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add integration test for the retransmission of CONNECTION_CLOSE packets
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package self_test | ||
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import ( | ||
"context" | ||
"fmt" | ||
"net" | ||
"time" | ||
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"github.com/lucas-clemente/quic-go/internal/protocol" | ||
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"github.com/lucas-clemente/quic-go" | ||
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quicproxy "github.com/lucas-clemente/quic-go/integrationtests/tools/proxy" | ||
"github.com/lucas-clemente/quic-go/internal/utils" | ||
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. "github.com/onsi/ginkgo" | ||
. "github.com/onsi/gomega" | ||
) | ||
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var _ = Describe("Connection ID lengths tests", func() { | ||
for _, v := range protocol.SupportedVersions { | ||
version := v | ||
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Context(fmt.Sprintf("with QUIC version %s", version), func() { | ||
It("retransmits the CONNECTION_CLOSE packet", func() { | ||
server, err := quic.ListenAddr( | ||
"localhost:0", | ||
getTLSConfig(), | ||
getQuicConfig(&quic.Config{ | ||
DisablePathMTUDiscovery: true, | ||
}), | ||
) | ||
Expect(err).ToNot(HaveOccurred()) | ||
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var drop utils.AtomicBool | ||
dropped := make(chan []byte, 100) | ||
proxy, err := quicproxy.NewQuicProxy("localhost:0", &quicproxy.Opts{ | ||
RemoteAddr: fmt.Sprintf("localhost:%d", server.Addr().(*net.UDPAddr).Port), | ||
DelayPacket: func(dir quicproxy.Direction, _ []byte) time.Duration { | ||
return 5 * time.Millisecond // 10ms RTT | ||
}, | ||
DropPacket: func(dir quicproxy.Direction, b []byte) bool { | ||
if drop := drop.Get(); drop && dir == quicproxy.DirectionOutgoing { | ||
dropped <- b | ||
return true | ||
} | ||
return false | ||
}, | ||
}) | ||
Expect(err).ToNot(HaveOccurred()) | ||
defer proxy.Close() | ||
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conn, err := quic.DialAddr( | ||
fmt.Sprintf("localhost:%d", proxy.LocalPort()), | ||
getTLSClientConfig(), | ||
getQuicConfig(&quic.Config{Versions: []protocol.VersionNumber{version}}), | ||
) | ||
Expect(err).ToNot(HaveOccurred()) | ||
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sconn, err := server.Accept(context.Background()) | ||
Expect(err).ToNot(HaveOccurred()) | ||
time.Sleep(100 * time.Millisecond) | ||
drop.Set(true) | ||
sconn.CloseWithError(1337, "closing") | ||
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// send 100 packets | ||
for i := 0; i < 100; i++ { | ||
str, err := conn.OpenStream() | ||
Expect(err).ToNot(HaveOccurred()) | ||
_, err = str.Write([]byte("foobar")) | ||
Expect(err).ToNot(HaveOccurred()) | ||
time.Sleep(time.Millisecond) | ||
} | ||
// Expect retransmissions of the CONNECTION_CLOSE for the | ||
// 1st, 2nd, 4th, 8th, 16th, 32th, 64th packet: 7 in total (+1 for the original packet) | ||
Eventually(dropped).Should(HaveLen(8)) | ||
close(dropped) | ||
first := <-dropped | ||
for p := range dropped { | ||
Expect(p).To(Equal(first)) // these packets are all identical | ||
} | ||
}) | ||
}) | ||
} | ||
}) |