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always delete packets from packetHistory when receiving a StopWaiting

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in new AckHandler

fixes #239
This commit is contained in:
Marten Seemann 2016-08-02 13:38:13 +07:00
parent 955234487b
commit af3f69c0f1
2 changed files with 23 additions and 8 deletions
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22
ackhandler/received_packet_handler_test.go
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@ -229,7 +229,7 @@ var _ = Describe("receivedPacketHandler", func() {
Expect(ack.AckRanges).To(BeEmpty())
})
It("does send old ACK ranges after receiving a StopWaiting", func() {
It("doesn't send old ACK ranges after receiving a StopWaiting", func() {
err := handler.ReceivedPacket(5, false)
Expect(err).ToNot(HaveOccurred())
err = handler.ReceivedPacket(10, false)
@ -240,12 +240,30 @@ var _ = Describe("receivedPacketHandler", func() {
Expect(err).ToNot(HaveOccurred())
err = handler.ReceivedStopWaiting(&frames.StopWaitingFrame{LeastUnacked: protocol.PacketNumber(11)})
Expect(err).ToNot(HaveOccurred())
ack, _ := handler.GetAckFrame(true)
ack, err := handler.GetAckFrame(true)
Expect(err).ToNot(HaveOccurred())
Expect(ack).ToNot(BeNil())
Expect(ack.LargestAcked).To(Equal(protocol.PacketNumber(12)))
Expect(ack.LowestAcked).To(Equal(protocol.PacketNumber(11)))
Expect(ack.HasMissingRanges()).To(BeFalse())
})
It("deletes packets from the packetHistory after receiving a StopWaiting, after continously received packets", func() {
for i := 1; i <= 12; i++ {
err := handler.ReceivedPacket(protocol.PacketNumber(i), false)
Expect(err).ToNot(HaveOccurred())
}
err := handler.ReceivedStopWaiting(&frames.StopWaitingFrame{LeastUnacked: protocol.PacketNumber(6)})
Expect(err).ToNot(HaveOccurred())
Expect(handler.largestInOrderObserved).To(Equal(protocol.PacketNumber(12)))
// check that the packets were deleted from the receivedPacketHistory by checking the values in an ACK frame
ack, err := handler.GetAckFrame(true)
Expect(err).ToNot(HaveOccurred())
Expect(ack).ToNot(BeNil())
Expect(ack.LargestAcked).To(Equal(protocol.PacketNumber(12)))
Expect(ack.LowestAcked).To(Equal(protocol.PacketNumber(6)))
Expect(ack.HasMissingRanges()).To(BeFalse())
})
})
Context("Garbage Collector", func() {