| package sideband |
| |
| import ( |
| "bytes" |
| "errors" |
| "io" |
| "io/ioutil" |
| "testing" |
| |
| "gopkg.in/src-d/go-git.v4/plumbing/format/pktline" |
| |
| . "gopkg.in/check.v1" |
| ) |
| |
| func Test(t *testing.T) { TestingT(t) } |
| |
| type SidebandSuite struct{} |
| |
| var _ = Suite(&SidebandSuite{}) |
| |
| func (s *SidebandSuite) TestDecode(c *C) { |
| expected := []byte("abcdefghijklmnopqrstuvwxyz") |
| |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode(PackData.WithPayload(expected[0:8])) |
| e.Encode(ProgressMessage.WithPayload([]byte{'F', 'O', 'O', '\n'})) |
| e.Encode(PackData.WithPayload(expected[8:16])) |
| e.Encode(PackData.WithPayload(expected[16:26])) |
| |
| content := make([]byte, 26) |
| d := NewDemuxer(Sideband64k, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, IsNil) |
| c.Assert(n, Equals, 26) |
| c.Assert(content, DeepEquals, expected) |
| } |
| |
| func (s *SidebandSuite) TestDecodeMoreThanContain(c *C) { |
| expected := []byte("abcdefghijklmnopqrstuvwxyz") |
| |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode(PackData.WithPayload(expected)) |
| |
| content := make([]byte, 42) |
| d := NewDemuxer(Sideband64k, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, Equals, io.ErrUnexpectedEOF) |
| c.Assert(n, Equals, 26) |
| c.Assert(content[0:26], DeepEquals, expected) |
| } |
| |
| func (s *SidebandSuite) TestDecodeWithError(c *C) { |
| expected := []byte("abcdefghijklmnopqrstuvwxyz") |
| |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode(PackData.WithPayload(expected[0:8])) |
| e.Encode(ErrorMessage.WithPayload([]byte{'F', 'O', 'O', '\n'})) |
| e.Encode(PackData.WithPayload(expected[8:16])) |
| e.Encode(PackData.WithPayload(expected[16:26])) |
| |
| content := make([]byte, 26) |
| d := NewDemuxer(Sideband64k, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, ErrorMatches, "unexpected error: FOO\n") |
| c.Assert(n, Equals, 8) |
| c.Assert(content[0:8], DeepEquals, expected[0:8]) |
| } |
| |
| type mockReader struct{} |
| |
| func (r *mockReader) Read([]byte) (int, error) { return 0, errors.New("foo") } |
| |
| func (s *SidebandSuite) TestDecodeFromFailingReader(c *C) { |
| content := make([]byte, 26) |
| d := NewDemuxer(Sideband64k, &mockReader{}) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, ErrorMatches, "foo") |
| c.Assert(n, Equals, 0) |
| } |
| |
| func (s *SidebandSuite) TestDecodeWithProgress(c *C) { |
| expected := []byte("abcdefghijklmnopqrstuvwxyz") |
| |
| input := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(input) |
| e.Encode(PackData.WithPayload(expected[0:8])) |
| e.Encode(ProgressMessage.WithPayload([]byte{'F', 'O', 'O', '\n'})) |
| e.Encode(PackData.WithPayload(expected[8:16])) |
| e.Encode(PackData.WithPayload(expected[16:26])) |
| |
| output := bytes.NewBuffer(nil) |
| content := make([]byte, 26) |
| d := NewDemuxer(Sideband64k, input) |
| d.Progress = output |
| |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, IsNil) |
| c.Assert(n, Equals, 26) |
| c.Assert(content, DeepEquals, expected) |
| |
| progress, err := ioutil.ReadAll(output) |
| c.Assert(err, IsNil) |
| c.Assert(progress, DeepEquals, []byte{'F', 'O', 'O', '\n'}) |
| } |
| |
| func (s *SidebandSuite) TestDecodeWithUnknownChannel(c *C) { |
| |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode([]byte{'4', 'F', 'O', 'O', '\n'}) |
| |
| content := make([]byte, 26) |
| d := NewDemuxer(Sideband64k, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, ErrorMatches, "unknown channel 4FOO\n") |
| c.Assert(n, Equals, 0) |
| } |
| |
| func (s *SidebandSuite) TestDecodeWithPending(c *C) { |
| expected := []byte("abcdefghijklmnopqrstuvwxyz") |
| |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode(PackData.WithPayload(expected[0:8])) |
| e.Encode(PackData.WithPayload(expected[8:16])) |
| e.Encode(PackData.WithPayload(expected[16:26])) |
| |
| content := make([]byte, 13) |
| d := NewDemuxer(Sideband64k, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, IsNil) |
| c.Assert(n, Equals, 13) |
| c.Assert(content, DeepEquals, expected[0:13]) |
| |
| n, err = d.Read(content) |
| c.Assert(err, IsNil) |
| c.Assert(n, Equals, 13) |
| c.Assert(content, DeepEquals, expected[13:26]) |
| } |
| |
| func (s *SidebandSuite) TestDecodeErrMaxPacked(c *C) { |
| buf := bytes.NewBuffer(nil) |
| e := pktline.NewEncoder(buf) |
| e.Encode(PackData.WithPayload(bytes.Repeat([]byte{'0'}, MaxPackedSize+1))) |
| |
| content := make([]byte, 13) |
| d := NewDemuxer(Sideband, buf) |
| n, err := io.ReadFull(d, content) |
| c.Assert(err, Equals, ErrMaxPackedExceeded) |
| c.Assert(n, Equals, 0) |
| |
| } |