如何使用测试此 ActiveRecord 关系shoulda匹配者?
Models
class User < ActiveRecord::Base
has_many :articles
end
class Article < ActiveRecord::Base
belongs_to :author, class_name: 'User'
end
Test
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)>'
所以它显然期望关系字段被命名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,例如
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事情吗?
应该匹配器包括一个.with_foreign_key()
option.
https://github.com/thoughtbot/shoulda-matchers#have_many 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是这样的:
class User < ActiveRecord::Base
has_many :articles, foreign_key: "author_id"
end
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