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