Method TestBasics

cpp/src/arrow/io/memory_test.cc:534–543

  }

  void TestBasics() {
    auto src = Buffer::FromString("1234567890abcdefghi");
    ASSERT_OK_AND_ASSIGN(auto expected, this->transform()(src));

    auto stream = std::make_shared<TransformInputStream>(
        std::make_shared<BufferReader>(src), this->transform());
    std::shared_ptr<Buffer> actual;
    AccumulateReads(stream, 200, &actual);
    AssertBufferEqual(*actual, *expected);
  }

  void TestClose() {
    auto src = Buffer::FromString("1234567890abcdefghi");