courgette/third_party/paged_array_unittest.cc

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "courgette/third_party/paged_array.h"
   6
   7 #include "testing/gtest/include/gtest/gtest.h"
   8
   9 class PagedArrayTest : public testing::Test {
  10  public:
  11   // Total allocation of 4GB will fail in 32 bit programs if allocations are
  12   // leaked.
  13   static const int kIterations = 20;
  14   static const int kSize = 200 * 1024 * 1024 / sizeof(int);  // 200MB
  15 };
  16
  17 // AddressSanitizer on Windows adds additional memory overhead, which
  18 // causes these tests to go OOM and fail.
  19 #if !defined(ADDRESS_SANITIZER) || !defined(OS_WIN)
  20 TEST_F(PagedArrayTest, TestManyAllocationsDestructorFree) {
  21   for (int i = 0; i < kIterations; ++i) {
  22     courgette::PagedArray<int> a;
  23     EXPECT_TRUE(a.Allocate(kSize));
  24   }
  25 }
  26
  27 TEST_F(PagedArrayTest, TestManyAllocationsManualFree) {
  28   courgette::PagedArray<int> a;
  29   for (int i = 0; i < kIterations; ++i) {
  30     EXPECT_TRUE(a.Allocate(kSize));
  31     a.clear();
  32   }
  33 }
  34 #endif
  35
  36 TEST_F(PagedArrayTest, TestAccess) {
  37   const int kAccessSize = 3 * 1024 * 1024;
  38   courgette::PagedArray<int> a;
  39   a.Allocate(kAccessSize);
  40   for (int i = 0; i < kAccessSize; ++i) {
  41     a[i] = i;
  42   }
  43   for (int i = 0; i < kAccessSize; ++i) {
  44     EXPECT_EQ(i, a[i]);
  45   }
  46 }