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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/thumbnails/thumbnail_service_impl.h"
#include <stddef.h>
#include "base/bind.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/history/history_utils.h"
#include "chrome/browser/history/top_sites_factory.h"
#include "chrome/test/base/testing_profile.h"
#include "components/history/core/browser/top_sites_impl.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "testing/gtest/include/gtest/gtest.h"
class ThumbnailServiceTest : public testing::Test {
content::TestBrowserThreadBundle thread_bundle_;
};
namespace {
// A mock version of TopSitesImpl, used for testing
// ShouldAcquirePageThumbnail().
class MockTopSites : public history::TopSitesImpl {
public:
explicit MockTopSites(Profile* profile)
: history::TopSitesImpl(profile->GetPrefs(),
nullptr,
history::PrepopulatedPageList(),
base::Bind(CanAddURLToHistory)),
capacity_(1) {}
// history::TopSitesImpl overrides.
bool IsNonForcedFull() override { return known_url_map_.size() >= capacity_; }
bool IsForcedFull() override { return false; }
bool IsKnownURL(const GURL& url) override {
return known_url_map_.find(url.spec()) != known_url_map_.end();
}
bool GetPageThumbnailScore(const GURL& url, ThumbnailScore* score) override {
std::map<std::string, ThumbnailScore>::const_iterator iter =
known_url_map_.find(url.spec());
if (iter == known_url_map_.end()) {
return false;
} else {
*score = iter->second;
return true;
}
}
// Adds a known URL with the associated thumbnail score.
void AddKnownURL(const GURL& url, const ThumbnailScore& score) {
known_url_map_[url.spec()] = score;
}
private:
~MockTopSites() override {}
const size_t capacity_;
std::map<std::string, ThumbnailScore> known_url_map_;
DISALLOW_COPY_AND_ASSIGN(MockTopSites);
};
// Testing factory that build a |MockTopSites| instance.
scoped_refptr<RefcountedKeyedService> BuildMockTopSites(
content::BrowserContext* profile) {
return scoped_refptr<RefcountedKeyedService>(
new MockTopSites(static_cast<Profile*>(profile)));
}
// A mock version of TestingProfile holds MockTopSites.
class MockProfile : public TestingProfile {
public:
MockProfile() {
TopSitesFactory::GetInstance()->SetTestingFactory(this, BuildMockTopSites);
}
void AddKnownURL(const GURL& url, const ThumbnailScore& score) {
scoped_refptr<history::TopSites> top_sites =
TopSitesFactory::GetForProfile(this);
static_cast<MockTopSites*>(top_sites.get())->AddKnownURL(url, score);
}
private:
DISALLOW_COPY_AND_ASSIGN(MockProfile);
};
} // namespace
TEST_F(ThumbnailServiceTest, ShouldUpdateThumbnail) {
const GURL kGoodURL("http://www.google.com/");
const GURL kBadURL("chrome://newtab");
// Set up the mock profile along with mock top sites.
base::ScopedTempDir temp_dir;
ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
MockProfile profile;
scoped_refptr<thumbnails::ThumbnailService> thumbnail_service(
new thumbnails::ThumbnailServiceImpl(&profile));
// Should be false because it's a bad URL.
EXPECT_FALSE(thumbnail_service->ShouldAcquirePageThumbnail(kBadURL));
// Should be true, as it's a good URL.
EXPECT_TRUE(thumbnail_service->ShouldAcquirePageThumbnail(kGoodURL));
// Not checking incognito mode since the service wouldn't have been created
// in that case anyway.
// Add a known URL. This makes the top sites data full.
ThumbnailScore bad_score;
bad_score.time_at_snapshot = base::Time::UnixEpoch(); // Ancient time stamp.
profile.AddKnownURL(kGoodURL, bad_score);
scoped_refptr<history::TopSites> top_sites =
TopSitesFactory::GetForProfile(&profile);
ASSERT_TRUE(top_sites->IsNonForcedFull());
// Should be false, as the top sites data is full, and the new URL is
// not known.
const GURL kAnotherGoodURL("http://www.youtube.com/");
EXPECT_FALSE(thumbnail_service->ShouldAcquirePageThumbnail(kAnotherGoodURL));
// Should be true, as the existing thumbnail is bad (i.e. need a better one).
EXPECT_TRUE(thumbnail_service->ShouldAcquirePageThumbnail(kGoodURL));
// Replace the thumbnail score with a really good one.
ThumbnailScore good_score;
good_score.time_at_snapshot = base::Time::Now(); // Very new.
good_score.at_top = true;
good_score.good_clipping = true;
good_score.boring_score = 0.0;
good_score.load_completed = true;
profile.AddKnownURL(kGoodURL, good_score);
// Should be false, as the existing thumbnail is good enough (i.e. don't
// need to replace the existing thumbnail which is new and good).
EXPECT_FALSE(thumbnail_service->ShouldAcquirePageThumbnail(kGoodURL));
}
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