Method AppendInt

cpp/src/arrow/array/array_union_test.cc:548–552

  using Base = UnionBuilderTest<SparseUnionBuilder>;

  void AppendInt(int8_t i) override {
    Base::AppendInt(i);
    ASSERT_OK(str_builder->AppendEmptyValue());
    ASSERT_OK(dbl_builder->AppendEmptyValue());
  }

  void AppendString(const std::string& str) override {
    Base::AppendString(str);