如何使用 测试此 ActiveRecord 关系应该匹配器?
楷模
class User < ActiveRecord::Base
has_many :articles
end
class Article < ActiveRecord::Base
belongs_to :author, class_name: 'User'
end
测试
describe User do
it { should have_many(:articles) }
end
我收到以下错误:
1) User should have many articles
Failure/Error: it { should have_many(:articles) }
Expected User to have a has_many association called articles (Article does not have a user_id foreign key.)
# ./spec/models/user_spec.rb:4:in `block (2 levels) in <top (required)>'
所以它显然希望将关系字段命名为
user_id
因为用户类名。我希望必须有一些测试方法可以用来覆盖这个期望,比如it { should have_many(:articles).as(:owner) }
但我找不到类似的东西。我错过了一些明显的东西吗?
最佳答案
应该是匹配器包括一个 .with_foreign_key()
选项。
https://github.com/thoughtbot/shoulda-matchers#have_many
所以在你的例子中:
describe User do
it { should have_many(:articles).with_foreign_key('author_id') }
end
我相信你的模型应该如何:
class User < ActiveRecord::Base
has_many :articles, foreign_key: "author_id"
end
关于ruby-on-rails - 应该使用自定义关系名称匹配器 has_many,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/21657906/