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implement the IETF draft BLOCKED and STREAM_BLOCKED frames

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This commit is contained in:
Marten Seemann
2017-11-02 15:33:13 +07:00
parent 0f1f1c8d41
commit 9f1eb62860
12 changed files with 326 additions and 96 deletions
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64
internal/wire/blocked_frame_test.go
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@@ -4,70 +4,38 @@ import (
"bytes"
"github.com/lucas-clemente/quic-go/internal/protocol"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("BlockedFrame", func() {
var _ = Describe("BLOCKED frame", func() {
Context("when parsing", func() {
Context("in little endian", func() {
It("accepts sample frame", func() {
b := bytes.NewReader([]byte{0x5, 0xef, 0xbe, 0xad, 0xde})
frame, err := ParseBlockedFrame(b, versionLittleEndian)
Expect(err).ToNot(HaveOccurred())
Expect(frame.StreamID).To(Equal(protocol.StreamID(0xdeadbeef)))
})
})
Context("in big endian", func() {
It("accepts sample frame", func() {
b := bytes.NewReader([]byte{0x5, 0xde, 0xad, 0xbe, 0xef})
frame, err := ParseBlockedFrame(b, versionBigEndian)
Expect(err).ToNot(HaveOccurred())
Expect(frame.StreamID).To(Equal(protocol.StreamID(0xdeadbeef)))
})
It("accepts sample frame", func() {
b := bytes.NewReader([]byte{0x08})
_, err := ParseBlockedFrame(b, protocol.VersionWhatever)
Expect(err).ToNot(HaveOccurred())
Expect(b.Len()).To(BeZero())
})
It("errors on EOFs", func() {
data := []byte{0x5, 0xef, 0xbe, 0xad, 0xde}
_, err := ParseBlockedFrame(bytes.NewReader(data), protocol.VersionWhatever)
Expect(err).NotTo(HaveOccurred())
for i := range data {
_, err := ParseBlockedFrame(bytes.NewReader(data[0:i]), protocol.VersionWhatever)
Expect(err).To(HaveOccurred())
}
_, err := ParseBlockedFrame(bytes.NewReader(nil), protocol.VersionWhatever)
Expect(err).To(HaveOccurred())
})
})
Context("when writing", func() {
Context("in little endian", func() {
It("writes a sample frame", func() {
b := &bytes.Buffer{}
frame := BlockedFrame{StreamID: 0x1337}
frame.Write(b, versionLittleEndian)
Expect(b.Bytes()).To(Equal([]byte{0x5, 0x37, 0x13, 0x0, 0x0}))
})
})
Context("in big endian", func() {
It("writes a sample frame", func() {
b := &bytes.Buffer{}
frame := BlockedFrame{StreamID: 0x1337}
frame.Write(b, versionBigEndian)
Expect(b.Bytes()).To(Equal([]byte{0x5, 0x0, 0x0, 0x13, 0x37}))
})
})
It("writes a connection-level Blocked", func() {
It("writes a sample frame", func() {
b := &bytes.Buffer{}
frame := BlockedFrame{StreamID: 0}
frame.Write(b, 0)
Expect(b.Bytes()).To(Equal([]byte{0x5, 0, 0, 0, 0}))
frame := BlockedFrame{}
err := frame.Write(b, protocol.VersionWhatever)
Expect(err).ToNot(HaveOccurred())
Expect(b.Bytes()).To(Equal([]byte{0x08}))
})
It("has the correct min length", func() {
frame := BlockedFrame{StreamID: 3}
Expect(frame.MinLength(0)).To(Equal(protocol.ByteCount(5)))
frame := BlockedFrame{}
Expect(frame.MinLength(versionMaxDataFrame)).To(Equal(protocol.ByteCount(1)))
})
})
})