feat(wip): test reworks (need to add back traffic logger tests)

core/client/client.go

@@ -109,12 +109,12 @@ func (c *clientImpl) connect() error {
 			_ = conn.CloseWithError(closeErrCodeProtocolError, "")
 		}
 		_ = pktConn.Close()
-		return &coreErrs.ConnectError{Err: err}
+		return coreErrs.ConnectError{Err: err}
 	}
 	if resp.StatusCode != protocol.StatusAuthOK {
 		_ = conn.CloseWithError(closeErrCodeProtocolError, "")
 		_ = pktConn.Close()
-		return &coreErrs.AuthError{StatusCode: resp.StatusCode}
+		return coreErrs.AuthError{StatusCode: resp.StatusCode}
 	}
 	// Auth OK
 	udpEnabled, serverRx := protocol.AuthResponseDataFromHeader(resp.Header)

core/internal/integration_tests/close_test.go

@@ -92,8 +92,8 @@ func TestClientServerTCPClose(t *testing.T) {
 	_ = conn.Close()
 }
 
-// TestServerUDPIdleTimeout tests whether the server's UDP idle timeout works correctly.
+// TestClientServerUDPIdleTimeout tests whether the server's UDP idle timeout works correctly.
-func TestServerUDPIdleTimeout(t *testing.T) {
+func TestClientServerUDPIdleTimeout(t *testing.T) {
 	// Create server
 	udpConn, udpAddr, err := serverConn()
 	assert.NoError(t, err)

core/internal/integration_tests/masq_test.go

@@ -22,7 +22,7 @@ import (
 
 // TestServerMasquerade is a test to ensure that the server behaves as a normal
 // HTTP/3 server when dealing with an unauthenticated client. This is mainly to
-// confirm that the server does not expose itself to active probers.
+// confirm that the server does not expose itself to active probing.
 func TestServerMasquerade(t *testing.T) {
 	// Create server
 	udpConn, udpAddr, err := serverConn()

core/internal/integration_tests/smoke_test.go

@@ -1,43 +1,30 @@
 package integration_tests
 
 import (
-	"errors"
 	"io"
 	"net"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+
 	"github.com/apernet/hysteria/core/client"
 	coreErrs "github.com/apernet/hysteria/core/errors"
+	"github.com/apernet/hysteria/core/internal/integration_tests/mocks"
 	"github.com/apernet/hysteria/core/server"
 )
 
 // Smoke tests that act as a sanity check for client & server to ensure they can talk to each other correctly.
 
-// TestClientNoServer tests how the client handles a server that doesn't exist.
+// TestClientNoServer tests how the client handles a server address it cannot connect to.
-// The client should still be able to be created, but TCP & UDP requests should fail.
+// NewClient should return a ConnectError.
 func TestClientNoServer(t *testing.T) {
-	// Create client
 	c, err := client.NewClient(&client.Config{
-		ServerAddr: &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514},
+		ServerAddr: &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 55666},
 	})
-	if err != nil {
+	assert.Nil(t, c)
-		t.Fatal("error creating client:", err)
+	_, ok := err.(coreErrs.ConnectError)
-	}
+	assert.True(t, ok)
-	defer c.Close()
-
-	var cErr *coreErrs.ConnectError
-
-	// Try TCP
-	_, err = c.TCP("google.com:443")
-	if !errors.As(err, &cErr) {
-		t.Fatal("expected connect error from TCP")
-	}
-
-	// Try UDP
-	_, err = c.UDP()
-	if !errors.As(err, &cErr) {
-		t.Fatal("expected connect error from DialUDP")
-	}
 }
 
 // TestClientServerBadAuth tests two things:
@@ -45,79 +32,82 @@ func TestClientNoServer(t *testing.T) {
 // - How the client handles failed authentication.
 func TestClientServerBadAuth(t *testing.T) {
 	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
+	udpConn, udpAddr, err := serverConn()
-	udpConn, err := net.ListenUDP("udp", udpAddr)
+	assert.NoError(t, err)
-	if err != nil {
+	auth := mocks.NewMockAuthenticator(t)
-		t.Fatal("error creating server:", err)
+	auth.EXPECT().Authenticate(mock.Anything, "badpassword", uint64(0)).Return(false, "").Once()
-	}
 	s, err := server.NewServer(&server.Config{
 		TLSConfig:     serverTLSConfig(),
 		Conn:          udpConn,
-		Authenticator: &pwAuthenticator{
+		Authenticator: auth,
-			Password: "correct password",
-			ID:       "nobody",
-		},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating server:", err)
-	}
 	defer s.Close()
 	go s.Serve()
 
 	// Create client
 	c, err := client.NewClient(&client.Config{
 		ServerAddr: udpAddr,
-		Auth:       "wrong password",
+		Auth:       "badpassword",
 		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
 	})
-	if err != nil {
+	assert.Nil(t, c)
-		t.Fatal("error creating client:", err)
+	_, ok := err.(coreErrs.AuthError)
+	assert.True(t, ok)
 }
+
+// TestClientServerUDPDisabled tests how the client handles a server that does not support UDP.
+// UDP should return a DialError.
+func TestClientServerUDPDisabled(t *testing.T) {
+	// Create server
+	udpConn, udpAddr, err := serverConn()
+	assert.NoError(t, err)
+	auth := mocks.NewMockAuthenticator(t)
+	auth.EXPECT().Authenticate(mock.Anything, mock.Anything, mock.Anything).Return(true, "nobody")
+	s, err := server.NewServer(&server.Config{
+		TLSConfig:     serverTLSConfig(),
+		Conn:          udpConn,
+		DisableUDP:    true,
+		Authenticator: auth,
+	})
+	assert.NoError(t, err)
+	defer s.Close()
+	go s.Serve()
+
+	// Create client
+	c, err := client.NewClient(&client.Config{
+		ServerAddr: udpAddr,
+		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
+	})
+	assert.NoError(t, err)
 	defer c.Close()
 
-	var aErr *coreErrs.AuthError
+	conn, err := c.UDP()
-
+	assert.Nil(t, conn)
-	// Try TCP
+	_, ok := err.(coreErrs.DialError)
-	_, err = c.TCP("google.com:443")
+	assert.True(t, ok)
-	if !errors.As(err, &aErr) {
-		t.Fatal("expected auth error from TCP")
-	}
-
-	// Try UDP
-	_, err = c.UDP()
-	if !errors.As(err, &aErr) {
-		t.Fatal("expected auth error from DialUDP")
-	}
 }
 
 // TestClientServerTCPEcho tests TCP forwarding using a TCP echo server.
 func TestClientServerTCPEcho(t *testing.T) {
 	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
+	udpConn, udpAddr, err := serverConn()
-	udpConn, err := net.ListenUDP("udp", udpAddr)
+	assert.NoError(t, err)
-	if err != nil {
+	auth := mocks.NewMockAuthenticator(t)
-		t.Fatal("error creating server:", err)
+	auth.EXPECT().Authenticate(mock.Anything, mock.Anything, mock.Anything).Return(true, "nobody")
-	}
 	s, err := server.NewServer(&server.Config{
 		TLSConfig:     serverTLSConfig(),
 		Conn:          udpConn,
-		Authenticator: &pwAuthenticator{
+		Authenticator: auth,
-			Password: "password",
-			ID:       "nobody",
-		},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating server:", err)
-	}
 	defer s.Close()
 	go s.Serve()
 
 	// Create TCP echo server
-	echoTCPAddr := &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14515}
+	echoAddr := "127.0.0.1:22333"
-	echoListener, err := net.ListenTCP("tcp", echoTCPAddr)
+	echoListener, err := net.Listen("tcp", echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating TCP echo server:", err)
-	}
 	echoServer := &tcpEchoServer{Listener: echoListener}
 	defer echoServer.Close()
 	go echoServer.Serve()
@@ -125,65 +115,46 @@ func TestClientServerTCPEcho(t *testing.T) {
 	// Create client
 	c, err := client.NewClient(&client.Config{
 		ServerAddr: udpAddr,
-		Auth:       "password",
 		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating client:", err)
-	}
 	defer c.Close()
 
 	// Dial TCP
-	conn, err := c.TCP(echoTCPAddr.String())
+	conn, err := c.TCP(echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error dialing TCP:", err)
-	}
 	defer conn.Close()
 
 	// Send and receive data
 	sData := []byte("hello world")
 	_, err = conn.Write(sData)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error writing to TCP:", err)
-	}
 	rData := make([]byte, len(sData))
 	_, err = io.ReadFull(conn, rData)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error reading from TCP:", err)
+	assert.Equal(t, sData, rData)
-	}
-	if string(rData) != string(sData) {
-		t.Fatalf("expected %q, got %q", sData, rData)
-	}
 }
 
 // TestClientServerUDPEcho tests UDP forwarding using a UDP echo server.
 func TestClientServerUDPEcho(t *testing.T) {
 	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
+	udpConn, udpAddr, err := serverConn()
-	udpConn, err := net.ListenUDP("udp", udpAddr)
+	assert.NoError(t, err)
-	if err != nil {
+	auth := mocks.NewMockAuthenticator(t)
-		t.Fatal("error creating server:", err)
+	auth.EXPECT().Authenticate(mock.Anything, mock.Anything, mock.Anything).Return(true, "nobody")
-	}
 	s, err := server.NewServer(&server.Config{
 		TLSConfig:     serverTLSConfig(),
 		Conn:          udpConn,
-		Authenticator: &pwAuthenticator{
+		Authenticator: auth,
-			Password: "password",
-			ID:       "nobody",
-		},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating server:", err)
-	}
 	defer s.Close()
 	go s.Serve()
 
 	// Create UDP echo server
-	echoUDPAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 55555}
+	echoAddr := "127.0.0.1:22333"
-	echoConn, err := net.ListenUDP("udp", echoUDPAddr)
+	echoConn, err := net.ListenPacket("udp", echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating UDP echo server:", err)
-	}
 	echoServer := &udpEchoServer{Conn: echoConn}
 	defer echoServer.Close()
 	go echoServer.Serve()
@@ -191,35 +162,22 @@ func TestClientServerUDPEcho(t *testing.T) {
 	// Create client
 	c, err := client.NewClient(&client.Config{
 		ServerAddr: udpAddr,
-		Auth:       "password",
 		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating client:", err)
-	}
 	defer c.Close()
 
 	// Listen UDP
 	conn, err := c.UDP()
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error listening UDP:", err)
-	}
 	defer conn.Close()
 
 	// Send and receive data
 	sData := []byte("hello world")
-	err = conn.Send(sData, echoUDPAddr.String())
+	err = conn.Send(sData, echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error sending UDP:", err)
-	}
 	rData, rAddr, err := conn.Receive()
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error receiving UDP:", err)
+	assert.Equal(t, sData, rData)
-	}
+	assert.Equal(t, echoAddr, rAddr)
-	if string(rData) != string(sData) {
-		t.Fatalf("expected %q, got %q", sData, rData)
-	}
-	if rAddr != echoUDPAddr.String() {
-		t.Fatalf("expected %q, got %q", echoUDPAddr.String(), rAddr)
-	}
 }

core/internal/integration_tests/stress_test.go

@@ -9,9 +9,12 @@ import (
 	"sync"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
 	"golang.org/x/time/rate"
 
 	"github.com/apernet/hysteria/core/client"
+	"github.com/apernet/hysteria/core/internal/integration_tests/mocks"
 	"github.com/apernet/hysteria/core/server"
 )
 
@@ -26,9 +29,7 @@ func (s *tcpStressor) Run(t *testing.T) {
 	// Make some random data
 	sData := make([]byte, s.Size)
 	_, err := rand.Read(sData)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error generating random data:", err)
-	}
 
 	// Run iterations
 	for i := 0; i < s.Iterations; i++ {
@@ -57,9 +58,7 @@ func (s *tcpStressor) Run(t *testing.T) {
 		}
 		wg.Wait()
 
-		if len(errChan) > 0 {
+		assert.Empty(t, errChan)
-			t.Fatal("error reading from TCP:", <-errChan)
-		}
 	}
 }
 
@@ -76,9 +75,7 @@ func (s *udpStressor) Run(t *testing.T) {
 	// Make some random data
 	sData := make([]byte, s.Size)
 	_, err := rand.Read(sData)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error generating random data:", err)
-	}
 
 	// Due to UDP's unreliability, we need to limit the rate of sending
 	// to reduce packet loss. This is hardcoded to 1 MiB/s for now.
@@ -123,39 +120,29 @@ func (s *udpStressor) Run(t *testing.T) {
 		}
 		wg.Wait()
 
-		if len(errChan) > 0 {
+		assert.Empty(t, errChan)
-			t.Fatal("error reading from UDP:", <-errChan)
-		}
 	}
 }
 
 func TestClientServerTCPStress(t *testing.T) {
 	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
+	udpConn, udpAddr, err := serverConn()
-	udpConn, err := net.ListenUDP("udp", udpAddr)
+	assert.NoError(t, err)
-	if err != nil {
+	auth := mocks.NewMockAuthenticator(t)
-		t.Fatal("error creating server:", err)
+	auth.EXPECT().Authenticate(mock.Anything, mock.Anything, mock.Anything).Return(true, "nobody")
-	}
 	s, err := server.NewServer(&server.Config{
 		TLSConfig:     serverTLSConfig(),
 		Conn:          udpConn,
-		Authenticator: &pwAuthenticator{
+		Authenticator: auth,
-			Password: "password",
-			ID:       "nobody",
-		},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating server:", err)
-	}
 	defer s.Close()
 	go s.Serve()
 
 	// Create TCP echo server
-	echoTCPAddr := &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14515}
+	echoAddr := "127.0.0.1:22333"
-	echoListener, err := net.ListenTCP("tcp", echoTCPAddr)
+	echoListener, err := net.Listen("tcp", echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating TCP echo server:", err)
-	}
 	echoServer := &tcpEchoServer{Listener: echoListener}
 	defer echoServer.Close()
 	go echoServer.Serve()
@@ -163,16 +150,13 @@ func TestClientServerTCPStress(t *testing.T) {
 	// Create client
 	c, err := client.NewClient(&client.Config{
 		ServerAddr: udpAddr,
-		Auth:       "password",
 		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating client:", err)
-	}
 	defer c.Close()
 
 	dialFunc := func() (net.Conn, error) {
-		return c.TCP(echoTCPAddr.String())
+		return c.TCP(echoAddr)
 	}
 
 	t.Run("Single 500m", (&tcpStressor{DialFunc: dialFunc, Size: 524288000, Parallel: 1, Iterations: 1}).Run)
@@ -186,49 +170,38 @@ func TestClientServerTCPStress(t *testing.T) {
 
 func TestClientServerUDPStress(t *testing.T) {
 	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
+	udpConn, udpAddr, err := serverConn()
-	udpConn, err := net.ListenUDP("udp", udpAddr)
+	assert.NoError(t, err)
-	if err != nil {
+	auth := mocks.NewMockAuthenticator(t)
-		t.Fatal("error creating server:", err)
+	auth.EXPECT().Authenticate(mock.Anything, mock.Anything, mock.Anything).Return(true, "nobody")
-	}
 	s, err := server.NewServer(&server.Config{
 		TLSConfig:     serverTLSConfig(),
 		Conn:          udpConn,
-		Authenticator: &pwAuthenticator{
+		Authenticator: auth,
-			Password: "password",
-			ID:       "nobody",
-		},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating server:", err)
-	}
 	defer s.Close()
 	go s.Serve()
 
 	// Create UDP echo server
-	echoUDPAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14515}
+	echoAddr := "127.0.0.1:22333"
-	echoListener, err := net.ListenUDP("udp", echoUDPAddr)
+	echoConn, err := net.ListenPacket("udp", echoAddr)
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating UDP echo server:", err)
+	echoServer := &udpEchoServer{Conn: echoConn}
-	}
-	echoServer := &udpEchoServer{Conn: echoListener}
 	defer echoServer.Close()
 	go echoServer.Serve()
 
 	// Create client
 	c, err := client.NewClient(&client.Config{
 		ServerAddr: udpAddr,
-		Auth:       "password",
 		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
 	})
-	if err != nil {
+	assert.NoError(t, err)
-		t.Fatal("error creating client:", err)
-	}
 	defer c.Close()
 
 	t.Run("Single 1000x100b", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       100,
 		Count:      1000,
 		Parallel:   1,
@@ -236,7 +209,7 @@ func TestClientServerUDPStress(t *testing.T) {
 	}).Run)
 	t.Run("Single 1000x3k", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       3000,
 		Count:      1000,
 		Parallel:   1,
@@ -245,7 +218,7 @@ func TestClientServerUDPStress(t *testing.T) {
 
 	t.Run("5 Sequential 1000x100b", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       100,
 		Count:      1000,
 		Parallel:   1,
@@ -253,7 +226,7 @@ func TestClientServerUDPStress(t *testing.T) {
 	}).Run)
 	t.Run("5 Sequential 200x3k", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       3000,
 		Count:      200,
 		Parallel:   1,
@@ -262,7 +235,7 @@ func TestClientServerUDPStress(t *testing.T) {
 
 	t.Run("2 Sequential 5 Parallel 1000x100b", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       100,
 		Count:      1000,
 		Parallel:   5,
@@ -271,19 +244,10 @@ func TestClientServerUDPStress(t *testing.T) {
 
 	t.Run("2 Sequential 5 Parallel 200x3k", (&udpStressor{
 		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
+		ServerAddr: echoAddr,
 		Size:       3000,
 		Count:      200,
 		Parallel:   5,
 		Iterations: 2,
 	}).Run)
-
-	t.Run("10 Sequential 5 Parallel 200x3k", (&udpStressor{
-		ListenFunc: c.UDP,
-		ServerAddr: echoUDPAddr.String(),
-		Size:       3000,
-		Count:      200,
-		Parallel:   5,
-		Iterations: 10,
-	}).Run)
 }

core/internal/integration_tests/trafficlogger_test.go

@@ -1,173 +0,0 @@
-package integration_tests
-
-import (
-	"io"
-	"net"
-	"sync/atomic"
-	"testing"
-
-	"github.com/apernet/hysteria/core/client"
-	"github.com/apernet/hysteria/core/server"
-)
-
-type testTrafficLogger struct {
-	Tx, Rx uint64
-	Block  atomic.Bool
-}
-
-func (l *testTrafficLogger) Log(id string, tx, rx uint64) bool {
-	atomic.AddUint64(&l.Tx, tx)
-	atomic.AddUint64(&l.Rx, rx)
-	return !l.Block.Load()
-}
-
-func (l *testTrafficLogger) Get() (tx, rx uint64) {
-	return atomic.LoadUint64(&l.Tx), atomic.LoadUint64(&l.Rx)
-}
-
-func (l *testTrafficLogger) SetBlock(block bool) {
-	l.Block.Store(block)
-}
-
-func (l *testTrafficLogger) Reset() {
-	atomic.StoreUint64(&l.Tx, 0)
-	atomic.StoreUint64(&l.Rx, 0)
-}
-
-// TestServerTrafficLogger tests that the server's TrafficLogger interface is working correctly.
-// More specifically, it tests that the server is correctly logging traffic in both directions,
-// and that it is correctly disconnecting clients when the traffic logger returns false.
-func TestServerTrafficLogger(t *testing.T) {
-	tl := &testTrafficLogger{}
-
-	// Create server
-	udpAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14514}
-	udpConn, err := net.ListenUDP("udp", udpAddr)
-	if err != nil {
-		t.Fatal("error creating server:", err)
-	}
-	s, err := server.NewServer(&server.Config{
-		TLSConfig: serverTLSConfig(),
-		Conn:      udpConn,
-		Authenticator: &pwAuthenticator{
-			Password: "password",
-			ID:       "nobody",
-		},
-		TrafficLogger: tl,
-	})
-	if err != nil {
-		t.Fatal("error creating server:", err)
-	}
-	defer s.Close()
-	go s.Serve()
-
-	// Create TCP double echo server
-	// We use double echo to test that the traffic logger is correctly logging both directions.
-	echoTCPAddr := &net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 14515}
-	echoListener, err := net.ListenTCP("tcp", echoTCPAddr)
-	if err != nil {
-		t.Fatal("error creating TCP echo server:", err)
-	}
-	tEchoServer := &tcpDoubleEchoServer{Listener: echoListener}
-	defer tEchoServer.Close()
-	go tEchoServer.Serve()
-
-	// Create client
-	c, err := client.NewClient(&client.Config{
-		ServerAddr: udpAddr,
-		Auth:       "password",
-		TLSConfig:  client.TLSConfig{InsecureSkipVerify: true},
-	})
-	if err != nil {
-		t.Fatal("error creating client:", err)
-	}
-	defer c.Close()
-
-	// Dial TCP
-	tConn, err := c.TCP(echoTCPAddr.String())
-	if err != nil {
-		t.Fatal("error dialing TCP:", err)
-	}
-	defer tConn.Close()
-
-	// Send and receive TCP data
-	sData := []byte("1234")
-	_, err = tConn.Write(sData)
-	if err != nil {
-		t.Fatal("error writing to TCP:", err)
-	}
-	rData := make([]byte, len(sData)*2)
-	_, err = io.ReadFull(tConn, rData)
-	if err != nil {
-		t.Fatal("error reading from TCP:", err)
-	}
-	expected := string(sData) + string(sData)
-	if string(rData) != expected {
-		t.Fatalf("expected %q, got %q", expected, string(rData))
-	}
-
-	// Check traffic logger
-	tx, rx := tl.Get()
-	if tx != uint64(len(sData)) || rx != uint64(len(rData)) {
-		t.Fatalf("expected TrafficLogger Tx=%d, Rx=%d, got Tx=%d, Rx=%d", len(sData), len(rData), tx, rx)
-	}
-	tl.Reset()
-
-	// Create UDP double echo server
-	echoUDPAddr := &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 55555}
-	echoConn, err := net.ListenUDP("udp", echoUDPAddr)
-	if err != nil {
-		t.Fatal("error creating UDP echo server:", err)
-	}
-	uEchoServer := &udpDoubleEchoServer{Conn: echoConn}
-	defer uEchoServer.Close()
-	go uEchoServer.Serve()
-
-	// Listen UDP
-	uConn, err := c.UDP()
-	if err != nil {
-		t.Fatal("error listening UDP:", err)
-	}
-	defer uConn.Close()
-
-	// Send and receive UDP data
-	sData = []byte("gucci gang")
-	err = uConn.Send(sData, echoUDPAddr.String())
-	if err != nil {
-		t.Fatal("error sending UDP:", err)
-	}
-	for i := 0; i < 2; i++ {
-		rData, rAddr, err := uConn.Receive()
-		if err != nil {
-			t.Fatal("error receiving UDP:", err)
-		}
-		if string(rData) != string(sData) {
-			t.Fatalf("expected %q, got %q", string(sData), string(rData))
-		}
-		if rAddr != echoUDPAddr.String() {
-			t.Fatalf("expected %q, got %q", echoUDPAddr.String(), rAddr)
-		}
-	}
-
-	// Check traffic logger
-	tx, rx = tl.Get()
-	if tx != uint64(len(sData)) || rx != uint64(len(sData)*2) {
-		t.Fatalf("expected TrafficLogger Tx=%d, Rx=%d, got Tx=%d, Rx=%d", len(sData), len(sData)*2, tx, rx)
-	}
-
-	// Check the disconnect client functionality
-	tl.SetBlock(true)
-
-	// Send and receive TCP data again
-	sData = []byte("1234")
-	_, err = tConn.Write(sData)
-	if err != nil {
-		t.Fatal("error writing to TCP:", err)
-	}
-	// This should fail instantly without reading any data
-	// io.Copy should return nil as EOF is treated as a non-error though
-	n, err := io.Copy(io.Discard, tConn)
-	if n != 0 || err != nil {
-		t.Fatal("expected 0 bytes read and nil error, got", n, err)
-	}
-}

core/internal/integration_tests/utils_test.go

@@ -1,7 +1,6 @@
 package integration_tests
 
 import (
-	"bytes"
 	"crypto/tls"
 	"io"
 	"net"
@@ -35,18 +34,6 @@ func serverConn() (net.PacketConn, net.Addr, error) {
 	return udpConn, udpAddr, nil
 }
 
-type pwAuthenticator struct {
-	Password string
-	ID       string
-}
-
-func (a *pwAuthenticator) Authenticate(addr net.Addr, auth string, tx uint64) (ok bool, id string) {
-	if auth != a.Password {
-		return false, ""
-	}
-	return true, a.ID
-}
-
 // tcpEchoServer is a TCP server that echoes what it reads from the connection.
 // It will never actively close the connection.
 type tcpEchoServer struct {
@@ -70,92 +57,6 @@ func (s *tcpEchoServer) Close() error {
 	return s.Listener.Close()
 }
 
-// tcpDoubleEchoServer is a TCP server that echoes twice what it reads from the connection.
-// It will never actively close the connection.
-type tcpDoubleEchoServer struct {
-	Listener net.Listener
-}
-
-func (s *tcpDoubleEchoServer) Serve() error {
-	for {
-		conn, err := s.Listener.Accept()
-		if err != nil {
-			return err
-		}
-		go func() {
-			buf := make([]byte, 1024)
-			for {
-				n, err := conn.Read(buf)
-				if err != nil {
-					_ = conn.Close()
-					return
-				}
-				_, _ = conn.Write(buf[:n])
-				_, _ = conn.Write(buf[:n])
-			}
-		}()
-	}
-}
-
-func (s *tcpDoubleEchoServer) Close() error {
-	return s.Listener.Close()
-}
-
-type sinkEvent struct {
-	Data []byte
-	Err  error
-}
-
-// tcpSinkServer is a TCP server that reads data from the connection,
-// and sends what it read to the channel when the connection is closed.
-type tcpSinkServer struct {
-	Listener net.Listener
-	Ch       chan<- sinkEvent
-}
-
-func (s *tcpSinkServer) Serve() error {
-	for {
-		conn, err := s.Listener.Accept()
-		if err != nil {
-			return err
-		}
-		go func() {
-			var buf bytes.Buffer
-			_, err := io.Copy(&buf, conn)
-			_ = conn.Close()
-			s.Ch <- sinkEvent{Data: buf.Bytes(), Err: err}
-		}()
-	}
-}
-
-func (s *tcpSinkServer) Close() error {
-	return s.Listener.Close()
-}
-
-// tcpSenderServer is a TCP server that sends data to the connection,
-// and closes the connection when all data has been sent.
-type tcpSenderServer struct {
-	Listener net.Listener
-	Data     []byte
-}
-
-func (s *tcpSenderServer) Serve() error {
-	for {
-		conn, err := s.Listener.Accept()
-		if err != nil {
-			return err
-		}
-		go func() {
-			_, _ = conn.Write(s.Data)
-			_ = conn.Close()
-		}()
-	}
-}
-
-func (s *tcpSenderServer) Close() error {
-	return s.Listener.Close()
-}
-
 // udpEchoServer is a UDP server that echoes what it reads from the connection.
 // It will never actively close the connection.
 type udpEchoServer struct {
@@ -179,140 +80,3 @@ func (s *udpEchoServer) Serve() error {
 func (s *udpEchoServer) Close() error {
 	return s.Conn.Close()
 }
-
-// udpDoubleEchoServer is a UDP server that echoes twice what it reads from the connection.
-// It will never actively close the connection.
-type udpDoubleEchoServer struct {
-	Conn net.PacketConn
-}
-
-func (s *udpDoubleEchoServer) Serve() error {
-	buf := make([]byte, 65536)
-	for {
-		n, addr, err := s.Conn.ReadFrom(buf)
-		if err != nil {
-			return err
-		}
-		_, err = s.Conn.WriteTo(buf[:n], addr)
-		if err != nil {
-			return err
-		}
-		_, err = s.Conn.WriteTo(buf[:n], addr)
-		if err != nil {
-			return err
-		}
-	}
-}
-
-func (s *udpDoubleEchoServer) Close() error {
-	return s.Conn.Close()
-}
-
-type connectEvent struct {
-	Addr net.Addr
-	ID   string
-	TX   uint64
-}
-
-type disconnectEvent struct {
-	Addr net.Addr
-	ID   string
-	Err  error
-}
-
-type tcpRequestEvent struct {
-	Addr    net.Addr
-	ID      string
-	ReqAddr string
-}
-
-type tcpErrorEvent struct {
-	Addr    net.Addr
-	ID      string
-	ReqAddr string
-	Err     error
-}
-
-type udpRequestEvent struct {
-	Addr      net.Addr
-	ID        string
-	SessionID uint32
-}
-
-type udpErrorEvent struct {
-	Addr      net.Addr
-	ID        string
-	SessionID uint32
-	Err       error
-}
-
-type channelEventLogger struct {
-	ConnectEventCh    chan connectEvent
-	DisconnectEventCh chan disconnectEvent
-	TCPRequestEventCh chan tcpRequestEvent
-	TCPErrorEventCh   chan tcpErrorEvent
-	UDPRequestEventCh chan udpRequestEvent
-	UDPErrorEventCh   chan udpErrorEvent
-}
-
-func (l *channelEventLogger) Connect(addr net.Addr, id string, tx uint64) {
-	if l.ConnectEventCh != nil {
-		l.ConnectEventCh <- connectEvent{
-			Addr: addr,
-			ID:   id,
-			TX:   tx,
-		}
-	}
-}
-
-func (l *channelEventLogger) Disconnect(addr net.Addr, id string, err error) {
-	if l.DisconnectEventCh != nil {
-		l.DisconnectEventCh <- disconnectEvent{
-			Addr: addr,
-			ID:   id,
-			Err:  err,
-		}
-	}
-}
-
-func (l *channelEventLogger) TCPRequest(addr net.Addr, id, reqAddr string) {
-	if l.TCPRequestEventCh != nil {
-		l.TCPRequestEventCh <- tcpRequestEvent{
-			Addr:    addr,
-			ID:      id,
-			ReqAddr: reqAddr,
-		}
-	}
-}
-
-func (l *channelEventLogger) TCPError(addr net.Addr, id, reqAddr string, err error) {
-	if l.TCPErrorEventCh != nil {
-		l.TCPErrorEventCh <- tcpErrorEvent{
-			Addr:    addr,
-			ID:      id,
-			ReqAddr: reqAddr,
-			Err:     err,
-		}
-	}
-}
-
-func (l *channelEventLogger) UDPRequest(addr net.Addr, id string, sessionID uint32, reqAddr string) {
-	if l.UDPRequestEventCh != nil {
-		l.UDPRequestEventCh <- udpRequestEvent{
-			Addr:      addr,
-			ID:        id,
-			SessionID: sessionID,
-		}
-	}
-}
-
-func (l *channelEventLogger) UDPError(addr net.Addr, id string, sessionID uint32, err error) {
-	if l.UDPErrorEventCh != nil {
-		l.UDPErrorEventCh <- udpErrorEvent{
-			Addr:      addr,
-			ID:        id,
-			SessionID: sessionID,
-			Err:       err,
-		}
-	}
-}