ui/gfx/image/image_skia_operations_unittest.cc

// 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 "ui/gfx/image/image_skia_operations.h"

#include <vector>

#include "build/blink_buildflags.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/image/image_skia.h"
#include "ui/gfx/image/image_skia_rep.h"

#if BUILDFLAG(IS_IOS)
#include "ui/base/resource/resource_scale_factor.h"
#endif  // BUILDFLAG(IS_IOS)

namespace gfx {
namespace {

TEST(ImageSkiaOperationsTest, ResizeFailure) {
#if BUILDFLAG(IS_IOS)
  // Ensure we have supported scale factors. iOS may not support k100Percent
  // like other platforms, so we force support for 100 and 200 percent here.
  ui::test::ScopedSetSupportedResourceScaleFactors scoped_supported(
      {ui::k100Percent, ui::k200Percent});
#endif  // BUILDFLAG(IS_IOS)

  ImageSkia image(ImageSkiaRep(gfx::Size(10, 10), 1.f));

  // Try to resize to empty. This isn't a valid resize and fails gracefully.
  ImageSkia resized = ImageSkiaOperations::CreateResizedImage(
      image, skia::ImageOperations::RESIZE_BEST, gfx::Size());
  EXPECT_TRUE(resized.GetRepresentation(1.0f).is_null());
}

}  // namespace
}  // namespace gfx