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// Copyright 2013 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/ui/webui/ntp/ntp_user_data_logger.h"
#include "base/metrics/histogram.h"
#include "base/metrics/statistics_recorder.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/ntp_logging_events.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class TestNTPUserDataLogger : public NTPUserDataLogger {
public:
TestNTPUserDataLogger() : NTPUserDataLogger(NULL) {}
~TestNTPUserDataLogger() override {}
};
base::HistogramBase::Count GetTotalCount(const std::string& histogram_name) {
base::HistogramBase* histogram = base::StatisticsRecorder::FindHistogram(
histogram_name);
// Return 0 if history is uninitialized.
return histogram ? histogram->SnapshotSamples()->TotalCount() : 0;
}
base::HistogramBase::Count GetBinCount(const std::string& histogram_name,
base::HistogramBase::Sample value) {
base::HistogramBase* histogram = base::StatisticsRecorder::FindHistogram(
histogram_name);
// Return 0 if history is uninitialized.
return histogram ? histogram->SnapshotSamples()->GetCount(value) : 0;
}
} // namespace
class NTPUserDataLoggerTest : public testing::Test {
content::TestBrowserThreadBundle thread_bundle_;
};
TEST_F(NTPUserDataLoggerTest, TestLogging) {
base::StatisticsRecorder::Initialize();
// Ensure empty statistics.
EXPECT_EQ(0, GetTotalCount("NewTabPage.NumberOfMouseOvers"));
EXPECT_EQ(0, GetBinCount("NewTabPage.NumberOfMouseOvers", 0));
// Enusure non-zero statistics.
TestNTPUserDataLogger logger;
base::TimeDelta delta = base::TimeDelta::FromMilliseconds(0);
for (int i = 0; i < 20; ++i)
logger.LogEvent(NTP_MOUSEOVER, delta);
for (int i = 0; i < 8; ++i)
logger.LogEvent(NTP_TILE, delta);
for (int i = 0; i < 4; ++i)
logger.LogEvent(NTP_THUMBNAIL_TILE, delta);
for (int i = 0; i < 2; ++i)
logger.LogEvent(NTP_THUMBNAIL_ERROR, delta);
logger.LogEvent(NTP_GRAY_TILE_FALLBACK, delta);
logger.LogEvent(NTP_EXTERNAL_TILE_FALLBACK, delta);
for (int i = 0; i < 2; ++i)
logger.LogEvent(NTP_EXTERNAL_TILE, delta);
for (int i = 0; i < 2; ++i)
logger.LogEvent(NTP_GRAY_TILE, delta);
logger.LogEvent(NTP_SERVER_SIDE_SUGGESTION, delta);
logger.EmitNtpStatistics();
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfMouseOvers"));
EXPECT_EQ(0, GetBinCount("NewTabPage.NumberOfMouseOvers", 0));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfMouseOvers", 20));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfTiles"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfTiles", 8));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfThumbnailTiles"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfThumbnailTiles", 4));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfThumbnailErrors"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfThumbnailErrors", 2));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfGrayTileFallbacks"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfGrayTileFallbacks", 1));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfExternalTileFallbacks"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfExternalTileFallbacks", 1));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfExternalTiles"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfExternalTiles", 2));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfGrayTiles"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfGrayTiles", 2));
EXPECT_EQ(1, GetTotalCount("NewTabPage.SuggestionsType"));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsType", 1));
// Statistics should be reset to 0, so we should not log anything else.
logger.EmitNtpStatistics();
EXPECT_EQ(2, GetTotalCount("NewTabPage.NumberOfMouseOvers"));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfMouseOvers", 0));
EXPECT_EQ(1, GetBinCount("NewTabPage.NumberOfMouseOvers", 20));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfTiles"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfThumbnailTiles"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfThumbnailErrors"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfGrayTileFallbacks"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfExternalTileFallbacks"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfExternalTiles"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.NumberOfGrayTiles"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.SuggestionsType"));
}
TEST_F(NTPUserDataLoggerTest, TestLogMostVisitedImpression) {
base::StatisticsRecorder::Initialize();
EXPECT_EQ(0, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 1));
EXPECT_EQ(0, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 5));
TestNTPUserDataLogger logger;
logger.LogMostVisitedImpression(1, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 1));
EXPECT_EQ(0, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 5));
logger.LogMostVisitedImpression(5, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 5));
// Try without provider. Only total increases.
logger.LogMostVisitedImpression(5, base::ASCIIToUTF16(""));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 5));
logger.LogMostVisitedImpression(1, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(2, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.SuggestionsImpression.foobar", 5));
}
TEST_F(NTPUserDataLoggerTest, TestLogMostVisitedNavigation) {
base::StatisticsRecorder::Initialize();
EXPECT_EQ(0, GetTotalCount("NewTabPage.MostVisited"));
EXPECT_EQ(0, GetBinCount("NewTabPage.MostVisited.foobar", 1));
EXPECT_EQ(0, GetBinCount("NewTabPage.MostVisited.foobar", 5));
TestNTPUserDataLogger logger;
logger.LogMostVisitedNavigation(1, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(1, GetTotalCount("NewTabPage.MostVisited"));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 1));
EXPECT_EQ(0, GetBinCount("NewTabPage.MostVisited.foobar", 5));
logger.LogMostVisitedNavigation(5, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(2, GetTotalCount("NewTabPage.MostVisited"));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 5));
// Try without provider. Only total increases.
logger.LogMostVisitedNavigation(5, base::ASCIIToUTF16(""));
EXPECT_EQ(3, GetTotalCount("NewTabPage.MostVisited"));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 5));
logger.LogMostVisitedNavigation(1, base::ASCIIToUTF16("foobar"));
EXPECT_EQ(4, GetTotalCount("NewTabPage.MostVisited"));
EXPECT_EQ(2, GetBinCount("NewTabPage.MostVisited.foobar", 1));
EXPECT_EQ(1, GetBinCount("NewTabPage.MostVisited.foobar", 5));
}
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