13  

By combining the ideas from Cristophe's and Piotr's answers, I came up with a solution that worked for me. I'm using rspec and rails 3.0.

通过结合Cristophe和Piotr的答案的想法,我想出了一个适合我的解决方案。我正在使用rspec和rails 3.0。

it 'should route like i want it to' do 
  Rack::MockRequest::DEFAULT_ENV["HTTP_ACCEPT"] = "*/*"
  {get: "/foo/bar"}.
    should route_to(
    controller: 'foo',
    action: 'bar',
  )
  Rack::MockRequest::DEFAULT_ENV.delete "HTTP_ACCEPT"
end

5  

Currently you can't send addititional Headers in Routing specs, this is due to line 608 in actionpack-3.2.5/lib/action_dispatch/routing/route_set.rb where it says:

目前你不能在路由规范中发送addititional Headers,这是由于actionpack-3.2.5 / lib / action_dispatch / routing / route_set.rb中的第608行所示:

env = Rack::MockRequest.env_for(path, {:method => method})

path is your requested path "/my/friends.json" and method is :get The resulting env contains something like the following:

path是您请求的路径“/my/friends.json”,方法是:get生成的env包含如下内容:

{
 "rack.version"=>[1, 1],
 "rack.input"=>#<StringIO:0xb908f5c>,
 "rack.errors"=>#<StringIO:0xb908fac>,
 "rack.multithread"=>true,
 "rack.multiprocess"=>true,
 "rack.run_once"=>false,
 "REQUEST_METHOD"=>"GET",
 "SERVER_NAME"=>"your-url.com", # if path was http://your-url.com/
 "SERVER_PORT"=>"80",
 "QUERY_STRING"=>"",
 "PATH_INFO"=>"/",
 "rack.url_scheme"=>"http",
 "HTTPS"=>"off",
 "SCRIPT_NAME"=>"",
 "CONTENT_LENGTH"=>"0"
}

If you are able to mock Rack::MockRequest::env_for it should be possible to inject other headers than the ones generated by env_for (see Hash above).

如果你能够模拟Rack :: MockRequest :: env_for,那么应该可以注入除env_for生成的头之外的其他头文件(参见上面的哈希)。

Other than that you are currently using the route_to matcher wrong, you should call it on a Hash where you specify the method and the path like this:

除了你当前正在使用route_to matcher错误之外,你应该在Hash上调用它,你可以在其中指定方法和路径,如下所示:

{ get: '/' }.should route_to(controller: 'main', action: 'index')

Let us know if you were able to Mock out that env_for and let it return your headers, would be nice to know.

如果您能够模拟出env_for并让它返回标题,请告诉我们。很高兴知道。

Regards Christoph

5  

before do
  ActionDispatch::TestRequest::DEFAULT_ENV["action_dispatch.request.accepts"] = "application/vnd.application-v1+json"
end

after do
  ActionDispatch::TestRequest::DEFAULT_ENV.delete("action_dispatch.request.accepts")
end

2  

You can using rspec's and_wrap_original to mock the Rack::MockRequest.env_for method:

您可以使用rspec的and_wrap_original来模拟Rack :: MockRequest.env_for方法:

expect(Rack::MockRequest).to receive(:env_for).and_wrap_original do |original_method, *args, &block|
  original_method.call(*args, &block).tap { |hash| hash['HTTP_ACCEPT'] = 'application/vnd.myapp+json; level=1' }
end

0  

For Rails 3 and 4 I had done the following in an RSpec around hook:

对于Rails 3和4,我在一个RSpec周围的钩子中完成了以下操作:

around do |example|
  Rack::MockRequest::DEFAULT_ENV['HTTP_ACCEPT'] = 'application/vnd.vendor+json; version=1'

  example.run

  Rack::MockRequest::DEFAULT_ENV.delete 'HTTP_ACCEPT'
end

Since Rack >= 2.0.3 (used by Rails 5) the Rack::MockRequest::DEFAULT_ENV hash is frozen.

由于Rack> = 2.0.3(由Rails 5使用),Rack :: MockRequest :: DEFAULT_ENV哈希被冻结。

You can redefine the constant and use Kernel.silence_warnings to silence the Ruby warnings:

您可以重新定义常量并使用Kernel.silence_warnings来消除Ruby警告:

around do |example|
  silence_warnings do
    Rack::MockRequest::DEFAULT_ENV = Rack::MockRequest::DEFAULT_ENV.dup
  end

  Rack::MockRequest::DEFAULT_ENV['HTTP_ACCEPT'] = 'application/vnd.vendor+json; version=1'

  example.run

  Rack::MockRequest::DEFAULT_ENV.delete 'HTTP_ACCEPT'
end

It's a bit of hack but it works like a charm.

这有点像黑客,但它就像一个魅力。