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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
//go:build !js
// +build !js
package dtls
import (
"context"
"crypto/tls"
"errors"
"net"
"testing"
"time"
"github.com/pion/dtls/v3/pkg/crypto/selfsign"
dtlsnet "github.com/pion/dtls/v3/pkg/net"
"github.com/pion/transport/v3/dpipe"
"github.com/pion/transport/v3/test"
"github.com/stretchr/testify/assert"
)
func TestContextConfig(t *testing.T) { //nolint:cyclop
// Limit runtime in case of deadlocks
lim := test.TimeOut(time.Second * 20)
defer lim.Stop()
report := test.CheckRoutines(t)
defer report()
addrListen, err := net.ResolveUDPAddr("udp", "localhost:0")
assert.NoError(t, err)
// Dummy listener
listen, err := net.ListenUDP("udp", addrListen)
assert.NoError(t, err)
defer func() {
_ = listen.Close()
}()
addr, ok := listen.LocalAddr().(*net.UDPAddr)
assert.True(t, ok)
cert, err := selfsign.GenerateSelfSigned()
assert.NoError(t, err)
config := &Config{
Certificates: []tls.Certificate{cert},
}
dials := map[string]struct {
f func() (func() (net.Conn, error), func())
order []byte
}{
"Dial": {
f: func() (func() (net.Conn, error), func()) {
ctx, cancel := context.WithTimeout(context.Background(), 40*time.Millisecond)
return func() (net.Conn, error) {
conn, err := Dial("udp", addr, config)
if err != nil {
return nil, err
}
return conn, conn.HandshakeContext(ctx)
}, func() {
cancel()
}
},
order: []byte{0, 1, 2},
},
"Client": {
f: func() (func() (net.Conn, error), func()) {
ca, _ := dpipe.Pipe()
ctx, cancel := context.WithTimeout(context.Background(), 40*time.Millisecond)
return func() (net.Conn, error) {
conn, err := Client(dtlsnet.PacketConnFromConn(ca), ca.RemoteAddr(), config)
if err != nil {
return nil, err
}
return conn, conn.HandshakeContext(ctx)
}, func() {
_ = ca.Close()
cancel()
}
},
order: []byte{0, 1, 2},
},
"Server": {
f: func() (func() (net.Conn, error), func()) {
ca, _ := dpipe.Pipe()
ctx, cancel := context.WithTimeout(context.Background(), 40*time.Millisecond)
return func() (net.Conn, error) {
conn, err := Server(dtlsnet.PacketConnFromConn(ca), ca.RemoteAddr(), config)
if err != nil {
return nil, err
}
return conn, conn.HandshakeContext(ctx)
}, func() {
_ = ca.Close()
cancel()
}
},
order: []byte{0, 1, 2},
},
}
for name, dial := range dials {
dial := dial
t.Run(name, func(t *testing.T) {
done := make(chan struct{})
go func() {
d, cancel := dial.f()
conn, err := d()
defer cancel()
var netError net.Error
if !errors.As(err, &netError) || !netError.Temporary() { //nolint:staticcheck
assert.Fail(t, "Dial failed with unexpected error", "err: %v", err)
close(done)
return
}
done <- struct{}{}
if err == nil {
_ = conn.Close()
}
}()
var order []byte
early := time.After(20 * time.Millisecond)
late := time.After(60 * time.Millisecond)
func() {
for len(order) < 3 {
select {
case <-early:
order = append(order, 0)
case _, ok := <-done:
if !ok {
return
}
order = append(order, 1)
case <-late:
order = append(order, 2)
}
}
}()
assert.Equal(t, dial.order, order, "Invalid cancel timing")
})
}
}
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