重写共享示例组中rspec2

Question

在rspec的1 I能做

describe "Something", :shared => true do 
include SomeModule # which has the :a_method method 

def a_method(options) 
    super(options.merge(:option => @attr) 
end 

it "foofoofoo" do 
end 
end 

describe "Something else" do 
    before(:each) do 
    @attr = :s_else 
    end 

    it_should_behave_like "Something" 

    it "barbarbar" do 
    a_method(:name => "something else") 
    Something.find("something else").name.should == "Something else" 
    end 
... 
end 

即，我可以使用:shared => true不仅重构的例子，但也共享方法的定义和属性。我意识到这个例子是人为设计的，但是如何在不触及SomeModule模块或Something类的情况下将它写入rspec> = 2？

Answer 1

您可以shared_examples_for

shared_examples_for "something" do 
    include SomeModule # which has the :a_method method 

    def a_method(options) 
    super(options.merge(:option => @attr)) 
    end 

    it "foofoofoo" do 
    end 
end 

做到这一点，与it_behaves_like拨打：

it_behaves_like "something" 

编辑

若昂正确地指出，这不包括在实例SomeModule描述块。包括必须在共享示例组之外进行，例如，在该规范文件的顶部

include SomeModule # which has the :a_method method 

# ... 

shared_examples_for "something" do 
    def a_method(options) 
    super(options.merge(:option => @attr)) 
    end 

    it "foofoofoo" do 
    end 
end 

大卫赫利姆斯基讨论的在RSpec的2共享其实例可以在this blog post是恰当的一些新的特点。