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package packp
import (
"bytes"
"io"
"testing"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/protocol/packp/capability"
. "gopkg.in/check.v1"
)
type UploadPackResponseSuite struct{}
var _ = Suite(&UploadPackResponseSuite{})
func (s *UploadPackResponseSuite) TestDecodeNAK(c *C) {
raw := "0008NAK\nPACK"
req := NewUploadPackRequest()
res := NewUploadPackResponse(req)
defer res.Close()
err := res.Decode(io.NopCloser(bytes.NewBufferString(raw)))
c.Assert(err, IsNil)
pack, err := io.ReadAll(res)
c.Assert(err, IsNil)
c.Assert(pack, DeepEquals, []byte("PACK"))
}
func (s *UploadPackResponseSuite) TestDecodeDepth(c *C) {
raw := "00000008NAK\nPACK"
req := NewUploadPackRequest()
req.Depth = DepthCommits(1)
res := NewUploadPackResponse(req)
defer res.Close()
err := res.Decode(io.NopCloser(bytes.NewBufferString(raw)))
c.Assert(err, IsNil)
pack, err := io.ReadAll(res)
c.Assert(err, IsNil)
c.Assert(pack, DeepEquals, []byte("PACK"))
}
func (s *UploadPackResponseSuite) TestDecodeMalformed(c *C) {
raw := "00000008ACK\nPACK"
req := NewUploadPackRequest()
req.Depth = DepthCommits(1)
res := NewUploadPackResponse(req)
defer res.Close()
err := res.Decode(io.NopCloser(bytes.NewBufferString(raw)))
c.Assert(err, NotNil)
}
// multi_ack isn't fully implemented, this ensures that Decode ignores that fact,
// as in some circumstances that's OK to assume so.
//
// TODO: Review as part of multi_ack implementation.
func (s *UploadPackResponseSuite) TestDecodeMultiACK(c *C) {
req := NewUploadPackRequest()
req.Capabilities.Set(capability.MultiACK)
res := NewUploadPackResponse(req)
defer res.Close()
err := res.Decode(io.NopCloser(bytes.NewBuffer(nil)))
c.Assert(err, IsNil)
}
func (s *UploadPackResponseSuite) TestReadNoDecode(c *C) {
req := NewUploadPackRequest()
req.Capabilities.Set(capability.MultiACK)
res := NewUploadPackResponse(req)
defer res.Close()
n, err := res.Read(nil)
c.Assert(err, Equals, ErrUploadPackResponseNotDecoded)
c.Assert(n, Equals, 0)
}
func (s *UploadPackResponseSuite) TestEncodeNAK(c *C) {
pf := io.NopCloser(bytes.NewBuffer([]byte("[PACK]")))
req := NewUploadPackRequest()
res := NewUploadPackResponseWithPackfile(req, pf)
defer func() { c.Assert(res.Close(), IsNil) }()
b := bytes.NewBuffer(nil)
c.Assert(res.Encode(b), IsNil)
expected := "0008NAK\n[PACK]"
c.Assert(b.String(), Equals, expected)
}
func (s *UploadPackResponseSuite) TestEncodeDepth(c *C) {
pf := io.NopCloser(bytes.NewBuffer([]byte("PACK")))
req := NewUploadPackRequest()
req.Depth = DepthCommits(1)
res := NewUploadPackResponseWithPackfile(req, pf)
defer func() { c.Assert(res.Close(), IsNil) }()
b := bytes.NewBuffer(nil)
c.Assert(res.Encode(b), IsNil)
expected := "00000008NAK\nPACK"
c.Assert(b.String(), Equals, expected)
}
func (s *UploadPackResponseSuite) TestEncodeMultiACK(c *C) {
pf := io.NopCloser(bytes.NewBuffer([]byte("[PACK]")))
req := NewUploadPackRequest()
res := NewUploadPackResponseWithPackfile(req, pf)
defer func() { c.Assert(res.Close(), IsNil) }()
res.ACKs = []plumbing.Hash{
plumbing.NewHash("5dc01c595e6c6ec9ccda4f6f69c131c0dd945f81"),
plumbing.NewHash("5dc01c595e6c6ec9ccda4f6f69c131c0dd945f82"),
}
b := bytes.NewBuffer(nil)
c.Assert(res.Encode(b), NotNil)
}
func FuzzDecoder(f *testing.F) {
f.Add([]byte("0045ACK 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f81\n"))
f.Add([]byte("003aACK5dc01c595e6c6ec9ccda4f6f69c131c0dd945f82 \n0008NAK\n0"))
f.Fuzz(func(t *testing.T, input []byte) {
req := NewUploadPackRequest()
res := NewUploadPackResponse(req)
defer res.Close()
res.Decode(io.NopCloser(bytes.NewReader(input)))
})
}
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