Method AssertDiffAndFormat

cpp/src/arrow/array/diff_test.cc:96–107

validate diff and assert that it formats as expected, both directly and through Array::Equals

  // validate diff and assert that it formats as expected, both directly
  // and through Array::Equals
  void AssertDiffAndFormat(const std::string& formatted_expected) {
    std::stringstream formatted;

    DoDiffAndFormat(&formatted);
    ASSERT_EQ(formatted.str(), formatted_expected) << "formatted diff incorrectly";
    formatted.str("");

    ASSERT_EQ(edits_->length() == 1,
              base_->Equals(*target_, EqualOptions().diff_sink(&formatted)));
    ASSERT_EQ(formatted.str(), formatted_expected)
        << "Array::Equals formatted diff incorrectly";
  }

  void AssertInsertIs(const std::string& insert_json) {
    AssertArraysEqual(*ArrayFromJSON(boolean(), insert_json), *insert_, /*verbose=*/true);