color_description_test.cc

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// Copyright (c) the JPEG XL Project 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 "lib/extras/dec/color_description.h"

#include "lib/jxl/color_encoding_internal.h"

#include "lib/jxl/test_utils.h"

#include "lib/jxl/testing.h"

namespace jxl {

// Verify ParseDescription(Description) yields the same ColorEncoding

TEST(ColorDescriptionTest, RoundTripAll) {

  for (const auto& cdesc : test::AllEncodings()) {

    const ColorEncoding c_original = test::ColorEncodingFromDescriptor(cdesc);

    const std::string description = Description(c_original);

    printf("%s\n", description.c_str());

    JxlColorEncoding c_external = {};

    EXPECT_TRUE(ParseDescription(description, &c_external));

    ColorEncoding c_internal;

    EXPECT_TRUE(c_internal.FromExternal(c_external));

    EXPECT_TRUE(c_original.SameColorEncoding(c_internal))

        << "Where c_original=" << c_original

        << " and c_internal=" << c_internal;

TEST(ColorDescriptionTest, NanGamma) {

  const std::string description = "Gra_2_Per_gnan";

  JxlColorEncoding c;

  EXPECT_FALSE(ParseDescription(description, &c));

}  // namespace jxl