Fix test.

Author: ioquatix

test/protocol/http1/hijack.rb

@@ -12,7 +12,6 @@
 
 	with '#hijack' do
 		let(:response_version) {Protocol::HTTP1::Connection::HTTP10}
-		let(:response_headers) {Hash.new('upgrade' => 'websocket')}
 		let(:body) {Protocol::HTTP::Body::Buffered.new}
 		let(:text) {"Hello World!"}
 
@@ -34,7 +33,7 @@
 			expect(body).to receive(:each).and_return(nil)
 
 			expect(server).to receive(:write_body_and_close)
-			server.write_response(response_version, 101, response_headers)
+			server.write_response(response_version, 101, {'upgrade' => 'websocket'})
 			server.write_body(response_version, body)
 
 			server_stream = server.hijack!
@@ -43,7 +42,9 @@
 
 			expect(version).to be == response_version
 			expect(status).to be == 101
-			expect(headers).to be == response_headers
+			expect(headers).to have_keys(
+				'upgrade' => be == ['websocket'],
+			)
 			expect(body).to be_nil # due to 101 status
 
 			client_stream = client.hijack!