Ruby on rails RSpec：在每个上下文之后刷新表/销毁对象

如何删除创建的对象（在数据库和内存中）

• 每次测试后
• 在每个上下文之后呢？（在某种情况下，在彼此之间建立测试可能是有意义的）

是否有一种方法可以自动执行此操作

我有以下问题：

每个测试都将条目保存到数据库中。接下来的测试取决于这些条目。即使我想构建依赖于其他测试的测试，我也做不到，因为测试的执行顺序是不可控的

factories.rb：

sequence(:name) { |n| "purchaser #{n}" }      

组织机构规范rb：

context "when no supplier exists" do
  it "finds no associated suppliers" do
    purchaser = create(:organization_purchaser)                
    purchaser.partners.empty?.should == true
  end
end

context "when one supplier exists" do
  it "finds one associated suppliers" do
    purchaser = create(:organization_purchaser)      
    supplier = create(:organization_supplier)
    partnership = create(:partnership, organization: purchaser, partner: supplier)         
    purchaser.partners.last.name.should == "purchaser 1"
  end
end

context "when two suppliers exist" do        
  it "finds two associated suppliers" do
    purchaser = create(:organization_purchaser)      
    2.times do |i|
      supplier = create(:organization_supplier)
      partnership = create(:partnership, organization: purchaser, partner: supplier) 
    end    
    purchaser.partners.last.name.should == "purchaser 2"
  end
end

RSpec输出：

Organization
  #suppliers_for_purchaser
    responds
    when no supplier exists
      finds no associated suppliers
    when two suppliers exist
      finds two associated suppliers
    when one supplier exists
      finds one associated suppliers (FAILED - 1)

Failures:

1) Organization#suppliers_for_purchaser when one supplier exists finds one associated suppliers
 Failure/Error: purchaser.partners.last.name.should == "purchaser 1"
   expected: "purchaser 1"
        got: "purchaser 3" (using ==)

---

您是否尝试添加before方法

describe MyController do

before(:each) do
  User.delete_all
  MyOtherModel.delete_all
  ...
end

---

我想你的问题更多的是关于如何重置工厂女孩序列？这些数据不会存储在数据库中，即使删除所有数据，问题仍然存在。当测试类似的东西时，我发现覆盖factory girl序列更容易

it "finds one associated suppliers" do
    purchaser = create(:organization_purchaser)      
    supplier = create(:organization_supplier , name: "My First Supplier")
    partnership = create(:partnership, organization: purchaser, partner: supplier)         
    purchaser.partners.last.name.should == "My First Supplier"
  end

你可能做的其他事情是

it "finds one associated suppliers" do
        purchaser = create(:organization_purchaser)      
        supplier = create(:organization_supplier)
        partnership = create(:partnership, organization: purchaser, partner: supplier)         
        purchaser.partners.last.should == supplier 
      end

甚至

it "finds one associated suppliers" do
        purchaser = create(:organization_purchaser)      
        supplier = create(:organization_supplier)
        partnership = create(:partnership, organization: purchaser, partner: supplier)         
        purchaser.partners.last.name.should == supplier.name
      end

你应该使用

您只需将以下代码添加到Rspec配置文件

spec\u helper.rb

config.before(:suite) do
  DatabaseCleaner.strategy = :transaction
  DatabaseCleaner.clean_with(:truncation)
end

config.before(:each) do
  DatabaseCleaner.start
end

config.after(:each) do
  DatabaseCleaner.clean
end

更新

从Rails 5.1开始，如果您使用

config.use\u transactional\u tests