c_glib/test/test-dictionary-array.rb

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#
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class TestDictionaryArray < Test::Unit::TestCase
  include Helper::Buildable

  def setup
    @index_data_type = Arrow::Int32DataType.new
    @dictionary = build_string_array(["C", "C++", "Ruby"])
    @ordered = false
    @data_type = Arrow::DictionaryDataType.new(@index_data_type,
                                               @dictionary.value_data_type,
                                               @ordered)
  end

  sub_test_case(".new") do
    def test_new
      indices = build_int32_array([0, 2, 2, 1, 0])
      dictionary_array = Arrow::DictionaryArray.new(@data_type,
                                                    indices,
                                                    @dictionary)
      assert_equal(<<-STRING.chomp, dictionary_array.to_s)

-- dictionary:
  [
    "C",
    "C++",
    "Ruby"
  ]
-- indices:
  [
    0,
    2,
    2,
    1,
    0
  ]
      STRING
    end
  end

  sub_test_case("instance methods") do
    def setup
      super
      @indices = build_int32_array([0, 2, 2, 1, 0])
      @dictionary_array = Arrow::DictionaryArray.new(@data_type,
                                                     @indices,
                                                     @dictionary)
    end

    def test_indices
      assert_equal(@indices, @dictionary_array.indices)
    end

    def test_dictionary
      assert_equal(@dictionary, @dictionary_array.dictionary)
    end

    def test_dictionary_data_type
      assert_equal(@data_type,
                   @dictionary_array.dictionary_data_type)
    end
  end
end