[Offline pages] Resetting offline page metadata store if initial load fails

components/offline_pages/offline_page_model_impl_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/offline_pages/offline_page_model_impl.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <utility>
 
@@ skipping 570 matching lines @@
 }
 
 TEST_F(OfflinePageModelImplTest, GetAllPagesStoreFailure) {
   GetStore()->set_test_scenario(
       OfflinePageTestStore::TestScenario::LOAD_FAILED);
   const std::vector<OfflinePageItem>& offline_pages = GetAllPages();
 
   EXPECT_EQ(0UL, offline_pages.size());
 }
 
+TEST_F(OfflinePageModelImplTest, ResetStoreSuccess) {
+  GetStore()->set_test_scenario(
+      OfflinePageTestStore::TestScenario::RESET_SUCCESS);
+  ResetModel();
+  const std::vector<OfflinePageItem>& offline_pages = GetAllPages();
+
+  EXPECT_EQ(0UL, offline_pages.size());
+  EXPECT_TRUE(GetStore()->reset_called());
+  EXPECT_EQ(StoreState::LOADED, GetStore()->state());
+}
+
+TEST_F(OfflinePageModelImplTest, ResetStoreFailed) {
+  GetStore()->set_test_scenario(
+      OfflinePageTestStore::TestScenario::RESET_FAILED);
+  ResetModel();
+  const std::vector<OfflinePageItem>& offline_pages = GetAllPages();
+
+  EXPECT_EQ(0UL, offline_pages.size());
+  EXPECT_TRUE(GetStore()->reset_called());
+  EXPECT_EQ(StoreState::FAILED_RESET, GetStore()->state());
+}
+
 TEST_F(OfflinePageModelImplTest, DeletePageSuccessful) {
   OfflinePageTestStore* store = GetStore();
 
   // Save one page.
   SavePage(kTestUrl, kTestClientId1);
   int64_t offline1 = last_save_offline_id();
   EXPECT_EQ(SavePageResult::SUCCESS, last_save_result());
   EXPECT_EQ(1u, store->GetAllPages().size());
 
   ResetResults();
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   // Check if feature is correctly enabled by command-line flag.
   scoped_feature_list.reset(new base::test::ScopedFeatureList);
   scoped_feature_list->InitFromCommandLine(
       std::string(kOfflineBookmarksFeature.name) + "," +
           kOfflinePagesSharingFeature.name,
       "");
   EXPECT_TRUE(offline_pages::IsOfflinePagesSharingEnabled());
 }
 
 }  // namespace offline_pages