Method TestCast

cpp/src/arrow/scalar_test.cc:2007–2013

  }

  void TestCast() {
    // Cast() function doesn't support casting union to string, use Scalar::CastTo()
    // instead.
    ASSERT_OK_AND_ASSIGN(auto casted, union_alpha_->CastTo(utf8()));
    ASSERT_TRUE(casted->Equals(StringScalar(R"(union{string: string = alpha})")))
        << casted->ToString();
  }

 protected:
  std::shared_ptr<DataType> type_;