hysteria/core/client/udp_test.go

122 lines
2.9 KiB
Go

package client
import (
"errors"
io2 "io"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
"go.uber.org/goleak"
coreErrs "github.com/apernet/hysteria/core/v2/errors"
"github.com/apernet/hysteria/core/v2/internal/protocol"
)
func TestUDPSessionManager(t *testing.T) {
io := newMockUDPIO(t)
receiveCh := make(chan *protocol.UDPMessage, 4)
io.EXPECT().ReceiveMessage().RunAndReturn(func() (*protocol.UDPMessage, error) {
m := <-receiveCh
if m == nil {
return nil, errors.New("closed")
}
return m, nil
})
sm := newUDPSessionManager(io)
// Test UDP session IO
udpConn1, err := sm.NewUDP()
assert.NoError(t, err)
udpConn2, err := sm.NewUDP()
assert.NoError(t, err)
msg1 := &protocol.UDPMessage{
SessionID: 1,
PacketID: 0,
FragID: 0,
FragCount: 1,
Addr: "random.site.com:9000",
Data: []byte("hello friend"),
}
io.EXPECT().SendMessage(mock.Anything, msg1).Return(nil).Once()
err = udpConn1.Send(msg1.Data, msg1.Addr)
assert.NoError(t, err)
msg2 := &protocol.UDPMessage{
SessionID: 2,
PacketID: 0,
FragID: 0,
FragCount: 1,
Addr: "another.site.org:8000",
Data: []byte("mr robot"),
}
io.EXPECT().SendMessage(mock.Anything, msg2).Return(nil).Once()
err = udpConn2.Send(msg2.Data, msg2.Addr)
assert.NoError(t, err)
respMsg1 := &protocol.UDPMessage{
SessionID: 1,
PacketID: 0,
FragID: 0,
FragCount: 1,
Addr: msg1.Addr,
Data: []byte("goodbye captain price"),
}
receiveCh <- respMsg1
data, addr, err := udpConn1.Receive()
assert.NoError(t, err)
assert.Equal(t, data, respMsg1.Data)
assert.Equal(t, addr, respMsg1.Addr)
respMsg2 := &protocol.UDPMessage{
SessionID: 2,
PacketID: 0,
FragID: 0,
FragCount: 1,
Addr: msg2.Addr,
Data: []byte("white rose"),
}
receiveCh <- respMsg2
data, addr, err = udpConn2.Receive()
assert.NoError(t, err)
assert.Equal(t, data, respMsg2.Data)
assert.Equal(t, addr, respMsg2.Addr)
respMsg3 := &protocol.UDPMessage{
SessionID: 55, // Bogus session ID that doesn't exist
PacketID: 0,
FragID: 0,
FragCount: 1,
Addr: "burgerking.com:27017",
Data: []byte("impossible whopper"),
}
receiveCh <- respMsg3
// No test for this, just make sure it doesn't panic
// Test close UDP connection unblocks Receive()
errChan := make(chan error, 1)
go func() {
_, _, err := udpConn1.Receive()
errChan <- err
}()
assert.NoError(t, udpConn1.Close())
assert.Equal(t, <-errChan, io2.EOF)
// Test close IO unblocks Receive() and blocks new UDP creation
errChan = make(chan error, 1)
go func() {
_, _, err := udpConn2.Receive()
errChan <- err
}()
close(receiveCh)
assert.Equal(t, <-errChan, io2.EOF)
_, err = sm.NewUDP()
assert.Equal(t, err, coreErrs.ClosedError{})
// Leak checks
time.Sleep(1 * time.Second)
assert.Zero(t, sm.Count(), "session count should be 0")
goleak.VerifyNone(t)
}