[Offline Pages] Create a event/activity logger

components/offline_pages/background/request_coordinator_event_logger_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/offline_pages/background/request_coordinator_event_logger.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace offline_pages {
+
+namespace {
+
+const char kNamespace[] = "last_n";
+const char kStatus[] = "pending";
+const char kId[] = "foo";
+
+} // namespace

[fgorski, 2016/06/24 18:17:33]

nit: we use two spaces after }

}  // 

[chili, 2016/06/24 20:30:10]

Done.

+
+TEST(RequestCoordinatorEventLoggerTest, RecordsWhenLoggingIsOn) {
+  RequestCoordinatorEventLogger logger;
+  std::vector<std::string> log;
+
+  logger.SetIsLogging(true);
+  logger.RecordSavePageRequestUpdated(kNamespace, kStatus, kId);
+  logger.GetLogs(log);
+
+  EXPECT_EQ(1, log.size());
+}
+
+TEST(RequestCoordinatorEventLoggerTest, RecordsWhenLoggingIsOff) {
+  RequestCoordinatorEventLogger logger;
+  std::vector<std::string> log;
+
+  logger.SetIsLogging(false);
+  logger.RecordSavePageRequestUpdated(kNamespace, kStatus, kId);
+  logger.GetLogs(log);
+
+  EXPECT_EQ(1, log.size());
+}
+
+TEST(RequestCoordinatorEventLoggerTest, DoesNotExceedMaxSize) {
+  RequestCoordinatorEventLogger logger;
+  std::vector<std::string> log;
+
+  logger.SetIsLogging(true);
+  for (int i = 0; i < kMaxLogCount + 1; ++i) {
+    logger.RecordSavePageRequestUpdated(kNamespace, kStatus, kId);
+  }
+  logger.GetLogs(log);
+
+  EXPECT_EQ(kMaxLogCount, log.size());
+}
+
+} // namespace offline_internals

[fgorski, 2016/06/24 18:17:33]

please update to }  // (two spaces)
and fix the namespace name

[chili, 2016/06/24 20:30:10]

Done.