[rac] Use stale libaddressinput data if download fails

third_party/libaddressinput/chromium/cpp/test/wrapper_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 "wrapper.h"
+
+#include <cstddef>
+#include <ctime>
+#include <string>
+
+#include <gtest/gtest.h>
+
+#include "time_to_string.h"
+
+namespace {
+
+using i18n::addressinput::TimeToString;
+using i18n::addressinput::Wrapper;
+
+static const char kData[] = "{'foo': 'bar'}";
+static const char kChecksum[] = "dd63dafcbd4d5b28badfcaf86fb6fcdb";
+
+TEST(WrapperTest, UnwrappedDataSameAsOriginal) {
+  std::string data = Wrapper::Wrap(kData);
+  EXPECT_NE(kData, data);
+  double age_in_seconds = 0.0;
+  EXPECT_TRUE(Wrapper::Unwrap(&data, &age_in_seconds));
+  EXPECT_EQ(kData, data);
+}
+
+TEST(WrapperTest, OldTimestampReturnsTrue) {
+  std::string negative_timestamp = std::string("timestamp=0\nchecksum=") +
+      kChecksum + "\n" + kData;
+  double age_in_seconds = 0.0;
+  EXPECT_TRUE(Wrapper::Unwrap(&negative_timestamp, &age_in_seconds));
+}
+
+TEST(WrapperTest, WrongChecksumReturnsFalse) {
+  std::string wrong_checksum = std::string("timestamp=123\nchecksum=123\n") +
+      kData;
+  double age_in_seconds = 0.0;
+  EXPECT_FALSE(Wrapper::Unwrap(&wrong_checksum, &age_in_seconds));
+}
+
+TEST(WrapperTest, NoDataReturnsFalse) {
+  std::string no_data = "timestamp=123";
+  double age_in_seconds = 0.0;
+  EXPECT_FALSE(Wrapper::Unwrap(&no_data, &age_in_seconds));
+  no_data = std::string("timestamp=123\nchecksum=") + kChecksum;
+  EXPECT_FALSE(Wrapper::Unwrap(&no_data, &age_in_seconds));
+}
+
+TEST(WrapperTest, NegativeTimestampReturnsFalse) {
+  std::string negative_timestamp = std::string("timestamp=-1\nchecksum=") +
+      kChecksum + "\n" + kData;
+  double age_in_seconds = 0.0;
+  EXPECT_FALSE(Wrapper::Unwrap(&negative_timestamp, &age_in_seconds));
+}
+
+TEST(WrapperTest, FutureTimestampReturnsFalse) {
+  std::string future_timestamp = "timestamp=" +
+      TimeToString(time(NULL) + 10000) + "\nchecksum=" + kChecksum + "\n" +
+      kData;
+  double age_in_seconds = 0.0;
+  EXPECT_FALSE(Wrapper::Unwrap(&future_timestamp, &age_in_seconds));
+}
+
+}  // namespace