Move thumbnail to history component

chrome/common/thumbnail_score_unittest.cc

-// Copyright (c) 2011 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/common/thumbnail_score.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-// Tests that the different types of thumbnails are compared properly.
-TEST(ThumbnailScoreTest, ShouldReplaceThumbnailWithType) {
-  base::Time now = base::Time::Now();
-
-  ThumbnailScore nothing_good(0.5, false, false, now);
-  ThumbnailScore not_at_top(0.5, false, true, now);
-  ThumbnailScore bad_clipping(0.5, true, false, now);
-  ThumbnailScore life_is_awesome(0.5, true, true, now);
-
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(nothing_good, not_at_top));
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(nothing_good, bad_clipping));
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(nothing_good, life_is_awesome));
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(not_at_top, bad_clipping));
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(not_at_top, life_is_awesome));
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(bad_clipping, life_is_awesome));
-}
-
-// Tests that we'll replace old thumbnails will crappier but newer ones.
-TEST(ThumbnailScoreTest, ShouldReplaceThumbnailWithTime) {
-  // Use a really long time for the difference so we aren't sensitive to the
-  // degrading schedule.
-  base::Time now = base::Time::Now();
-  base::Time last_year = now - base::TimeDelta::FromDays(365);
-
-  ThumbnailScore oldie_but_goodie(0.1, true, true, last_year);
-  ThumbnailScore newie_but_crappie(0.9, true, true, now);
-
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(oldie_but_goodie, newie_but_crappie));
-}
-
-// Having many redirects should age the thumbnail.
-TEST(ThumbnailScoreTest, RedirectCount) {
-  base::Time now = base::Time::Now();
-
-  ThumbnailScore no_redirects(0.5, true, true, now);
-  no_redirects.redirect_hops_from_dest = 0;
-  ThumbnailScore some_redirects(0.5, true, true, now);
-  some_redirects.redirect_hops_from_dest = 1;
-
-  EXPECT_TRUE(ShouldReplaceThumbnailWith(some_redirects, no_redirects));
-
-  // This one has a lot of redirects but a better score. It should still be
-  // rejected.
-  ThumbnailScore lotsa_redirects(0.4, true, true, now);
-  lotsa_redirects.redirect_hops_from_dest = 4;
-  EXPECT_FALSE(ShouldReplaceThumbnailWith(no_redirects, lotsa_redirects));
-}
-
-TEST(ThumbnailScoreTest, ShouldConsiderUpdating) {
-  ThumbnailScore score;
-  // By default, the score is low, thus we should generate a new thumbnail.
-  EXPECT_TRUE(score.ShouldConsiderUpdating());
-
-  // Make it very interesting, but this is not enough.
-  score.boring_score = 0.0;
-  EXPECT_TRUE(score.ShouldConsiderUpdating());
-
-  // good_clipping is important, but sill not enough.
-  score.good_clipping = true;
-  EXPECT_TRUE(score.ShouldConsiderUpdating());
-
-  // at_top is important, but still not enough.
-  score.at_top = true;
-  EXPECT_TRUE(score.ShouldConsiderUpdating());
-
-  // load_completed is important. Finally, the thumbnail is new and
-  // interesting enough.
-  score.load_completed = true;
-  EXPECT_FALSE(score.ShouldConsiderUpdating());
-
-  // Make it very boring, but it won't change the result. The boring score
-  // isn't used for judging whether we should update or not. See comments
-  // at boring_score in thumbnail_score.h for why.
-  score.boring_score = 1.0;
-  EXPECT_FALSE(score.ShouldConsiderUpdating());
-
-  // Make it old. Then, it's no longer new enough.
-  score.time_at_snapshot -=
-      base::TimeDelta::FromDays(ThumbnailScore::kUpdateThumbnailTimeDays);
-  EXPECT_TRUE(score.ShouldConsiderUpdating());
-}