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omit the data length in the last STREAM frame of a retransmission

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This commit is contained in:
Marten Seemann 2018-02-26 21:59:45 +08:00
parent ca7291e8cf
commit a1c9e706b0
2 changed files with 41 additions and 1 deletions
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25
packet_packer_test.go
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@ -809,8 +809,10 @@ var _ = Describe("Packet packer", func() {
sf2 := packets[1].frames[1].(*wire.StreamFrame)
Expect(sf1.StreamID).To(Equal(protocol.StreamID(42)))
Expect(sf1.Offset).To(Equal(protocol.ByteCount(1337)))
Expect(sf1.DataLenPresent).To(BeFalse())
Expect(sf2.StreamID).To(Equal(protocol.StreamID(42)))
Expect(sf2.Offset).To(Equal(protocol.ByteCount(1337) + sf1.DataLen()))
Expect(sf2.DataLenPresent).To(BeFalse())
Expect(sf1.DataLen() + sf2.DataLen()).To(Equal(protocol.MaxPacketSize * 3 / 2))
Expect(packets[0].raw).To(HaveLen(int(protocol.MaxPacketSize)))
})
@ -844,6 +846,29 @@ var _ = Describe("Packet packer", func() {
Expect(len(packets[0].raw) + int(packets[1].frames[1].Length(packer.version))).To(BeNumerically(">", protocol.MaxPacketSize-protocol.MinStreamFrameSize))
})
It("correctly sets the DataLenPresent on STREAM frames", func() {
frames := []wire.Frame{
&wire.StreamFrame{StreamID: 4, Data: []byte("foobar"), DataLenPresent: true},
&wire.StreamFrame{StreamID: 5, Data: []byte("barfoo")},
}
packets, err := packer.PackRetransmission(&ackhandler.Packet{
EncryptionLevel: protocol.EncryptionForwardSecure,
Frames: frames,
})
Expect(err).ToNot(HaveOccurred())
Expect(packets).To(HaveLen(1))
p := packets[0]
Expect(p.frames).To(HaveLen(3))
Expect(p.frames[1]).To(BeAssignableToTypeOf(&wire.StreamFrame{}))
Expect(p.frames[2]).To(BeAssignableToTypeOf(&wire.StreamFrame{}))
sf1 := p.frames[1].(*wire.StreamFrame)
sf2 := p.frames[2].(*wire.StreamFrame)
Expect(sf1.StreamID).To(Equal(protocol.StreamID(4)))
Expect(sf1.DataLenPresent).To(BeTrue())
Expect(sf2.StreamID).To(Equal(protocol.StreamID(5)))
Expect(sf2.DataLenPresent).To(BeFalse())
})
})
Context("packing ACK packets", func() {