Move SelectFaviconFrames from favicon/ to history/

chrome/browser/favicon/select_favicon_frames_unittest.cc

-// 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/favicon/select_favicon_frames.h"
-
-#include "ui/base/layout.h"
-#include "ui/gfx/image/image_skia.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "third_party/skia/include/core/SkColor.h"
-
-using std::vector;
-
-namespace {
-
-vector<ui::ScaleFactor> Scale1x() {
-  return vector<ui::ScaleFactor>(1, ui::SCALE_FACTOR_100P);
-}
-
-vector<ui::ScaleFactor> Scale1x2x() {
-  vector<ui::ScaleFactor> scales;
-  scales.push_back(ui::SCALE_FACTOR_100P);
-  scales.push_back(ui::SCALE_FACTOR_200P);
-  return scales;
-}
-
-SkBitmap MakeBitmap(SkColor color, int w, int h) {
-  SkBitmap bitmap;
-  bitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
-  bitmap.allocPixels();
-  bitmap.eraseColor(color);
-  return bitmap;
-}
-
-SkColor GetColor(const gfx::ImageSkia& image, ui::ScaleFactor factor,
-                 int x = -1, int y = -1) {
-  const SkBitmap& bitmap = image.GetRepresentation(factor).sk_bitmap();
-  if (x == -1)
-    x = bitmap.width() / 2;
-  if (y == -1)
-    y = bitmap.width() / 2;
-  bitmap.lockPixels();
-  SkColor color = bitmap.getColor(x, y);
-  bitmap.unlockPixels();
-  return color;
-}
-
-SkColor GetColor1x(const gfx::ImageSkia& image) {
-  return GetColor(image, ui::SCALE_FACTOR_100P);
-}
-
-SkColor GetColor2x(const gfx::ImageSkia& image) {
-  return GetColor(image, ui::SCALE_FACTOR_200P);
-}
-
-TEST(SelectFaviconFramesTest, ZeroSizePicksLargest) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorRED, 16, 16));
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 48, 48));
-  bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 32, 32));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x(), 0, NULL);
-  EXPECT_EQ(1u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  EXPECT_EQ(48, image.width());
-  EXPECT_EQ(48, image.height());
-
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-}
-
-TEST(SelectFaviconFramesTest, _16From16) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorRED, 15, 15));
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-  bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 17, 17));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x(), 16, NULL);
-  EXPECT_EQ(1u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  EXPECT_EQ(16, image.width());
-  EXPECT_EQ(16, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-}
-
-TEST(SelectFaviconFramesTest, _16From17) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorRED, 15, 15));
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 17, 17));
-
-  // Should resample from the bigger candidate.
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x(), 16, NULL);
-  EXPECT_EQ(1u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  EXPECT_EQ(16, image.width());
-  EXPECT_EQ(16, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-}
-
-TEST(SelectFaviconFramesTest, _16From15) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorRED, 14, 14));
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 15, 15));
-
-  // If nothing else is available, should resample form the next smaller
-  // candidate.
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x(), 16, NULL);
-  EXPECT_EQ(1u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  EXPECT_EQ(16, image.width());
-  EXPECT_EQ(16, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-}
-
-TEST(SelectFaviconFramesTest, _16From16_Scale2x_32_From_16) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x2x(), 16, NULL);
-  EXPECT_EQ(2u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_200P));
-  EXPECT_EQ(16, image.width());
-  EXPECT_EQ(16, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-  EXPECT_EQ(SK_ColorGREEN, GetColor2x(image));
-}
-
-TEST(SelectFaviconFramesTest, _16From16_Scale2x_32_From_32) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-  bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 32, 32));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x2x(), 16, NULL);
-  EXPECT_EQ(2u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_200P));
-  EXPECT_EQ(16, image.width());
-  EXPECT_EQ(16, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-  EXPECT_EQ(SK_ColorBLUE, GetColor2x(image));
-}
-
-TEST(SelectFaviconFramesTest, _24_48) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorRED, 25, 25));
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-  bitmaps.push_back(MakeBitmap(SK_ColorBLUE, 32, 32));
-  bitmaps.push_back(MakeBitmap(SK_ColorYELLOW, 49, 49));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x2x(), 24, NULL);
-  EXPECT_EQ(2u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_200P));
-  EXPECT_EQ(24, image.width());
-  EXPECT_EQ(24, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 0, 0)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 3, 4)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 4, 4)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 19, 19)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 20, 19)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 23, 23)));
-
-  EXPECT_EQ(SK_ColorBLUE, GetColor2x(image));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 0, 0)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 7, 8)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 8, 8)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 39, 39)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 40, 39)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 47, 47)));
-}
-
-TEST(SelectFaviconFramesTest, _48_From_16) {
-  vector<SkBitmap> bitmaps;
-  bitmaps.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-
-  gfx::ImageSkia image = SelectFaviconFrames(bitmaps, Scale1x2x(), 24, NULL);
-  EXPECT_EQ(2u, image.image_reps().size());
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_100P));
-  ASSERT_TRUE(image.HasRepresentation(ui::SCALE_FACTOR_200P));
-  EXPECT_EQ(24, image.width());
-  EXPECT_EQ(24, image.height());
-  EXPECT_EQ(SK_ColorGREEN, GetColor1x(image));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 0, 0)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 3, 4)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 4, 4)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 19, 19)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 20, 19)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_100P, 23, 23)));
-
-  EXPECT_EQ(SK_ColorGREEN, GetColor2x(image));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 0, 0)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 7, 8)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 8, 8)));
-  EXPECT_EQ(255u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 39, 39)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 40, 39)));
-  EXPECT_EQ(0u, SkColorGetA(GetColor(image, ui::SCALE_FACTOR_200P, 47, 47)));
-}
-
-TEST(SelectFaviconFramesTest, ExactMatchBetterThanHugeBitmap) {
-  float score1;
-  vector<SkBitmap> bitmaps1;
-  bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 255, 255));
-  SelectFaviconFrames(bitmaps1, Scale1x2x(), 16, &score1);
-
-  float score2;
-  vector<SkBitmap> bitmaps2;
-  bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 16, 16));
-  bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 32, 32));
-  SelectFaviconFrames(bitmaps2, Scale1x2x(), 16, &score2);
-
-  EXPECT_GT(score2, score1);
-}
-
-TEST(SelectFaviconFramesTest, DownsamplingBetterThanUpsampling) {
-  float score1;
-  vector<SkBitmap> bitmaps1;
-  bitmaps1.push_back(MakeBitmap(SK_ColorGREEN, 8, 8));
-  SelectFaviconFrames(bitmaps1, Scale1x(), 16, &score1);
-
-  float score2;
-  vector<SkBitmap> bitmaps2;
-  bitmaps2.push_back(MakeBitmap(SK_ColorGREEN, 24, 24));
-  SelectFaviconFrames(bitmaps2, Scale1x(), 16, &score2);
-
-  EXPECT_GT(score2, score1);
-}
-
-}