Incompatibility with Rails 7.1?

[araishikeiwai]

Rails 7.1's action_dispatch/testing/integration changed its matching algorithm using include? method in rails/rails@5726b1d

When I upgraded my Rails app, I encountered testing errors like

GRPC::Unavailable:
  14:undefined method `include?' for #<Addressable::URI:0x4de2c URI:http://test.host:80/api/grpc/<redacted>>

When I debugged it, I noticed that the request was stubbed:

      stub_request(:post, "http://test.host/api/grpc/#{proto}/#{action}").to_return do |request|
        post request.uri, params: request.body, headers: request.headers
        {
          headers: response_options.fetch(:headers, response.headers),
          body: response_options.fetch(:body, response.body),
          status: response_options.fetch(:status, response.status)
        }
      end

And in the GRPC executor:

    def post_request(uri, request_body, metadata)
      request = Net::HTTP::Post.new(uri, request_headers(metadata))
      request.body = request_body
      request.basic_auth uri.user, uri.password if uri.userinfo

      begin
        Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
          http.request(request)
        end
      rescue StandardError => e
        raise ::GRPC::Unavailable, e.message
      end
    end

When I checked the backtrace, the error was coming from said ActionDispatch line above which gets the Addressable::URI from the Net::HTTP.start call above

webmock/lib/webmock/http_lib_adapters/net_http.rb

Lines 151 to 159 in f90fd50

	def start(&block)
	uri = Addressable::URI.parse(WebMock::NetHTTPUtility.get_uri(self))
	if WebMock.net_http_connect_on_start?(uri)
	super(&block)
	else
	start_without_connect(&block)
	end
	end

Is this an actual bug with webmock or were my tests set up wrong?

Check out the full trace below

Full trace

".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/actionpack-7.1.5.1/lib/action_dispatch/testing/integration.rb:235:in `process'"
"my_app/spec/support/initializers/user_agent.rb:7:in `process'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/actionpack-7.1.5.1/lib/action_dispatch/testing/integration.rb:22:in `post'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/actionpack-7.1.5.1/lib/action_dispatch/testing/integration.rb:379:in `post'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rails-controller-testing-1.0.5/lib/rails/controller/testing/integration.rb:16:in `block (2 levels) in <module:Integration>'"
"my_app/spec/support/helpers/grpc.rb:70:in `block in stub_grpc_request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/response.rb:155:in `evaluate'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/stub_registry.rb:78:in `evaluate_response_for_request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/stub_registry.rb:65:in `response_for_request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/http_lib_adapters/net_http.rb:74:in `request'"
"my_app/app/grpc/grpc_web/my_client_executor.rb:25:in `block in post_request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/http_lib_adapters/net_http.rb:114:in `start_without_connect'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/webmock-3.18.1/lib/webmock/http_lib_adapters/net_http.rb:141:in `start'"
".rbenv/versions/3.2.7/lib/ruby/3.2.0/net/http.rb:1029:in `start'"
"my_app/app/grpc/grpc_web/my_client_executor.rb:24:in `post_request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/bundler/gems/grpc-web-ruby-9049576e8587/lib/grpc_web/client/client_executor.rb:25:in `request'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/bundler/gems/grpc-web-ruby-9049576e8587/lib/grpc_web/client/client.rb:31:in `block in define_rpc_method'"
"my_app/spec/lib/middleware/grpc_auth_spec.rb:25:in `block (5 levels) in <top (required)>'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/matchers/built_in/raise_error.rb:59:in `matches?'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/expectations/handler.rb:51:in `block in handle_matcher'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/expectations/handler.rb:27:in `with_matcher'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/expectations/handler.rb:48:in `handle_matcher'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/expectations/expectation_target.rb:65:in `to'"
".rbenv/versions/3.2.7/lib/ruby/gems/3.2.0/gems/rspec-expectations-3.13.0/lib/rspec/expectations/expectation_target.rb:139:in `to'"
"my_app/spec/lib/middleware/grpc_auth_spec.rb:25:in `block (4 levels) in <top (required)>'"

[fffx]

It seems Rails expects a url or path as a string, so we can convert it to string:

 post request.uri.to_s, params: request.body, headers: request.headers