lib/protocol/http2/window_update_frame.rb in protocol-http2-0.7.0 vs lib/protocol/http2/window_update_frame.rb in protocol-http2-0.7.1

@@ -95,10 +95,18 @@
 			def pack(window_size_increment)
 				super [window_size_increment].pack(FORMAT)
 			end
 			
 			def unpack
-				super.unpack(FORMAT).first
+				super.unpack1(FORMAT)
+			end
+			
+			def read_payload(stream)
+				super
+				
+				if @length != 4
+					raise FrameSizeError, "Invalid frame length: #{@length} != 4!"
+				end
 			end
 			
 			def apply(connection)
 				connection.receive_window_update(self)
 			end