捆绑执行 rspec VS rspec 规范

问题描述

Ruby 1.9.2 轨道 3.1

Ruby 1.9.2 Rails 3.1

这里是问题 bundle exec rspec spec/ 不起作用，但 rspec spec/ 运行正常.

Here is the problem bundle exec rspec spec/ does not work, but rspec spec/ runs ok.

当我运行 c:\RailsInstaller\work\apptwit>bundle exec rspec spec/(这是我的应用所在的目录，所以不需要指定 spec 的路径)我收到

When I run c:\RailsInstaller\work\apptwit>bundle exec rspec spec/ (this is the directory where my app is located, so the path to spec would not need to be specified)I receive

c:/RailsInstaller/work/apptwit/spec/controllers/pages_controller_spec.rb:1:in `require': no such file to load -- spec_he lper (LoadError)
        from c:/RailsInstaller/work/apptwit/spec/controllers/pages_controller_spec.rb:1:in `<top (required)>'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:i
n `load'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:i
n `block in load_spec_files'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:i
n `map'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/configuration.rb:459:i
n `load_spec_files'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/command_line.rb:18:in
`run'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:80:in `run_i
n_process'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:69:in `run'
        from C:/RailsInstaller/Ruby1.9.2/lib/ruby/gems/1.9.1/gems/rspec-core-2.7.1/lib/rspec/core/runner.rb:10:in `block
 in autorun'

/spec 目录和 spec_helper.rb 一样存在.

/spec directory exists as exists spec_helper.rb in it.

所以基本上我有两个问题:

So basically I have 2 questions:

1. 为什么 bundle exec rspec spec/ 不起作用而 rspec spec/ 没有问题?

1. Why doesn't bundle exec rspec spec/ work while rspec spec/ has no problems?

这两个命令有什么区别?

What is the difference between those two commands?

推荐答案

看看 这个答案.bundle exec 更改您的 $PATH 或 %PATH% 在 Windows 的情况下.因此，通过使用 bundle exec rspec，您调用的是 Gemfile 中指定的 RSpec 版本.rspec 在没有 Bundler 的情况下运行会执行您的 $PATH 中的那个.

Take a look at this answer. bundle exec changes your $PATH, or %PATH% in case of Windows. As a result, by using bundle exec rspec you're calling the RSpec's version which is specified in your Gemfile. rspec ran without Bundler executes the one in your $PATH.

您看到的错误可能是由于您的 $PATH 中的 RSpec 版本与您正在使用的 Rails 版本不兼容造成的.Bundler 安装和执行的版本(使用 bundle exec rspec)兼容并且工作正常.

The error you see might be caused by the fact that the RSpec version in your $PATH is incompatible with Rails version you're working with. The version installed and executed by Bundler (with bundle exec rspec) is compatible and works fine.

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