Add better specs for HTTP_UPGRADE and rack.protocol.

test/protocol/rack/request.rb

@@ -19,16 +19,14 @@
 
 	let(:env) {adapter.make_environment(request)}
 
+	let(:wrapped_request) {subject.new(env)}
+
 	with 'incoming rack env' do
 		it "can restore request from original request" do
 			expect(subject[env]).to be == request
 		end
 
 		it "can regenerate request from generic env" do
-			env.delete(Protocol::Rack::PROTOCOL_HTTP_REQUEST)
-
-			wrapped_request = subject[env]
-
 			expect(wrapped_request.scheme).to be == request.scheme
 			expect(wrapped_request.authority).to be == request.authority
 			expect(wrapped_request.method).to be == request.method
@@ -44,10 +42,18 @@
 		let(:headers) {Protocol::HTTP::Headers[{'upgrade' => 'websocket'}]}
 
 		it "can extract upgrade request" do
-			env.delete(Protocol::Rack::PROTOCOL_HTTP_REQUEST)
-
-			wrapped_request = subject[env]
-
+			expect(wrapped_request).to have_attributes(
+				protocol: be == ["websocket"]
+			)
+		end
+	end
+
+	with 'incoming rack env which includes rack.protocol' do
+		let(:request) {Protocol::HTTP::Request.new(
+			'https', 'example.com', 'GET', '/', 'http/1.1', headers, body, ["websocket"]
+		)}
+
+		it "can extract upgrade request" do
 			expect(wrapped_request).to have_attributes(
 				protocol: be == ["websocket"]
 			)