我的模型中有一个私有方法,如下所示：
validate :record_uniq
private
def record_uniq
if record_already_exists?
errors.add(:base,"already exists")
end
end
def record_already_exists?
question_id = measure.question_id
self.class.joins(:measure).
where(measures: {question_id: ques_id}).
where(package_id: pack_id).
exists?
end
这种方法更像是一种唯一性范围,可以防止重复记录.我想知道如何使用shoulda或rspec编写验证测试：record_uniq？
我试过的例子：
describe Foo do
before do
@bar = Foo.new(enr_rds_measure_id: 1,enr_rds_package_id: 2)
end
subject { @bar }
it { should validate_uniqueness_of(:record_uniq) }
end
解决方法
简单 – 构建一个未通过验证的对象,验证它,并验证是否已设置正确的错误消息.
例如(如果您有一个名为City的模型)：
it 'validates that city is unique' do city = City.new # add in stuff to make sure it will trip your validation city.valid? city.should have(1).error_on(:base) # or city.errors(:base).should eq ["already exists"] end