test_66_plus_one.rb

# frozen_string_literal: true

require_relative '../test_helper'
require_relative '../../lib/easy/66_plus_one'
require 'minitest/autorun'

class PlusOneTest < ::Minitest::Test
  def test_default_one
    assert_equal(
      [1, 2, 4],
      plus_one(
        [1, 2, 3]
      )
    )
  end

  def test_default_two
    assert_equal(
      [4, 3, 2, 2],
      plus_one(
        [4, 3, 2, 1]
      )
    )
  end

  def test_default_three
    assert_equal(
      [1, 0],
      plus_one([9])
    )
  end
end