Method TempFile

cpp/src/arrow/io/file_test.cc:617–619

  void TearDown() override { MemoryMapFixture::TearDown(); }

  std::string TempFile(std::string_view path) {
    return temp_dir_->path().Join(std::string(path)).ValueOrDie().ToString();
  }

 protected:
  std::unique_ptr<TemporaryDir> temp_dir_;