src/ui/app_list/app_list_model_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 "ui/app_list/app_list_model.h"
   6
   7 #include <map>
   8 #include <string>
   9
  10 #include "base/command_line.h"
  11 #include "base/strings/utf_string_conversions.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "ui/app_list/app_list_folder_item.h"
  14 #include "ui/app_list/app_list_item.h"
  15 #include "ui/app_list/app_list_model_observer.h"
  16 #include "ui/app_list/app_list_switches.h"
  17 #include "ui/app_list/test/app_list_test_model.h"
  18 #include "ui/base/models/list_model_observer.h"
  19
  20 namespace app_list {
  21
  22 namespace {
  23
  24 class TestObserver : public AppListModelObserver {
  25  public:
  26   TestObserver()
  27       : status_changed_count_(0),
  28         items_added_(0),
  29         items_removed_(0),
  30         items_updated_(0) {
  31   }
  32   ~TestObserver() override {}
  33
  34   // AppListModelObserver
  35   void OnAppListModelStatusChanged() override { ++status_changed_count_; }
  36
  37   void OnAppListItemAdded(AppListItem* item) override { items_added_++; }
  38
  39   void OnAppListItemWillBeDeleted(AppListItem* item) override {
  40     items_removed_++;
  41   }
  42
  43   void OnAppListItemUpdated(AppListItem* item) override { items_updated_++; }
  44
  45   int status_changed_count() const { return status_changed_count_; }
  46   size_t items_added() { return items_added_; }
  47   size_t items_removed() { return items_removed_; }
  48   size_t items_updated() { return items_updated_; }
  49
  50   void ResetCounts() {
  51     status_changed_count_ = 0;
  52     items_added_ = 0;
  53     items_removed_ = 0;
  54     items_updated_ = 0;
  55   }
  56
  57  private:
  58   int status_changed_count_;
  59   size_t items_added_;
  60   size_t items_removed_;
  61   size_t items_updated_;
  62
  63   DISALLOW_COPY_AND_ASSIGN(TestObserver);
  64 };
  65
  66 }  // namespace
  67
  68 class AppListModelTest : public testing::Test {
  69  public:
  70   AppListModelTest() {}
  71   ~AppListModelTest() override {}
  72
  73   // testing::Test overrides:
  74   void SetUp() override { model_.AddObserver(&observer_); }
  75   void TearDown() override { model_.RemoveObserver(&observer_); }
  76
  77  protected:
  78   bool ItemObservedByFolder(AppListFolderItem* folder,
  79                             AppListItem* item) {
  80     return item->observers_.HasObserver(folder->folder_image());
  81   }
  82
  83   std::string GetItemListContents(AppListItemList* item_list) {
  84     std::string s;
  85     for (size_t i = 0; i < item_list->item_count(); ++i) {
  86       if (i != 0)
  87         s += ",";
  88       s += item_list->item_at(i)->id();
  89     }
  90     return s;
  91   }
  92
  93   std::string GetModelContents() {
  94     return GetItemListContents(model_.top_level_item_list());
  95   }
  96
  97   test::AppListTestModel model_;
  98   TestObserver observer_;
  99
 100  private:
 101   DISALLOW_COPY_AND_ASSIGN(AppListModelTest);
 102 };
 103
 104 TEST_F(AppListModelTest, SetStatus) {
 105   EXPECT_EQ(AppListModel::STATUS_NORMAL, model_.status());
 106   model_.SetStatus(AppListModel::STATUS_SYNCING);
 107   EXPECT_EQ(1, observer_.status_changed_count());
 108   EXPECT_EQ(AppListModel::STATUS_SYNCING, model_.status());
 109   model_.SetStatus(AppListModel::STATUS_NORMAL);
 110   EXPECT_EQ(2, observer_.status_changed_count());
 111   // Set the same status, no change is expected.
 112   model_.SetStatus(AppListModel::STATUS_NORMAL);
 113   EXPECT_EQ(2, observer_.status_changed_count());
 114 }
 115
 116 TEST_F(AppListModelTest, AppsObserver) {
 117   const size_t num_apps = 2;
 118   model_.PopulateApps(num_apps);
 119   EXPECT_EQ(num_apps, observer_.items_added());
 120 }
 121
 122 TEST_F(AppListModelTest, ModelGetItem) {
 123   const size_t num_apps = 2;
 124   model_.PopulateApps(num_apps);
 125   AppListItem* item0 = model_.top_level_item_list()->item_at(0);
 126   ASSERT_TRUE(item0);
 127   EXPECT_EQ(model_.GetItemName(0), item0->id());
 128   AppListItem* item1 = model_.top_level_item_list()->item_at(1);
 129   ASSERT_TRUE(item1);
 130   EXPECT_EQ(model_.GetItemName(1), item1->id());
 131 }
 132
 133 TEST_F(AppListModelTest, ModelFindItem) {
 134   const size_t num_apps = 2;
 135   model_.PopulateApps(num_apps);
 136   std::string item_name0 = model_.GetItemName(0);
 137   AppListItem* item0 = model_.FindItem(item_name0);
 138   ASSERT_TRUE(item0);
 139   EXPECT_EQ(item_name0, item0->id());
 140   std::string item_name1 = model_.GetItemName(1);
 141   AppListItem* item1 = model_.FindItem(item_name1);
 142   ASSERT_TRUE(item1);
 143   EXPECT_EQ(item_name1, item1->id());
 144 }
 145
 146 TEST_F(AppListModelTest, SetItemPosition) {
 147   const size_t num_apps = 2;
 148   model_.PopulateApps(num_apps);
 149   // Adding another item will add it to the end.
 150   model_.CreateAndAddItem("Added Item 1");
 151   ASSERT_EQ(num_apps + 1, model_.top_level_item_list()->item_count());
 152   EXPECT_EQ("Added Item 1",
 153             model_.top_level_item_list()->item_at(num_apps)->id());
 154   // Add an item between items 0 and 1.
 155   AppListItem* item0 = model_.top_level_item_list()->item_at(0);
 156   ASSERT_TRUE(item0);
 157   AppListItem* item1 = model_.top_level_item_list()->item_at(1);
 158   ASSERT_TRUE(item1);
 159   AppListItem* item2 = model_.CreateItem("Added Item 2");
 160   model_.AddItem(item2);
 161   EXPECT_EQ("Item 0,Item 1,Added Item 1,Added Item 2", GetModelContents());
 162   model_.SetItemPosition(
 163       item2, item0->position().CreateBetween(item1->position()));
 164   EXPECT_EQ(num_apps + 2, model_.top_level_item_list()->item_count());
 165   EXPECT_EQ(num_apps + 2, observer_.items_added());
 166   EXPECT_EQ("Item 0,Added Item 2,Item 1,Added Item 1", GetModelContents());
 167 }
 168
 169 TEST_F(AppListModelTest, ModelMoveItem) {
 170   const size_t num_apps = 3;
 171   model_.PopulateApps(num_apps);
 172   // Adding another item will add it to the end.
 173   model_.CreateAndAddItem("Inserted Item");
 174   ASSERT_EQ(num_apps + 1, model_.top_level_item_list()->item_count());
 175   // Move it to the position 1.
 176   observer_.ResetCounts();
 177   model_.top_level_item_list()->MoveItem(num_apps, 1);
 178   EXPECT_EQ(1u, observer_.items_updated());
 179   EXPECT_EQ("Item 0,Inserted Item,Item 1,Item 2", GetModelContents());
 180 }
 181
 182 TEST_F(AppListModelTest, ModelRemoveItem) {
 183   const size_t num_apps = 4;
 184   model_.PopulateApps(num_apps);
 185   // Remove an item in the middle.
 186   model_.DeleteItem(model_.GetItemName(1));
 187   EXPECT_EQ(num_apps - 1, model_.top_level_item_list()->item_count());
 188   EXPECT_EQ(1u, observer_.items_removed());
 189   EXPECT_EQ("Item 0,Item 2,Item 3", GetModelContents());
 190   // Remove the first item in the list.
 191   model_.DeleteItem(model_.GetItemName(0));
 192   EXPECT_EQ(num_apps - 2, model_.top_level_item_list()->item_count());
 193   EXPECT_EQ(2u, observer_.items_removed());
 194   EXPECT_EQ("Item 2,Item 3", GetModelContents());
 195   // Remove the last item in the list.
 196   model_.DeleteItem(model_.GetItemName(num_apps - 1));
 197   EXPECT_EQ(num_apps - 3, model_.top_level_item_list()->item_count());
 198   EXPECT_EQ(3u, observer_.items_removed());
 199   EXPECT_EQ("Item 2", GetModelContents());
 200 }
 201
 202 TEST_F(AppListModelTest, AppOrder) {
 203   const size_t num_apps = 5;
 204   model_.PopulateApps(num_apps);
 205   // Ensure order is preserved.
 206   for (size_t i = 1; i < num_apps; ++i) {
 207     EXPECT_TRUE(
 208         model_.top_level_item_list()->item_at(i)->position().GreaterThan(
 209             model_.top_level_item_list()->item_at(i - 1)->position()));
 210   }
 211   // Move an app
 212   model_.top_level_item_list()->MoveItem(num_apps - 1, 1);
 213   // Ensure order is preserved.
 214   for (size_t i = 1; i < num_apps; ++i) {
 215     EXPECT_TRUE(
 216         model_.top_level_item_list()->item_at(i)->position().GreaterThan(
 217             model_.top_level_item_list()->item_at(i - 1)->position()));
 218   }
 219 }
 220
 221 class AppListModelFolderTest : public AppListModelTest {
 222  public:
 223   AppListModelFolderTest() {
 224     model_.SetFoldersEnabled(true);
 225   }
 226   ~AppListModelFolderTest() override {}
 227
 228   // testing::Test overrides:
 229   void SetUp() override { AppListModelTest::SetUp(); }
 230   void TearDown() override { AppListModelTest::TearDown(); }
 231
 232  private:
 233   DISALLOW_COPY_AND_ASSIGN(AppListModelFolderTest);
 234 };
 235
 236 TEST_F(AppListModelFolderTest, FolderItem) {
 237   AppListFolderItem* folder =
 238       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 239   const size_t num_folder_apps = 8;
 240   const size_t num_observed_apps = 4;
 241   model_.AddItem(folder);
 242   for (int i = 0; static_cast<size_t>(i) < num_folder_apps; ++i) {
 243     std::string name = model_.GetItemName(i);
 244     model_.AddItemToFolder(model_.CreateItem(name), folder->id());
 245   }
 246   ASSERT_EQ(num_folder_apps, folder->item_list()->item_count());
 247   // Check that items 0 and 3 are observed.
 248   EXPECT_TRUE(ItemObservedByFolder(
 249       folder, folder->item_list()->item_at(0)));
 250   EXPECT_TRUE(ItemObservedByFolder(
 251       folder, folder->item_list()->item_at(num_observed_apps - 1)));
 252   // Check that item 4 is not observed.
 253   EXPECT_FALSE(ItemObservedByFolder(
 254       folder, folder->item_list()->item_at(num_observed_apps)));
 255   folder->item_list()->MoveItem(num_observed_apps, 0);
 256   // Confirm that everything was moved where expected.
 257   EXPECT_EQ(model_.GetItemName(num_observed_apps),
 258             folder->item_list()->item_at(0)->id());
 259   EXPECT_EQ(model_.GetItemName(0),
 260             folder->item_list()->item_at(1)->id());
 261   EXPECT_EQ(model_.GetItemName(num_observed_apps - 1),
 262             folder->item_list()->item_at(num_observed_apps)->id());
 263   // Check that items 0 and 3 are observed.
 264   EXPECT_TRUE(ItemObservedByFolder(
 265       folder, folder->item_list()->item_at(0)));
 266   EXPECT_TRUE(ItemObservedByFolder(
 267       folder, folder->item_list()->item_at(num_observed_apps - 1)));
 268   // Check that item 4 is not observed.
 269   EXPECT_FALSE(ItemObservedByFolder(
 270       folder, folder->item_list()->item_at(num_observed_apps)));
 271 }
 272
 273 TEST_F(AppListModelFolderTest, MergeItems) {
 274   model_.PopulateApps(3);
 275   ASSERT_EQ(3u, model_.top_level_item_list()->item_count());
 276   AppListItem* item0 = model_.top_level_item_list()->item_at(0);
 277   AppListItem* item1 = model_.top_level_item_list()->item_at(1);
 278   AppListItem* item2 = model_.top_level_item_list()->item_at(2);
 279
 280   // Merge an item onto a non-existent target.
 281   EXPECT_EQ(std::string(), model_.MergeItems("nonexistent", item0->id()));
 282   ASSERT_EQ(3u, model_.top_level_item_list()->item_count());
 283
 284   // Merge a non-existent item onto a target.
 285   EXPECT_EQ(std::string(), model_.MergeItems(item0->id(), "nonexistent"));
 286   ASSERT_EQ(3u, model_.top_level_item_list()->item_count());
 287
 288   // Merge an item onto itself (should have no effect). This should not be
 289   // possible, but there have been bugs in the past that made it possible (see
 290   // http://crbug.com/415530), so it should be handled correctly.
 291   EXPECT_EQ(std::string(), model_.MergeItems(item0->id(), item0->id()));
 292   ASSERT_EQ(3u, model_.top_level_item_list()->item_count());
 293
 294   // Merge two items.
 295   std::string folder1_id = model_.MergeItems(item0->id(), item1->id());
 296   ASSERT_EQ(2u, model_.top_level_item_list()->item_count());  // Folder + 1 item
 297   AppListFolderItem* folder1_item = model_.FindFolderItem(folder1_id);
 298   ASSERT_TRUE(folder1_item);
 299   EXPECT_EQ("Item 0,Item 1", GetItemListContents(folder1_item->item_list()));
 300
 301   // Merge an item onto an item that is already in a folder (should have no
 302   // effect). This should not be possible, but it should be handled correctly
 303   // if it does happen.
 304   EXPECT_EQ(std::string(), model_.MergeItems(item1->id(), item2->id()));
 305   ASSERT_EQ(2u, model_.top_level_item_list()->item_count());  // Folder + 1 item
 306   EXPECT_EQ("Item 0,Item 1", GetItemListContents(folder1_item->item_list()));
 307
 308   // Merge an item from the new folder into the third item.
 309   std::string folder2_id = model_.MergeItems(item2->id(), item1->id());
 310   ASSERT_EQ(2u, model_.top_level_item_list()->item_count());  // 2 folders
 311   AppListFolderItem* folder2_item = model_.FindFolderItem(folder2_id);
 312   EXPECT_EQ("Item 0", GetItemListContents(folder1_item->item_list()));
 313   EXPECT_EQ("Item 2,Item 1", GetItemListContents(folder2_item->item_list()));
 314
 315   // Merge the remaining item to the new folder, ensure it is added to the end.
 316   std::string folder_id = model_.MergeItems(folder2_id, item0->id());
 317   EXPECT_EQ(folder2_id, folder_id);
 318   EXPECT_EQ("Item 2,Item 1,Item 0",
 319             GetItemListContents(folder2_item->item_list()));
 320
 321   // The empty folder should be deleted.
 322   folder1_item = model_.FindFolderItem(folder1_id);
 323   EXPECT_FALSE(folder1_item);
 324   EXPECT_EQ(1u, model_.top_level_item_list()->item_count());  // 1 folder
 325 }
 326
 327 TEST_F(AppListModelFolderTest, AddItemToFolder) {
 328   AppListFolderItem* folder =
 329       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 330   model_.AddItem(folder);
 331   AppListItem* item0 = new AppListItem("Item 0");
 332   model_.AddItemToFolder(item0, folder->id());
 333   ASSERT_EQ(1u, model_.top_level_item_list()->item_count());
 334   AppListFolderItem* folder_item = model_.FindFolderItem(folder->id());
 335   ASSERT_TRUE(folder_item);
 336   ASSERT_EQ(1u, folder_item->item_list()->item_count());
 337   EXPECT_EQ(item0, folder_item->item_list()->item_at(0));
 338   EXPECT_EQ(folder->id(), item0->folder_id());
 339 }
 340
 341 TEST_F(AppListModelFolderTest, MoveItemToFolder) {
 342   AppListFolderItem* folder =
 343       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 344   model_.AddItem(folder);
 345   AppListItem* item0 = new AppListItem("Item 0");
 346   AppListItem* item1 = new AppListItem("Item 1");
 347   model_.AddItem(item0);
 348   model_.AddItem(item1);
 349   ASSERT_EQ(3u, model_.top_level_item_list()->item_count());
 350   // Move item0 and item1 to folder.
 351   std::string folder_id = folder->id();
 352   model_.MoveItemToFolder(item0, folder_id);
 353   model_.MoveItemToFolder(item1, folder_id);
 354   AppListFolderItem* folder_item = model_.FindFolderItem(folder_id);
 355   ASSERT_TRUE(folder_item);
 356   EXPECT_EQ(folder_id, item0->folder_id());
 357   EXPECT_EQ(folder_id, item1->folder_id());
 358   EXPECT_EQ("Item 0,Item 1", GetItemListContents(folder_item->item_list()));
 359   // Move item0 out of folder.
 360   model_.MoveItemToFolder(item0, "");
 361   EXPECT_EQ("", item0->folder_id());
 362   folder_item = model_.FindFolderItem(folder_id);
 363   ASSERT_TRUE(folder_item);
 364   // Move item1 out of folder, folder should be deleted.
 365   model_.MoveItemToFolder(item1, "");
 366   EXPECT_EQ("", item1->folder_id());
 367   folder_item = model_.FindFolderItem(folder_id);
 368   EXPECT_FALSE(folder_item);
 369 }
 370
 371 TEST_F(AppListModelFolderTest, MoveItemToFolderAt) {
 372   model_.AddItem(new AppListItem("Item 0"));
 373   model_.AddItem(new AppListItem("Item 1"));
 374   AppListFolderItem* folder1 = static_cast<AppListFolderItem*>(model_.AddItem(
 375       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL)));
 376   model_.AddItem(new AppListItem("Item 2"));
 377   model_.AddItem(new AppListItem("Item 3"));
 378   ASSERT_EQ(5u, model_.top_level_item_list()->item_count());
 379   EXPECT_EQ("Item 0,Item 1,folder1,Item 2,Item 3", GetModelContents());
 380   // Move Item 1 to folder1, then Item 2 before Item 1.
 381   model_.MoveItemToFolderAt(model_.top_level_item_list()->item_at(1),
 382                             folder1->id(),
 383                             syncer::StringOrdinal());
 384   EXPECT_EQ("Item 0,folder1,Item 2,Item 3", GetModelContents());
 385   model_.MoveItemToFolderAt(model_.top_level_item_list()->item_at(2),
 386                             folder1->id(),
 387                             folder1->item_list()->item_at(0)->position());
 388   EXPECT_EQ("Item 2,Item 1", GetItemListContents(folder1->item_list()));
 389   EXPECT_EQ("Item 0,folder1,Item 3", GetModelContents());
 390   // Move Item 2 out of folder to before folder.
 391   model_.MoveItemToFolderAt(
 392       folder1->item_list()->item_at(0), "", folder1->position());
 393   EXPECT_EQ("Item 0,Item 2,folder1,Item 3", GetModelContents());
 394   // Move remaining folder item, (Item 1) out of folder to folder position.
 395   ASSERT_EQ(1u, folder1->item_list()->item_count());
 396   model_.MoveItemToFolderAt(
 397       folder1->item_list()->item_at(0), "", folder1->position());
 398   EXPECT_EQ("Item 0,Item 2,Item 1,Item 3", GetModelContents());
 399 }
 400
 401 TEST_F(AppListModelFolderTest, MoveItemFromFolderToFolder) {
 402   AppListFolderItem* folder0 =
 403       new AppListFolderItem("folder0", AppListFolderItem::FOLDER_TYPE_NORMAL);
 404   AppListFolderItem* folder1 =
 405       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 406   model_.AddItem(folder0);
 407   model_.AddItem(folder1);
 408   EXPECT_EQ("folder0,folder1", GetModelContents());
 409   AppListItem* item0 = new AppListItem("Item 0");
 410   AppListItem* item1 = new AppListItem("Item 1");
 411   model_.AddItemToFolder(item0, folder0->id());
 412   model_.AddItemToFolder(item1, folder0->id());
 413   EXPECT_EQ(folder0->id(), item0->folder_id());
 414   EXPECT_EQ(folder0->id(), item1->folder_id());
 415   EXPECT_EQ("Item 0,Item 1", GetItemListContents(folder0->item_list()));
 416
 417   // Move item0 from folder0 to folder1.
 418   model_.MoveItemToFolder(item0, folder1->id());
 419   ASSERT_EQ(1u, folder0->item_list()->item_count());
 420   ASSERT_EQ(1u, folder1->item_list()->item_count());
 421   EXPECT_EQ(folder1->id(), item0->folder_id());
 422   EXPECT_EQ("Item 1", GetItemListContents(folder0->item_list()));
 423   EXPECT_EQ("Item 0", GetItemListContents(folder1->item_list()));
 424
 425   // Move item1 from folder0 to folder1. folder0 should get deleted.
 426   model_.MoveItemToFolder(item1, folder1->id());
 427   ASSERT_EQ(1u, model_.top_level_item_list()->item_count());
 428   ASSERT_EQ(2u, folder1->item_list()->item_count());
 429   EXPECT_EQ(folder1->id(), item1->folder_id());
 430   EXPECT_EQ("Item 0,Item 1", GetItemListContents(folder1->item_list()));
 431
 432   // Move item1 to a non-existant folder2 which should get created.
 433   model_.MoveItemToFolder(item1, "folder2");
 434   ASSERT_EQ(2u, model_.top_level_item_list()->item_count());
 435   ASSERT_EQ(1u, folder1->item_list()->item_count());
 436   EXPECT_EQ("folder2", item1->folder_id());
 437   AppListFolderItem* folder2 = model_.FindFolderItem("folder2");
 438   ASSERT_TRUE(folder2);
 439 }
 440
 441 TEST_F(AppListModelFolderTest, FindItemInFolder) {
 442   AppListFolderItem* folder =
 443       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 444   EXPECT_TRUE(folder);
 445   model_.AddItem(folder);
 446   std::string folder_id = folder->id();
 447   AppListItem* item0 = new AppListItem("Item 0");
 448   model_.AddItemToFolder(item0, folder_id);
 449   AppListItem* found_item = model_.FindItem(item0->id());
 450   ASSERT_EQ(item0, found_item);
 451   EXPECT_EQ(folder_id, found_item->folder_id());
 452 }
 453
 454 TEST_F(AppListModelFolderTest, OemFolder) {
 455   AppListFolderItem* folder =
 456       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_OEM);
 457   model_.AddItem(folder);
 458   std::string folder_id = folder->id();
 459
 460   // Should not be able to move to an OEM folder with MergeItems.
 461   AppListItem* item0 = new AppListItem("Item 0");
 462   model_.AddItem(item0);
 463   syncer::StringOrdinal item0_pos = item0->position();
 464   std::string new_folder = model_.MergeItems(folder_id, item0->id());
 465   EXPECT_EQ("", new_folder);
 466   EXPECT_EQ("", item0->folder_id());
 467   EXPECT_TRUE(item0->position().Equals(item0_pos));
 468
 469   // Should not be able to move from an OEM folder with MoveItemToFolderAt.
 470   AppListItem* item1 = new AppListItem("Item 1");
 471   model_.AddItemToFolder(item1, folder_id);
 472   syncer::StringOrdinal item1_pos = item1->position();
 473   bool move_res = model_.MoveItemToFolderAt(item1, "", syncer::StringOrdinal());
 474   EXPECT_FALSE(move_res);
 475   EXPECT_TRUE(item1->position().Equals(item1_pos));
 476 }
 477
 478 TEST_F(AppListModelFolderTest, DisableFolders) {
 479   // Set up a folder with two items and an OEM folder with one item.
 480   AppListFolderItem* folder =
 481       new AppListFolderItem("folder1", AppListFolderItem::FOLDER_TYPE_NORMAL);
 482   model_.AddItem(folder);
 483   std::string folder_id = folder->id();
 484   AppListItem* item0 = new AppListItem("Item 0");
 485   model_.AddItemToFolder(item0, folder_id);
 486   AppListItem* item1 = new AppListItem("Item 1");
 487   model_.AddItemToFolder(item1, folder_id);
 488   AppListFolderItem* folder_item = model_.FindFolderItem(folder_id);
 489   ASSERT_TRUE(folder_item);
 490   EXPECT_EQ(2u, folder_item->item_list()->item_count());
 491   AppListFolderItem* oem_folder =
 492       new AppListFolderItem("oem_folder", AppListFolderItem::FOLDER_TYPE_OEM);
 493   model_.AddItem(oem_folder);
 494   AppListItem* oem_item = new AppListItem("OEM Item");
 495   std::string oem_folder_id = oem_folder->id();
 496   model_.AddItemToFolder(oem_item, oem_folder_id);
 497   EXPECT_EQ("folder1,oem_folder", GetModelContents());
 498
 499   // Disable folders. Ensure non-oem folder is removed.
 500   model_.SetFoldersEnabled(false);
 501   ASSERT_FALSE(model_.FindFolderItem(folder_id));
 502   ASSERT_TRUE(model_.FindFolderItem(oem_folder_id));
 503   EXPECT_EQ("Item 0,Item 1,oem_folder", GetModelContents());
 504
 505   // Ensure folder creation fails.
 506   EXPECT_EQ(std::string(), model_.MergeItems(item0->id(), item1->id()));
 507 }
 508
 509 }  // namespace app_list