forked from quic-go/quic-go
7c1ce0efe2
* ackhandler: implement a lost packet tracker * logging: add ConnectionTracer.DetectedSpuriousLoss event * ackhandler: detect spurious losses * qlog: add support for logging spurious packet loss * ackhandler: delete lost packets after detecting spurios loss * guard against slice index underflow
76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
package ackhandler
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import (
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"maps"
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"testing"
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"time"
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"github.com/quic-go/quic-go/internal/monotime"
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"github.com/quic-go/quic-go/internal/protocol"
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"github.com/stretchr/testify/require"
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)
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func TestLostPacketTracker(t *testing.T) {
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lt := newLostPacketTracker(4)
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start := monotime.Now()
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lt.Add(1, start)
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lt.Add(5, start.Add(time.Second))
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lt.Add(8, start.Add(2*time.Second))
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require.Equal(t, map[protocol.PacketNumber]monotime.Time{
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1: start,
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5: start.Add(time.Second),
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8: start.Add(2 * time.Second),
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}, maps.Collect(lt.All()))
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// Lose 2 more packets. The first one should be removed.
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lt.Add(10, start.Add(3*time.Second))
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lt.Add(11, start.Add(4*time.Second))
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require.Equal(t, map[protocol.PacketNumber]monotime.Time{
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5: start.Add(time.Second),
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8: start.Add(2 * time.Second),
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10: start.Add(3 * time.Second),
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11: start.Add(4 * time.Second),
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}, maps.Collect(lt.All()))
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lt.Delete(5)
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lt.Delete(10)
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require.Equal(t, map[protocol.PacketNumber]monotime.Time{
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8: start.Add(2 * time.Second),
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11: start.Add(4 * time.Second),
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}, maps.Collect(lt.All()))
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}
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func TestLostPacketTrackerDeleteBefore(t *testing.T) {
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lt := newLostPacketTracker(4)
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trackedPackets := func(lt *lostPacketTracker) []protocol.PacketNumber {
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var pns []protocol.PacketNumber
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for pn := range lt.All() {
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pns = append(pns, pn)
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}
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return pns
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}
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start := monotime.Now()
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lt.Add(1, start)
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lt.Add(5, start.Add(time.Second))
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lt.Add(8, start.Add(2*time.Second))
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lt.Add(10, start.Add(3*time.Second))
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require.Equal(t, []protocol.PacketNumber{1, 5, 8, 10}, trackedPackets(lt))
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lt.DeleteBefore(start) // this should be a no-op
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require.Equal(t, []protocol.PacketNumber{1, 5, 8, 10}, trackedPackets(lt))
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lt.DeleteBefore(start.Add(2 * time.Second))
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require.Equal(t, []protocol.PacketNumber{8, 10}, trackedPackets(lt))
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lt.DeleteBefore(start.Add(time.Second * 5 / 2))
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require.Equal(t, []protocol.PacketNumber{10}, trackedPackets(lt))
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lt.DeleteBefore(start.Add(time.Hour))
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require.Empty(t, trackedPackets(lt))
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}
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