sync/test/engine/test_id_factory.h

   1 // Copyright (c) 2012 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 // A tool making it easier to create IDs for unit testing.
   6
   7 #ifndef SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
   8 #define SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
   9
  10 #include <string>
  11
  12 #include "base/strings/string_number_conversions.h"
  13 #include "sync/syncable/syncable_id.h"
  14
  15 namespace syncer {
  16
  17 class TestIdFactory {
  18  public:
  19   TestIdFactory() : next_value_(1337000) {}
  20   ~TestIdFactory() {}
  21
  22   // Get the root ID.
  23   static syncable::Id root() { return syncable::Id::GetRoot(); }
  24
  25   // Make an ID from a number.  If the number is zero, return the root ID.
  26   // If the number is positive, create a server ID based on the value.  If
  27   // the number is negative, create a local ID based on the value.  This
  28   // is deterministic, and [FromNumber(X) == FromNumber(Y)] iff [X == Y].
  29   static syncable::Id FromNumber(int64 value) {
  30     if (value == 0)
  31       return root();
  32     else if (value < 0)
  33       return syncable::Id::CreateFromClientString(base::Int64ToString(value));
  34     else
  35       return syncable::Id::CreateFromServerId(base::Int64ToString(value));
  36   }
  37
  38   // Create a local ID from a name.
  39   static syncable::Id MakeLocal(std::string name) {
  40     return syncable::Id::CreateFromClientString(std::string("lient ") + name);
  41   }
  42
  43   // Create a server ID from a string name.
  44   static syncable::Id MakeServer(std::string name) {
  45     return syncable::Id::CreateFromServerId(std::string("erver ") + name);
  46   }
  47
  48   // Autogenerate a fresh local ID.
  49   syncable::Id NewLocalId() {
  50     return syncable::Id::CreateFromClientString(
  51         std::string("_auto ") + base::IntToString(-next_value()));
  52   }
  53
  54   // Autogenerate a fresh server ID.
  55   syncable::Id NewServerId() {
  56     return syncable::Id::CreateFromServerId(
  57         std::string("_auto ") + base::IntToString(next_value()));
  58   }
  59
  60  private:
  61   int next_value() {
  62     return next_value_++;
  63   }
  64   int next_value_;
  65 };
  66
  67 }  // namespace syncer
  68
  69 #endif  // SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
  70