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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ui/search/ntp_user_data_logger.h"
#include <memory>
#include <string>
#include <vector>
#include "base/metrics/histogram.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/metrics/user_action_tester.h"
#include "base/time/time.h"
#include "chrome/browser/ui/search/ntp_user_data_types.h"
#include "chrome/common/search/ntp_logging_events.h"
#include "chrome/common/url_constants.h"
#include "components/favicon_base/favicon_types.h"
#include "components/ntp_tiles/constants.h"
#include "components/search/ntp_features.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::Bucket;
using ntp_tiles::TileSource;
using ntp_tiles::TileTitleSource;
using ntp_tiles::TileVisualType;
using testing::ContainerEq;
using testing::ElementsAre;
using testing::IsEmpty;
using testing::SizeIs;
namespace {
constexpr int kUnknownTitleSource = static_cast<int>(TileTitleSource::UNKNOWN);
constexpr int kManifestTitleSource =
static_cast<int>(TileTitleSource::MANIFEST);
constexpr int kMetaTagTitleSource = static_cast<int>(TileTitleSource::META_TAG);
constexpr int kTitleTagTitleSource =
static_cast<int>(TileTitleSource::TITLE_TAG);
constexpr int kInferredTitleSource =
static_cast<int>(TileTitleSource::INFERRED);
using Sample32 = base::HistogramBase::Sample32;
using Samples = std::vector<Sample32>;
// Helper function that uses sensible defaults for irrelevant fields of
// NTPTileImpression.
ntp_tiles::NTPTileImpression MakeNTPTileImpression(int index,
TileSource source,
TileTitleSource title_source,
TileVisualType visual_type) {
return ntp_tiles::NTPTileImpression(index, source, title_source, visual_type,
favicon_base::IconType::kInvalid,
/*url_for_rappor=*/GURL());
}
// Helper function that populates a list of expected impressions, each with the
// expected |count|.
std::vector<base::Bucket> FillImpressions(int numImpressions, int count) {
std::vector<base::Bucket> impressions;
for (int i = 0; i < numImpressions; ++i) {
impressions.emplace_back(i, count);
}
return impressions;
}
class TestNTPUserDataLogger : public NTPUserDataLogger {
public:
explicit TestNTPUserDataLogger(const GURL& ntp_url)
: NTPUserDataLogger(nullptr, ntp_url, base::Time::Now()) {}
~TestNTPUserDataLogger() override = default;
bool DefaultSearchProviderIsGoogle() const override { return is_google_; }
bool CustomBackgroundIsConfigured() const override {
return is_custom_background_configured_;
}
bool is_custom_background_configured_ = false;
bool is_google_ = true;
};
using NTPUserDataLoggerTest = testing::Test;
MATCHER_P3(IsBucketBetween, lower_bound, upper_bound, count, "") {
return arg.min >= lower_bound && arg.min <= upper_bound && arg.count == count;
}
} // namespace
TEST_F(NTPUserDataLoggerTest, ShouldRecordNumberOfTiles) {
base::HistogramTester histogram_tester;
// Ensure non-zero statistics.
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
const base::TimeDelta delta = base::Milliseconds(73);
for (int i = 0; i < ntp_tiles::kMaxNumTiles; ++i) {
logger.LogMostVisitedImpression(MakeNTPTileImpression(
i, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
}
logger.LogMostVisitedLoaded(delta, /*using_most_visited=*/true,
/*is_visible=*/true);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.NumberOfTiles"),
ElementsAre(Bucket(ntp_tiles::kMaxNumTiles, 1)));
// We should not log again for the same NTP.
logger.LogMostVisitedLoaded(delta, /*using_most_visited=*/true,
/*is_visible=*/true);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.NumberOfTiles"),
ElementsAre(Bucket(ntp_tiles::kMaxNumTiles, 1)));
}
TEST_F(NTPUserDataLoggerTest, ShouldNotRecordImpressionsBeforeAllTilesLoaded) {
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
base::HistogramTester histogram_tester;
logger.LogMostVisitedImpression(
MakeNTPTileImpression(1, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_DEFAULT));
// The actual histograms are emitted only after the ALL_TILES_LOADED event,
// so at this point everything should still be empty.
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression"),
IsEmpty());
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression.client"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType"), IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType.client"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle.client"),
IsEmpty());
}
TEST_F(NTPUserDataLoggerTest, ShouldRecordImpressions) {
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
base::HistogramTester histogram_tester;
// Impressions increment the associated bins.
logger.LogMostVisitedImpression(
MakeNTPTileImpression(0, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(1, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_DEFAULT));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(2, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(3, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(MakeNTPTileImpression(
4, TileSource::TOP_SITES, TileTitleSource::TITLE_TAG,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(5, TileSource::TOP_SITES, TileTitleSource::MANIFEST,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(6, TileSource::POPULAR, TileTitleSource::TITLE_TAG,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(MakeNTPTileImpression(
7, TileSource::POPULAR_BAKED_IN, TileTitleSource::META_TAG,
TileVisualType::ICON_REAL));
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(base::Milliseconds(73),
/*using_most_visited=*/true, /*is_visible=*/true);
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1), Bucket(3, 1),
Bucket(4, 1), Bucket(5, 1), Bucket(6, 1), Bucket(7, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression.client"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1), Bucket(3, 1),
Bucket(4, 1), Bucket(5, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.SuggestionsImpression.popular_fetched"),
ElementsAre(Bucket(6, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.SuggestionsImpression.popular_baked_in"),
ElementsAre(Bucket(7, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 7),
Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 5),
Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileType.popular_fetched"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileType.popular_baked_in"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle"),
ElementsAre(Bucket(kManifestTitleSource, 1),
Bucket(kMetaTagTitleSource, 1),
Bucket(kTitleTagTitleSource, 2),
Bucket(kInferredTitleSource, 4)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle.client"),
ElementsAre(Bucket(kManifestTitleSource, 1),
Bucket(kTitleTagTitleSource, 1),
Bucket(kInferredTitleSource, 4)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitle.popular_fetched"),
ElementsAre(Bucket(kTitleTagTitleSource, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitle.popular_baked_in"),
ElementsAre(Bucket(kMetaTagTitleSource, 1)));
}
TEST_F(NTPUserDataLoggerTest, ShouldNotRecordRepeatedImpressions) {
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
base::HistogramTester histogram_tester;
// Impressions increment the associated bins.
logger.LogMostVisitedImpression(
MakeNTPTileImpression(0, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(1, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_DEFAULT));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(2, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(3, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
// Repeated impressions for the same bins are ignored.
logger.LogMostVisitedImpression(
MakeNTPTileImpression(0, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_DEFAULT));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(1, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_DEFAULT));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(2, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(
MakeNTPTileImpression(3, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(base::Milliseconds(73),
/*using_most_visited=*/true, /*is_visible=*/true);
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1), Bucket(3, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression.client"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1), Bucket(3, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 3),
Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 3),
Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle"),
ElementsAre(Bucket(kInferredTitleSource, 4)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitle.client"),
ElementsAre(Bucket(kInferredTitleSource, 4)));
}
TEST_F(NTPUserDataLoggerTest, ShouldNotRecordImpressionsForBinsBeyondMax) {
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
base::HistogramTester histogram_tester;
// Impressions increment the associated bins.
for (int bin = 0; bin < ntp_tiles::kMaxNumTiles; bin++) {
logger.LogMostVisitedImpression(MakeNTPTileImpression(
bin, TileSource::TOP_SITES, TileTitleSource::INFERRED,
TileVisualType::ICON_REAL));
}
// Impressions are silently ignored for tiles >= ntp_tiles::kMaxNumTiles.
logger.LogMostVisitedImpression(MakeNTPTileImpression(
ntp_tiles::kMaxNumTiles, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
logger.LogMostVisitedImpression(MakeNTPTileImpression(
ntp_tiles::kMaxNumTiles + 1, TileSource::TOP_SITES,
TileTitleSource::UNKNOWN, TileVisualType::ICON_DEFAULT));
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(base::Milliseconds(73),
/*using_most_visited=*/true, /*is_visible=*/true);
std::vector<base::Bucket> expectedImpressions =
FillImpressions(ntp_tiles::kMaxNumTiles, 1);
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression"),
ContainerEq(expectedImpressions));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.SuggestionsImpression.client"),
ContainerEq(expectedImpressions));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL,
ntp_tiles::kMaxNumTiles)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileType.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL,
ntp_tiles::kMaxNumTiles)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitle"),
ElementsAre(Bucket(kInferredTitleSource, ntp_tiles::kMaxNumTiles)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitle.client"),
ElementsAre(Bucket(kInferredTitleSource, ntp_tiles::kMaxNumTiles)));
}
TEST_F(NTPUserDataLoggerTest, ShouldRecordNavigations) {
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
{
base::HistogramTester histogram_tester;
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
0, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited"),
ElementsAre(Bucket(0, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited.client"),
ElementsAre(Bucket(0, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
}
{
base::HistogramTester histogram_tester;
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
1, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_DEFAULT));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited"),
ElementsAre(Bucket(1, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited.client"),
ElementsAre(Bucket(1, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
}
{
base::HistogramTester histogram_tester;
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
2, TileSource::TOP_SITES, TileTitleSource::MANIFEST,
TileVisualType::ICON_DEFAULT));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited"),
ElementsAre(Bucket(2, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited.client"),
ElementsAre(Bucket(2, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_DEFAULT, 1)));
}
{
base::HistogramTester histogram_tester;
logger.LogMostVisitedNavigation(
MakeNTPTileImpression(3, TileSource::POPULAR, TileTitleSource::META_TAG,
TileVisualType::ICON_REAL));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited"),
ElementsAre(Bucket(3, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited.client"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.MostVisited.popular_fetched"),
ElementsAre(Bucket(3, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked.client"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.TileTypeClicked.popular_fetched"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitleClicked"),
ElementsAre(Bucket(kMetaTagTitleSource, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitleClicked.client"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.TileTitleClicked.popular_fetched"),
ElementsAre(Bucket(kMetaTagTitleSource, 1)));
}
{
base::HistogramTester histogram_tester;
// Navigations always increase.
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
0, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
1, TileSource::TOP_SITES, TileTitleSource::TITLE_TAG,
TileVisualType::ICON_REAL));
logger.LogMostVisitedNavigation(MakeNTPTileImpression(
2, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
logger.LogMostVisitedNavigation(
MakeNTPTileImpression(3, TileSource::POPULAR, TileTitleSource::MANIFEST,
TileVisualType::ICON_REAL));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.MostVisited"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1), Bucket(3, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.MostVisited.client"),
ElementsAre(Bucket(0, 1), Bucket(1, 1), Bucket(2, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.MostVisited.popular_fetched"),
ElementsAre(Bucket(3, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 4)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTypeClicked.client"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 3)));
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.TileTypeClicked.popular_fetched"),
ElementsAre(Bucket(ntp_tiles::TileVisualType::ICON_REAL, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.TileTitleClicked"),
ElementsAre(Bucket(kUnknownTitleSource, 2),
Bucket(kManifestTitleSource, 1),
Bucket(kTitleTagTitleSource, 1)));
EXPECT_THAT(
histogram_tester.GetAllSamples("NewTabPage.TileTitleClicked.client"),
ElementsAre(Bucket(kUnknownTitleSource, 2),
Bucket(kTitleTagTitleSource, 1)));
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.TileTitleClicked.popular_fetched"),
ElementsAre(Bucket(kManifestTitleSource, 1)));
}
}
TEST_F(NTPUserDataLoggerTest, ShouldRecordMostVisitedLoadTime) {
base::HistogramTester histogram_tester;
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
base::TimeDelta delta_tiles_loaded = base::Milliseconds(100);
// Log a TOP_SITES impression (for the .MostVisited vs .MostLikely split in
// the time histograms).
logger.LogMostVisitedImpression(
MakeNTPTileImpression(0, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL));
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(delta_tiles_loaded, /*using_most_visited=*/true,
/*is_visible=*/true);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.LoadTime"), SizeIs(1));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.LoadTime.MostVisited"),
SizeIs(1));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.LoadTime.MostLikely"),
IsEmpty());
histogram_tester.ExpectTimeBucketCount("NewTabPage.LoadTime",
delta_tiles_loaded, 1);
histogram_tester.ExpectTimeBucketCount("NewTabPage.LoadTime.MostVisited",
delta_tiles_loaded, 1);
// We should not log again for the same NTP.
logger.LogMostVisitedLoaded(delta_tiles_loaded, /*using_most_visited=*/true,
/*is_visible=*/true);
histogram_tester.ExpectTimeBucketCount("NewTabPage.LoadTime",
delta_tiles_loaded, 1);
}
TEST_F(NTPUserDataLoggerTest, ShouldRecordImpressionsAge) {
base::HistogramTester histogram_tester;
// Ensure non-zero statistics.
TestNTPUserDataLogger logger(GURL("chrome://newtab/"));
constexpr base::TimeDelta delta = base::Milliseconds(0);
logger.LogMostVisitedImpression(ntp_tiles::NTPTileImpression(
0, TileSource::TOP_SITES, TileTitleSource::UNKNOWN,
TileVisualType::ICON_REAL, favicon_base::IconType::kInvalid, GURL()));
logger.LogMostVisitedLoaded(delta, /*using_most_visited=*/true,
/*is_visible=*/true);
}
TEST_F(NTPUserDataLoggerTest,
ShouldNotRecordShortcutsAreCustomizedFromNTPOther) {
base::HistogramTester histogram_tester;
TestNTPUserDataLogger logger(GURL("https://www.notgoogle.com/newtab"));
logger.is_google_ = false;
base::TimeDelta delta_tiles_loaded = base::Milliseconds(100);
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(delta_tiles_loaded, /*using_most_visited=*/false,
/*is_visible=*/true);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.Customized"),
IsEmpty());
}
TEST_F(NTPUserDataLoggerTest,
ShouldNotRecordCustomizedShortcutSettingsFromNTPOther) {
base::HistogramTester histogram_tester;
TestNTPUserDataLogger logger(GURL("https://www.notgoogle.com/newtab"));
logger.is_google_ = false;
base::TimeDelta delta_tiles_loaded = base::Milliseconds(100);
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(delta_tiles_loaded, /*using_most_visited=*/true,
/*is_visible=*/true);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.CustomizedShortcuts"),
IsEmpty());
}
TEST_F(NTPUserDataLoggerTest, ShouldNotRecordCustomizationActionFromNTPOther) {
base::HistogramTester histogram_tester;
TestNTPUserDataLogger logger(GURL("https://www.notgoogle.com/newtab"));
logger.is_google_ = false;
base::TimeDelta delta_tiles_loaded = base::Milliseconds(100);
// This should trigger emitting histograms.
logger.LogMostVisitedLoaded(delta_tiles_loaded, /*using_most_visited=*/true,
/*is_visible=*/true);
// Attempt to log an event that is only supported when the default search
// provider is Google.
logger.LogEvent(NTP_CUSTOMIZE_CHROME_BACKGROUND_SELECT_COLLECTION,
delta_tiles_loaded);
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.LoadTime"), SizeIs(1));
EXPECT_THAT(histogram_tester.GetAllSamples("NewTabPage.LoadTime.WebUINTP"),
IsEmpty());
EXPECT_THAT(histogram_tester.GetAllSamples(
"NewTabPage.CustomizeChromeBackgroundAction"),
IsEmpty());
}
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