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fix pos when reading malformed utf8

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This commit is contained in:
Robin Appelman 2020-12-06 21:20:33 +01:00
commit 4d2ea4ee7c
5 changed files with 38 additions and 10 deletions
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25
tests/read_tests.rs
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@ -3,7 +3,7 @@ use std::num::NonZeroU16;
use maplit::hashmap;
use bitbuffer::{BigEndian, BitRead, BitReadBuffer, BitReadStream, LittleEndian};
use bitbuffer::{BigEndian, BitError, BitRead, BitReadBuffer, BitReadStream, LittleEndian};
const BYTES: &'static [u8] = &[
0b1011_0101,
@ -473,3 +473,26 @@ fn test_to_owned_stream() {
assert_eq!(stream.bit_len(), owned.bit_len());
assert_eq!(stream.bits_left(), owned.bits_left());
}
#[test]
fn test_invalid_utf8() {
let bytes = vec![b'b', b'a', 129, b'c', 0, 0, 0];
let buffer = BitReadBuffer::new(&bytes, LittleEndian);
let mut stream = BitReadStream::new(buffer.clone());
assert!(matches!(
stream.read_string(None),
Err(BitError::Utf8Error(_, 4))
));
assert_eq!(stream.pos(), 5 * 8);
let mut stream = BitReadStream::new(buffer);
assert!(matches!(
stream.read_string(Some(6)),
Err(BitError::Utf8Error(_, 6))
));
assert_eq!(stream.pos(), 6 * 8);
}