Add Store+Sync to reading list.

ios/chrome/browser/reading_list/reading_list_store_unittest.cc

Index: ios/chrome/browser/reading_list/reading_list_store_unittest.cc
diff --git a/ios/chrome/browser/reading_list/reading_list_store_unittest.cc b/ios/chrome/browser/reading_list/reading_list_store_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..df24e06119dbc86b989332867e1b1ea15f9f7533
--- /dev/null
+++ b/ios/chrome/browser/reading_list/reading_list_store_unittest.cc
@@ -0,0 +1,224 @@
+// Copyright 2016 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 "ios/chrome/browser/reading_list/reading_list_store.h"
+
+#include <map>
+#include <set>
+
+#include "base/bind.h"
+#include "base/memory/ptr_util.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "components/sync/model/fake_model_type_change_processor.h"
+#include "components/sync/model/model_type_store_test_util.h"
+#include "ios/chrome/browser/reading_list/reading_list_model_impl.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class FakeModelTypeChangeProcessorObserver {
+ public:
+  virtual void Put(const std::string& client_tag,
+                   std::unique_ptr<syncer::EntityData> entity_data,
+                   syncer::MetadataChangeList* metadata_change_list) = 0;
+
+  virtual void Delete(const std::string& client_tag,
+                      syncer::MetadataChangeList* metadata_change_list) = 0;
+};
+
+class TestModelTypeChangeProcessor
+    : public syncer::FakeModelTypeChangeProcessor {
+ public:
+  void SetObserver(FakeModelTypeChangeProcessorObserver* observer) {
+    observer_ = observer;
+  }
+
+  void Put(const std::string& client_tag,
+           std::unique_ptr<syncer::EntityData> entity_data,
+           syncer::MetadataChangeList* metadata_change_list) override {
+    observer_->Put(client_tag, std::move(entity_data), metadata_change_list);
+  }
+
+  void Delete(const std::string& client_tag,
+              syncer::MetadataChangeList* metadata_change_list) override {
+    observer_->Delete(client_tag, metadata_change_list);
+  }
+
+ private:
+  FakeModelTypeChangeProcessorObserver* observer_;
+};
+
+class ReadingListStoreTest : public testing::Test,
+                             public FakeModelTypeChangeProcessorObserver,
+                             public ReadingListStoreDelegate {
+ protected:
+  ReadingListStoreTest()
+      : store_(syncer::ModelTypeStoreTestUtil::CreateInMemoryStoreForTest()) {
+    ClearState();
+    reading_list_store_ = base::MakeUnique<ReadingListStore>(
+        base::Bind(&syncer::ModelTypeStoreTestUtil::MoveStoreToCallback,
+                   base::Passed(&store_)),
+        base::Bind(&ReadingListStoreTest::CreateModelTypeChangeProcessor,
+                   base::Unretained(this)));
+    model_ = base::MakeUnique<ReadingListModelImpl>(nullptr, nullptr);
+    reading_list_store_->SetReadingListModel(model_.get(), this);
+
+    base::RunLoop().RunUntilIdle();
+  }
+
+  std::unique_ptr<syncer::ModelTypeChangeProcessor>
+  CreateModelTypeChangeProcessor(syncer::ModelType type,
+                                 syncer::ModelTypeSyncBridge* service) {
+    auto processor = base::MakeUnique<TestModelTypeChangeProcessor>();
+    processor->SetObserver(this);
+    return processor;
+  }
+
+  void Put(const std::string& storage_key,
+           std::unique_ptr<syncer::EntityData> entity_data,
+           syncer::MetadataChangeList* metadata_changes) override {
+    put_multimap_.insert(std::make_pair(storage_key, std::move(entity_data)));
+    put_called_++;
+  }
+
+  void Delete(const std::string& storage_key,
+              syncer::MetadataChangeList* metadata_changes) override {
+    delete_set_.insert(storage_key);
+    delete_called_++;
+  }
+
+  void AssertCounts(int put_called,
+                    int delete_called,
+                    int sync_add_called,
+                    int sync_remove_called) {
+    EXPECT_EQ(put_called, put_called_);
+    EXPECT_EQ(delete_called, delete_called_);
+    EXPECT_EQ(sync_add_called, sync_add_called_);
+    EXPECT_EQ(sync_remove_called, sync_remove_called_);
+  }
+
+  void ClearState() {
+    delete_called_ = 0;
+    put_called_ = 0;
+    delete_set_.clear();
+    put_multimap_.clear();
+    sync_add_called_ = 0;
+    sync_remove_called_ = 0;
+    sync_added_.clear();
+    sync_removed_.clear();
+  }
+
+  // These three mathods handle callbacks from a ReadingListStore.
+  void StoreLoaded(std::unique_ptr<ReadingListEntries> unread,
+                   std::unique_ptr<ReadingListEntries> read) override {}
+
+  // Handle sync events.
+  void SyncAddEntry(std::unique_ptr<ReadingListEntry> entry,
+                    bool read) override {
+    sync_add_called_++;
+    sync_added_[entry->URL().spec()] = read;
+  }
+
+  void SyncRemoveEntry(const GURL& gurl) override {
+    sync_remove_called_++;
+    sync_removed_.insert(gurl.spec());
+  }
+
+  // In memory model type store needs a MessageLoop.
+  base::MessageLoop message_loop_;
+
+  std::unique_ptr<syncer::ModelTypeStore> store_;
+  std::unique_ptr<ReadingListModelImpl> model_;
+  std::unique_ptr<ReadingListStore> reading_list_store_;
+  int put_called_;
+  int delete_called_;
+  int sync_add_called_;
+  int sync_remove_called_;
+  std::map<std::string, std::unique_ptr<syncer::EntityData>> put_multimap_;
+  std::set<std::string> delete_set_;
+  std::map<std::string, bool> sync_added_;
+  std::set<std::string> sync_removed_;
+};
+
+TEST_F(ReadingListStoreTest, CheckEmpties) {
+  EXPECT_EQ(0ul, model_->unread_size());
+  EXPECT_EQ(0ul, model_->read_size());
+}
+
+TEST_F(ReadingListStoreTest, SaveOneRead) {
+  ReadingListEntry entry(GURL("http://read.example.com/"), "read title");
+  reading_list_store_->SaveEntry(entry, true, false);
+  AssertCounts(1, 0, 0, 0);
+  syncer::EntityData* data = put_multimap_["http://read.example.com/"].get();
+  const sync_pb::ReadingListSpecifics& specifics =
+      data->specifics.reading_list();
+  EXPECT_EQ(specifics.title(), "read title");
+  EXPECT_EQ(specifics.url(), "http://read.example.com/");
+  EXPECT_EQ(specifics.status(), sync_pb::ReadingListSpecifics::READ);
+}
+
+TEST_F(ReadingListStoreTest, SaveOneUnread) {
+  ReadingListEntry entry(GURL("http://unread.example.com/"), "unread title");
+  reading_list_store_->SaveEntry(entry, false, false);
+  AssertCounts(1, 0, 0, 0);
+  syncer::EntityData* data = put_multimap_["http://unread.example.com/"].get();
+  const sync_pb::ReadingListSpecifics& specifics =
+      data->specifics.reading_list();
+  EXPECT_EQ(specifics.title(), "unread title");
+  EXPECT_EQ(specifics.url(), "http://unread.example.com/");
+  EXPECT_EQ(specifics.status(), sync_pb::ReadingListSpecifics::UNREAD);
+}
+
+TEST_F(ReadingListStoreTest, SyncMergeOneEntry) {
+  syncer::EntityDataMap remote_input;
+  ReadingListEntry entry(GURL("http://read.example.com/"), "read title");
+  std::unique_ptr<sync_pb::ReadingListSpecifics> specifics =
+      entry.AsReadingListSpecifics(true);
+
+  syncer::EntityData data;
+  data.client_tag_hash = "http://read.example.com/";
+  *data.specifics.mutable_reading_list() = *specifics;
+
+  remote_input["http://read.example.com/"] = data.PassToPtr();
+
+  std::unique_ptr<syncer::MetadataChangeList> metadata_changes(
+      reading_list_store_->CreateMetadataChangeList());
+  const syncer::SyncError error = reading_list_store_->MergeSyncData(
+      std::move(metadata_changes), remote_input);
+  AssertCounts(0, 0, 1, 0);
+  EXPECT_EQ(sync_added_.size(), 1u);
+  EXPECT_EQ(sync_added_.count("http://read.example.com/"), 1u);
+  EXPECT_EQ(sync_added_["http://read.example.com/"], true);
+}
+
+TEST_F(ReadingListStoreTest, ApplySyncChangesOneAdd) {
+  syncer::EntityDataMap remote_input;
+  ReadingListEntry entry(GURL("http://read.example.com/"), "read title");
+  std::unique_ptr<sync_pb::ReadingListSpecifics> specifics =
+      entry.AsReadingListSpecifics(true);
+  syncer::EntityData data;
+  data.client_tag_hash = "http://read.example.com/";
+  *data.specifics.mutable_reading_list() = *specifics;
+
+  syncer::EntityChangeList add_changes;
+
+  add_changes.push_back(syncer::EntityChange::CreateAdd(
+      "http://read.example.com/", data.PassToPtr()));
+  syncer::SyncError error = reading_list_store_->ApplySyncChanges(
+      reading_list_store_->CreateMetadataChangeList(), add_changes);
+  AssertCounts(0, 0, 1, 0);
+  EXPECT_EQ(sync_added_.size(), 1u);
+  EXPECT_EQ(sync_added_.count("http://read.example.com/"), 1u);
+  EXPECT_EQ(sync_added_["http://read.example.com/"], true);
+}
+
+TEST_F(ReadingListStoreTest, ApplySyncChangesOneRemove) {
+  syncer::EntityChangeList delete_changes;
+  delete_changes.push_back(
+      syncer::EntityChange::CreateDelete("http://read.example.com/"));
+  syncer::SyncError error = reading_list_store_->ApplySyncChanges(
+      reading_list_store_->CreateMetadataChangeList(), delete_changes);
+  AssertCounts(0, 0, 0, 1);
+  EXPECT_EQ(sync_removed_.size(), 1u);
+  EXPECT_EQ(sync_removed_.count("http://read.example.com/"), 1u);
+}