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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "memory_region.h"
#include "gtest/gtest.h"
namespace art {
TEST(MemoryRegion, LoadUnaligned) {
const size_t n = 8;
uint8_t data[n] = { 0, 1, 2, 3, 4, 5, 6, 7 };
MemoryRegion region(&data, n);
ASSERT_EQ(0, region.LoadUnaligned<char>(0));
ASSERT_EQ(1u
+ (2u << kBitsPerByte)
+ (3u << 2 * kBitsPerByte)
+ (4u << 3 * kBitsPerByte),
region.LoadUnaligned<uint32_t>(1));
ASSERT_EQ(5 + (6 << kBitsPerByte), region.LoadUnaligned<int16_t>(5));
ASSERT_EQ(7u, region.LoadUnaligned<unsigned char>(7));
}
TEST(MemoryRegion, StoreUnaligned) {
const size_t n = 8;
uint8_t data[n] = { 0, 0, 0, 0, 0, 0, 0, 0 };
MemoryRegion region(&data, n);
region.StoreUnaligned<unsigned char>(0u, 7);
region.StoreUnaligned<int16_t>(1, 6 + (5 << kBitsPerByte));
region.StoreUnaligned<uint32_t>(3,
4u
+ (3u << kBitsPerByte)
+ (2u << 2 * kBitsPerByte)
+ (1u << 3 * kBitsPerByte));
region.StoreUnaligned<char>(7, 0);
uint8_t expected[n] = { 7, 6, 5, 4, 3, 2, 1, 0 };
for (size_t i = 0; i < n; ++i) {
ASSERT_EQ(expected[i], data[i]);
}
}
} // namespace art
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