ruby - 堆栈级别太深(SystemStackError)

Question

我有 Sinatra 应用程序，需要测试我的应用程序。

features/support/env.rb:

require_relative "../../application"

require "capybara"
require "capybara/cucumber"
require "rspec"

World do
  Capybara.app = Application

  include Capybara::DSL
  include RSpec::Matchers
end

features/one.feature:

Feature: Test homepage
  In order to make sure people can open my site
  I want to check it opened

  Scenario: Opening first page
    Given I have opened homepage    
    Then I should see site header

测试它:

cucumber features\one.feature

结果:

Feature: Test homepage
  In order to make sure people can open my site
  I want to check it opened

  Scenario: Opening first page    # features\one.feature:5
    Given I have opened homepage  # features\one.feature:6
    Then I should see site header # features\one.feature:7

1 scenario (1 undefined)
2 steps (2 undefined)
0m0.006s

You can implement step definitions for undefined steps with these snippets:

Given /^I have opened homepage$/ do
  pending # express the regexp above with the code you wish you had
end

Then /^I should see site header$/ do
  pending # express the regexp above with the code you wish you had
end

好吧，我已经创建了 features/step_definitions/agenda_steps.rb:

Given /^I have opened homepage$/ do
  pending # express the regexp above with the code you wish you had
end

Then /^I should see site header$/ do
  pending # express the regexp above with the code you wish you had
end

测试它:

cucumber features\one.feature

结果:

Feature: Test homepage
  In order to make sure people can open my site
  I want to check it opened

  Scenario: Opening first page    # features\one.feature:5
    Given I have opened homepage  # features/step_definitions/agenda_steps.rb:1
C:/Ruby193/bin/cucumber:19: stack level too deep (SystemStackError)

为什么以及如何解决？

更新:如果我像这样重写我的 env.rb，问题就消失了:

require_relative "../../application"

require "capybara"
require "capybara/cucumber"
require "rspec"


Capybara.app = Application
#World do
#  Capybara.app = Application
# 
#  include Capybara::DSL
#  include RSpec::Matchers
#end

Answer 1

我得到了同样的相似错误..as

stack level too deep (SystemStackError)
/usr/local/rvm/gems/ruby-1.9.2-p290/gems/cucumber-1.1.4/lib/cucumber/core_ext/instance_exec.rb:73..

我在 env.rb 的第一行 中添加了 require 'cucumber/rails'...首先加载。

现在我再也不会遇到那个错误了。