[USS] Implement GetAllData and GetStorageKey.

components/history/core/browser/typed_url_sync_bridge_unittest.cc

Index: components/history/core/browser/typed_url_sync_bridge_unittest.cc
diff --git a/components/history/core/browser/typed_url_sync_bridge_unittest.cc b/components/history/core/browser/typed_url_sync_bridge_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cd47d0c267ac16b81029881fa842d0b8b620c23a
--- /dev/null
+++ b/components/history/core/browser/typed_url_sync_bridge_unittest.cc
@@ -0,0 +1,265 @@
+// Copyright 2017 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/history/core/browser/typed_url_sync_bridge.h"
+
+#include "base/files/scoped_temp_dir.h"
+#include "base/message_loop/message_loop.h"
+#include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "components/history/core/browser/history_backend.h"
+#include "components/history/core/browser/history_backend_client.h"
+#include "components/history/core/browser/history_database_params.h"
+#include "components/history/core/browser/in_memory_history_backend.h"
+#include "components/history/core/test/test_history_database.h"
+#include "components/sync/model/data_batch.h"
+#include "components/sync/model/recording_model_type_change_processor.h"
+#include "components/sync/model/sync_metadata_store.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using sync_pb::TypedUrlSpecifics;
+using syncer::DataBatch;
+using syncer::EntityData;
+using syncer::EntityDataPtr;
+using syncer::KeyAndData;
+using syncer::RecordingModelTypeChangeProcessor;
+
+namespace history {
+
+namespace {
+
+// Visits with this timestamp are treated as expired.
+const int kExpiredVisit = -1;
+
+// Helper constants for tests.
+const char kTitle[] = "pie";
+const char kTitle2[] = "cookie";
+const char kURL[] = "http://pie.com/";
+const char kURL2[] = "http://cookie.com/";
+
+// Create a new row object and the typed visit çorresponding with the time at
+// |last_visit| in the |visits| vector.
+URLRow MakeTypedUrlRow(const std::string& url,
+                       const std::string& title,
+                       int typed_count,
+                       int64_t last_visit,
+                       bool hidden,
+                       VisitVector* visits) {
+  // Give each URL a unique ID, to mimic the behavior of the real database.
+  GURL gurl(url);
+  URLRow history_url(gurl);
+  history_url.set_title(base::UTF8ToUTF16(title));
+  history_url.set_typed_count(typed_count);
+  history_url.set_hidden(hidden);
+
+  base::Time last_visit_time = base::Time::FromInternalValue(last_visit);
+  history_url.set_last_visit(last_visit_time);
+
+  if (typed_count > 0) {
+    // Add a typed visit for time |last_visit|.
+    visits->push_back(VisitRow(history_url.id(), last_visit_time, 0,
+                               ui::PAGE_TRANSITION_TYPED, 0));
+  } else {
+    // Add a non-typed visit for time |last_visit|.
+    visits->push_back(VisitRow(history_url.id(), last_visit_time, 0,
+                               ui::PAGE_TRANSITION_RELOAD, 0));
+  }
+
+  history_url.set_visit_count(visits->size());
+  return history_url;
+}
+
+void VerifyEqual(const TypedUrlSpecifics& s1, const TypedUrlSpecifics& s2) {
+  // Instead of just comparing serialized strings, manually check fields to show
+  // differences on failure.
+  EXPECT_EQ(s1.url(), s2.url());
+  EXPECT_EQ(s1.title(), s2.title());
+  EXPECT_EQ(s1.hidden(), s2.hidden());
+  EXPECT_EQ(s1.visits_size(), s2.visits_size());
+  EXPECT_EQ(s1.visit_transitions_size(), s2.visit_transitions_size());
+  EXPECT_EQ(s1.visits_size(), s1.visit_transitions_size());
+  int size = s1.visits_size();
+  for (int i = 0; i < size; ++i) {
+    EXPECT_EQ(s1.visits(i), s2.visits(i)) << "visits differ at index " << i;
+    EXPECT_EQ(s1.visit_transitions(i), s2.visit_transitions(i))
+        << "visit_transitions differ at index " << i;
+  }
+}
+
+void VerifyDataBatch(std::map<std::string, TypedUrlSpecifics> expected,
+                     std::unique_ptr<DataBatch> batch) {
+  while (batch->HasNext()) {
+    const KeyAndData& pair = batch->Next();
+    auto iter = expected.find(pair.first);
+    ASSERT_NE(iter, expected.end());
+    VerifyEqual(iter->second, pair.second->specifics.typed_url());
+    // Removing allows us to verify we don't see the same item multiple times,
+    // and that we saw everything we expected.
+    expected.erase(iter);
+  }
+  EXPECT_TRUE(expected.empty());
+}
+
+class TestHistoryBackendDelegate : public HistoryBackend::Delegate {
+ public:
+  TestHistoryBackendDelegate() {}
+
+  void NotifyProfileError(sql::InitStatus init_status,
+                          const std::string& diagnostics) override {}
+  void SetInMemoryBackend(
+      std::unique_ptr<InMemoryHistoryBackend> backend) override{};
+  void NotifyFaviconsChanged(const std::set<GURL>& page_urls,
+                             const GURL& icon_url) override{};
+  void NotifyURLVisited(ui::PageTransition transition,
+                        const URLRow& row,
+                        const RedirectList& redirects,
+                        base::Time visit_time) override{};
+  void NotifyURLsModified(const URLRows& changed_urls) override{};
+  void NotifyURLsDeleted(bool all_history,
+                         bool expired,
+                         const URLRows& deleted_rows,
+                         const std::set<GURL>& favicon_urls) override{};
+  void NotifyKeywordSearchTermUpdated(const URLRow& row,
+                                      KeywordID keyword_id,
+                                      const base::string16& term) override{};
+  void NotifyKeywordSearchTermDeleted(URLID url_id) override{};
+  void DBLoaded() override{};
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestHistoryBackendDelegate);
+};
+
+class TestHistoryBackend : public HistoryBackend {
+ public:
+  TestHistoryBackend()
+      : HistoryBackend(new TestHistoryBackendDelegate(),
+                       nullptr,
+                       base::ThreadTaskRunnerHandle::Get()) {}
+
+  bool IsExpiredVisitTime(const base::Time& time) override {
+    return time.ToInternalValue() == kExpiredVisit;
+  }
+
+  URLID GetIdByUrl(const GURL& gurl) {
+    return db()->GetRowForURL(gurl, nullptr);
+  }
+
+  void SetVisitsForUrl(URLRow& new_url, const VisitVector visits) {
+    std::vector<history::VisitInfo> added_visits;
+    URLRows new_urls;
+    DeleteURL(new_url.url());
+    for (const auto& visit : visits) {
+      added_visits.push_back(
+          history::VisitInfo(visit.visit_time, visit.transition));
+    }
+    new_urls.push_back(new_url);
+    AddPagesWithDetails(new_urls, history::SOURCE_SYNCED);
+    AddVisits(new_url.url(), added_visits, history::SOURCE_SYNCED);
+    new_url.set_id(GetIdByUrl(new_url.url()));
+  }
+
+ private:
+  ~TestHistoryBackend() override {}
+};
+
+}  // namespace
+
+class TypedURLSyncBridgeTest : public testing::Test {
+ public:
+  TypedURLSyncBridgeTest() : typed_url_sync_bridge_(NULL) {}
+  ~TypedURLSyncBridgeTest() override {}
+
+  void SetUp() override {
+    fake_history_backend_ = new TestHistoryBackend();
+    ASSERT_TRUE(test_dir_.CreateUniqueTempDir());
+    fake_history_backend_->Init(
+        false, TestHistoryDatabaseParamsForPath(test_dir_.GetPath()));
+    std::unique_ptr<TypedURLSyncBridge> bridge =
+        base::MakeUnique<TypedURLSyncBridge>(
+            fake_history_backend_.get(), fake_history_backend_->db(),
+            RecordingModelTypeChangeProcessor::FactoryForBridgeTest(&processor_,
+                                                                    false));
+    typed_url_sync_bridge_ = bridge.get();
+    fake_history_backend_->SetTypedURLSyncBridge(std::move(bridge));
+  }
+
+  void TearDown() override { fake_history_backend_->Closing(); }
+
+  // Fills |specifics| with the sync data for |url| and |visits|.
+  static bool WriteToTypedUrlSpecifics(const URLRow& url,
+                                       const VisitVector& visits,
+                                       sync_pb::TypedUrlSpecifics* specifics);
+
+  std::string GetStorageKey(const TypedUrlSpecifics& specifics) {
+    std::string key =
+        bridge()->GetStorageKey(SpecificsToEntity(specifics).value());
+    EXPECT_FALSE(key.empty());
+    return key;
+  }
+
+  EntityDataPtr SpecificsToEntity(const TypedUrlSpecifics& specifics) {
+    EntityData data;
+    data.client_tag_hash = "ignored";
+    *data.specifics.mutable_typed_url() = specifics;
+    return data.PassToPtr();
+  }
+
+  std::map<std::string, TypedUrlSpecifics> ExpectedMap(
+      const std::vector<TypedUrlSpecifics>& specifics_vector) {
+    std::map<std::string, TypedUrlSpecifics> map;
+    for (const auto& specifics : specifics_vector) {
+      map[GetStorageKey(specifics)] = specifics;
+    }
+    return map;
+  }
+
+  void VerifyLocalHistoryData(const std::vector<TypedUrlSpecifics>& expected) {
+    bridge()->GetAllData(base::Bind(&VerifyDataBatch, ExpectedMap(expected)));
+  }
+
+  TypedURLSyncBridge* bridge() { return typed_url_sync_bridge_; }
+
+  TypedURLSyncMetadataDatabase* metadata_store() {
+    return bridge()->sync_metadata_database_;
+  }
+
+  const RecordingModelTypeChangeProcessor& processor() { return *processor_; }
+
+ protected:
+  base::MessageLoop message_loop_;
+  base::ScopedTempDir test_dir_;
+  scoped_refptr<TestHistoryBackend> fake_history_backend_;
+  TypedURLSyncBridge* typed_url_sync_bridge_;
+  // A non-owning pointer to the processor given to the bridge. Will be null
+  // before being given to the bridge, to make ownership easier.
+  RecordingModelTypeChangeProcessor* processor_ = nullptr;
+};
+
+// Static.
+bool TypedURLSyncBridgeTest::WriteToTypedUrlSpecifics(

[pavely, 2017/06/01 20:49:18]

You could have inlined this method along with the rest of TypedURLSyncBridgeTest
methods.

[Gang Wu, 2017/06/02 00:00:24]

Done.

+    const URLRow& url,
+    const VisitVector& visits,
+    sync_pb::TypedUrlSpecifics* specifics) {
+  return TypedURLSyncBridge::WriteToTypedUrlSpecifics(url, visits, specifics);
+}
+
+// Add two typed urls locally and verify bridge can get them from GetAllData.
+TEST_F(TypedURLSyncBridgeTest, GetAllData) {
+  // Add two urls to backend.
+  VisitVector visits1, visits2;
+  URLRow row1 = MakeTypedUrlRow(kURL, kTitle, 1, 3, false, &visits1);
+  URLRow row2 = MakeTypedUrlRow(kURL2, kTitle2, 2, 4, false, &visits2);
+  fake_history_backend_->SetVisitsForUrl(row1, visits1);
+  fake_history_backend_->SetVisitsForUrl(row2, visits2);
+
+  // Create the same data in sync.
+  sync_pb::TypedUrlSpecifics typed_url1, typed_url2;
+  WriteToTypedUrlSpecifics(row1, visits1, &typed_url1);
+  WriteToTypedUrlSpecifics(row2, visits2, &typed_url2);
+
+  // Check that the local cache was is still correct.

[pavely, 2017/06/01 20:49:18]

remove "was".

[Gang Wu, 2017/06/02 00:00:24]

Done.

+  VerifyLocalHistoryData({typed_url1, typed_url2});
+}
+
+}  // namespace history