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package quic
import (
"testing"
"github.com/quic-go/quic-go/internal/protocol"
"github.com/quic-go/quic-go/internal/wire"
"github.com/stretchr/testify/require"
)
func TestCryptoStreamManager(t *testing.T) {
t.Run("Initial", func(t *testing.T) {
testCryptoStreamManager(t, protocol.EncryptionInitial)
})
t.Run("Handshake", func(t *testing.T) {
testCryptoStreamManager(t, protocol.EncryptionHandshake)
})
t.Run("1-RTT", func(t *testing.T) {
testCryptoStreamManager(t, protocol.Encryption1RTT)
})
}
func testCryptoStreamManager(t *testing.T, encLevel protocol.EncryptionLevel) {
initialStream := newInitialCryptoStream(true)
handshakeStream := newCryptoStream()
oneRTTStream := newCryptoStream()
csm := newCryptoStreamManager(initialStream, handshakeStream, oneRTTStream)
require.NoError(t, csm.HandleCryptoFrame(&wire.CryptoFrame{Data: []byte("foo")}, encLevel))
require.NoError(t, csm.HandleCryptoFrame(&wire.CryptoFrame{Data: []byte("bar"), Offset: 3}, encLevel))
var data []byte
for {
b := csm.GetCryptoData(encLevel)
if len(b) == 0 {
break
}
data = append(data, b...)
}
require.Equal(t, []byte("foobar"), data)
}
func TestCryptoStreamManagerInvalidEncryptionLevel(t *testing.T) {
csm := newCryptoStreamManager(nil, nil, nil)
require.ErrorContains(t,
csm.HandleCryptoFrame(&wire.CryptoFrame{}, protocol.Encryption0RTT),
"received CRYPTO frame with unexpected encryption level",
)
}
func TestCryptoStreamManagerDropEncryptionLevel(t *testing.T) {
t.Run("Initial", func(t *testing.T) {
testCryptoStreamManagerDropEncryptionLevel(t, protocol.EncryptionInitial)
})
t.Run("Handshake", func(t *testing.T) {
testCryptoStreamManagerDropEncryptionLevel(t, protocol.EncryptionHandshake)
})
}
func testCryptoStreamManagerDropEncryptionLevel(t *testing.T, encLevel protocol.EncryptionLevel) {
initialStream := newInitialCryptoStream(true)
handshakeStream := newCryptoStream()
oneRTTStream := newCryptoStream()
csm := newCryptoStreamManager(initialStream, handshakeStream, oneRTTStream)
require.NoError(t, csm.HandleCryptoFrame(&wire.CryptoFrame{Data: []byte("foo")}, encLevel))
require.ErrorContains(t, csm.Drop(encLevel), "encryption level changed, but crypto stream has more data to read")
require.Equal(t, []byte("foo"), csm.GetCryptoData(encLevel))
require.NoError(t, csm.Drop(encLevel))
}
func TestCryptoStreamManagerPostHandshake(t *testing.T) {
initialStream := newInitialCryptoStream(true)
handshakeStream := newCryptoStream()
oneRTTStream := newCryptoStream()
csm := newCryptoStreamManager(initialStream, handshakeStream, oneRTTStream)
_, err := oneRTTStream.Write([]byte("foo"))
require.NoError(t, err)
_, err = oneRTTStream.Write([]byte("bar"))
require.NoError(t, err)
require.Equal(t,
&wire.CryptoFrame{Data: []byte("foobar")},
csm.GetPostHandshakeData(protocol.ByteCount(10)),
)
}
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