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use super::*;
use crate::error::{ErrMode, ErrorKind, Needed};
use crate::IResult;
use crate::Partial;
#[derive(PartialEq, Eq, Debug)]
struct B {
a: u8,
b: u8,
}
#[derive(PartialEq, Eq, Debug)]
struct C {
a: u8,
b: Option<u8>,
}
#[test]
fn complete() {
fn err_test(i: &[u8]) -> IResult<&[u8], &[u8]> {
let (i, _) = "ijkl".parse_next(i)?;
"mnop".parse_next(i)
}
let a = &b"ijklmn"[..];
let res_a = err_test(a);
assert_eq!(
res_a,
Err(ErrMode::Backtrack(error_position!(
&b"mn"[..],
ErrorKind::Tag
)))
);
}
#[test]
fn separated_pair_test() {
#[allow(clippy::type_complexity)]
fn sep_pair_abc_def(i: Partial<&[u8]>) -> IResult<Partial<&[u8]>, (&[u8], &[u8])> {
separated_pair("abc", ",", "def").parse_next(i)
}
assert_eq!(
sep_pair_abc_def(Partial::new(&b"abc,defghijkl"[..])),
Ok((Partial::new(&b"ghijkl"[..]), (&b"abc"[..], &b"def"[..])))
);
assert_eq!(
sep_pair_abc_def(Partial::new(&b"ab"[..])),
Err(ErrMode::Incomplete(Needed::new(1)))
);
assert_eq!(
sep_pair_abc_def(Partial::new(&b"abc,d"[..])),
Err(ErrMode::Incomplete(Needed::new(2)))
);
assert_eq!(
sep_pair_abc_def(Partial::new(&b"xxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
sep_pair_abc_def(Partial::new(&b"xxx,def"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx,def"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
sep_pair_abc_def(Partial::new(&b"abc,xxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
}
#[test]
fn preceded_test() {
fn preceded_abcd_efgh(i: Partial<&[u8]>) -> IResult<Partial<&[u8]>, &[u8]> {
preceded("abcd", "efgh").parse_next(i)
}
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"abcdefghijkl"[..])),
Ok((Partial::new(&b"ijkl"[..]), &b"efgh"[..]))
);
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"ab"[..])),
Err(ErrMode::Incomplete(Needed::new(2)))
);
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"abcde"[..])),
Err(ErrMode::Incomplete(Needed::new(3)))
);
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"xxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"xxxxdef"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxxxdef"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
preceded_abcd_efgh(Partial::new(&b"abcdxxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
}
#[test]
fn terminated_test() {
fn terminated_abcd_efgh(i: Partial<&[u8]>) -> IResult<Partial<&[u8]>, &[u8]> {
terminated("abcd", "efgh").parse_next(i)
}
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"abcdefghijkl"[..])),
Ok((Partial::new(&b"ijkl"[..]), &b"abcd"[..]))
);
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"ab"[..])),
Err(ErrMode::Incomplete(Needed::new(2)))
);
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"abcde"[..])),
Err(ErrMode::Incomplete(Needed::new(3)))
);
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"xxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"xxxxdef"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxxxdef"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
terminated_abcd_efgh(Partial::new(&b"abcdxxxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxxx"[..]),
ErrorKind::Tag
)))
);
}
#[test]
fn delimited_test() {
fn delimited_abc_def_ghi(i: Partial<&[u8]>) -> IResult<Partial<&[u8]>, &[u8]> {
delimited("abc", "def", "ghi").parse_next(i)
}
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"abcdefghijkl"[..])),
Ok((Partial::new(&b"jkl"[..]), &b"def"[..]))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"ab"[..])),
Err(ErrMode::Incomplete(Needed::new(1)))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"abcde"[..])),
Err(ErrMode::Incomplete(Needed::new(1)))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"abcdefgh"[..])),
Err(ErrMode::Incomplete(Needed::new(1)))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"xxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"xxxdefghi"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxxdefghi"[..]),
ErrorKind::Tag
),))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"abcxxxghi"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxxghi"[..]),
ErrorKind::Tag
)))
);
assert_eq!(
delimited_abc_def_ghi(Partial::new(&b"abcdefxxx"[..])),
Err(ErrMode::Backtrack(error_position!(
Partial::new(&b"xxx"[..]),
ErrorKind::Tag
)))
);
}
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