ruby-on-rails - 我如何在 FactoryGirl 中为循环关联创建工厂？

Question

我在尝试为我在项目中定义的某些对象和关联创建工厂时遇到了问题。我有一种循环关联，其中一个对象与另外两个随后连接在一起的对象关联。

+--------------+           +-------------+
|              |           |             |
| TestCase     +---------> | TestDataGrid|
|              |           |             |
+------+-------+           +------+------+
       |                          |
       |                          |
       |                          |
       v                          v
+--------------+           +--------------+
|              |           |              |
|              |           |              |
| TestVariable |           | TestDataSet  |
|              |           |              |
+------+-------+           +------+-------+
       |                          |
       |                          |
       |                          |
       |                          |
       |     +---------------+    |
       |     |               |    |
       |     |               |    |
       +---> | TestDataValue |<---+
             |               |
             +---------------+

---

class TestCase < ActiveRecord::Base
  has_many :test_variables, dependent: :destroy
  has_many :test_data_grids
  #...omitted code...
end

class TestVariable < ActiveRecord::Base
  belongs_to :test_case
  has_many :test_data_values
  #...omitted code...
end

class TestDataValue < ActiveRecord::Base
  belongs_to :test_variable
  belongs_to :test_data_set
  #...omitted code...
end

class TestDataSet < ActiveRecord::Base
  belongs_to :test_data_grid
  has_many :test_data_values
  #...omitted code...
end

class TestDataGrid < ActiveRecord::Base
  belongs_to :test_case
  has_many :test_data_sets
  #...omitted code...
end

基本上关联在 TestCase 中拆分并在 TestDataValue 中再次加入，我如何创建一个工厂来打开和关闭具有相同对象的圆圈？

Answer 1

这没有经过测试，但是:

FactoryGirl.define do

 factory :test_data_value do
  test_data_set
  test_variable
  # attributes
 end

 factory :test_data_set do
  test_data_grid
  # attributes
 end

 factory :test_variable do
  test_case
  # attributes
 end

 factory :test_case do
  # attributes
 end

 factory :test_data_grid do
  test_case
  # attributes
 end
end

然后在规范中:

@test_data_value = FactoryGirl.create(:test_data_value)

@test_variable = @test_data_value.test_variable
@test_data_set = @test_data_value.test_data_set