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// Copyright 2015 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/manifest/manifest_icon_downloader.h"
#include <string>
#include <vector>
#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
class ManifestIconDownloaderTest : public testing::Test {
protected:
ManifestIconDownloaderTest() = default;
~ManifestIconDownloaderTest() override = default;
int FindBitmap(const int ideal_icon_size_in_px,
const int minimum_icon_size_in_px,
const std::vector<SkBitmap>& bitmaps) {
return ManifestIconDownloader::FindClosestBitmapIndex(
ideal_icon_size_in_px, minimum_icon_size_in_px, bitmaps);
}
SkBitmap CreateDummyBitmap(int width, int height) {
SkBitmap bitmap;
bitmap.allocN32Pixels(width, height);
bitmap.setImmutable();
return bitmap;
}
DISALLOW_COPY_AND_ASSIGN(ManifestIconDownloaderTest);
};
TEST_F(ManifestIconDownloaderTest, NoIcons) {
ASSERT_EQ(-1, FindBitmap(0, 0, std::vector<SkBitmap>()));
}
TEST_F(ManifestIconDownloaderTest, ExactIsChosen) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(10, 10));
ASSERT_EQ(0, FindBitmap(10, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, BiggerIsChosen) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(20, 20));
ASSERT_EQ(0, FindBitmap(10, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, SmallerBelowMinimumIsIgnored) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(10, 10));
ASSERT_EQ(-1, FindBitmap(20, 15, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, SmallerAboveMinimumIsChosen) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(15, 15));
ASSERT_EQ(0, FindBitmap(20, 15, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, ExactIsPreferredOverBigger) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(20, 20));
bitmaps.push_back(CreateDummyBitmap(10, 10));
ASSERT_EQ(1, FindBitmap(10, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, ExactIsPreferredOverSmaller) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(20, 20));
bitmaps.push_back(CreateDummyBitmap(10, 10));
ASSERT_EQ(0, FindBitmap(20, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, BiggerIsPreferredOverCloserSmaller) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(20, 20));
bitmaps.push_back(CreateDummyBitmap(10, 10));
ASSERT_EQ(0, FindBitmap(11, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, ClosestToExactIsChosen) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(25, 25));
bitmaps.push_back(CreateDummyBitmap(20, 20));
ASSERT_EQ(1, FindBitmap(10, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, MixedReturnsBiggestClosest) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(10, 10));
bitmaps.push_back(CreateDummyBitmap(8, 8));
bitmaps.push_back(CreateDummyBitmap(6, 6));
ASSERT_EQ(0, FindBitmap(9, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, MixedCanReturnMiddle) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(10, 10));
bitmaps.push_back(CreateDummyBitmap(8, 8));
bitmaps.push_back(CreateDummyBitmap(6, 6));
ASSERT_EQ(1, FindBitmap(7, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, SquareIsPickedOverNonSquare) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(5, 5));
bitmaps.push_back(CreateDummyBitmap(10, 15));
ASSERT_EQ(0, FindBitmap(15, 5, bitmaps));
ASSERT_EQ(0, FindBitmap(10, 5, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, MostSquareNonSquareIsPicked) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(25, 35));
bitmaps.push_back(CreateDummyBitmap(10, 11));
ASSERT_EQ(1, FindBitmap(25, 0, bitmaps));
ASSERT_EQ(1, FindBitmap(35, 0, bitmaps));
}
TEST_F(ManifestIconDownloaderTest, NonSquareBelowMinimumIsNotPicked) {
std::vector<SkBitmap> bitmaps;
bitmaps.push_back(CreateDummyBitmap(10, 15));
bitmaps.push_back(CreateDummyBitmap(15, 10));
ASSERT_EQ(-1, FindBitmap(15, 11, bitmaps));
}
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