ruby-on-rails-3 – 参数个数错误(0表示1)(ArgumentError)

概述我使用devise作为身份验证系统并创建了一个场景. Scenario: Home page have a login page When I go to the home page And user is not logged in Then I should see "Sign In" 用于步骤定义 When /^user is not logged in$/ do 我使用devise作为身份验证系统并创建了一个场景.

Scenario: Home page have a login page    When I go to the home page    And user is not logged in    Then I should see "Sign In"

用于步骤定义

When /^user is not logged in$/ do  signed_in? == falseend

我还为黄瓜世界添加了Devise助手.

World(Devise::Controllers::Helpers)

和黄瓜正在生成此错误：

And user is not logged in           # features/step_deFinitions/web_steps.rb:260      wrong number of arguments (0 for 1) (ArgumentError)      ./features/step_deFinitions/web_steps.rb:261:in `/^user is not logged in$/'      features/manage_home_page.feature:13:in `And user is not logged in'

它为什么生成以及如何修复它？

更新

signed_in的定义？方法是

# Return true if the given scope is signed in session. If no scope given,return  # true if any scope is signed in. Does not run authentication hooks.  def signed_in?(scope=nil)    [ scope || Devise.mapPings.keys ].flatten.any? do |scope|       warden.authenticate?(:scope => scope)    end  end

它在Devise中定义,我通过将此代码World(Devise :: Controllers :: Helpers)编写到cucumber的paths.rb文件中,将帮助器添加到黄瓜中.

解决方法 试试这个

When /^user is not logged in$/ do  user_signed_in?.should be_falseend

更新
我想你需要做这样的事情

When /^user is not logged in$/ do |user|   #check here user not logged inend

要么
您可以尝试将功能修改为

Scenario: Home page has a login page  Given I am on the home page  And I am not logged in  Then I should see "Sign In"

然后在步骤中

Given /^user is not logged in$/ do  visit('users/sign_out')  # this will ensure that the user is not logged inend

总结

以上是内存溢出为你收集整理的ruby-on-rails-3 – 参数个数错误(0表示1)(ArgumentError)全部内容，希望文章能够帮你解决ruby-on-rails-3 – 参数个数错误(0表示1)(ArgumentError)所遇到的程序开发问题。

如果觉得内存溢出网站内容还不错，欢迎将内存溢出网站推荐给程序员好友。