Cucumber例子：

　　我希望实现一个文件管理系统的存档功能，在设计和编码前，我先用Cucumber将我需要的功能描述出来。

Feature：archive old record 

  As a admin 

  I want to archive old records 

  So that I can keep my current records list small and clean 

  

  Scenario: archive old record 

    Given 1 record "A" with date "2011-03-07"

    And 1 record "B" with date "2011-03-17"

    When I run "old record archive"

    Then system should move record "A" into archive forlder 
 


　　针对每个步骤，如Given 1 record "A" with date "2011-03-07"，编写其对应的ruby代码，如：

/Given 1 record "" with date ""/ do |id， date| 

  create_record("id"=>id， "date"=>date) 

  #此处，create_record会被调用2次，第一次参数是A， 2011-03-07，第二次参数是B，2011-03-17 

end

  

/When I run ""/ do |cmd| 

  system(cmd) 

  #此处，system会被调用，参数是old record archive 

end

  

/Then system should move record "" into archive folder/ do |record| 

  search_record_in_archive_folder(record).should == true

  #此处，search_record_in_archive_folder会被调用，record为“A" 

end