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 "platform/PODArena.h"
28
29 #include "platform/testing/ArenaTestHelpers.h"
30 #include "wtf/FastMalloc.h"
31 #include "wtf/RefPtr.h"
32
33 #include <algorithm>
34 #include <gtest/gtest.h>
35
36 namespace blink {
37
38 using ArenaTestHelpers::TrackedAllocator;
39
40 namespace {
41
42 // A couple of simple structs to allocate.
43 struct TestClass1 {
TestClass1blink::__anon74e540bf0111::TestClass144 TestClass1()
45 : x(0), y(0), z(0), w(1) { }
46
47 float x, y, z, w;
48 };
49
50 struct TestClass2 {
TestClass2blink::__anon74e540bf0111::TestClass251 TestClass2()
52 : a(1), b(2), c(3), d(4) { }
53
54 float a, b, c, d;
55 };
56
57 } // anonymous namespace
58
59 class PODArenaTest : public testing::Test {
60 };
61
62 // Make sure the arena can successfully allocate from more than one
63 // region.
TEST_F(PODArenaTest,CanAllocateFromMoreThanOneRegion)64 TEST_F(PODArenaTest, CanAllocateFromMoreThanOneRegion)
65 {
66 RefPtr<TrackedAllocator> allocator = TrackedAllocator::create();
67 RefPtr<PODArena> arena = PODArena::create(allocator);
68 int numIterations = 10 * PODArena::DefaultChunkSize / sizeof(TestClass1);
69 for (int i = 0; i < numIterations; ++i)
70 arena->allocateObject<TestClass1>();
71 EXPECT_GT(allocator->numRegions(), 1);
72 }
73
74 // Make sure the arena frees all allocated regions during destruction.
TEST_F(PODArenaTest,FreesAllAllocatedRegions)75 TEST_F(PODArenaTest, FreesAllAllocatedRegions)
76 {
77 RefPtr<TrackedAllocator> allocator = TrackedAllocator::create();
78 {
79 RefPtr<PODArena> arena = PODArena::create(allocator);
80 for (int i = 0; i < 3; i++)
81 arena->allocateObject<TestClass1>();
82 EXPECT_GT(allocator->numRegions(), 0);
83 }
84 EXPECT_TRUE(allocator->isEmpty());
85 }
86
87 // Make sure the arena runs constructors of the objects allocated within.
TEST_F(PODArenaTest,RunsConstructors)88 TEST_F(PODArenaTest, RunsConstructors)
89 {
90 RefPtr<PODArena> arena = PODArena::create();
91 for (int i = 0; i < 10000; i++) {
92 TestClass1* tc1 = arena->allocateObject<TestClass1>();
93 EXPECT_EQ(0, tc1->x);
94 EXPECT_EQ(0, tc1->y);
95 EXPECT_EQ(0, tc1->z);
96 EXPECT_EQ(1, tc1->w);
97 TestClass2* tc2 = arena->allocateObject<TestClass2>();
98 EXPECT_EQ(1, tc2->a);
99 EXPECT_EQ(2, tc2->b);
100 EXPECT_EQ(3, tc2->c);
101 EXPECT_EQ(4, tc2->d);
102 }
103 }
104
105 } // namespace blink
106