src/components/sync_driver/fake_data_type_controller.cc

   1 // Copyright 2014 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 "components/sync_driver/fake_data_type_controller.h"
   6
   7 #include "testing/gmock/include/gmock/gmock.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 using syncer::ModelType;
  11 namespace browser_sync {
  12
  13 FakeDataTypeController::FakeDataTypeController(ModelType type)
  14       : DataTypeController(base::MessageLoopProxy::current(), base::Closure()),
  15         state_(NOT_RUNNING),
  16         model_load_delayed_(false),
  17         type_(type) {}
  18
  19 FakeDataTypeController::~FakeDataTypeController() {
  20 }
  21
  22 // NOT_RUNNING ->MODEL_LOADED |MODEL_STARTING.
  23 void FakeDataTypeController::LoadModels(
  24     const ModelLoadCallback& model_load_callback) {
  25   if (state_ != NOT_RUNNING) {
  26     ADD_FAILURE();
  27     return;
  28   }
  29
  30   if (model_load_delayed_ == false) {
  31     if (load_error_.IsSet())
  32       state_ = DISABLED;
  33     else
  34       state_ = MODEL_LOADED;
  35     model_load_callback.Run(type(), load_error_);
  36   } else {
  37     model_load_callback_ = model_load_callback;
  38     state_ = MODEL_STARTING;
  39   }
  40 }
  41
  42 void FakeDataTypeController::OnModelLoaded() {
  43   NOTREACHED();
  44 }
  45
  46 // MODEL_LOADED -> MODEL_STARTING.
  47 void FakeDataTypeController::StartAssociating(
  48    const StartCallback& start_callback) {
  49   last_start_callback_ = start_callback;
  50   state_ = ASSOCIATING;
  51 }
  52
  53 // MODEL_STARTING | ASSOCIATING -> RUNNING | DISABLED | NOT_RUNNING
  54 // (depending on |result|)
  55 void FakeDataTypeController::FinishStart(StartResult result) {
  56   // We should have a callback from Start().
  57   if (last_start_callback_.is_null()) {
  58     ADD_FAILURE();
  59     return;
  60   }
  61
  62   // Set |state_| first below since the callback may call state().
  63   syncer::SyncMergeResult local_merge_result(type());
  64   syncer::SyncMergeResult syncer_merge_result(type());
  65   if (result <= OK_FIRST_RUN) {
  66     state_ = RUNNING;
  67   } else if (result == ASSOCIATION_FAILED) {
  68     state_ = DISABLED;
  69     local_merge_result.set_error(
  70         syncer::SyncError(FROM_HERE,
  71                           syncer::SyncError::DATATYPE_ERROR,
  72                           "Association failed",
  73                           type()));
  74   } else {
  75     state_ = NOT_RUNNING;
  76     local_merge_result.set_error(
  77         syncer::SyncError(FROM_HERE,
  78                           syncer::SyncError::DATATYPE_ERROR,
  79                           "Fake error",
  80                           type()));
  81   }
  82   StartCallback start_callback = last_start_callback_;
  83   last_start_callback_.Reset();
  84   start_callback.Run(result,
  85                      local_merge_result,
  86                      syncer_merge_result);
  87 }
  88
  89 // * -> NOT_RUNNING
  90 void FakeDataTypeController::Stop() {
  91   state_ = NOT_RUNNING;
  92   if (!model_load_callback_.is_null()) {
  93     // Real data type controllers run the callback and specify "ABORTED" as an
  94     // error.  We should probably find a way to use the real code and mock out
  95     // unnecessary pieces.
  96     SimulateModelLoadFinishing();
  97   }
  98
  99   // The DTM still expects |last_start_callback_| to be called back.
 100   if (!last_start_callback_.is_null()) {
 101     syncer::SyncError error(FROM_HERE,
 102                             syncer::SyncError::DATATYPE_ERROR,
 103                             "Fake error",
 104                             type_);
 105     syncer::SyncMergeResult local_merge_result(type_);
 106     local_merge_result.set_error(error);
 107     last_start_callback_.Run(ABORTED,
 108                              local_merge_result,
 109                              syncer::SyncMergeResult(type_));
 110   }
 111 }
 112
 113 ModelType FakeDataTypeController::type() const {
 114   return type_;
 115 }
 116
 117 std::string FakeDataTypeController::name() const {
 118   return ModelTypeToString(type_);
 119 }
 120
 121 // This isn't called by the DTM.
 122 syncer::ModelSafeGroup FakeDataTypeController::model_safe_group() const {
 123   ADD_FAILURE();
 124   return syncer::GROUP_PASSIVE;
 125 }
 126
 127 DataTypeController::State FakeDataTypeController::state() const {
 128   return state_;
 129 }
 130
 131 void FakeDataTypeController::OnSingleDatatypeUnrecoverableError(
 132     const tracked_objects::Location& from_here,
 133     const std::string& message) {
 134   ADD_FAILURE() << message;
 135 }
 136
 137 void FakeDataTypeController::RecordUnrecoverableError(
 138     const tracked_objects::Location& from_here,
 139     const std::string& message) {
 140   ADD_FAILURE() << message;
 141 }
 142
 143 void FakeDataTypeController::SetDelayModelLoad() {
 144   model_load_delayed_ = true;
 145 }
 146
 147 void FakeDataTypeController::SetModelLoadError(syncer::SyncError error) {
 148   load_error_ = error;
 149 }
 150
 151 void FakeDataTypeController::SimulateModelLoadFinishing() {
 152   ModelLoadCallback model_load_callback = model_load_callback_;
 153   model_load_callback.Run(type(), load_error_);
 154   model_load_callback_.Reset();
 155 }
 156
 157 }  // namespace browser_sync