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add test

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This commit is contained in:
NikVolf 2017-08-03 21:40:16 +03:00
parent 6b3f5c977a
commit d30e47a50e
1 changed files with 10 additions and 2 deletions
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12
util/rlp/src/untrusted_rlp.rs
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@ -371,7 +371,7 @@ impl<'a> BasicDecoder<'a> {
} }
let len = decode_usize(&bytes[1..begin_of_value])?; let len = decode_usize(&bytes[1..begin_of_value])?;
let last_index_of_value = begin_of_value.overflowing_add(len) let last_index_of_value = begin_of_value.checked_add(len)
.ok_or(DecoderError::RlpInvalidLength)?; .ok_or(DecoderError::RlpInvalidLength)?;
if bytes.len() < last_index_of_value { if bytes.len() < last_index_of_value {
return Err(DecoderError::RlpInconsistentLengthAndData); return Err(DecoderError::RlpInconsistentLengthAndData);
@ -386,7 +386,7 @@ impl<'a> BasicDecoder<'a> {
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use UntrustedRlp; use {UntrustedRlp, DecoderError};
#[test] #[test]
fn test_rlp_display() { fn test_rlp_display() {
@ -395,4 +395,12 @@ mod tests {
let rlp = UntrustedRlp::new(&data); let rlp = UntrustedRlp::new(&data);
assert_eq!(format!("{}", rlp), "[\"0x05\", \"0x010efbef67941f79b2\", \"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421\", \"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470\"]"); assert_eq!(format!("{}", rlp), "[\"0x05\", \"0x010efbef67941f79b2\", \"0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421\", \"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470\"]");
} }
#[test]
fn length_overflow() {
let bs = [0xbf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe5];
let rlp = UntrustedRlp::new(&bs);
let res: Result<u8, DecoderError> = rlp.as_val();
assert_eq!(Err(DecoderError::RlpInvalidLength), res);
}
} }