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_key_actor_vi.rb
    path of file: ./repos/truffleruby/test/mri/tests/reline
    
    the code of the file until where you have to start completion: require_relative 'helper'

class Reline::KeyActor::ViInsert::Test < Reline::TestCase
  def setup
    Reline.send(:test_mode)
    @prompt = '> '
    @config = Reline::Config.new
    @config.read_lines(<<~LINES.split(/(?<=\n)/))
      set editing-mode vi
    LINES
    @encoding = Reline::IOGate.encoding
    @line_editor = Reline::LineEditor.new(@config, @encoding)
    @line_editor.reset(@prompt, encoding: @encoding)
  end

  
    
  def test_vi_change_meta
    input_keys("aaa bbb ccc ddd eee\C-[02w")
    assert_byte_pointer_size('aaa bbb ')
    assert_cursor(8)
    assert_cursor_max(19)
    assert_line('aaa bbb ccc ddd eee')
    input_keys('cwaiueo')
    assert_byte_pointer_size('aaa bbb aiueo')
    assert_cursor(13)
    assert_cursor_max(21)
    assert_line('aaa bbb aiueo ddd eee')
    input_keys("\C-[")
    assert_byte_pointer_size('aaa bbb aiue')
    assert_cursor(12)
    assert_cursor_max(21)
    assert_line('aaa bbb aiueo ddd eee')
    input_keys('cb')
    assert_byte_pointer_size('aaa bbb ')
    assert_cursor(8)
    assert_cursor_max(17)
    assert_line('aaa bbb o ddd eee')
  end