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() {
  24     return syncable::Id();
  25   }
  26
  27   // Make an ID from a number.  If the number is zero, return the root ID.
  28   // If the number is positive, create a server ID based on the value.  If
  29   // the number is negative, create a local ID based on the value.  This
  30   // is deterministic, and [FromNumber(X) == FromNumber(Y)] iff [X == Y].
  31   static syncable::Id FromNumber(int64 value) {
  32     if (value == 0)
  33       return root();
  34     else if (value < 0)
  35       return syncable::Id::CreateFromClientString(base::Int64ToString(value));
  36     else
  37       return syncable::Id::CreateFromServerId(base::Int64ToString(value));
  38   }
  39
  40   // Create a local ID from a name.
  41   static syncable::Id MakeLocal(std::string name) {
  42     return syncable::Id::CreateFromClientString(std::string("lient ") + name);
  43   }
  44
  45   // Create a server ID from a string name.
  46   static syncable::Id MakeServer(std::string name) {
  47     return syncable::Id::CreateFromServerId(std::string("erver ") + name);
  48   }
  49
  50   // Autogenerate a fresh local ID.
  51   syncable::Id NewLocalId() {
  52     return syncable::Id::CreateFromClientString(
  53         std::string("_auto ") + base::IntToString(-next_value()));
  54   }
  55
  56   // Autogenerate a fresh server ID.
  57   syncable::Id NewServerId() {
  58     return syncable::Id::CreateFromServerId(
  59         std::string("_auto ") + base::IntToString(next_value()));
  60   }
  61
  62  private:
  63   int next_value() {
  64     return next_value_++;
  65   }
  66   int next_value_;
  67 };
  68
  69 }  // namespace syncer
  70
  71 #endif  // SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
  72