spec/rails_helper.rb与spec/spec_helper.rb有什么不同？我需要它吗？
我正在做Rails教程的第二次。当我输入以下内容时
rails generate integration_test static_pages我得到了spec/rails_helper.rb和spec/spec_helper.rb，而不仅仅是spec/spec_helper.rb
现在，当我运行我的测试时，它们比我上次运行时更长(更“冗长”)和更慢。我想知道这两个文件之间的区别是什么，以及我是否做错了什么。另外，有没有一种方法可以在不弄乱一切的情况下删除rails_helper.rb文件？
回答 2
Stack Overflow用户
发布于 2014-06-11 00:04:53
rspec-rails 3生成spec_helper.rb和rails_helper.rb。spec_helper.rb用于不依赖于Rails的规范(比如lib目录中的类的规范)。rails_helper.rb用于依赖于Rails的规范(在Rails项目中，大多数或全部)。rails_helper.rb需要spec_helper.rb。所以不，不要去掉rails_helper.rb；在你的规范中需要它(而不是spec_helper.rb)。
如果您希望非Rails依赖的规范强制它们不依赖于Rails，并且当您自己运行它们时尽可能快地运行，那么您可以在这些规范中使用spec_helper.rb而不是rails_helper.rb。但是在您的.rspec中使用-r rails_helper非常方便，而不需要在每个规范文件中使用一个或另一个帮助器，因此这肯定是一种流行的方法。
如果您使用的是spring预加载器，那么每个类只需要加载一次，并且是spring loads classes eagerly even if you only run a single spec that requires spec_helper，所以在某些文件中只需要spec_helper没有多大价值。
来源：https://www.relishapp.com/rspec/rspec-rails/docs/upgrade#default-helper-files
Stack Overflow用户
发布于 2019-12-24 00:58:27
您可以随时将所有配置组合到spec_helper中，并且只需要rails助手文件中的spec helper。
这绝对不是“理想的”，因为在一天结束的时候，你是手动地做这个“重构”，但如果它真的困扰你的话。只需知道如何构建Rspec.configure完全取决于您
#rails_helper.rb
require 'spec_helper'
#EMPTY FILE中引入所有rails特定的设置。
# spec_helper.rb
# This file is copied to spec/ when you run 'rails generate rspec:install'
require 'spec_helper'
ENV['RAILS_ENV'] ||= 'test'
require File.expand_path('../config/environment', __dir__)
# Prevent database truncation if the environment is production
abort("The Rails environment is running in production mode!") if Rails.env.production?
require 'rspec/rails'
# Add additional requires below this line. Rails is not loaded until this point!
# Requires supporting ruby files with custom matchers and macros, etc, in
# spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are
# run as spec files by default. This means that files in spec/support that end
# in _spec.rb will both be required and run as specs, causing the specs to be
# run twice. It is recommended that you do not name files matching this glob to
# end with _spec.rb. You can configure this pattern with the --pattern
# option on the command line or in ~/.rspec, .rspec or `.rspec-local`.
#
# The following line is provided for convenience purposes. It has the downside
# of increasing the boot-up time by auto-requiring all files in the support
# directory. Alternatively, in the individual `*_spec.rb` files, manually
# require only the support files necessary.
#
# Dir[Rails.root.join('spec', 'support', '**', '*.rb')].each { |f| require f }
# Checks for pending migrations and applies them before tests are run.
# If you are not using ActiveRecord, you can remove these lines.
begin
ActiveRecord::Migration.maintain_test_schema!
rescue ActiveRecord::PendingMigrationError => e
puts e.to_s.strip
exit 1
end
RSpec.configure do |config|
... all our config.whatever_your_heart_desireshttps://stackoverflow.com/questions/24145329
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