Ruby on rails 在Rspec中的全局before（：all）中设置HTTP_REFERER

为了避免添加

request.env["HTTP_REFERER"] = '/'

对于我创建的每个controller\u spec文件上的before块，我尝试将其添加到全局配置（在spec\u helper.rb中）

问题是，我得到以下错误：

You have a nil object when you didn't expect it!
The error occurred while evaluating nil.env

有人对如何正确实现这一点有任何建议吗

干杯

你试过了吗

  config.before(:type => :controller) do
    request.env["HTTP_REFERER"] = "/"
  end

---

我注意到Matt的答案是两年前的，我不确定他使用的是什么“rspec”版本。 但对于我的情况，我的rspec版本=1.3.2，代码段不工作（总是出错：

You might have expected an instance of Array.
The error occurred while evaluating nil.<<
    from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.2/lib/spec/runner/configuration.rb:181:in `__send__'
    from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.2/lib/spec/runner/configuration.rb:181:in `add_callback'
    from /usr/lib/ruby/gems/1.8/gems/rspec-1.3.2/lib/spec/runner/configuration.rb:101:in `before'
...

参考rspec-1.3.2的文件：

append_before(scope = :each, options={}, &proc)
Appends a global before block to all example groups. scope can be any of 
:each (default), :all, or :suite. 
When :each, the block is executed before each example. 
When :all, the block is executed once per example group, before any of its examples are run. 
When :suite the block is run once before the entire suite is run.

# here the ":each" symbol is very important and necessary.  
# :type => :controller is the "option"
config.before(:each, :type => :controller) do
  request.env["HTTP_REFERER"] = "/"
end

append_before(scope = :each, options={}, &proc)
Appends a global before block to all example groups. scope can be any of 
:each (default), :all, or :suite. 
When :each, the block is executed before each example. 
When :all, the block is executed once per example group, before any of its examples are run. 
When :suite the block is run once before the entire suite is run.