Correct Header::Cookie#to_s.

Author: ioquatix

lib/protocol/http/header/cookie.rb

@@ -24,6 +24,11 @@ def to_h
 					cookies.map{|cookie| [cookie.name, cookie]}.to_h
 				end
 
+				# Serializes the `cookie` header by joining individual cookie strings with semicolons.
+				def to_s
+					join(";")
+				end
+				
 				# Whether this header is acceptable in HTTP trailers.
 				# Cookie headers should not appear in trailers as they contain state information needed early in processing.
 				# @returns [Boolean] `false`, as cookie headers are needed during initial request processing.

test/protocol/http/header/cookie.rb

@@ -32,11 +32,6 @@
 				directives: be == {"path" => "/", "secure" => true},
 			)
 		end
-		
-		it "has string representation" do
-			session = cookies["session"]
-			expect(session.to_s).to be == "session=123;path=/;secure"
-		end
 	end
 
 	with "session=abc123; secure" do
@@ -50,10 +45,19 @@
 			)
 			expect(session.directives).to have_keys("secure")
 		end
+	end
+	
+	with "multiple cookies" do
+		let(:header) do
+			cookie = subject.new
+			cookie << "session=abc123"
+			cookie << "user_id=42"
+			cookie << "token=xyz789"
+			cookie
+		end
 
-		it "has string representation" do
-			session = cookies["session"]
-			expect(session.to_s).to be == "session=abc123;secure"
+		it "joins cookies with semicolons without spaces" do
+			expect(header.to_s).to be == "session=abc123;user_id=42;token=xyz789"
 		end
 	end
 end