57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
package wire
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import (
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"bytes"
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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("MAX_DATA frame", func() {
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Context("when parsing", func() {
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It("accepts sample frame", func() {
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data := []byte{0x4}
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data = append(data, encodeVarInt(0xdecafbad123456)...) // byte offset
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b := bytes.NewReader(data)
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frame, err := ParseMaxDataFrame(b, versionBigEndian)
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Expect(err).ToNot(HaveOccurred())
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Expect(frame.ByteOffset).To(Equal(protocol.ByteCount(0xdecafbad123456)))
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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{0x4}
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data = append(data, encodeVarInt(0xdecafbad1234567)...) // byte offset
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_, err := ParseMaxDataFrame(bytes.NewReader(data), versionIETFFrames)
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Expect(err).NotTo(HaveOccurred())
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for i := range data {
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_, err := ParseMaxDataFrame(bytes.NewReader(data[0:i]), versionIETFFrames)
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Expect(err).To(HaveOccurred())
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}
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})
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})
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Context("writing", func() {
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It("has proper min length", func() {
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f := &MaxDataFrame{
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ByteOffset: 0xdeadbeef,
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}
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Expect(f.MinLength(versionIETFFrames)).To(Equal(1 + utils.VarIntLen(0xdeadbeef)))
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})
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It("writes a MAX_DATA frame", func() {
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b := &bytes.Buffer{}
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f := &MaxDataFrame{
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ByteOffset: 0xdeadbeefcafe,
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}
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err := f.Write(b, versionIETFFrames)
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Expect(err).ToNot(HaveOccurred())
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expected := []byte{0x4}
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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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})
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})
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