mirror of
https://github.com/refraction-networking/uquic.git
synced 2025-04-04 20:57:36 +03:00
79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
package wire
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import (
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"bytes"
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"io"
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"github.com/lucas-clemente/quic-go/internal/protocol"
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"github.com/lucas-clemente/quic-go/internal/utils"
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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("STREAMS_BLOCKED frame", func() {
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Context("parsing", func() {
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It("accepts a frame for bidirectional streams", func() {
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expected := []byte{0xa}
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expected = append(expected, encodeVarInt(0x1337)...)
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b := bytes.NewReader(expected)
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f, err := parseStreamsBlockedFrame(b, protocol.VersionWhatever)
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Expect(err).ToNot(HaveOccurred())
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Expect(f.Type).To(Equal(protocol.StreamTypeBidi))
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Expect(f.StreamLimit).To(BeEquivalentTo(0x1337))
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Expect(b.Len()).To(BeZero())
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})
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It("accepts a frame for unidirectional streams", func() {
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expected := []byte{0xb}
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expected = append(expected, encodeVarInt(0x7331)...)
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b := bytes.NewReader(expected)
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f, err := parseStreamsBlockedFrame(b, protocol.VersionWhatever)
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Expect(err).ToNot(HaveOccurred())
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Expect(f.Type).To(Equal(protocol.StreamTypeUni))
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Expect(f.StreamLimit).To(BeEquivalentTo(0x7331))
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Expect(b.Len()).To(BeZero())
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})
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It("errors on EOFs", func() {
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data := []byte{0xa}
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data = append(data, encodeVarInt(0x12345678)...)
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_, err := parseStreamsBlockedFrame(bytes.NewReader(data), versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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for i := range data {
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_, err := parseStreamsBlockedFrame(bytes.NewReader(data[:i]), versionIETFFrames)
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Expect(err).To(MatchError(io.EOF))
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}
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})
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})
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Context("writing", func() {
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It("writes a frame for bidirectional streams", func() {
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b := &bytes.Buffer{}
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f := StreamsBlockedFrame{
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Type: protocol.StreamTypeBidi,
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StreamLimit: 0xdeadbeefcafe,
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}
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Expect(f.Write(b, protocol.VersionWhatever)).To(Succeed())
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expected := []byte{0xa}
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expected = append(expected, encodeVarInt(0xdeadbeefcafe)...)
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Expect(b.Bytes()).To(Equal(expected))
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})
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It("writes a frame for unidirectional streams", func() {
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b := &bytes.Buffer{}
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f := StreamsBlockedFrame{
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Type: protocol.StreamTypeUni,
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StreamLimit: 0xdeadbeefcafe,
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}
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Expect(f.Write(b, protocol.VersionWhatever)).To(Succeed())
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expected := []byte{0xb}
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expected = append(expected, encodeVarInt(0xdeadbeefcafe)...)
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Expect(b.Bytes()).To(Equal(expected))
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})
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It("has the correct min length", func() {
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frame := StreamsBlockedFrame{StreamLimit: 0x123456}
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Expect(frame.Length(0)).To(Equal(protocol.ByteCount(1) + utils.VarIntLen(0x123456)))
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})
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})
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})
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