[Offline pages] Refactoring helper classes out from offline_page_model_unittest.cc

components/offline_pages/offline_page_test_store.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_test_store.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace offline_pages {
+
+OfflinePageTestStore::OfflinePageTestStore(
+    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner)
+    : task_runner_(task_runner), scenario_(TestScenario::SUCCESSFUL) {}
+
+OfflinePageTestStore::OfflinePageTestStore(
+    const OfflinePageTestStore& other_store)
+    : task_runner_(other_store.task_runner_),
+      scenario_(other_store.scenario_),
+      offline_pages_(other_store.offline_pages_) {}
+
+OfflinePageTestStore::~OfflinePageTestStore() {}
+
+void OfflinePageTestStore::Load(const LoadCallback& callback) {
+  OfflinePageMetadataStore::LoadStatus load_status;
+  if (scenario_ != TestScenario::LOAD_FAILED) {

[jianli, 2015/12/07 23:19:01]

suggest to flip the if test for easier understanding:
  if (scenario_ == TestScenario::LOAD_FAILED) {
    ...
  } else {
    ...
  }

[fgorski, 2015/12/08 00:33:56]

Done.

+    load_status = OfflinePageMetadataStore::LOAD_SUCCEEDED;
+  } else {
+    load_status = OfflinePageMetadataStore::STORE_LOAD_FAILED;
+    offline_pages_.clear();
+  }
+  task_runner_->PostTask(FROM_HERE,
+                         base::Bind(callback, load_status, offline_pages_));
+}
+
+void OfflinePageTestStore::AddOrUpdateOfflinePage(
+    const OfflinePageItem& offline_page,
+    const UpdateCallback& callback) {
+  last_saved_page_ = offline_page;
+  bool result = scenario_ != TestScenario::WRITE_FAILED;
+  if (result) {

[jianli, 2015/12/07 23:19:01]

nit: brackets not needed

[fgorski, 2015/12/08 00:33:56]

Done.

+    offline_pages_.push_back(offline_page);
+  }
+  task_runner_->PostTask(FROM_HERE, base::Bind(callback, result));
+}
+
+void OfflinePageTestStore::RemoveOfflinePages(
+    const std::vector<int64>& bookmark_ids,
+    const UpdateCallback& callback) {
+  ASSERT_FALSE(bookmark_ids.empty());
+  bool result = false;
+  if (scenario_ != TestScenario::REMOVE_FAILED) {
+    for (auto iter = offline_pages_.begin(); iter != offline_pages_.end();
+         ++iter) {
+      if (iter->bookmark_id == bookmark_ids[0]) {
+        offline_pages_.erase(iter);
+        result = true;
+        break;
+      }
+    }
+  }
+
+  task_runner_->PostTask(FROM_HERE, base::Bind(callback, result));
+}
+
+void OfflinePageTestStore::Reset(const ResetCallback& callback) {
+  offline_pages_.clear();
+  task_runner_->PostTask(FROM_HERE, base::Bind(callback, true));
+}
+
+void OfflinePageTestStore::UpdateLastAccessTime(
+    int64 bookmark_id,
+    const base::Time& last_access_time) {
+  for (auto& offline_page : offline_pages_) {
+    if (offline_page.bookmark_id == bookmark_id) {
+      offline_page.last_access_time = last_access_time;
+      return;
+    }
+  }
+}
+
+}  // namespace offline_pages