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27 #include "platform/PODArena.h"
29 #include "platform/testing/ArenaTestHelpers.h"
30 #include "wtf/FastMalloc.h"
31 #include "wtf/RefPtr.h"
32 #include "wtf/Vector.h"
35 #include <gtest/gtest.h>
39 using ArenaTestHelpers::TrackedAllocator;
43 // A couple of simple structs to allocate.
46 : x(0), y(0), z(0), w(1) { }
53 : a(1), b(2), c(3), d(4) { }
58 } // anonymous namespace
60 class PODArenaTest : public testing::Test {
63 // Make sure the arena can successfully allocate from more than one
65 TEST_F(PODArenaTest, CanAllocateFromMoreThanOneRegion)
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);
75 // Make sure the arena frees all allocated regions during destruction.
76 TEST_F(PODArenaTest, FreesAllAllocatedRegions)
78 RefPtr<TrackedAllocator> allocator = TrackedAllocator::create();
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);
85 EXPECT_TRUE(allocator->isEmpty());
88 // Make sure the arena runs constructors of the objects allocated within.
89 TEST_F(PODArenaTest, RunsConstructors)
91 RefPtr<PODArena> arena = PODArena::create();
92 for (int i = 0; i < 10000; i++) {
93 TestClass1* tc1 = arena->allocateObject<TestClass1>();
98 TestClass2* tc2 = arena->allocateObject<TestClass2>();
100 EXPECT_EQ(2, tc2->b);
101 EXPECT_EQ(3, tc2->c);
102 EXPECT_EQ(4, tc2->d);
106 } // namespace WebCore