c_glib/test/test-chunked-array.rb

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

  def test_equal
    chunks1 = [
      build_boolean_array([true, false]),
      build_boolean_array([true]),
    ]
    chunks2 = [
      build_boolean_array([true]),
      build_boolean_array([false, true]),
    ]
    assert_equal(Arrow::ChunkedArray.new(chunks1),
                 Arrow::ChunkedArray.new(chunks2))
  end

  def test_value_data_type
    chunks = [
      build_boolean_array([true, false]),
      build_boolean_array([true]),
    ]
    assert_equal(Arrow::BooleanDataType.new,
                 Arrow::ChunkedArray.new(chunks).value_data_type)
  end

  def test_value_type
    chunks = [
      build_boolean_array([true, false]),
      build_boolean_array([true]),
    ]
    assert_equal(Arrow::Type::BOOLEAN,
                 Arrow::ChunkedArray.new(chunks).value_type)
  end

  def test_length
    chunks = [
      build_boolean_array([true, false]),
      build_boolean_array([true]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks)
    assert_equal(3, chunked_array.length)
  end

  def test_n_nulls
    chunks = [
      build_boolean_array([true, nil, false]),
      build_boolean_array([nil, nil, true]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks)
    assert_equal(3, chunked_array.n_nulls)
  end


  def test_n_chunks
    chunks = [
      build_boolean_array([true]),
      build_boolean_array([false]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks)
    assert_equal(2, chunked_array.n_chunks)
  end

  def test_chunk
    chunks = [
      build_boolean_array([true, false]),
      build_boolean_array([false]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks)
    assert_equal(2, chunked_array.get_chunk(0).length)
  end

  def test_chunks
    chunks = [
      build_boolean_array([true, false]),
      build_boolean_array([false]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks)
    assert_equal([2, 1],
                 chunked_array.chunks.collect(&:length))
  end

  def test_slice
    chunks1 = [
      build_boolean_array([true, false, true]),
      build_boolean_array([false, true]),
    ]
    chunks2 = [
      build_boolean_array([false, true]),
      build_boolean_array([false]),
    ]
    chunked_array = Arrow::ChunkedArray.new(chunks1)
    sub_chunked_array = chunked_array.slice(1, 3)
    assert_equal(chunks2, sub_chunked_array.chunks)
  end
end