git.r.bdr.sh - rbdr/mobius/blob - hotline/handshake_test.go

   1 package hotline
   2
   3 import (
   4         "bytes"
   5         "testing"
   6 )
   7
   8 func TestHandshakeWrite(t *testing.T) {
   9         tests := []struct {
  10                 name          string
  11                 input         []byte
  12                 expected      handshake
  13                 expectedError string
  14         }{
  15                 {
  16                         name:  "Valid Handshake",
  17                         input: []byte{0x54, 0x52, 0x54, 0x50, 0x48, 0x4F, 0x54, 0x4C, 0x00, 0x01, 0x00, 0x02},
  18                         expected: handshake{
  19                                 Protocol:    [4]byte{0x54, 0x52, 0x54, 0x50},
  20                                 SubProtocol: [4]byte{0x48, 0x4F, 0x54, 0x4C},
  21                                 Version:     [2]byte{0x00, 0x01},
  22                                 SubVersion:  [2]byte{0x00, 0x02},
  23                         },
  24                         expectedError: "",
  25                 },
  26                 {
  27                         name:          "Invalid Handshake Size",
  28                         input:         []byte{0x54, 0x52, 0x54, 0x50},
  29                         expected:      handshake{},
  30                         expectedError: "invalid handshake size",
  31                 },
  32                 {
  33                         name:          "Empty Handshake Data",
  34                         input:         []byte{},
  35                         expected:      handshake{},
  36                         expectedError: "invalid handshake size",
  37                 },
  38         }
  39
  40         for _, tt := range tests {
  41                 t.Run(tt.name, func(t *testing.T) {
  42                         var h handshake
  43                         n, err := h.Write(tt.input)
  44
  45                         if tt.expectedError != "" {
  46                                 if err == nil || err.Error() != tt.expectedError {
  47                                         t.Fatalf("expected error %q, got %q", tt.expectedError, err)
  48                                 }
  49                         } else {
  50                                 if err != nil {
  51                                         t.Fatalf("unexpected error: %v", err)
  52                                 }
  53                                 if n != handshakeSize {
  54                                         t.Fatalf("expected %d bytes written, got %d", handshakeSize, n)
  55                                 }
  56                                 if h != tt.expected {
  57                                         t.Fatalf("expected handshake %+v, got %+v", tt.expected, h)
  58                                 }
  59                         }
  60                 })
  61         }
  62 }
  63
  64 func TestHandshakeValid(t *testing.T) {
  65         tests := []struct {
  66                 name     string
  67                 input    handshake
  68                 expected bool
  69         }{
  70                 {
  71                         name: "Valid Handshake",
  72                         input: handshake{
  73                                 Protocol:    [4]byte{0x54, 0x52, 0x54, 0x50}, // TRTP
  74                                 SubProtocol: [4]byte{0x48, 0x4F, 0x54, 0x4C}, // HOTL
  75                                 Version:     [2]byte{0x00, 0x01},
  76                                 SubVersion:  [2]byte{0x00, 0x02},
  77                         },
  78                         expected: true,
  79                 },
  80                 {
  81                         name: "Invalid Protocol",
  82                         input: handshake{
  83                                 Protocol:    [4]byte{0x00, 0x00, 0x00, 0x00},
  84                                 SubProtocol: [4]byte{0x48, 0x4F, 0x54, 0x4C}, // HOTL
  85                                 Version:     [2]byte{0x00, 0x01},
  86                                 SubVersion:  [2]byte{0x00, 0x02},
  87                         },
  88                         expected: false,
  89                 },
  90                 {
  91                         name: "Invalid SubProtocol",
  92                         input: handshake{
  93                                 Protocol:    [4]byte{0x54, 0x52, 0x54, 0x50}, // TRTP
  94                                 SubProtocol: [4]byte{0x00, 0x00, 0x00, 0x00},
  95                                 Version:     [2]byte{0x00, 0x01},
  96                                 SubVersion:  [2]byte{0x00, 0x02},
  97                         },
  98                         expected: false,
  99                 },
 100                 {
 101                         name: "Invalid Protocol and SubProtocol",
 102                         input: handshake{
 103                                 Protocol:    [4]byte{0x00, 0x00, 0x00, 0x00},
 104                                 SubProtocol: [4]byte{0x00, 0x00, 0x00, 0x00},
 105                                 Version:     [2]byte{0x00, 0x01},
 106                                 SubVersion:  [2]byte{0x00, 0x02},
 107                         },
 108                         expected: false,
 109                 },
 110                 {
 111                         name: "Valid Handshake with Different Version",
 112                         input: handshake{
 113                                 Protocol:    [4]byte{0x54, 0x52, 0x54, 0x50}, // TRTP
 114                                 SubProtocol: [4]byte{0x48, 0x4F, 0x54, 0x4C}, // HOTL
 115                                 Version:     [2]byte{0x00, 0x02},
 116                                 SubVersion:  [2]byte{0x00, 0x03},
 117                         },
 118                         expected: true,
 119                 },
 120         }
 121
 122         for _, tt := range tests {
 123                 t.Run(tt.name, func(t *testing.T) {
 124                         result := tt.input.Valid()
 125                         if result != tt.expected {
 126                                 t.Fatalf("expected %v, got %v", tt.expected, result)
 127                         }
 128                 })
 129         }
 130 }
 131
 132 // readWriteBuffer combines input and output buffers to implement io.ReadWriter
 133 type readWriteBuffer struct {
 134         input  *bytes.Buffer
 135         output *bytes.Buffer
 136 }
 137
 138 func (rw *readWriteBuffer) Read(p []byte) (int, error) {
 139         return rw.input.Read(p)
 140 }
 141
 142 func (rw *readWriteBuffer) Write(p []byte) (int, error) {
 143         return rw.output.Write(p)
 144 }
 145
 146 func TestPerformHandshake(t *testing.T) {
 147         tests := []struct {
 148                 name           string
 149                 input          []byte
 150                 expectedOutput []byte
 151                 expectedError  string
 152         }{
 153                 {
 154                         name: "Valid Handshake",
 155                         input: []byte{
 156                                 0x54, 0x52, 0x54, 0x50, // TRTP
 157                                 0x48, 0x4F, 0x54, 0x4C, // HOTL
 158                                 0x00, 0x01, 0x00, 0x02, // Version 1, SubVersion 2
 159                         },
 160                         expectedOutput: []byte{0x54, 0x52, 0x54, 0x50, 0x00, 0x00, 0x00, 0x00},
 161                         expectedError:  "",
 162                 },
 163                 {
 164                         name: "Invalid Handshake Size",
 165                         input: []byte{
 166                                 0x54, 0x52, 0x54, 0x50, // TRTP
 167                         },
 168                         expectedOutput: nil,
 169                         expectedError:  "read handshake: invalid handshake size",
 170                 },
 171                 {
 172                         name: "Invalid Protocol",
 173                         input: []byte{
 174                                 0x00, 0x00, 0x00, 0x00, // Invalid protocol
 175                                 0x48, 0x4F, 0x54, 0x4C, // HOTL
 176                                 0x00, 0x01, 0x00, 0x02, // Version 1, SubVersion 2
 177                         },
 178                         expectedOutput: nil,
 179                         expectedError:  "invalid protocol or sub-protocol in handshake",
 180                 },
 181                 {
 182                         name: "Invalid SubProtocol",
 183                         input: []byte{
 184                                 0x54, 0x52, 0x54, 0x50, // TRTP
 185                                 0x00, 0x00, 0x00, 0x00, // Invalid sub-protocol
 186                                 0x00, 0x01, 0x00, 0x02, // Version 1, SubVersion 2
 187                         },
 188                         expectedOutput: nil,
 189                         expectedError:  "invalid protocol or sub-protocol in handshake",
 190                 },
 191                 {
 192                         name: "Binary Read Error",
 193                         input: []byte{
 194                                 0xFF, 0xFF, 0xFF, 0xFF, // Invalid data
 195                                 0xFF, 0xFF, 0xFF, 0xFF,
 196                                 0xFF, 0xFF, 0xFF, 0xFF,
 197                         },
 198                         expectedOutput: nil,
 199                         expectedError:  "invalid protocol or sub-protocol in handshake",
 200                 },
 201         }
 202
 203         for _, tt := range tests {
 204                 t.Run(tt.name, func(t *testing.T) {
 205                         inputBuffer := bytes.NewBuffer(tt.input)
 206                         outputBuffer := &bytes.Buffer{}
 207                         rw := &readWriteBuffer{
 208                                 input:  inputBuffer,
 209                                 output: outputBuffer,
 210                         }
 211
 212                         err := performHandshake(rw)
 213
 214                         if tt.expectedError != "" {
 215                                 if err == nil || err.Error() != tt.expectedError {
 216                                         t.Fatalf("expected error %q, got %q", tt.expectedError, err)
 217                                 }
 218                         } else {
 219                                 if err != nil {
 220                                         t.Fatalf("unexpected error: %v", err)
 221                                 }
 222                                 output := outputBuffer.Bytes()
 223                                 if !bytes.Equal(output, tt.expectedOutput) {
 224                                         t.Fatalf("expected output %v, got %v", tt.expectedOutput, output)
 225                                 }
 226                         }
 227                 })
 228         }
 229 }