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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/memory/aligned_memory.h"
#include "base/memory/scoped_ptr.h"
#include "testing/gtest/include/gtest/gtest.h"
#define EXPECT_ALIGNED(ptr, align) \
EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1))
namespace {
using base::AlignedMemory;
TEST(AlignedMemoryTest, StaticAlignment) {
static AlignedMemory<8, 8> raw8;
static AlignedMemory<8, 16> raw16;
static AlignedMemory<8, 256> raw256;
static AlignedMemory<8, 4096> raw4096;
EXPECT_EQ(8u, ALIGNOF(raw8));
EXPECT_EQ(16u, ALIGNOF(raw16));
EXPECT_EQ(256u, ALIGNOF(raw256));
EXPECT_EQ(4096u, ALIGNOF(raw4096));
EXPECT_ALIGNED(raw8.void_data(), 8);
EXPECT_ALIGNED(raw16.void_data(), 16);
EXPECT_ALIGNED(raw256.void_data(), 256);
EXPECT_ALIGNED(raw4096.void_data(), 4096);
}
TEST(AlignedMemoryTest, StackAlignment) {
AlignedMemory<8, 8> raw8;
AlignedMemory<8, 16> raw16;
AlignedMemory<8, 256> raw256;
EXPECT_EQ(8u, ALIGNOF(raw8));
EXPECT_EQ(16u, ALIGNOF(raw16));
EXPECT_EQ(256u, ALIGNOF(raw256));
EXPECT_ALIGNED(raw8.void_data(), 8);
EXPECT_ALIGNED(raw16.void_data(), 16);
EXPECT_ALIGNED(raw256.void_data(), 256);
// TODO(ios): This test hits an armv7 bug in clang. crbug.com/138066
#if !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
AlignedMemory<8, 4096> raw4096;
EXPECT_EQ(4096u, ALIGNOF(raw4096));
EXPECT_ALIGNED(raw4096.void_data(), 4096);
#endif // !(defined(OS_IOS) && defined(ARCH_CPU_ARM_FAMILY))
}
} // namespace
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