github.com/MerlinKodo/quic-go@v0.39.2/internal/wire/stop_sending_frame_test.go (about)

     1  package wire
     2  
     3  import (
     4  	"bytes"
     5  	"io"
     6  
     7  	"github.com/MerlinKodo/quic-go/internal/protocol"
     8  	"github.com/MerlinKodo/quic-go/internal/qerr"
     9  	"github.com/MerlinKodo/quic-go/quicvarint"
    10  
    11  	. "github.com/onsi/ginkgo/v2"
    12  	. "github.com/onsi/gomega"
    13  )
    14  
    15  var _ = Describe("STOP_SENDING frame", func() {
    16  	Context("when parsing", func() {
    17  		It("parses a sample frame", func() {
    18  			data := encodeVarInt(0xdecafbad)             // stream ID
    19  			data = append(data, encodeVarInt(0x1337)...) // error code
    20  			b := bytes.NewReader(data)
    21  			frame, err := parseStopSendingFrame(b, protocol.Version1)
    22  			Expect(err).ToNot(HaveOccurred())
    23  			Expect(frame.StreamID).To(Equal(protocol.StreamID(0xdecafbad)))
    24  			Expect(frame.ErrorCode).To(Equal(qerr.StreamErrorCode(0x1337)))
    25  			Expect(b.Len()).To(BeZero())
    26  		})
    27  
    28  		It("errors on EOFs", func() {
    29  			data := encodeVarInt(0xdecafbad)               // stream ID
    30  			data = append(data, encodeVarInt(0x123456)...) // error code
    31  			b := bytes.NewReader(data)
    32  			_, err := parseStopSendingFrame(b, protocol.Version1)
    33  			Expect(err).NotTo(HaveOccurred())
    34  			for i := range data {
    35  				_, err := parseStopSendingFrame(bytes.NewReader(data[:i]), protocol.Version1)
    36  				Expect(err).To(MatchError(io.EOF))
    37  			}
    38  		})
    39  	})
    40  
    41  	Context("when writing", func() {
    42  		It("writes", func() {
    43  			frame := &StopSendingFrame{
    44  				StreamID:  0xdeadbeefcafe,
    45  				ErrorCode: 0xdecafbad,
    46  			}
    47  			b, err := frame.Append(nil, protocol.Version1)
    48  			Expect(err).ToNot(HaveOccurred())
    49  			expected := []byte{stopSendingFrameType}
    50  			expected = append(expected, encodeVarInt(0xdeadbeefcafe)...)
    51  			expected = append(expected, encodeVarInt(0xdecafbad)...)
    52  			Expect(b).To(Equal(expected))
    53  		})
    54  
    55  		It("has the correct min length", func() {
    56  			frame := &StopSendingFrame{
    57  				StreamID:  0xdeadbeef,
    58  				ErrorCode: 0x1234567,
    59  			}
    60  			Expect(frame.Length(protocol.Version1)).To(Equal(1 + quicvarint.Len(0xdeadbeef) + quicvarint.Len(0x1234567)))
    61  		})
    62  	})
    63  })