github.com/metacubex/quic-go@v0.44.1-0.20240520163451-20b689a59136/internal/wire/stop_sending_frame_test.go (about)

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