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https://github.com/refraction-networking/uquic.git
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52c3e6e863
All ACK ranges are now saved in the AckRanges slices. This eliminates a bunch of special cases for ACKs that don't report any packets missing.
55 lines
2.3 KiB
Go
55 lines
2.3 KiB
Go
package ackhandler
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import (
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"github.com/lucas-clemente/quic-go/internal/wire"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var _ = Describe("StopWaitingManager", func() {
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var manager *stopWaitingManager
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BeforeEach(func() {
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manager = &stopWaitingManager{}
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})
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It("returns nil in the beginning", func() {
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Expect(manager.GetStopWaitingFrame(false)).To(BeNil())
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Expect(manager.GetStopWaitingFrame(true)).To(BeNil())
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})
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It("returns a StopWaitingFrame, when a new ACK arrives", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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Expect(manager.GetStopWaitingFrame(false)).To(Equal(&wire.StopWaitingFrame{LeastUnacked: 11}))
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})
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It("does not decrease the LeastUnacked", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 9}}})
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Expect(manager.GetStopWaitingFrame(false)).To(Equal(&wire.StopWaitingFrame{LeastUnacked: 11}))
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})
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It("does not send the same StopWaitingFrame twice", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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Expect(manager.GetStopWaitingFrame(false)).ToNot(BeNil())
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Expect(manager.GetStopWaitingFrame(false)).To(BeNil())
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})
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It("gets the same StopWaitingFrame twice, if forced", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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Expect(manager.GetStopWaitingFrame(false)).ToNot(BeNil())
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Expect(manager.GetStopWaitingFrame(true)).ToNot(BeNil())
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Expect(manager.GetStopWaitingFrame(true)).ToNot(BeNil())
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})
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It("increases the LeastUnacked when a retransmission is queued", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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manager.QueuedRetransmissionForPacketNumber(20)
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Expect(manager.GetStopWaitingFrame(false)).To(Equal(&wire.StopWaitingFrame{LeastUnacked: 21}))
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})
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It("does not decrease the LeastUnacked when a retransmission is queued", func() {
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manager.ReceivedAck(&wire.AckFrame{AckRanges: []wire.AckRange{{Smallest: 1, Largest: 10}}})
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manager.QueuedRetransmissionForPacketNumber(9)
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Expect(manager.GetStopWaitingFrame(false)).To(Equal(&wire.StopWaitingFrame{LeastUnacked: 11}))
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})
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})
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