Method AppendDouble

cpp/src/arrow/array/array_union_test.cc:400–404

  }

  virtual void AppendDouble(double dbl) {
    expected_types_vector.push_back(DBL);
    ASSERT_OK(union_builder->Append(DBL));
    ASSERT_OK(dbl_builder->Append(dbl));
  }

  void AppendBasics() {
    AppendInt(33);