rspec 测试单独通过，但与其他测试一起运行时失败 [英] rspec test passes in isolation, but fails when run with other tests

问题描述

我有一些用 RSpec 编写的规范，用于测试各种模型.我使用 Factory Girl 生成对象进行测试.

I have some specs, written in RSpec, that test various models. I use Factory Girl to generate object for testing.

现在最奇怪的事情发生了:
当我运行 rspec spec/models/specific_model_spec.rb --- 这通过了该规范中的所有测试

Now the most peculiar thing happens:
When i run rspec spec/models/specific_model_spec.rb --- this passes all the tests in that spec

但是，当我运行 rspec spec/models 时 --- 本规范中的每个测试都失败，引用创建的无效关联(通过工厂)

However, when I run rspec spec/models --- every test in this spec fails referring to an invalid association being created (via a factory)

工厂创建的关联显然是有效的，隔离运行测试也表明.

The association created by the factory is obviously valid as running the test in isolation also shows.

可能导致这种行为的原因是什么?

What could be causing this behavior?

更新:
将规范与其他规范一起运行时出现的错误(每次失败的错误都相同):

Update:
The error i get when running the spec together with other specs (the error is the same for each failure):

6) StreamItem adds a stream_item to a project and consultant when an engagement is added 
 Failure/Error: @project = Factory.create(:project, :name => 'bar' )
 Validation failed: Customer is invalid
 # ./spec/models/stream_item_spec.rb:44:in `block (2 levels) in <top (required)>'

project factory 在另一个规范中进行了测试并通过了良好的...

The project factory is tested in another spec and passes fine...

更新 2:使用的相关工厂代码如下:

Update 2: The relevant factory code used is a follows:

Factory.define :manager, :class => User do |f|
  f.sequence(:email) { |n| "bar#{n}@example.com" }
  f.password "pass12"
  f.sequence(:name) { |n| "Erwin#{n}" }
  f.roles_mask 4
end

Factory.define :customer do |f|
  f.sequence(:name) { |n| "foo customer#{n}" }
  f.association :last_actor, :factory => :manager
  f.account_id 1
end

Factory.define :project do |f|
  f.sequence(:name) { |n| "foo project#{n}" }
  f.association :manager, :factory => :manager
  f.association :customer, :factory => :customer
  f.start_date Date.today << 1
  f.finish_date Date.today >> 2
  f.status 1
  f.association :last_actor, :factory => :manager
  f.account_id 1
end

推荐答案

这通常表示您的其他规范在 DB 中留下了一些与后来的工厂调用冲突的数据.我怀疑如果您调查工厂创建方法失败的原因，您会看到唯一性验证失败，可能在客户的电子邮件中.

This usually indicates that your other specs leave some data in the DB that conflicts with later factory calls. I suspect if you look into why the factory create method failed, you'll see a validation for uniqueness fail, maybe on the customer's email.

关闭交易装置:

# spec_helper.rb
config.use_transactional_fixtures = false

并改用数据库清理器.这篇博文 也可能有帮助.

and use database cleaner instead. This blog post might help as well.

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