forked from quic-go/quic-go
92aa7b41d5
* handshake: store key update interval in an atomic We recently changed the way the key update interval is set in tests to use an environment variable. This resolved a race condition that existed in the earlier logic, however, parsing of the environment variable now shows up in benchmark tests. Using an atomic variable should have a negligible performance impact. * use an atomic swap
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package self_test
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import (
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"context"
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"io"
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"testing"
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"time"
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"github.com/quic-go/quic-go"
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"github.com/quic-go/quic-go/internal/handshake"
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"github.com/quic-go/quic-go/internal/protocol"
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"github.com/quic-go/quic-go/logging"
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"github.com/stretchr/testify/require"
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)
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func TestKeyUpdates(t *testing.T) {
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reset := handshake.SetKeyUpdateInterval(1) // update keys as frequently as possible
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t.Cleanup(reset)
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var sentHeaders []*logging.ShortHeader
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var receivedHeaders []*logging.ShortHeader
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countKeyPhases := func() (sent, received int) {
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lastKeyPhase := protocol.KeyPhaseOne
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for _, hdr := range sentHeaders {
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if hdr.KeyPhase != lastKeyPhase {
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sent++
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lastKeyPhase = hdr.KeyPhase
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}
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}
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lastKeyPhase = protocol.KeyPhaseOne
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for _, hdr := range receivedHeaders {
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if hdr.KeyPhase != lastKeyPhase {
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received++
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lastKeyPhase = hdr.KeyPhase
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}
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}
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return
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}
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server, err := quic.Listen(newUDPConnLocalhost(t), getTLSConfig(), nil)
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require.NoError(t, err)
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defer server.Close()
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ctx, cancel := context.WithTimeout(context.Background(), time.Second)
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defer cancel()
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conn, err := quic.Dial(
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ctx,
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newUDPConnLocalhost(t),
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server.Addr(),
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getTLSClientConfig(),
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getQuicConfig(&quic.Config{Tracer: func(context.Context, logging.Perspective, quic.ConnectionID) *logging.ConnectionTracer {
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return &logging.ConnectionTracer{
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SentShortHeaderPacket: func(hdr *logging.ShortHeader, _ logging.ByteCount, _ logging.ECN, _ *logging.AckFrame, _ []logging.Frame) {
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sentHeaders = append(sentHeaders, hdr)
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},
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ReceivedShortHeaderPacket: func(hdr *logging.ShortHeader, _ logging.ByteCount, _ logging.ECN, _ []logging.Frame) {
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receivedHeaders = append(receivedHeaders, hdr)
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},
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}
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}}),
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)
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require.NoError(t, err)
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defer conn.CloseWithError(0, "")
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serverConn, err := server.Accept(ctx)
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require.NoError(t, err)
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defer serverConn.CloseWithError(0, "")
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serverErrChan := make(chan error, 1)
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go func() {
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str, err := serverConn.OpenUniStream()
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if err != nil {
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serverErrChan <- err
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return
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}
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defer str.Close()
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if _, err := str.Write(PRDataLong); err != nil {
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serverErrChan <- err
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return
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}
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close(serverErrChan)
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}()
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str, err := conn.AcceptUniStream(ctx)
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require.NoError(t, err)
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data, err := io.ReadAll(str)
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require.NoError(t, err)
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require.Equal(t, PRDataLong, data)
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require.NoError(t, conn.CloseWithError(0, ""))
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require.NoError(t, <-serverErrChan)
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keyPhasesSent, keyPhasesReceived := countKeyPhases()
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t.Logf("Used %d key phases on outgoing and %d key phases on incoming packets.", keyPhasesSent, keyPhasesReceived)
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require.Greater(t, keyPhasesReceived, 10)
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require.InDelta(t, keyPhasesSent, keyPhasesReceived, 2)
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}
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