[rac] Temporarily copy libaddressinput to Chrome.

third_party/libaddressinput/chromium/cpp/test/retriever_test.cc

+// Copyright (C) 2013 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "retriever.h"
+
+#include <libaddressinput/callback.h>
+#include <libaddressinput/downloader.h>
+#include <libaddressinput/util/scoped_ptr.h>
+
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include "fake_downloader.h"
+#include "fake_storage.h"
+#include "region_data_constants.h"
+
+namespace {
+
+using i18n::addressinput::BuildCallback;
+using i18n::addressinput::Downloader;
+using i18n::addressinput::FakeDownloader;
+using i18n::addressinput::FakeStorage;
+using i18n::addressinput::RegionDataConstants;
+using i18n::addressinput::Retriever;
+using i18n::addressinput::scoped_ptr;
+
+const char kKey[] = "data/CA/AB--fr";
+
+// Empty data that the downloader can return.
+const char kEmptyData[] = "{}";
+
+// Tests for Retriever object.
+class RetrieverTest : public testing::Test {
+ protected:
+  RetrieverTest()
+      : retriever_(FakeDownloader::kFakeDataUrl,
+                   new FakeDownloader,
+                   new FakeStorage),
+        success_(false),
+        key_(),
+        data_() {}
+
+  virtual ~RetrieverTest() {}
+
+  Retriever::Callback* BuildCallback() {
+    return ::BuildCallback(this, &RetrieverTest::OnDataReady);
+  }
+
+  Retriever retriever_;
+  bool success_;
+  std::string key_;
+  std::string data_;
+
+ private:
+  void OnDataReady(bool success,
+                   const std::string& key,
+                   const std::string& data) {
+    success_ = success;
+    key_ = key;
+    data_ = data;
+  }
+};
+
+TEST_F(RetrieverTest, RetrieveData) {
+  scoped_ptr<Retriever::Callback> callback(BuildCallback());
+  retriever_.Retrieve(kKey, *callback);
+
+  EXPECT_TRUE(success_);
+  EXPECT_EQ(kKey, key_);
+  EXPECT_FALSE(data_.empty());
+  EXPECT_NE(kEmptyData, data_);
+}
+
+TEST_F(RetrieverTest, ReadDataFromStorage) {
+  scoped_ptr<Retriever::Callback> callback1(BuildCallback());
+  retriever_.Retrieve(kKey, *callback1);
+
+  scoped_ptr<Retriever::Callback> callback2(BuildCallback());
+  retriever_.Retrieve(kKey, *callback2);
+
+  EXPECT_TRUE(success_);
+  EXPECT_EQ(kKey, key_);
+  EXPECT_FALSE(data_.empty());
+  EXPECT_NE(kEmptyData, data_);
+}
+
+TEST_F(RetrieverTest, MissingKeyReturnsEmptyData) {
+  static const char kMissingKey[] = "junk";
+
+  scoped_ptr<Retriever::Callback> callback(BuildCallback());
+  retriever_.Retrieve(kMissingKey, *callback);
+
+  EXPECT_TRUE(success_);
+  EXPECT_EQ(kMissingKey, key_);
+  EXPECT_EQ(kEmptyData, data_);
+}
+
+// The downloader that always fails.
+class FaultyDownloader : public Downloader {
+ public:
+  FaultyDownloader() {}
+  virtual ~FaultyDownloader() {}
+
+  // Downloader implementation.
+  virtual void Download(const std::string& url,
+                        const Callback& downloaded) const {
+    downloaded(false, url, "garbage");
+  }
+};
+
+TEST_F(RetrieverTest, FaultyDownloader) {
+  Retriever bad_retriever(FakeDownloader::kFakeDataUrl,
+                          new FaultyDownloader,
+                          new FakeStorage);
+
+  scoped_ptr<Retriever::Callback> callback(BuildCallback());
+  bad_retriever.Retrieve(kKey, *callback);
+
+  EXPECT_FALSE(success_);
+  EXPECT_EQ(kKey, key_);
+  EXPECT_TRUE(data_.empty());
+}
+
+}  // namespace