From 2a07ead0dc1f0f2aadb9d8ef831f11e1eb11a1f9 Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Mon, 2 Jul 2018 23:45:26 +0200
Subject: [PATCH] test case for large kcp transfer

---
 testing/scenarios/vmess_test.go | 170 ++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)

diff --git a/testing/scenarios/vmess_test.go b/testing/scenarios/vmess_test.go
index 2dd9b7ec..e70a2b67 100644
--- a/testing/scenarios/vmess_test.go
+++ b/testing/scenarios/vmess_test.go
@@ -22,6 +22,7 @@ import (
 	"v2ray.com/core/testing/servers/tcp"
 	"v2ray.com/core/testing/servers/udp"
 	"v2ray.com/core/transport/internet"
+	"v2ray.com/core/transport/internet/kcp"
 	. "v2ray.com/ext/assert"
 )
 
@@ -795,6 +796,175 @@ func TestVMessKCP(t *testing.T) {
 	CloseAllServers(servers)
 }
 
+func TestVMessKCPLarge(t *testing.T) {
+	assert := With(t)
+
+	tcpServer := tcp.Server{
+		MsgProcessor: xor,
+	}
+	dest, err := tcpServer.Start()
+	assert(err, IsNil)
+	defer tcpServer.Close()
+
+	userID := protocol.NewID(uuid.New())
+	serverPort := udp.PickPort()
+	serverConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortRange: net.SinglePortRange(serverPort),
+					Listen:    net.NewIPOrDomain(net.LocalHostIP),
+					StreamSettings: &internet.StreamConfig{
+						Protocol: internet.TransportProtocol_MKCP,
+						TransportSettings: []*internet.TransportConfig{
+							{
+								Protocol: internet.TransportProtocol_MKCP,
+								Settings: serial.ToTypedMessage(&kcp.Config{
+									ReadBuffer: &kcp.ReadBuffer{
+										Size: 4096,
+									},
+									WriteBuffer: &kcp.WriteBuffer{
+										Size: 4096,
+									},
+									UplinkCapacity: &kcp.UplinkCapacity{
+										Value: 20,
+									},
+									DownlinkCapacity: &kcp.DownlinkCapacity{
+										Value: 20,
+									},
+								}),
+							},
+						},
+					},
+				}),
+				ProxySettings: serial.ToTypedMessage(&inbound.Config{
+					User: []*protocol.User{
+						{
+							Account: serial.ToTypedMessage(&vmess.Account{
+								Id:      userID.String(),
+								AlterId: 64,
+							}),
+						},
+					},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&freedom.Config{}),
+			},
+		},
+	}
+
+	clientPort := tcp.PickPort()
+	clientConfig := &core.Config{
+		App: []*serial.TypedMessage{
+			serial.ToTypedMessage(&log.Config{
+				ErrorLogLevel: clog.Severity_Debug,
+				ErrorLogType:  log.LogType_Console,
+			}),
+		},
+		Inbound: []*core.InboundHandlerConfig{
+			{
+				ReceiverSettings: serial.ToTypedMessage(&proxyman.ReceiverConfig{
+					PortRange: net.SinglePortRange(clientPort),
+					Listen:    net.NewIPOrDomain(net.LocalHostIP),
+				}),
+				ProxySettings: serial.ToTypedMessage(&dokodemo.Config{
+					Address: net.NewIPOrDomain(dest.Address),
+					Port:    uint32(dest.Port),
+					NetworkList: &net.NetworkList{
+						Network: []net.Network{net.Network_TCP},
+					},
+				}),
+			},
+		},
+		Outbound: []*core.OutboundHandlerConfig{
+			{
+				ProxySettings: serial.ToTypedMessage(&outbound.Config{
+					Receiver: []*protocol.ServerEndpoint{
+						{
+							Address: net.NewIPOrDomain(net.LocalHostIP),
+							Port:    uint32(serverPort),
+							User: []*protocol.User{
+								{
+									Account: serial.ToTypedMessage(&vmess.Account{
+										Id:      userID.String(),
+										AlterId: 64,
+										SecuritySettings: &protocol.SecurityConfig{
+											Type: protocol.SecurityType_AES128_GCM,
+										},
+									}),
+								},
+							},
+						},
+					},
+				}),
+				SenderSettings: serial.ToTypedMessage(&proxyman.SenderConfig{
+					StreamSettings: &internet.StreamConfig{
+						Protocol: internet.TransportProtocol_MKCP,
+						TransportSettings: []*internet.TransportConfig{
+							{
+								Protocol: internet.TransportProtocol_MKCP,
+								Settings: serial.ToTypedMessage(&kcp.Config{
+									ReadBuffer: &kcp.ReadBuffer{
+										Size: 4096,
+									},
+									WriteBuffer: &kcp.WriteBuffer{
+										Size: 4096,
+									},
+									UplinkCapacity: &kcp.UplinkCapacity{
+										Value: 20,
+									},
+									DownlinkCapacity: &kcp.DownlinkCapacity{
+										Value: 20,
+									},
+								}),
+							},
+						},
+					},
+				}),
+			},
+		},
+	}
+
+	servers, err := InitializeServerConfigs(serverConfig, clientConfig)
+	assert(err, IsNil)
+
+	var wg sync.WaitGroup
+	for i := 0; i < 2; i++ {
+		wg.Add(1)
+		go func() {
+			conn, err := net.DialTCP("tcp", nil, &net.TCPAddr{
+				IP:   []byte{127, 0, 0, 1},
+				Port: int(clientPort),
+			})
+			assert(err, IsNil)
+
+			payload := make([]byte, 10240*1024)
+			rand.Read(payload)
+
+			nBytes, err := conn.Write(payload)
+			assert(err, IsNil)
+			assert(nBytes, Equals, len(payload))
+
+			response := readFrom(conn, time.Minute*10, 10240*1024)
+			assert(response, Equals, xor(payload))
+			assert(conn.Close(), IsNil)
+			wg.Done()
+		}()
+	}
+	wg.Wait()
+
+	CloseAllServers(servers)
+}
+
 func TestVMessIPv6(t *testing.T) {
 	t.SkipNow() // No IPv6 on travis-ci.
 	assert := With(t)