Fix ChannelMax type mismatch

uri.go

@@ -46,7 +46,7 @@ type URI struct {
 	AuthMechanism     []string
 	Heartbeat         int
 	ConnectionTimeout int
-	ChannelMax        int
+	ChannelMax        uint16
 }
 
 // ParseURI attempts to parse the given AMQP URI according to the spec.
@@ -162,11 +162,11 @@ func ParseURI(uri string) (URI, error) {
 	}
 
 	if params.Has("channel_max") {
-		value, err := strconv.Atoi(params.Get("channel_max"))
+		value, err := strconv.ParseUint(params.Get("channel_max"), 10, 16)
 		if err != nil {
 			return builder, fmt.Errorf("connection_timeout is not an integer: %v", err)
 		}
-		builder.ChannelMax = value
+		builder.ChannelMax = uint16(value)
 	}
 
 	return builder, nil