卡在 Rails 应用程序上

Question

这是终端中的问题：

    treehouse:~/projects/odot (master *) $ bin/rails generate model todo_item todo_list:references content:string -p
/home/treehouse/projects/odot/config/application.rb:23:in `<class:Application>': undefined method `configure' for RSpec:Module (NoMethodError)
    from /home/treehouse/projects/odot/config/application.rb:10:in `<module:Odot>'
    from /home/treehouse/projects/odot/config/application.rb:9:in `<top (required)>'
    from /home/treehouse/.rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/railties-4.0.1/lib/rails/commands.rb:43:in `require'
    from /home/treehouse/.rbenv/versions/2.0.0-p353/lib/ruby/gems/2.0.0/gems/railties-4.0.1/lib/rails/commands.rb:43:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

这里是 odot/config/application.rb 文件：

require File.expand_path('../boot', __FILE__)

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(:default, Rails.env)

module Odot
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those specified here.
    # Application configuration should go into files in config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
    # config.time_zone = 'Central Time (US & Canada)'

    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
    # config.i18n.default_locale = :de

    RSpec.configure do |c|
        c.expose_current_running_example_as :example
    end

    RSpec.configure do |c|
        c.expose_current_running_example_as :example
    end
  end
end

这里是 bin/rails 文件：

#!/usr/bin/env ruby
APP_PATH = File.expand_path('../../config/application',  __FILE__)
require_relative '../config/boot'
require 'rails/commands'

我不知道如何访问 .rbenv/.... 文件。

我似乎无法解决问题所在。这些是启动我的 rails 待办事项列表应用程序时文件夹中的默认文件。我在三个不同的文件中做了几个 rspec 测试，在完成最后一个文件后，这不会让我继续执行任何其他任务。

这在运行 bin/rake 时会一直持续：

rake aborted!
NoMethodError: undefined method `configure' for RSpec:Module
/home/treehouse/projects/odot/config/application.rb:23:in `<class:Application>'
/home/treehouse/projects/odot/config/application.rb:10:in `<module:Odot>'
/home/treehouse/projects/odot/config/application.rb:9:in `<top (required)>'
/home/treehouse/projects/odot/Rakefile:4:in `require'
/home/treehouse/projects/odot/Rakefile:4:in `<top (required)>'

那么这里是 rakefile 文件：

# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

require File.expand_path('../config/application', __FILE__)

Odot::Application.load_tasks

我不知道发生了什么。运气好的话？干杯。

Answer 1

不要将 RSpec 配置放入 application.rb。 application.rb 用于 Rails 应用程序的核心配置，适用于所有环境。您可以使用它来设置诸如时区之类的东西，以及要在 Rails 堆栈中使用的中间件。

RSpec 应该放在 Gemfile 的测试组中，以便在不需要时不会加载它 - IE 在生产中。

gem 'something'

group :test do
  gem 'rspec-rails'
end

application.rb 还有一个非常重要的部分：

Bundler.require(:default, Rails.env)

这告诉 Bundler 加载默认组和当前“环境组”（开发、测试或生产）中的所有 gem。因此，如果您在生产环境中启动服务器，它会在RSpec.configure 线上爆炸，因为不需要（也不应该）RSpec gem。

Rspec 配置的正确位置是spec/spec_helper.rb 或spec/rails_helper.rb。