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.

功能/支持/ env.rb:

require_relative "../../application"

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

World do
  Capybara.app = Application

  include Capybara::DSL
  include RSpec::Matchers
end

功能/ 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

测试一下:

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

测试一下:

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它？

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

我认为 onlyCapybara.app = Application 不应该World在您的示例中所示的内部声明。

这是我的工作env.rb：

ENV['RACK_ENV'] = 'test'
require File.join(File.dirname(__FILE__), '..', '..', 'rvs.rb')

require 'capybara'
require 'capybara/cucumber'
require 'rspec'
require 'r18n-core'

Capybara.app = RVS

class RVSWorld
  include R18n::Helpers
  include Capybara::DSL
  include RSpec::Expectations
  include RSpec::Matchers
end

World do
  RVSWorld.new
end

正如您所看到的，RVSWorld 类只有包含必要模块的语句。