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package wire
import (
"io"
"testing"
"github.com/quic-go/quic-go/internal/protocol"
"github.com/stretchr/testify/require"
)
func TestParseNewConnectionIDFrame(t *testing.T) {
data := encodeVarInt(0xdeadbeef) // sequence number
data = append(data, encodeVarInt(0xcafe)...) // retire prior to
data = append(data, 10) // connection ID length
data = append(data, []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}...) // connection ID
data = append(data, []byte("deadbeefdecafbad")...) // stateless reset token
frame, l, err := parseNewConnectionIDFrame(data, protocol.Version1)
require.NoError(t, err)
require.Equal(t, uint64(0xdeadbeef), frame.SequenceNumber)
require.Equal(t, uint64(0xcafe), frame.RetirePriorTo)
require.Equal(t, protocol.ParseConnectionID([]byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}), frame.ConnectionID)
require.Equal(t, "deadbeefdecafbad", string(frame.StatelessResetToken[:]))
require.Equal(t, len(data), l)
}
func TestParseNewConnectionIDRetirePriorToLargerThanSequenceNumber(t *testing.T) {
data := encodeVarInt(1000) // sequence number
data = append(data, encodeVarInt(1001)...) // retire prior to
data = append(data, 3)
data = append(data, []byte{1, 2, 3}...)
data = append(data, []byte("deadbeefdecafbad")...) // stateless reset token
_, _, err := parseNewConnectionIDFrame(data, protocol.Version1)
require.EqualError(t, err, "Retire Prior To value (1001) larger than Sequence Number (1000)")
}
func TestParseNewConnectionIDZeroLengthConnID(t *testing.T) {
data := encodeVarInt(42) // sequence number
data = append(data, encodeVarInt(12)...) // retire prior to
data = append(data, 0) // connection ID length
_, _, err := parseNewConnectionIDFrame(data, protocol.Version1)
require.EqualError(t, err, "invalid zero-length connection ID")
}
func TestParseNewConnectionIDInvalidConnIDLength(t *testing.T) {
data := encodeVarInt(0xdeadbeef) // sequence number
data = append(data, encodeVarInt(0xcafe)...) // retire prior to
data = append(data, 21) // connection ID length
data = append(data, []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}...) // connection ID
data = append(data, []byte("deadbeefdecafbad")...) // stateless reset token
_, _, err := parseNewConnectionIDFrame(data, protocol.Version1)
require.Equal(t, protocol.ErrInvalidConnectionIDLen, err)
}
func TestParseNewConnectionIDErrorsOnEOFs(t *testing.T) {
data := encodeVarInt(0xdeadbeef) // sequence number
data = append(data, encodeVarInt(0xcafe1234)...) // retire prior to
data = append(data, 10) // connection ID length
data = append(data, []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}...) // connection ID
data = append(data, []byte("deadbeefdecafbad")...) // stateless reset token
_, l, err := parseNewConnectionIDFrame(data, protocol.Version1)
require.NoError(t, err)
require.Equal(t, len(data), l)
for i := range data {
_, _, err := parseNewConnectionIDFrame(data[:i], protocol.Version1)
require.Equal(t, io.EOF, err)
}
}
func TestWriteNewConnectionIDFrame(t *testing.T) {
token := protocol.StatelessResetToken{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
frame := &NewConnectionIDFrame{
SequenceNumber: 0x1337,
RetirePriorTo: 0x42,
ConnectionID: protocol.ParseConnectionID([]byte{1, 2, 3, 4, 5, 6}),
StatelessResetToken: token,
}
b, err := frame.Append(nil, protocol.Version1)
require.NoError(t, err)
expected := []byte{byte(FrameTypeNewConnectionID)}
expected = append(expected, encodeVarInt(0x1337)...)
expected = append(expected, encodeVarInt(0x42)...)
expected = append(expected, 6)
expected = append(expected, []byte{1, 2, 3, 4, 5, 6}...)
expected = append(expected, token[:]...)
require.Equal(t, expected, b)
require.Equal(t, int(frame.Length(protocol.Version1)), len(b))
}
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