func (as *assertsSuite) TestDecoderHappyWithTrailerDoubleNewlines(c *C) {
streams := []string{
exampleBodyAndExtraHeaders,
exampleEmptyBody2NlNl,
exampleEmptyBodyAllDefaults,
}
for _, streamData := range streams {
stream := bytes.NewBufferString(streamData)
if strings.HasSuffix(streamData, "\n") {
stream.WriteString("\n")
} else {
stream.WriteString("\n\n")
}
decoder := asserts.NewDecoderStressed(stream, 16, 1024, 1024, 1024)
a, err := decoder.Decode()
c.Assert(err, IsNil, Commentf("stream: %q", streamData))
checkContent(c, a, streamData)
a, err = decoder.Decode()
c.Check(err, Equals, io.EOF, Commentf("stream: %q", streamData))
}
}
func (as *assertsSuite) TestDecoderHappyWithSeparatorsVariations(c *C) {
streams := []string{
exampleBodyAndExtraHeaders,
exampleEmptyBody2NlNl,
exampleEmptyBodyAllDefaults,
}
for _, streamData := range streams {
stream := bytes.NewBufferString(streamData)
decoder := asserts.NewDecoderStressed(stream, 16, 1024, 1024, 1024)
a, err := decoder.Decode()
c.Assert(err, IsNil, Commentf("stream: %q", streamData))
checkContent(c, a, streamData)
a, err = decoder.Decode()
c.Check(err, Equals, io.EOF, Commentf("stream: %q", streamData))
}
}
func (as *assertsSuite) TestDecoderUnexpectedEOF(c *C) {
streamData := exampleBodyAndExtraHeaders + "\n" + exampleEmptyBodyAllDefaults
fstHeadEnd := strings.Index(exampleBodyAndExtraHeaders, "\n\n")
sndHeadEnd := len(exampleBodyAndExtraHeaders) + 1 + strings.Index(exampleEmptyBodyAllDefaults, "\n\n")
for _, brk := range []int{1, fstHeadEnd / 2, fstHeadEnd, fstHeadEnd + 1, fstHeadEnd + 2, fstHeadEnd + 6} {
stream := bytes.NewBufferString(streamData[:brk])
decoder := asserts.NewDecoderStressed(stream, 16, 1024, 1024, 1024)
_, err := decoder.Decode()
c.Check(err, Equals, io.ErrUnexpectedEOF, Commentf("brk: %d", brk))
}
for _, brk := range []int{sndHeadEnd, sndHeadEnd + 1} {
stream := bytes.NewBufferString(streamData[:brk])
decoder := asserts.NewDecoder(stream)
_, err := decoder.Decode()
c.Assert(err, IsNil)
_, err = decoder.Decode()
c.Check(err, Equals, io.ErrUnexpectedEOF, Commentf("brk: %d", brk))
}
}
func (as *assertsSuite) TestDecoderSignatureTooBig(c *C) {
decoder := asserts.NewDecoderStressed(bytes.NewBufferString(exampleBodyAndExtraHeaders), 4, 1024, 1024, 7)
_, err := decoder.Decode()
c.Assert(err, ErrorMatches, `error reading assertion signature: maximum size exceeded while looking for delimiter "\\n\\n"`)
}
func (as *assertsSuite) TestDecoderBodyTooBig(c *C) {
decoder := asserts.NewDecoderStressed(bytes.NewBufferString(exampleBodyAndExtraHeaders), 1024, 1024, 5, 1024)
_, err := decoder.Decode()
c.Assert(err, ErrorMatches, "assertion body length 8 exceeds maximum body size")
}