c_glib/test/test-binary-array.rb

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

  def test_new
    value_offsets = Arrow::Buffer.new([0, 2, 5, 5].pack("l*"))
    data = Arrow::Buffer.new("\x00\x01\x02\x03\x04")
    assert_equal(build_binary_array(["\x00\x01", "\x02\x03\x04", nil]),
                 Arrow::BinaryArray.new(3,
                                        value_offsets,
                                        data,
                                        Arrow::Buffer.new([0b011].pack("C*")),
                                        -1))
  end

  def test_value
    data = "\x00\x01\x02"
    builder = Arrow::BinaryArrayBuilder.new
    builder.append(data)
    array = builder.finish
    assert_equal(data, array.get_value(0).to_s)
  end

  def test_buffer
    data1 = "\x00\x01\x02"
    data2 = "\x03\x04\x05"
    builder = Arrow::BinaryArrayBuilder.new
    builder.append(data1)
    builder.append(data2)
    array = builder.finish
    assert_equal(data1 + data2, array.buffer.data.to_s)
  end

  def test_offsets_buffer
    data1 = "\x00\x01"
    data2 = "\x02\x03\x04"
    builder = Arrow::BinaryArrayBuilder.new
    builder.append(data1)
    builder.append(data2)
    array = builder.finish
    byte_per_offset = 4
    assert_equal([0, 2, 5].pack("l*"),
                 array.offsets_buffer.data.to_s[0, byte_per_offset * 3])
  end
end