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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "pdf/test/test_helpers.h"
#include "base/base_paths.h"
#include "base/files/file_path.h"
#include "base/path_service.h"
#include "cc/test/pixel_comparator.h"
#include "cc/test/pixel_test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkImage.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "ui/gfx/geometry/size.h"
namespace chrome_pdf {
base::FilePath GetTestDataFilePath(const base::FilePath& path) {
base::FilePath source_root;
if (!base::PathService::Get(base::DIR_SRC_TEST_DATA_ROOT, &source_root)) {
return {};
}
return source_root.Append(FILE_PATH_LITERAL("pdf"))
.Append(FILE_PATH_LITERAL("test"))
.Append(FILE_PATH_LITERAL("data"))
.Append(path);
}
testing::AssertionResult MatchesPngFile(
const SkImage* actual_image,
const base::FilePath& expected_png_file) {
SkBitmap actual_bitmap;
if (!actual_image->asLegacyBitmap(&actual_bitmap))
return testing::AssertionFailure() << "Reference: " << expected_png_file;
if (!cc::MatchesPNGFile(actual_bitmap, GetTestDataFilePath(expected_png_file),
cc::ExactPixelComparator())) {
return testing::AssertionFailure() << "Reference: " << expected_png_file;
}
return testing::AssertionSuccess();
}
sk_sp<SkSurface> CreateSkiaSurfaceForTesting(const gfx::Size& size,
SkColor color) {
auto surface = SkSurfaces::Raster(
SkImageInfo::MakeN32Premul(size.width(), size.height()));
surface->getCanvas()->clear(color);
return surface;
}
sk_sp<SkImage> CreateSkiaImageForTesting(const gfx::Size& size, SkColor color) {
return CreateSkiaSurfaceForTesting(size, color)->makeImageSnapshot();
}
} // namespace chrome_pdf
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