c_glib/test/test-dictionary-encode-options.rb

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class TestDictionaryEncodeOptions < Test::Unit::TestCase
  include Helper::Buildable

  def setup
    @options = Arrow::DictionaryEncodeOptions.new
  end

  def test_null_encoding_behavior_property
    assert_equal(Arrow::DictionaryEncodeNullEncodingBehavior::MASK, @options.null_encoding_behavior)
    @options.null_encoding_behavior = :encode
    assert_equal(Arrow::DictionaryEncodeNullEncodingBehavior::ENCODE, 
                 @options.null_encoding_behavior)
  end

  def test_dictionary_encode_function_with_encode
    args = [
      Arrow::ArrayDatum.new(build_string_array(["a", "b", nil, "a", "b"])),
    ]
    @options.null_encoding_behavior = :encode
    dictionary_encode_function = Arrow::Function.find("dictionary_encode")
    result = dictionary_encode_function.execute(args, @options).value
    assert_equal(Arrow::DictionaryDataType.new(Arrow::Int32DataType.new,
                                               Arrow::StringDataType.new,
                                               false),
                 result.value_data_type)
    assert_equal(build_int32_array([0, 1, 2, 0, 1]), result.indices)
  end
end