// bother trying to roundtrip it.
		if len(files) == 0 {
			return
		}

		w := NewWriter(io.Discard)
		for _, f := range files {
			ww, err := w.CreateHeader(f.header)
			if err != nil {
				t.Fatalf("unable to write previously parsed header: %s", err)
			}
			if _, err := ww.Write(f.content); err != nil {
				t.Fatalf("unable to write previously parsed content: %s", err)
			}
		}

		if err := w.Close(); err != nil {

		frame = ws.NewFrame(op, fin, p)
	}

	return ww.writeFrame(w, frame)
}

// writeFrame writes frame binary representation into w.
func (ww *wsWriter) writeFrame(w io.Writer, f ws.Frame) error {
	const (
		bit0  = 0x80
		len7  = int64(125)
		len16 = int64(^(uint16(0)))
		len64 = int64(^(uint64(0)) >> 1)
	)

	bts := ww.tmp[:]
	if f.Header.Fin {
		bts[0] |= bit0
	}

{^ñOjJˆúïÄiziyjeì {: _fïx`GLï}¡oñR^KkòGH GbPû^U`[eòBq4¨BPee}q„mÐ{JãB ²caòn}QòATIˆæ ²C 7ÖKrûTA¾reôgXKpÀ oXÜyQTGÖ¦ku ge՚ν –´ u²ps¸òox vqK{SQ xt¸ßX{rijSlM’ñZq ?kx› ¾Sm~HqJ }P K°Vûwo®²@jq<Zf{l_åV qSŠDmQccêïø¾xå WWXÐYFV pa~sô\qôˆORAÖk~K_¦xjKQÕG¾êYd~ñ ’Ww\ºÖoeù 5 "loØt½_{lId¯h}I "Ôî¯%† l|~UÖ' r‹V\x»‚ ν w g E‘¨ v{KmLe¼-ñJG¢5rIÖp]}E)8pVPR –™1Selšûw•fyoI™eyj]ñ±ninMV³yJ}J×Fim`K³mk`yoÌÜ'¯EÖeWCÖG½CYìSbc2pVWl¥ì­ª1 ÕE†rkkàˆIqÜ"² ),›W¾)IHBeΧºdÜVJQ„¹¹}sòœqu+hsC_¹÷evo{·\ûv{VŸpeNïRE`}G1egZeñíeyà&Ü ~Ÿò½„±¿5q²|_ûpû_½mñd„+";ª}ûxR¼...