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      1 /*
      2  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #include "webrtc/system_wrappers/include/aligned_array.h"
     12 
     13 #include <stdint.h>
     14 
     15 #include "testing/gtest/include/gtest/gtest.h"
     16 
     17 namespace {
     18 
     19 bool IsAligned(const void* ptr, size_t alignment) {
     20   return reinterpret_cast<uintptr_t>(ptr) % alignment == 0;
     21 }
     22 
     23 }  // namespace
     24 
     25 namespace webrtc {
     26 
     27 TEST(AlignedArrayTest, CheckAlignment) {
     28   AlignedArray<bool> arr(10, 7, 128);
     29   ASSERT_TRUE(IsAligned(arr.Array(), 128));
     30   for (size_t i = 0; i < 10; ++i) {
     31     ASSERT_TRUE(IsAligned(arr.Row(i), 128));
     32     ASSERT_EQ(arr.Row(i), arr.Array()[i]);
     33   }
     34 }
     35 
     36 TEST(AlignedArrayTest, CheckOverlap) {
     37   AlignedArray<size_t> arr(10, 7, 128);
     38 
     39   for (size_t i = 0; i < 10; ++i) {
     40     for (size_t j = 0; j < 7; ++j) {
     41       arr.At(i, j) = 20 * i + j;
     42     }
     43   }
     44 
     45   for (size_t i = 0; i < 10; ++i) {
     46     for (size_t j = 0; j < 7; ++j) {
     47       ASSERT_EQ(arr.At(i, j), 20 * i + j);
     48       ASSERT_EQ(arr.Row(i)[j], 20 * i + j);
     49       ASSERT_EQ(arr.Array()[i][j], 20 * i + j);
     50     }
     51   }
     52 }
     53 
     54 TEST(AlignedArrayTest, CheckRowsCols) {
     55   AlignedArray<bool> arr(10, 7, 128);
     56   ASSERT_EQ(arr.rows(), 10u);
     57   ASSERT_EQ(arr.cols(), 7u);
     58 }
     59 
     60 }  // namespace webrtc
     61