Function testCase

samples/write-test.cpp:113–151

// *****************************************************************************
void testCase(const std::string& file1, const std::string& file2, const std::string& thumb, const std::string& key,
              const std::string& value) {
  ExifKey ek(key);

  // Open first image
  auto image1 = ImageFactory::open(file1);

  // Load existing metadata
  std::cerr << "---> Reading file " << file1 << "\n";
  image1->readMetadata();

  Exiv2::ExifData& ed1 = image1->exifData();
  std::cerr << "---> Modifying Exif data\n";
  auto pos = ed1.findKey(ek);
  if (pos == ed1.end()) {
    throw Error(ErrorCode::kerErrorMessage, "Metadatum with key = " + ek.key() + " not found");
  }
  pos->setValue(value);

  // Open second image
  auto image2 = ImageFactory::open(file2);

  image2->setExifData(image1->exifData());

  std::cerr << "---> Writing Exif data to file " << file2 << "\n";
  image2->writeMetadata();

  std::cerr << "---> Reading file " << file2 << "\n";
  image2->readMetadata();

  Exiv2::ExifData& ed2 = image2->exifData();
  exifPrint(ed2);

  std::cerr << "---> Writing Exif thumbnail to file " << thumb << ".*\n";
  ExifThumbC et2(ed2);
  auto s = et2.writeFile(thumb);
  if (s == 0)
    std::cerr << "---> Failed to write to file " << thumb << ".*\n";
}

// *****************************************************************************