You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_arith_seq_beg_len_step.rb
    path of file: ./repos/truffleruby/test/mri/tests/cext-ruby/arith_seq
    
    the code of the file until where you have to start completion: # frozen_string_literal: false
require 'test/unit'

class Test_ArithSeq < Test::Unit::TestCase
  def test_beg_len_step
    assert_separately([], <<-"end;") #do
      require 'c/arith_seq/beg_len_step'

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 0, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 1, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 3, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 0, 0)
      assert_equal(nil, r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 1, 0)
      assert_equal([true, 1, 0, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 2, 0)
      assert_equal([true, 1, 1, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 3, 0)
      assert_equal([true, 1, 2, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 4, 0)
      assert_equal([true, 1, 3, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 5, 0)
      assert_equal([true, 1, 3, 1], r)

      r = Enumerator::Arithmet
    
  def test_beg_len_step
    assert_separately([], <<-"end;") #do
      require 'c/arith_seq/beg_len_step'

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 0, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 1, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__([1, 2, 3], 3, 0)
      assert_equal(false, r)

      r, = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 0, 0)
      assert_equal(nil, r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 1, 0)
      assert_equal([true, 1, 0, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 2, 0)
      assert_equal([true, 1, 1, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 3, 0)
      assert_equal([true, 1, 2, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 4, 0)
      assert_equal([true, 1, 3, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 5, 0)
      assert_equal([true, 1, 3, 1], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__((-10..10).step(2), 24, 0)
      assert_equal([true, 14, 0, 2], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__((-10..10).step(3), 24, 0)
      assert_equal([true, 14, 0, 3], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__((-10..10).step(3), 22, 0)
      assert_equal([true, 12, 0, 3], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__((-10..10).step(-3), 22, 0)
      assert_equal([true, 10, 3, -3], r)

      r = Enumerator::ArithmeticSequence.__beg_len_step__(1..3, 0, 1)
      assert_equal([true, 1, 3, 1], r)
    end;
  end