forked from quic-go/quic-go
109 lines
3.4 KiB
Go
109 lines
3.4 KiB
Go
package self_test
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import (
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"bufio"
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"bytes"
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"context"
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"fmt"
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"io"
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mrand "math/rand/v2"
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"sync"
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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/protocol"
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"github.com/quic-go/quic-go/internal/utils"
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"github.com/quic-go/quic-go/logging"
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"github.com/quic-go/quic-go/metrics"
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"github.com/quic-go/quic-go/qlog"
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"github.com/stretchr/testify/require"
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)
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func TestTracerHandshake(t *testing.T) {
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addTracers := func(pers protocol.Perspective, conf *quic.Config) *quic.Config {
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enableQlog := mrand.Int()%2 != 0
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enableMetrics := mrand.Int()%2 != 0
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enableCustomTracer := mrand.Int()%2 != 0
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t.Logf("%s using qlog: %t, metrics: %t, custom: %t", pers, enableQlog, enableMetrics, enableCustomTracer)
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var tracerConstructors []func(context.Context, logging.Perspective, quic.ConnectionID) *logging.ConnectionTracer
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if enableQlog {
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tracerConstructors = append(tracerConstructors, func(_ context.Context, p logging.Perspective, connID quic.ConnectionID) *logging.ConnectionTracer {
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if mrand.Int()%2 == 0 { // simulate that a qlog collector might only want to log some connections
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t.Logf("%s qlog tracer deciding to not trace connection %s", p, connID)
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return nil
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}
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t.Logf("%s qlog tracing connection %s", p, connID)
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return qlog.NewConnectionTracer(utils.NewBufferedWriteCloser(bufio.NewWriter(&bytes.Buffer{}), io.NopCloser(nil)), p, connID)
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})
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}
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if enableMetrics {
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tracerConstructors = append(tracerConstructors, metrics.DefaultConnectionTracer)
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}
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if enableCustomTracer {
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tracerConstructors = append(tracerConstructors, func(context.Context, logging.Perspective, quic.ConnectionID) *logging.ConnectionTracer {
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return &logging.ConnectionTracer{}
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})
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}
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c := conf.Clone()
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c.Tracer = func(ctx context.Context, p logging.Perspective, connID quic.ConnectionID) *logging.ConnectionTracer {
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tracers := make([]*logging.ConnectionTracer, 0, len(tracerConstructors))
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for _, c := range tracerConstructors {
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if tr := c(ctx, p, connID); tr != nil {
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tracers = append(tracers, tr)
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}
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}
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return logging.NewMultiplexedConnectionTracer(tracers...)
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}
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return c
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}
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for i := 0; i < 3; i++ {
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t.Run(fmt.Sprintf("run %d", i+1), func(t *testing.T) {
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if enableQlog {
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t.Skip("This test sets tracers and won't produce any qlogs.")
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}
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quicClientConf := addTracers(protocol.PerspectiveClient, getQuicConfig(nil))
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quicServerConf := addTracers(protocol.PerspectiveServer, getQuicConfig(nil))
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ln, err := quic.Listen(newUDPConnLocalhost(t), getTLSConfig(), quicServerConf)
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require.NoError(t, err)
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t.Cleanup(func() { require.NoError(t, ln.Close()) })
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var wg sync.WaitGroup
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for j := 0; j < 3; j++ {
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wg.Add(1)
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go func() {
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defer wg.Done()
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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(ctx, newUDPConnLocalhost(t), ln.Addr(), getTLSClientConfig(), quicClientConf)
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require.NoError(t, err)
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defer conn.CloseWithError(0, "")
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sconn, err := ln.Accept(ctx)
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if err != nil {
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return
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}
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sstr, err := sconn.OpenUniStream()
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require.NoError(t, err)
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_, err = sstr.Write(PRData)
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require.NoError(t, err)
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require.NoError(t, sstr.Close())
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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, PRData, data)
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}()
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}
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wg.Wait()
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})
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}
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}
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