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 TEST_F(PagedArrayTest, TestManyAllocationsDestructorFree) {
  18   for (int i = 0; i < kIterations; ++i) {
  19     courgette::PagedArray<int> a;
  20     EXPECT_TRUE(a.Allocate(kSize));
  21   }
  22 }
  23
  24 TEST_F(PagedArrayTest, TestManyAllocationsManualFree) {
  25   courgette::PagedArray<int> a;
  26   for (int i = 0; i < kIterations; ++i) {
  27     EXPECT_TRUE(a.Allocate(kSize));
  28     a.clear();
  29   }
  30 }
  31
  32 TEST_F(PagedArrayTest, TestAccess) {
  33   const int kAccessSize = 3 * 1024 * 1024;
  34   courgette::PagedArray<int> a;
  35   a.Allocate(kAccessSize);
  36   for (int i = 0; i < kAccessSize; ++i) {
  37     a[i] = i;
  38   }
  39   for (int i = 0; i < kAccessSize; ++i) {
  40     EXPECT_EQ(i, a[i]);
  41   }
  42 }