content/common/indexed_db/indexed_db_key_unittest.cc

   1 // Copyright 2013 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 <vector>
   6
   7 #include "base/basictypes.h"
   8 #include "base/strings/string16.h"
   9 #include "content/common/indexed_db/indexed_db_key.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace content {
  13
  14 namespace {
  15
  16 TEST(IndexedDBKeyTest, KeySizeEstimates) {
  17   std::vector<IndexedDBKey> keys;
  18   std::vector<size_t> estimates;
  19
  20   keys.push_back(IndexedDBKey());
  21   estimates.push_back(16u);  // Overhead.
  22
  23   keys.push_back(IndexedDBKey(blink::WebIDBKeyTypeNull));
  24   estimates.push_back(16u);
  25
  26   double number = 3.14159;
  27   keys.push_back(IndexedDBKey(number, blink::WebIDBKeyTypeNumber));
  28   estimates.push_back(24u);  // Overhead + sizeof(double).
  29
  30   double date = 1370884329.0;
  31   keys.push_back(IndexedDBKey(date, blink::WebIDBKeyTypeDate));
  32   estimates.push_back(24u);  // Overhead + sizeof(double).
  33
  34   const base::string16 string(1024, static_cast<base::char16>('X'));
  35   keys.push_back(IndexedDBKey(string));
  36   // Overhead + string length * sizeof(base::char16).
  37   estimates.push_back(2064u);
  38
  39   const size_t array_size = 1024;
  40   IndexedDBKey::KeyArray array;
  41   double value = 123.456;
  42   for (size_t i = 0; i < array_size; ++i) {
  43     array.push_back(IndexedDBKey(value, blink::WebIDBKeyTypeNumber));
  44   }
  45   keys.push_back(IndexedDBKey(array));
  46   // Overhead + array length * (Overhead + sizeof(double)).
  47   estimates.push_back(24592u);
  48
  49   ASSERT_EQ(keys.size(), estimates.size());
  50   for (size_t i = 0; i < keys.size(); ++i) {
  51     EXPECT_EQ(estimates[i], keys[i].size_estimate());
  52   }
  53 }
  54
  55 }  // namespace
  56
  57 }  // namespace content