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spec/rails_helper.rb 与 spec/spec_helper.rb 有何不同? 我需要吗?

[英]How is spec/rails_helper.rb different from spec/spec_helper.rb? Do I need it?

我是第二次做 Rails 教程。 当我输入这个

rails generate integration_test static_pages

我得到spec/rails_helper.rbspec/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“详细”)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,有没有办法摆脱rails_helper.rb文件而不会弄乱一切?

rspec-rails 3 生成spec_helper.rbrails_helper.rb spec_helper.rb用于不依赖于 Rails 的规范(例如 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,大部分或全部)。 rails_helper.rb需要spec_helper.rb 所以不,不要摆脱rails_helper.rb 在您的规范中需要它(而不是spec_helper.rb )。

如果你希望你的非 Rails 依赖的规范强制它们是非 Rails 依赖的,并且在你自己运行它们时尽可能快地运行,你可以在那些中需要spec_helper.rb而不是rails_helper.rb 但它是非常方便-r rails_helper.rspec而不需要一个帮手或其他每个规格文件,这样肯定会成为一种流行的做法。

如果您使用的弹簧预加载,每个班只需要加载一次,并且弹簧加载类热切,即使你只运行需要一个规范spec_helper ,所以没有尽可能多的价值,仅需要在spec_helper在一些文件.

来源: https : //www.relishapp.com/rspec/rspec-rails/docs/upgrade#default-helper-files

您始终可以将所有配置组合到 spec_helper 中,并且只需要在 rails 帮助文件中使用规范帮助文件。

这绝不是“理想的”,因为在一天结束时,您正在手动进行此“重构”,但如果它真的困扰您。 只知道这完全取决于您如何构建Rspec.configure

#rails_helper.rb

require 'spec_helper'

#EMPTY FILE

只需引入所有 Rails 特定设置

# 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_desires

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