mirror of
https://github.com/refraction-networking/uquic.git
synced 2025-04-05 05:07:36 +03:00
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package quic
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import (
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"bytes"
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"github.com/lucas-clemente/quic-go/crypto"
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"github.com/lucas-clemente/quic-go/frames"
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"github.com/lucas-clemente/quic-go/protocol"
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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("Packet packer", func() {
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var (
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packer *packetPacker
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)
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BeforeEach(func() {
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aead := &crypto.NullAEAD{}
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packer = &packetPacker{aead: aead}
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})
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It("returns nil when no packet is queued", func() {
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p, err := packer.PackPacket()
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Expect(p).To(BeNil())
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Expect(err).ToNot(HaveOccurred())
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})
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It("packs single packets", func() {
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f := &frames.AckFrame{}
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packer.AddFrame(f)
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p, err := packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(err).ToNot(HaveOccurred())
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b := &bytes.Buffer{}
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f.Write(b, 1, 6)
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Expect(p.payload).To(Equal(b.Bytes()))
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Expect(p.raw).To(ContainSubstring(string(b.Bytes())))
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})
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It("packs multiple frames into single packet", func() {
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f1 := &frames.AckFrame{LargestObserved: 1}
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f2 := &frames.AckFrame{LargestObserved: 2}
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packer.AddFrame(f1)
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packer.AddFrame(f2)
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p, err := packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(err).ToNot(HaveOccurred())
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b := &bytes.Buffer{}
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f1.Write(b, 2, 6)
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f2.Write(b, 2, 6)
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Expect(p.payload).To(Equal(b.Bytes()))
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Expect(p.raw).To(ContainSubstring(string(b.Bytes())))
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})
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It("packs many normal frames into 2 packets", func() {
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f := &frames.AckFrame{LargestObserved: 1}
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b := &bytes.Buffer{}
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f.Write(b, 3, 6)
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for i := 0; i <= (protocol.MaxFrameSize-1)/b.Len()+1; i++ {
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packer.AddFrame(f)
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}
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p, err := packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(err).ToNot(HaveOccurred())
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Expect(len(p.payload) % b.Len()).To(BeZero())
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Expect(p.raw).To(ContainSubstring(string(b.Bytes())))
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p, err = packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(err).ToNot(HaveOccurred())
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Expect(p.payload).To(Equal(b.Bytes()))
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Expect(p.raw).To(ContainSubstring(string(b.Bytes())))
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})
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It("splits stream frames", func() {
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f := &frames.StreamFrame{
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Data: bytes.Repeat([]byte{'f'}, protocol.MaxFrameSize),
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Offset: 1,
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}
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b := &bytes.Buffer{}
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f.Write(b, 4, 6)
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packer.AddFrame(f)
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p, err := packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(len(p.raw)).To(Equal(protocol.MaxPacketSize))
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Expect(err).ToNot(HaveOccurred())
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p, err = packer.PackPacket()
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Expect(p).ToNot(BeNil())
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Expect(err).ToNot(HaveOccurred())
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})
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})
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