chromium/cc/tiles/mipmap_util_unittest.cc

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "cc/tiles/mipmap_util.h"

#include <limits>

#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/geometry/test/geometry_util.h"

namespace cc {
namespace {

// Ensures that a basic scale works.
TEST(MipMapUtilTest, Basic) { … }

// Ensures that a no-op scale works.
TEST(MipMapUtilTest, NoScale) { … }

// Ensures that we return the base mip level if the caller requests an upscale.
TEST(MipMapUtilTest, Upscale) { … }

// Ensures that the maximum mip level GetLevelForSize will ever return is 30.
TEST(MipMapUtilTest, MaxMipLevel) { … }

// Ensures that we handle mips of a non-square image correctly (the smaller side
// should never be smaller than 1).
TEST(MipMapUtilTest, NonSquare) { … }

// Ensures that we handle rounding images correctly.
TEST(MipMapUtilTest, Rounding) { … }

// Ensures that we round up during mip calculation.
TEST(MipMapUtilTest, RoundUp) { … }

}  // namespace
}  // namespace cc