skill-assessment-app/test/test_helpers/answer_validatable.rb

class AnswerValidatable
  include ActiveModel::Validations

  attr_accessor :answer
  attr_accessor :question
  attr_accessor :question_id

  validates :answer, answer_format: true

  MockQuestion = Struct.new(:input_type)

  def initialize input_type, qid = nil
    @input_type = input_type
    @question_id = qid
  end

  def question
    MockQuestion.new(@input_type)
  end
end