Add PingMessage along side TextMessage and BinaryMessage.

Author: ioquatix

lib/protocol/websocket/message.rb

@@ -72,5 +72,12 @@ def send(connection, **options)
 				connection.send_binary(@buffer, **options)
 			end
 		end
+		
+		# Represents a ping message that can be sent over a WebSocket connection.
+		class PingMessage < Message
+			def send(connection)
+				connection.send_ping(@buffer)
+			end
+		end
 	end
 end

test/protocol/websocket/connection.rb

@@ -336,6 +336,7 @@
 			connection.write("Hello World!".b)
 
 			frame = client.read_frame
+			expect(frame).to be_a(Protocol::WebSocket::BinaryFrame)
 			expect(frame.unpack).to be == "Hello World!".b
 		end
 
@@ -344,6 +345,16 @@
 			connection.write(message)
 
 			frame = client.read_frame
+			expect(frame).to be_a(Protocol::WebSocket::TextFrame)
+			expect(frame.unpack).to be == "Hello World!"
+		end
+		
+		it "can send ping mmessages" do
+			message = Protocol::WebSocket::PingMessage.new("Hello World!")
+			connection.write(message)
+			
+			frame = client.read_frame
+			expect(frame).to be_a(Protocol::WebSocket::PingFrame)
 			expect(frame.unpack).to be == "Hello World!"
 		end
 	end