forked from quic-go/quic-go
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
package frames
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import (
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"bytes"
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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("AckFrame", func() {
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Context("when parsing", func() {
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It("accepts sample frame", func() {
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b := bytes.NewReader([]byte{0x40, 0xA4, 0x03, 0x23, 0x45, 0x01, 0x02, 0xFF, 0xEE, 0xDD, 0xCC})
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frame, err := ParseAckFrame(b)
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Expect(err).ToNot(HaveOccurred())
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Expect(frame.Entropy).To(Equal(byte(0xA4)))
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Expect(frame.LargestObserved).To(Equal(protocol.PacketNumber(0x03)))
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Expect(frame.DelayTime).To(Equal(uint16(0x4523)))
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Expect(b.Len()).To(Equal(0))
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})
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It("parses a frame with a 48 bit packet number", func() {
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b := bytes.NewReader([]byte{0x4C, 0xA4, 0x37, 0x13, 0xAD, 0xFB, 0xCA, 0xDE, 0x23, 0x45, 0x01, 0x02, 0xFF, 0xEE, 0xDD, 0xCC})
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frame, err := ParseAckFrame(b)
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Expect(err).ToNot(HaveOccurred())
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Expect(frame.LargestObserved).To(Equal(protocol.PacketNumber(0xDECAFBAD1337)))
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Expect(b.Len()).To(Equal(0))
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})
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It("completely parses a frame with multiple timestamps", func() {
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b := bytes.NewReader([]byte{0x40, 0xA4, 0x03, 0x23, 0x45, 0x03, 0x02, 0xFF, 0xEE, 0xDD, 0xCC, 0x12, 0x34, 0x56, 0x78, 0x90, 0xA0})
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_, err := ParseAckFrame(b)
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Expect(err).ToNot(HaveOccurred())
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Expect(b.Len()).To(Equal(0))
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})
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})
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Context("when writing", func() {
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It("writes simple frames", func() {
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b := &bytes.Buffer{}
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(&AckFrame{
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Entropy: 2,
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LargestObserved: 1,
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}).Write(b)
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Expect(b.Bytes()).To(Equal([]byte{0x48, 0x02, 0x01, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0}))
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})
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})
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})
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