[USS] Impelementation for GetData and GetAllData

components/autofill/core/browser/webdata/autocomplete_sync_bridge_unittest.cc

+// 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 "components/autofill/core/browser/webdata/autocomplete_sync_bridge.h"
+
+#include "base/bind.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/ptr_util.h"
+#include "base/run_loop.h"
+#include "base/strings/stringprintf.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "components/autofill/core/browser/webdata/autofill_table.h"
+#include "components/autofill/core/browser/webdata/autofill_webdata_backend.h"
+#include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
+#include "components/sync/model/data_batch.h"
+#include "components/sync/model/fake_model_type_change_processor.h"
+#include "components/sync/model/metadata_batch.h"
+#include "components/webdata/common/web_database.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using sync_pb::AutofillSpecifics;
+using syncer::SyncError;
+
+namespace autofill {
+
+namespace {
+
+const char kNameFormat[] = "name %d";
+const char kValueFormat[] = "value %d";
+
+void VerifyEqual(const AutofillSpecifics& s1, const AutofillSpecifics& s2) {
+  EXPECT_EQ(s1.SerializeAsString(), s2.SerializeAsString());
+}
+
+void VerifyDataBatch(std::map<std::string, AutofillSpecifics> expected,
+                     SyncError error,
+                     std::unique_ptr<syncer::DataBatch> batch) {
+  EXPECT_FALSE(error.IsSet());
+  while (batch->HasNext()) {
+    const syncer::KeyAndData& pair = batch->Next();
+    auto iter = expected.find(pair.first);
+    ASSERT_NE(iter, expected.end());
+    VerifyEqual(iter->second, pair.second->specifics.autofill());
+    // 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());
+}
+
+std::unique_ptr<syncer::ModelTypeChangeProcessor>
+CreateModelTypeChangeProcessor(syncer::ModelType type,
+                               syncer::ModelTypeSyncBridge* bridge) {
+  return base::MakeUnique<syncer::FakeModelTypeChangeProcessor>();
+}
+
+class FakeAutofillBackend : public AutofillWebDataBackend {
+ public:
+  FakeAutofillBackend() {}
+  ~FakeAutofillBackend() override {}
+  WebDatabase* GetDatabase() override { return db_; }
+  void AddObserver(
+      autofill::AutofillWebDataServiceObserverOnDBThread* observer) override {}
+  void RemoveObserver(
+      autofill::AutofillWebDataServiceObserverOnDBThread* observer) override {}
+  void RemoveExpiredFormElements() override {}
+  void NotifyOfMultipleAutofillChanges() override {}
+  void NotifyThatSyncHasStarted(syncer::ModelType model_type) override {}
+  void SetWebDatabase(WebDatabase* db) { db_ = db; }
+
+ private:
+  WebDatabase* db_;
+};
+
+}  // namespace
+
+class AutocompleteSyncBridgeTest : public testing::Test {
+ public:
+  AutocompleteSyncBridgeTest() {}
+  ~AutocompleteSyncBridgeTest() override {}
+
+ protected:
+  AutocompleteSyncBridge* bridge() { return bridge_.get(); }
+
+  void SaveSpecificsToTable(
+      const std::vector<AutofillSpecifics>& specifics_list) {
+    std::vector<AutofillEntry> new_entries;
+    for (const auto& specifics : specifics_list) {
+      new_entries.push_back(
+          AutocompleteSyncBridge::CreateAutofillEntry(specifics));
+    }
+    table_.UpdateAutofillEntries(new_entries);
+  }
+
+  AutofillSpecifics CreateSpecifics(int suffix) {
+    AutofillSpecifics specifics;
+    specifics.set_name(base::StringPrintf(kNameFormat, suffix));
+    specifics.set_value(base::StringPrintf(kValueFormat, suffix));
+    specifics.add_usage_timestamp(0);
+    return specifics;
+  }
+
+  std::string GetStorageKey(const AutofillSpecifics& specifics) {
+    return AutocompleteSyncBridge::FormatStorageKey(specifics.name(),

[vabr (Chromium), 2016/12/21 08:48:07]

Could you use some of the public-facing methods based on FormatStorageKey
instead?

[Gang Wu, 2016/12/22 01:33:54]

Done.

+                                                    specifics.value());
+  }
+
+  void SetUp() override {
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());

[vabr (Chromium), 2016/12/21 08:48:07]

Could the work of SetUp be done in the constructor instead?

The constructor is generally preferred, see
https://github.com/google/googletest/blob/master/googletest/docs/V1_7_FAQ.md#...
and
https://groups.google.com/a/chromium.org/forum/#!msg/chromium-dev/J2K-2Dmupb8...

[Gang Wu, 2016/12/22 01:33:53]

Done.

+    file_ = temp_dir_.GetPath().AppendASCII("SyncTestWebDatabase");
+
+    db_.AddTable(&table_);
+    ASSERT_EQ(sql::INIT_OK, db_.Init(file_));
+    backend_.SetWebDatabase(&db_);
+
+    bridge_.reset(new AutocompleteSyncBridge(
+        &backend_, base::Bind(&CreateModelTypeChangeProcessor)));
+  }
+
+ private:
+  base::FilePath file_;
+  base::MessageLoop message_loop_;
+  base::ScopedTempDir temp_dir_;
+  FakeAutofillBackend backend_;
+  AutofillTable table_;
+  WebDatabase db_;
+  std::unique_ptr<AutocompleteSyncBridge> bridge_;

[vabr (Chromium), 2016/12/21 08:48:07]

Please #include <memory> for this.

[Gang Wu, 2016/12/22 01:33:53]

Done.

+
+  DISALLOW_COPY_AND_ASSIGN(AutocompleteSyncBridgeTest);

[vabr (Chromium), 2016/12/21 08:48:07]

Please #include "base/macros.h" for this.

[Gang Wu, 2016/12/22 01:33:54]

Done.

+};
+
+TEST_F(AutocompleteSyncBridgeTest, GetData) {
+  const AutofillSpecifics specifics1 = CreateSpecifics(1);
+  const AutofillSpecifics specifics2 = CreateSpecifics(2);
+  const AutofillSpecifics specifics3 = CreateSpecifics(3);
+  SaveSpecificsToTable({specifics1, specifics2, specifics3});
+
+  const std::map<std::string, AutofillSpecifics> expected{
+      {GetStorageKey(specifics1), specifics1},
+      {GetStorageKey(specifics3), specifics3}};
+  bridge()->GetData({GetStorageKey(specifics1), GetStorageKey(specifics3)},
+                    base::Bind(&VerifyDataBatch, expected));
+}
+
+TEST_F(AutocompleteSyncBridgeTest, GetDataNotExist) {
+  const AutofillSpecifics specifics1 = CreateSpecifics(1);
+  const AutofillSpecifics specifics2 = CreateSpecifics(2);
+  const AutofillSpecifics specifics3 = CreateSpecifics(3);
+  SaveSpecificsToTable({specifics1, specifics2});
+
+  const std::map<std::string, AutofillSpecifics> expected{
+      {GetStorageKey(specifics1), specifics1},
+      {GetStorageKey(specifics2), specifics2}};
+  bridge()->GetData({GetStorageKey(specifics1), GetStorageKey(specifics2),
+                     GetStorageKey(specifics3)},
+                    base::Bind(&VerifyDataBatch, expected));
+}
+
+TEST_F(AutocompleteSyncBridgeTest, GetAllData) {
+  const AutofillSpecifics specifics1 = CreateSpecifics(1);
+  const AutofillSpecifics specifics2 = CreateSpecifics(2);
+  const AutofillSpecifics specifics3 = CreateSpecifics(3);
+  SaveSpecificsToTable({specifics1, specifics2, specifics3});
+
+  const std::map<std::string, AutofillSpecifics> expected{
+      {GetStorageKey(specifics1), specifics1},
+      {GetStorageKey(specifics2), specifics2},
+      {GetStorageKey(specifics3), specifics3}};
+  bridge()->GetAllData(base::Bind(&VerifyDataBatch, expected));
+}
+
+}  // namespace autofill