chromium/third_party/pdfium/core/fxge/dib/cstretchengine_unittest.cpp

// Copyright 2017 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/fxge/dib/cstretchengine.h"

#include <utility>

#include "core/fpdfapi/page/cpdf_dib.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fxge/dib/fx_dib.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace {

// Discovered experimentally
constexpr uint32_t kTooBigSrcLen = …;
constexpr uint32_t kTooBigDestLen = …;

uint32_t PixelWeightSum(const CStretchEngine::PixelWeight* weights) { … }

void ExecuteOneStretchTest(int32_t dest_width,
                           int32_t src_width,
                           const FXDIB_ResampleOptions& options) { … }

void ExecuteOneReversedStretchTest(int32_t dest_width,
                                   int32_t src_width,
                                   const FXDIB_ResampleOptions& options) { … }

void ExecuteStretchTests(const FXDIB_ResampleOptions& options) { … }

}  // namespace

TEST(CStretchEngine, OverflowInCtor) { … }

TEST(CStretchEngine, WeightRounding) { … }

TEST(CStretchEngine, WeightRoundingNoSmoothing) { … }

TEST(CStretchEngine, WeightRoundingBilinear) { … }

TEST(CStretchEngine, WeightRoundingNoSmoothingBilinear) { … }

TEST(CStretchEngine, ZeroLengthSrc) { … }

TEST(CStretchEngine, ZeroLengthSrcNoSmoothing) { … }

TEST(CStretchEngine, ZeroLengthSrcBilinear) { … }

TEST(CStretchEngine, ZeroLengthSrcNoSmoothingBilinear) { … }

TEST(CStretchEngine, ZeroLengthDest) { … }

TEST(CStretchEngine, TooManyWeights) { … }