uquic/integrationtests/self/tracer_test.go
2022-10-11 16:38:44 +04:00

96 lines
2.9 KiB
Go

package self_test
import (
"bufio"
"bytes"
"context"
"fmt"
"io"
mrand "math/rand"
"net"
"github.com/lucas-clemente/quic-go"
"github.com/lucas-clemente/quic-go/internal/protocol"
"github.com/lucas-clemente/quic-go/internal/utils"
"github.com/lucas-clemente/quic-go/logging"
"github.com/lucas-clemente/quic-go/qlog"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
type customTracer struct{ logging.NullTracer }
func (t *customTracer) TracerForConnection(context.Context, logging.Perspective, logging.ConnectionID) logging.ConnectionTracer {
return &customConnTracer{}
}
type customConnTracer struct{ logging.NullConnectionTracer }
var _ = Describe("Handshake tests", func() {
addTracers := func(pers protocol.Perspective, conf *quic.Config) *quic.Config {
enableQlog := mrand.Int()%3 != 0
enableCustomTracer := mrand.Int()%3 != 0
fmt.Fprintf(GinkgoWriter, "%s using qlog: %t, custom: %t\n", pers, enableQlog, enableCustomTracer)
var tracers []logging.Tracer
if enableQlog {
tracers = append(tracers, qlog.NewTracer(func(p logging.Perspective, connectionID []byte) io.WriteCloser {
if mrand.Int()%2 == 0 { // simulate that a qlog collector might only want to log some connections
fmt.Fprintf(GinkgoWriter, "%s qlog tracer deciding to not trace connection %x\n", p, connectionID)
return nil
}
fmt.Fprintf(GinkgoWriter, "%s qlog tracing connection %x\n", p, connectionID)
return utils.NewBufferedWriteCloser(bufio.NewWriter(&bytes.Buffer{}), io.NopCloser(nil))
}))
}
if enableCustomTracer {
tracers = append(tracers, &customTracer{})
}
c := conf.Clone()
c.Tracer = logging.NewMultiplexedTracer(tracers...)
return c
}
for i := 0; i < 3; i++ {
It("handshakes with a random combination of tracers", func() {
if enableQlog {
Skip("This test sets tracers and won't produce any qlogs.")
}
quicClientConf := addTracers(protocol.PerspectiveClient, getQuicConfig(nil))
quicServerConf := addTracers(protocol.PerspectiveServer, getQuicConfig(nil))
serverChan := make(chan quic.Listener)
go func() {
defer GinkgoRecover()
ln, err := quic.ListenAddr("localhost:0", getTLSConfig(), quicServerConf)
Expect(err).ToNot(HaveOccurred())
serverChan <- ln
conn, err := ln.Accept(context.Background())
Expect(err).ToNot(HaveOccurred())
str, err := conn.OpenUniStream()
Expect(err).ToNot(HaveOccurred())
_, err = str.Write(PRData)
Expect(err).ToNot(HaveOccurred())
Expect(str.Close()).To(Succeed())
}()
ln := <-serverChan
defer ln.Close()
conn, err := quic.DialAddr(
fmt.Sprintf("localhost:%d", ln.Addr().(*net.UDPAddr).Port),
getTLSClientConfig(),
quicClientConf,
)
Expect(err).ToNot(HaveOccurred())
defer conn.CloseWithError(0, "")
str, err := conn.AcceptUniStream(context.Background())
Expect(err).ToNot(HaveOccurred())
data, err := io.ReadAll(str)
Expect(err).ToNot(HaveOccurred())
Expect(data).To(Equal(PRData))
})
}
})