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package wsutil
import (
"bytes"
"runtime"
"testing"
"github.com/gobwas/ws"
)
func TestControlHandler(t *testing.T) {
for _, test := range []struct {
name string
state ws.State
in ws.Frame
out ws.Frame
noOut bool
err error
}{
{
name: "ping",
in: ws.NewPingFrame(nil),
out: ws.NewPongFrame(nil),
},
{
name: "ping",
in: ws.NewPingFrame([]byte("catch the ball")),
out: ws.NewPongFrame([]byte("catch the ball")),
},
{
name: "ping",
state: ws.StateServerSide,
in: ws.MaskFrame(ws.NewPingFrame([]byte("catch the ball"))),
out: ws.NewPongFrame([]byte("catch the ball")),
},
{
name: "ping",
in: ws.NewPingFrame(bytes.Repeat([]byte{0xfe}, 125)),
out: ws.NewPongFrame(bytes.Repeat([]byte{0xfe}, 125)),
},
{
name: "pong",
in: ws.NewPongFrame(nil),
noOut: true,
},
{
name: "pong",
in: ws.NewPongFrame([]byte("caught")),
noOut: true,
},
{
name: "close",
in: ws.NewCloseFrame(nil),
out: ws.NewCloseFrame(nil),
err: ClosedError{
Code: ws.StatusNoStatusRcvd,
},
},
{
name: "close",
in: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "goodbye!",
)),
out: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "",
)),
err: ClosedError{
Code: ws.StatusGoingAway,
Reason: "goodbye!",
},
},
{
name: "close",
in: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "bye",
)),
out: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "",
)),
err: ClosedError{
Code: ws.StatusGoingAway,
Reason: "bye",
},
},
{
name: "close",
state: ws.StateServerSide,
in: ws.MaskFrame(ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "goodbye!",
))),
out: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusGoingAway, "",
)),
err: ClosedError{
Code: ws.StatusGoingAway,
Reason: "goodbye!",
},
},
{
name: "close",
in: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusNormalClosure, string([]byte{0, 200}),
)),
out: ws.NewCloseFrame(ws.NewCloseFrameBody(
ws.StatusProtocolError, ws.ErrProtocolInvalidUTF8.Error(),
)),
err: ws.ErrProtocolInvalidUTF8,
},
} {
t.Run(test.name, func(t *testing.T) {
defer func() {
if err := recover(); err != nil {
stack := make([]byte, 4096)
n := runtime.Stack(stack, true)
t.Fatalf(
"panic recovered: %v\n%s",
err, stack[:n],
)
}
}()
var (
out = bytes.NewBuffer(nil)
in = bytes.NewReader(test.in.Payload)
)
c := ControlHandler{
Src: in,
Dst: out,
State: test.state,
}
err := c.Handle(test.in.Header)
if err != test.err {
t.Errorf("unexpected error: %v; want %v", err, test.err)
}
if in.Len() != 0 {
t.Errorf("handler did not drained the input")
}
act := out.Bytes()
switch {
case len(act) == 0 && test.noOut:
return
case len(act) == 0 && !test.noOut:
t.Errorf("unexpected silence")
case len(act) > 0 && test.noOut:
t.Errorf("unexpected sent frame")
default:
exp := ws.MustCompileFrame(test.out)
if !bytes.Equal(act, exp) {
fa := ws.MustReadFrame(bytes.NewReader(act))
fe := ws.MustReadFrame(bytes.NewReader(exp))
t.Errorf(
"unexpected sent frame:\n\tact: %+v\n\texp: %+v\nbytes:\n\tact: %v\n\texp: %v",
fa, fe, act, exp,
)
}
}
})
}
}
|
