECT_TRUE(allocator->isEmpty()); 86} 87 88// Make sure the arena runs constructors of the objects allocated within. 89TEST_F(PODArenaTest, RunsConstructors) 90{ 91 RefPtr<PODArena> arena = PODArena::create(); 92 for (int i = 0; i < 10000; i++) { 93 TestClass1* tc1 = arena->allocateObject<TestClass1>(); 94 EXPECT_EQ(0, tc1->x); 95 EXPECT_EQ(0, tc1->y); 96 EXPECT_EQ(0, tc1->z); 97 EXPECT_EQ(1, tc1->w); 98 TestClass2* tc2 = arena->allocateObject<TestClass2>(); 99 EXPECT_EQ(1, tc2->a); 100 EXPECT_EQ(2, tc2->b); 101 EXPECT_EQ(3, tc2->c); 102 EXPECT_EQ(4, tc2->d); 103 } 104} 105 106} // namespace WebCore 107