使用rspec检查错误的枚举

时间:2015-03-22 18:41:16

标签: ruby-on-rails ruby rspec enums

有没有人知道如何在rspec中检查无效的枚举响应?我可以检查以确保枚举不是没有错误,但是当我检查确保坏的枚举值不起作用时,我收到错误。这些是两个规格:

it 'is not valid without question type' do
    expect(build(:question, question_type: nil)).to have(1).errors_on(:question_type)
end

it 'is not valid with a bad question type' do
    expect(build(:question, question_type: :telepathy)).to have(1).errors_on(:question_type)
end

这就是我的模型:

class Question < ActiveRecord::Base
    enum question_type: [ :multiple_choice ]
    validates :question_type, presence: true

end

这是错误:

 Failure/Error: expect(build(:question, question_type: :telepathy)).to have(1).errors_on(:question_type)
     ArgumentError:
       'telepathy' is not a valid question_type

这是我的工厂:

FactoryGirl.define do
  factory :question, :class => 'Question' do
    question_type :multiple_choice
  end
end

感谢您的帮助!

1 个答案:

答案 0 :(得分:5)

您的问题是您需要执行构建作为proc来评估结果。通过将括号更改为花括号来执行此操作,如https://stackoverflow.com/a/21568225/1935918

中所述
it 'is not valid with a bad question type' do
  expect { build(:question, question_type: :telepathy) }
    .to raise_error(ArgumentError)
    .with_message(/is not a valid question_type/)
end