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67 lines
2.0 KiB
67 lines
2.0 KiB
#![no_main]
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use libfuzzer_sys::fuzz_target;
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use oxrdf::Quad;
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use oxttl::{NQuadsParser, NQuadsSerializer};
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fn parse<'a>(chunks: impl IntoIterator<Item = &'a [u8]>) -> (Vec<Quad>, Vec<String>) {
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let mut quads = Vec::new();
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let mut errors = Vec::new();
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let mut parser = NQuadsParser::new().with_quoted_triples().parse();
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for chunk in chunks {
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parser.extend_from_slice(chunk);
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while let Some(result) = parser.read_next() {
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match result {
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Ok(quad) => quads.push(quad),
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Err(error) => errors.push(error.to_string()),
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}
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}
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}
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parser.end();
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while let Some(result) = parser.read_next() {
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match result {
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Ok(quad) => quads.push(quad),
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Err(error) => errors.push(error.to_string()),
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}
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}
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assert!(parser.is_end());
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(quads, errors)
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}
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fuzz_target!(|data: &[u8]| {
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// We parse with splitting
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let (quads, errors) = parse(data.split(|c| *c == 0xFF));
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// We parse without splitting
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let (quads_without_split, errors_without_split) = parse([data
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.iter()
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.copied()
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.filter(|c| *c != 0xFF)
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.collect::<Vec<_>>()
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.as_slice()]);
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assert_eq!(quads, quads_without_split);
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assert_eq!(errors, errors_without_split);
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// We serialize
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let mut writer = NQuadsSerializer::new().serialize_to_write(Vec::new());
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for quad in &quads {
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writer.write_quad(quad).unwrap();
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}
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let new_serialization = writer.finish();
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// We parse the serialization
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let new_quads = NQuadsParser::new()
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.with_quoted_triples()
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.parse_read(new_serialization.as_slice())
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.collect::<Result<Vec<_>, _>>()
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.map_err(|e| {
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format!(
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"Error on {:?} from {quads:?} based on {:?}: {e}",
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String::from_utf8_lossy(&new_serialization),
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String::from_utf8_lossy(data)
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)
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})
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.unwrap();
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// We check the roundtrip has not changed anything
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assert_eq!(new_quads, quads);
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});
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