Function NormalizerKeyValueMetadata

cpp/src/arrow/filesystem/azurefs_test.cc:2919–2949

namespace {
std::shared_ptr<const KeyValueMetadata> NormalizerKeyValueMetadata(
    std::shared_ptr<const KeyValueMetadata> metadata) {
  auto normalized = std::make_shared<KeyValueMetadata>();
  for (int64_t i = 0; i < metadata->size(); ++i) {
    auto key = metadata->key(i);
    auto value = metadata->value(i);
    if (key == "Content-Hash") {
      std::vector<uint8_t> output;
      output.resize(value.size() / 2);
      if (ParseHexValues(value, output.data()).ok()) {
        // Valid value
        value = std::string(value.size(), 'F');
      }
    } else if (key == "Last-Modified" || key == "Created-On" ||
               key == "Access-Tier-Changed-On") {
      auto parser = TimestampParser::MakeISO8601();
      int64_t output;
      if ((*parser)(value.data(), value.size(), TimeUnit::NANO, &output)) {
        // Valid value
        value = "2023-10-31T08:15:20Z";
      }
    } else if (key == "ETag") {
      if (value.starts_with("\"") && value.ends_with("\"")) {
        // Valid value
        value = "\"ETagValue\"";
      }
    }
    normalized->Append(key, value);
  }
  return normalized;
}
};  // namespace

TEST_F(TestAzuriteFileSystem, OpenInputStreamReadMetadata) {