ruby-on-rails - 具有枚举和关联的工厂女孩

Question

我有一个同时使用关联和枚举属性的模型。

class ProjectItem < ActiveRecord::Base
  belongs_to :project

  enum status: {open: 0, pending: 1, completed: 2}

当我对具有关联的模型的创建操作运行测试时，我使用 build(:model_name).attributes，如下所示:

it "creates a new ProjectItem" do
  expect {
    post :create, document_project_item: build(:project_item).attributes
  }.to change(ProjectItem, :count).by(1)
end

这失败了，我发现 this issue thread that explains why it doesn't work 。根据评论，我能够确定在具有 enum 属性但没有关联的表上，可以按预期使用 attributes_for(:model_name) 。

问题线程似乎没有建议解决方法，尽管我承认我不明白 FactoryGirl 方法 100% 在幕后所做的事情。这是工厂:

factory :project_item do
  project
  name { Faker::Company.bs }
  description { Faker::Lorem.paragraph }
  status :open
  due { Faker::Date.between(2.days.ago, 10.days.from_now) }
  sequence(:position) {|n| n }
  completed_at { Faker::Date.between(1.year.ago, Date.today) }
end

我也尝试在 status 中放入一个整数，但出现了相同的错误:

 Failure/Error: post :create, project_item: build(:project_item).attributes
 ArgumentError:
   '0' is not a valid status

Answer 1

我愿意接受其他解决方案，但这就是我想出的解决方法。

let(:project_attributes) { build(:project_item).attributes.merge(status: 'pending') }
it "creates a new ProjectItem" do
  expect {
    post :create, project_id: project.id, project_item: project_attributes
  }.to change(ProjectItem, :count).by(1)
end