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// Copyright (c) 2012 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 "chrome/browser/chromeos/drive/event_logger.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace drive {
TEST(DriveEventLoggerTest, BasicLogging) {
EventLogger logger(3); // At most 3 events are kept.
EXPECT_EQ(0U, logger.history().size());
logger.Log("first");
logger.Log("second");
logger.Log("third");
// Events are recorded in the chronological order with sequential IDs.
ASSERT_EQ(3U, logger.history().size());
EXPECT_EQ(0, logger.history()[0].id);
EXPECT_EQ(std::string("first"), logger.history()[0].what);
EXPECT_EQ(1, logger.history()[1].id);
EXPECT_EQ(std::string("second"), logger.history()[1].what);
EXPECT_EQ(2, logger.history()[2].id);
EXPECT_EQ(std::string("third"), logger.history()[2].what);
logger.Log("fourth");
// It does not log events beyond the specified.
ASSERT_EQ(3U, logger.history().size());
// The oldest events is pushed out.
EXPECT_EQ(1, logger.history()[0].id);
EXPECT_EQ(std::string("second"), logger.history()[0].what);
EXPECT_EQ(2, logger.history()[1].id);
EXPECT_EQ(std::string("third"), logger.history()[1].what);
EXPECT_EQ(3, logger.history()[2].id);
EXPECT_EQ(std::string("fourth"), logger.history()[2].what);
}
} // namespace drive
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