|
| 1 | +package transport |
| 2 | + |
| 3 | +import ( |
| 4 | + "testing" |
| 5 | + |
| 6 | + "github.com/stretchr/testify/assert" |
| 7 | +) |
| 8 | + |
| 9 | +func TestHandleReceivedData_FullPacket(t *testing.T) { |
| 10 | + tc := NewTransportController() |
| 11 | + |
| 12 | + data := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 13 | + want := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 14 | + got := tc.HandleReceivedData(data) |
| 15 | + |
| 16 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 17 | + assert.Equal(t, len(got), 1, "expected 1 packet, got %d", len(got)) |
| 18 | + assert.Equal(t, got[0].ToBytes(), want, "expected packet bytes %v, got %v", want, got[0].ToBytes()) |
| 19 | +} |
| 20 | + |
| 21 | +func TestHandleReceivedData_FullPacketWithJunk(t *testing.T) { |
| 22 | + tc := NewTransportController() |
| 23 | + |
| 24 | + data := []byte{0x65, 0x45, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55, 0x65, 0x24, 0x67} |
| 25 | + want := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 26 | + got := tc.HandleReceivedData(data) |
| 27 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 28 | + assert.Equal(t, len(got), 1, "expected 1 packet, got %d", len(got)) |
| 29 | + assert.Equal(t, got[0].ToBytes(), want, "expected packet bytes %v, got %v", want, got[0].ToBytes()) |
| 30 | +} |
| 31 | + |
| 32 | +func TestHandleReceivedData_SplitStartSequence(t *testing.T) { |
| 33 | + tc := NewTransportController() |
| 34 | + want := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 35 | + // First call: only 0x55 |
| 36 | + got := tc.HandleReceivedData([]byte{0x55}) |
| 37 | + |
| 38 | + assert.Nil(t, got, "expected nil packet list") |
| 39 | + |
| 40 | + // Second call: 0xaa and 0x02, should complete start and fill |
| 41 | + got = tc.HandleReceivedData([]byte{0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55}) |
| 42 | + |
| 43 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 44 | + assert.Equal(t, len(got), 1, "expected 1 packet, got %d", len(got)) |
| 45 | + assert.Equal(t, got[0].ToBytes(), want, "expected packet bytes %v, got %v", want, got[0].ToBytes()) |
| 46 | +} |
| 47 | + |
| 48 | +func TestHandleReceivedData_SplitStartSequenceWithJunk(t *testing.T) { |
| 49 | + tc := NewTransportController() |
| 50 | + want := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 51 | + // First call: only 0x55 |
| 52 | + got := tc.HandleReceivedData([]byte{0x00, 0x00, 0x12, 0x70, 0x55}) |
| 53 | + |
| 54 | + assert.Nil(t, got, "expected nil packet list") |
| 55 | + // Second call: 0xaa and 0x02, should complete start and fill |
| 56 | + got = tc.HandleReceivedData([]byte{0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55}) |
| 57 | + |
| 58 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 59 | + assert.Equal(t, len(got), 1, "expected 1 packet, got %d", len(got)) |
| 60 | + assert.Equal(t, got[0].ToBytes(), want, "expected packet bytes %v, got %v", want, got[0].ToBytes()) |
| 61 | +} |
| 62 | + |
| 63 | +func TestHandleReceivedData_MultiplePackets(t *testing.T) { |
| 64 | + tc := NewTransportController() |
| 65 | + // Two packets in one buffer |
| 66 | + data := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x06, 0x95, 0x4E, 0xaa, 0x55} |
| 67 | + want := [][]byte{ |
| 68 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55}, |
| 69 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55}, |
| 70 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x06, 0x95, 0x4E, 0xaa, 0x55}, |
| 71 | + } |
| 72 | + got := tc.HandleReceivedData(data) |
| 73 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 74 | + assert.Equal(t, len(got), 3, "expected 1 packet, got %d", len(got)) |
| 75 | + assert.Equal(t, got[0].ToBytes(), want[0], "expected packet bytes %v, got %v", want[0], got[0].ToBytes()) |
| 76 | + assert.Equal(t, got[1].ToBytes(), want[1], "expected packet bytes %v, got %v", want[1], got[1].ToBytes()) |
| 77 | + assert.Equal(t, got[2].ToBytes(), want[2], "expected packet bytes %v, got %v", want[2], got[2].ToBytes()) |
| 78 | +} |
| 79 | + |
| 80 | +func TestHandleReceivedData_MultiplePacketsWithJunk(t *testing.T) { |
| 81 | + tc := NewTransportController() |
| 82 | + // Two packets in one buffer |
| 83 | + data := []byte{0x00, 0x01, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55, |
| 84 | + 0x00, 0x34, 0x45, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x06, 0x95, 0x4E, 0xaa, 0x55, 0x00, 0x03} |
| 85 | + want := [][]byte{ |
| 86 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55}, |
| 87 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55}, |
| 88 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x06, 0x95, 0x4E, 0xaa, 0x55}, |
| 89 | + } |
| 90 | + got := tc.HandleReceivedData(data) |
| 91 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 92 | + assert.Equal(t, len(got), 3, "expected 1 packet, got %d", len(got)) |
| 93 | + assert.Equal(t, got[0].ToBytes(), want[0], "expected packet bytes %v, got %v", want[0], got[0].ToBytes()) |
| 94 | + assert.Equal(t, got[1].ToBytes(), want[1], "expected packet bytes %v, got %v", want[1], got[1].ToBytes()) |
| 95 | + assert.Equal(t, got[2].ToBytes(), want[2], "expected packet bytes %v, got %v", want[2], got[2].ToBytes()) |
| 96 | +} |
| 97 | + |
| 98 | +func TestHandleReceivedData_NoStartSequence(t *testing.T) { |
| 99 | + tc := NewTransportController() |
| 100 | + data := []byte{0x01, 0x02, 0x03} |
| 101 | + got := tc.HandleReceivedData(data) |
| 102 | + assert.Nil(t, got, "expected nil packet list for data without start sequence") |
| 103 | + |
| 104 | +} |
| 105 | + |
| 106 | +func TestHandleReceivedData_PartialPacket(t *testing.T) { |
| 107 | + tc := NewTransportController() |
| 108 | + want := []byte{0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55} |
| 109 | + // Only part of the packet arrives |
| 110 | + |
| 111 | + got := tc.HandleReceivedData([]byte{0x55, 0xaa}) |
| 112 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 113 | + // Second call: more data arrives, but still not complete |
| 114 | + got = tc.HandleReceivedData([]byte{0x02, 0x00, 0x03, 0x04, 0xB6}) |
| 115 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 116 | + |
| 117 | + // Third call: more data arrives |
| 118 | + got = tc.HandleReceivedData([]byte{0x5C, 0xaa}) |
| 119 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 120 | + |
| 121 | + // Fourth call: complete packet arrives |
| 122 | + got = tc.HandleReceivedData([]byte{0x55}) |
| 123 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 124 | + assert.Equal(t, len(got), 1, "expected 1 packet, got %d", len(got)) |
| 125 | + assert.Equal(t, got[0].ToBytes(), want, "expected packet bytes %v, got %v", want, got[0].ToBytes()) |
| 126 | +} |
| 127 | + |
| 128 | +func TestHandleReceivedData_PartialPacketMultiplePacket(t *testing.T) { |
| 129 | + tc := NewTransportController() |
| 130 | + want := [][]byte{ |
| 131 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x04, 0xB6, 0x5C, 0xaa, 0x55}, |
| 132 | + {0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55}, |
| 133 | + } |
| 134 | + // Only part of the packet arrives |
| 135 | + |
| 136 | + got := tc.HandleReceivedData([]byte{0x55, 0xaa}) |
| 137 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 138 | + // Second call: more data arrives, but still not complete |
| 139 | + got = tc.HandleReceivedData([]byte{0x02, 0x00, 0x03, 0x04, 0xB6}) |
| 140 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 141 | + |
| 142 | + // Third call: more data arrives |
| 143 | + got = tc.HandleReceivedData([]byte{0x5C, 0xaa}) |
| 144 | + assert.Nil(t, got, "expected nil packet list for partial packet") |
| 145 | + |
| 146 | + // Fourth call: complete packet arrives |
| 147 | + got = tc.HandleReceivedData([]byte{0x55, 0x55, 0xaa, 0x02, 0x00, 0x03, 0x05, 0xA7, 0xD5, 0xaa, 0x55}) |
| 148 | + assert.NotEmpty(t, got, "expected non-nil packet list") |
| 149 | + assert.Equal(t, len(got), 2, "expected 2 packet, got %d", len(got)) |
| 150 | + assert.Equal(t, got[0].ToBytes(), want[0], "expected packet bytes %v, got %v", want[0], got[0].ToBytes()) |
| 151 | + assert.Equal(t, got[1].ToBytes(), want[1], "expected packet bytes %v, got %v", want[1], got[1].ToBytes()) |
| 152 | +} |
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