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implement parsing and writing of the H3_DATAGRAM setting

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This commit is contained in:
Marten Seemann 2020-12-21 10:44:36 +07:00
parent f68dfd5c3b
commit aaf1d381d3
2 changed files with 85 additions and 11 deletions
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55
http3/frames_test.go
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@ -2,6 +2,7 @@ package http3
import (
"bytes"
"fmt"
"io"
"github.com/lucas-clemente/quic-go/internal/utils"
@ -84,8 +85,8 @@ var _ = Describe("Frames", func() {
Expect(err).ToNot(HaveOccurred())
Expect(frame).To(BeAssignableToTypeOf(&settingsFrame{}))
sf := frame.(*settingsFrame)
Expect(sf.settings).To(HaveKeyWithValue(uint64(13), uint64(37)))
Expect(sf.settings).To(HaveKeyWithValue(uint64(0xdead), uint64(0xbeef)))
Expect(sf.other).To(HaveKeyWithValue(uint64(13), uint64(37)))
Expect(sf.other).To(HaveKeyWithValue(uint64(0xdead), uint64(0xbeef)))
})
It("rejects duplicate settings", func() {
@ -101,7 +102,7 @@ var _ = Describe("Frames", func() {
})
It("writes", func() {
sf := &settingsFrame{settings: map[uint64]uint64{
sf := &settingsFrame{other: map[uint64]uint64{
1: 2,
99: 999,
13: 37,
@ -114,7 +115,7 @@ var _ = Describe("Frames", func() {
})
It("errors on EOF", func() {
sf := &settingsFrame{settings: map[uint64]uint64{
sf := &settingsFrame{other: map[uint64]uint64{
13: 37,
0xdeadbeef: 0xdecafbad,
}}
@ -132,5 +133,51 @@ var _ = Describe("Frames", func() {
Expect(err).To(MatchError(io.EOF))
}
})
Context("H3_DATAGRAM", func() {
It("reads the H3_DATAGRAM value", func() {
settings := appendVarInt(nil, settingDatagram)
settings = appendVarInt(settings, 1)
data := appendVarInt(nil, 4) // type byte
data = appendVarInt(data, uint64(len(settings)))
data = append(data, settings...)
f, err := parseNextFrame(bytes.NewReader(data))
Expect(err).ToNot(HaveOccurred())
Expect(f).To(BeAssignableToTypeOf(&settingsFrame{}))
sf := f.(*settingsFrame)
Expect(sf.Datagram).To(BeTrue())
})
It("rejects duplicate H3_DATAGRAM entries", func() {
settings := appendVarInt(nil, settingDatagram)
settings = appendVarInt(settings, 1)
settings = appendVarInt(settings, settingDatagram)
settings = appendVarInt(settings, 1)
data := appendVarInt(nil, 4) // type byte
data = appendVarInt(data, uint64(len(settings)))
data = append(data, settings...)
_, err := parseNextFrame(bytes.NewReader(data))
Expect(err).To(MatchError(fmt.Sprintf("duplicate setting: %d", settingDatagram)))
})
It("rejects invalid values for the H3_DATAGRAM entry", func() {
settings := appendVarInt(nil, settingDatagram)
settings = appendVarInt(settings, 1337)
data := appendVarInt(nil, 4) // type byte
data = appendVarInt(data, uint64(len(settings)))
data = append(data, settings...)
_, err := parseNextFrame(bytes.NewReader(data))
Expect(err).To(MatchError("invalid value for H3_DATAGRAM: 1337"))
})
It("writes the H3_DATAGRAM setting", func() {
sf := &settingsFrame{Datagram: true}
buf := &bytes.Buffer{}
sf.Write(buf)
frame, err := parseNextFrame(buf)
Expect(err).ToNot(HaveOccurred())
Expect(frame).To(Equal(sf))
})
})
})
})