Ruby on rails Rspec在描述的_类或Dummy类中测试AR模型问题?
我有一个AR模型,看起来像这样:Ruby on rails Rspec在描述的_类或Dummy类中测试AR模型问题?,ruby-on-rails,ruby,ruby-on-rails-4,rspec,Ruby On Rails,Ruby,Ruby On Rails 4,Rspec,我有一个AR模型,看起来像这样: module Uuidable extend ActiveSupport::Concern included do before_create :generate_uuid end protected def generate_uuid self.uuid = #some code end end shared_examples_for Uuidable do let(:model) { FactoryGi
module Uuidable
extend ActiveSupport::Concern
included do
before_create :generate_uuid
end
protected
def generate_uuid
self.uuid = #some code
end
end
shared_examples_for Uuidable do
let(:model) { FactoryGirl.build(described_class) }
it { expect(model).to callback(:generate_uuid).before(:create) }
describe '#generate_uuid' do
it { expect{model.save}.to change {model.uuid} }
it 'should not generate same uuid' do
allow(SecureRandom).to receive(:uuid).and_return("c640f32c-e21b-44ea-913e-7041fdb6de85", "c640f32c-e21b-44ea-913e-7041fdb6de85", "e93f0130-3a81-406f-8871-609d89ae0850")
model.save
expect(FactoryGirl.create(described_class).uuid).not_to eq(model.uuid)
end
context 'generated uuid field' do
before(:each) { model.save }
it { expect(model.uuid).to be_kind_of(String) }
it { expect(model.uuid).to match(/^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i)}
end
end
end
到目前为止,我已经为Uuidable编写了共享示例,如下所示:
module Uuidable
extend ActiveSupport::Concern
included do
before_create :generate_uuid
end
protected
def generate_uuid
self.uuid = #some code
end
end
shared_examples_for Uuidable do
let(:model) { FactoryGirl.build(described_class) }
it { expect(model).to callback(:generate_uuid).before(:create) }
describe '#generate_uuid' do
it { expect{model.save}.to change {model.uuid} }
it 'should not generate same uuid' do
allow(SecureRandom).to receive(:uuid).and_return("c640f32c-e21b-44ea-913e-7041fdb6de85", "c640f32c-e21b-44ea-913e-7041fdb6de85", "e93f0130-3a81-406f-8871-609d89ae0850")
model.save
expect(FactoryGirl.create(described_class).uuid).not_to eq(model.uuid)
end
context 'generated uuid field' do
before(:each) { model.save }
it { expect(model.uuid).to be_kind_of(String) }
it { expect(model.uuid).to match(/^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i)}
end
end
end
所以。。。我想知道在每个Uuidable
模型中测试生成uuid
方法行为是否合适
我考虑的第二个选择是在类DummyClass
中创建测试Uuidable
关注点,并为共享示例创建只保留it{expect(model).回调(:generate_uid).在(:create)}
你怎么认为?最好的方法是什么?我更喜欢第一种方法。假设您的另一个模型在保存之前,或者在创建不允许将数据保存到表中的回调之前,有一些验证
通过使用共享的\u示例\u,您可以很容易地分发所需的规格,以便对此类模型类中使用的Uuidable
问题进行测试
另一方面,如果使用第二种方法,它将仅限于一个模型:DummyClass
,并且可能每次都通过其规范,而不管使用Uuidable
模块的模型中的验证或其他回调失败
你的方法是正确的。只需使用,它的行为就像模型规范中的“Uuidable”
,使用这个关注点,并让它们独立运行