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-rw-r--r--third_party/rust/nom/src/sequence/tests.rs290
1 files changed, 290 insertions, 0 deletions
diff --git a/third_party/rust/nom/src/sequence/tests.rs b/third_party/rust/nom/src/sequence/tests.rs
new file mode 100644
index 0000000000..30ad0d6783
--- /dev/null
+++ b/third_party/rust/nom/src/sequence/tests.rs
@@ -0,0 +1,290 @@
+use super::*;
+use crate::bytes::streaming::{tag, take};
+use crate::error::{Error, ErrorKind};
+use crate::internal::{Err, IResult, Needed};
+use crate::number::streaming::be_u16;
+
+#[test]
+fn single_element_tuples() {
+ use crate::character::complete::alpha1;
+ use crate::{error::ErrorKind, Err};
+
+ let mut parser = tuple((alpha1,));
+ assert_eq!(parser("abc123def"), Ok(("123def", ("abc",))));
+ assert_eq!(
+ parser("123def"),
+ Err(Err::Error(("123def", ErrorKind::Alpha)))
+ );
+}
+
+#[derive(PartialEq, Eq, Debug)]
+struct B {
+ a: u8,
+ b: u8,
+}
+
+#[derive(PartialEq, Eq, Debug)]
+struct C {
+ a: u8,
+ b: Option<u8>,
+}
+
+/*FIXME: convert code examples to new error management
+use util::{add_error_pattern, error_to_list, print_error};
+
+#[cfg(feature = "std")]
+#[rustfmt::skip]
+fn error_to_string<P: Clone + PartialEq>(e: &Context<P, u32>) -> &'static str {
+ let v: Vec<(P, ErrorKind<u32>)> = error_to_list(e);
+ // do it this way if you can use slice patterns
+ //match &v[..] {
+ // [ErrorKind::Custom(42), ErrorKind::Tag] => "missing `ijkl` tag",
+ // [ErrorKind::Custom(42), ErrorKind::Custom(128), ErrorKind::Tag] => "missing `mnop` tag after `ijkl`",
+ // _ => "unrecognized error"
+ //}
+
+ let collected: Vec<ErrorKind<u32>> = v.iter().map(|&(_, ref e)| e.clone()).collect();
+ if &collected[..] == [ErrorKind::Custom(42), ErrorKind::Tag] {
+ "missing `ijkl` tag"
+ } else if &collected[..] == [ErrorKind::Custom(42), ErrorKind::Custom(128), ErrorKind::Tag] {
+ "missing `mnop` tag after `ijkl`"
+ } else {
+ "unrecognized error"
+ }
+}
+
+// do it this way if you can use box patterns
+//use $crate::lib::std::str;
+//fn error_to_string(e:Err) -> String
+// match e {
+// NodePosition(ErrorKind::Custom(42), i1, box Position(ErrorKind::Tag, i2)) => {
+// format!("missing `ijkl` tag, found '{}' instead", str::from_utf8(i2).unwrap())
+// },
+// NodePosition(ErrorKind::Custom(42), i1, box NodePosition(ErrorKind::Custom(128), i2, box Position(ErrorKind::Tag, i3))) => {
+// format!("missing `mnop` tag after `ijkl`, found '{}' instead", str::from_utf8(i3).unwrap())
+// },
+// _ => "unrecognized error".to_string()
+// }
+//}
+*/
+
+#[test]
+fn complete() {
+ use crate::bytes::complete::tag;
+ fn err_test(i: &[u8]) -> IResult<&[u8], &[u8]> {
+ let (i, _) = tag("ijkl")(i)?;
+ tag("mnop")(i)
+ }
+ let a = &b"ijklmn"[..];
+
+ let res_a = err_test(a);
+ assert_eq!(
+ res_a,
+ Err(Err::Error(error_position!(&b"mn"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn pair_test() {
+ fn pair_abc_def(i: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
+ pair(tag("abc"), tag("def"))(i)
+ }
+
+ assert_eq!(
+ pair_abc_def(&b"abcdefghijkl"[..]),
+ Ok((&b"ghijkl"[..], (&b"abc"[..], &b"def"[..])))
+ );
+ assert_eq!(
+ pair_abc_def(&b"ab"[..]),
+ Err(Err::Incomplete(Needed::new(1)))
+ );
+ assert_eq!(
+ pair_abc_def(&b"abcd"[..]),
+ Err(Err::Incomplete(Needed::new(2)))
+ );
+ assert_eq!(
+ pair_abc_def(&b"xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ pair_abc_def(&b"xxxdef"[..]),
+ Err(Err::Error(error_position!(&b"xxxdef"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ pair_abc_def(&b"abcxxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn separated_pair_test() {
+ fn sep_pair_abc_def(i: &[u8]) -> IResult<&[u8], (&[u8], &[u8])> {
+ separated_pair(tag("abc"), tag(","), tag("def"))(i)
+ }
+
+ assert_eq!(
+ sep_pair_abc_def(&b"abc,defghijkl"[..]),
+ Ok((&b"ghijkl"[..], (&b"abc"[..], &b"def"[..])))
+ );
+ assert_eq!(
+ sep_pair_abc_def(&b"ab"[..]),
+ Err(Err::Incomplete(Needed::new(1)))
+ );
+ assert_eq!(
+ sep_pair_abc_def(&b"abc,d"[..]),
+ Err(Err::Incomplete(Needed::new(2)))
+ );
+ assert_eq!(
+ sep_pair_abc_def(&b"xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ sep_pair_abc_def(&b"xxx,def"[..]),
+ Err(Err::Error(error_position!(&b"xxx,def"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ sep_pair_abc_def(&b"abc,xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn preceded_test() {
+ fn preceded_abcd_efgh(i: &[u8]) -> IResult<&[u8], &[u8]> {
+ preceded(tag("abcd"), tag("efgh"))(i)
+ }
+
+ assert_eq!(
+ preceded_abcd_efgh(&b"abcdefghijkl"[..]),
+ Ok((&b"ijkl"[..], &b"efgh"[..]))
+ );
+ assert_eq!(
+ preceded_abcd_efgh(&b"ab"[..]),
+ Err(Err::Incomplete(Needed::new(2)))
+ );
+ assert_eq!(
+ preceded_abcd_efgh(&b"abcde"[..]),
+ Err(Err::Incomplete(Needed::new(3)))
+ );
+ assert_eq!(
+ preceded_abcd_efgh(&b"xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ preceded_abcd_efgh(&b"xxxxdef"[..]),
+ Err(Err::Error(error_position!(&b"xxxxdef"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ preceded_abcd_efgh(&b"abcdxxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn terminated_test() {
+ fn terminated_abcd_efgh(i: &[u8]) -> IResult<&[u8], &[u8]> {
+ terminated(tag("abcd"), tag("efgh"))(i)
+ }
+
+ assert_eq!(
+ terminated_abcd_efgh(&b"abcdefghijkl"[..]),
+ Ok((&b"ijkl"[..], &b"abcd"[..]))
+ );
+ assert_eq!(
+ terminated_abcd_efgh(&b"ab"[..]),
+ Err(Err::Incomplete(Needed::new(2)))
+ );
+ assert_eq!(
+ terminated_abcd_efgh(&b"abcde"[..]),
+ Err(Err::Incomplete(Needed::new(3)))
+ );
+ assert_eq!(
+ terminated_abcd_efgh(&b"xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ terminated_abcd_efgh(&b"xxxxdef"[..]),
+ Err(Err::Error(error_position!(&b"xxxxdef"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ terminated_abcd_efgh(&b"abcdxxxx"[..]),
+ Err(Err::Error(error_position!(&b"xxxx"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn delimited_test() {
+ fn delimited_abc_def_ghi(i: &[u8]) -> IResult<&[u8], &[u8]> {
+ delimited(tag("abc"), tag("def"), tag("ghi"))(i)
+ }
+
+ assert_eq!(
+ delimited_abc_def_ghi(&b"abcdefghijkl"[..]),
+ Ok((&b"jkl"[..], &b"def"[..]))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"ab"[..]),
+ Err(Err::Incomplete(Needed::new(1)))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"abcde"[..]),
+ Err(Err::Incomplete(Needed::new(1)))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"abcdefgh"[..]),
+ Err(Err::Incomplete(Needed::new(1)))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"xxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"xxxdefghi"[..]),
+ Err(Err::Error(error_position!(
+ &b"xxxdefghi"[..],
+ ErrorKind::Tag
+ ),))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"abcxxxghi"[..]),
+ Err(Err::Error(error_position!(&b"xxxghi"[..], ErrorKind::Tag)))
+ );
+ assert_eq!(
+ delimited_abc_def_ghi(&b"abcdefxxx"[..]),
+ Err(Err::Error(error_position!(&b"xxx"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn tuple_test() {
+ fn tuple_3(i: &[u8]) -> IResult<&[u8], (u16, &[u8], &[u8])> {
+ tuple((be_u16, take(3u8), tag("fg")))(i)
+ }
+
+ assert_eq!(
+ tuple_3(&b"abcdefgh"[..]),
+ Ok((&b"h"[..], (0x6162u16, &b"cde"[..], &b"fg"[..])))
+ );
+ assert_eq!(tuple_3(&b"abcd"[..]), Err(Err::Incomplete(Needed::new(1))));
+ assert_eq!(tuple_3(&b"abcde"[..]), Err(Err::Incomplete(Needed::new(2))));
+ assert_eq!(
+ tuple_3(&b"abcdejk"[..]),
+ Err(Err::Error(error_position!(&b"jk"[..], ErrorKind::Tag)))
+ );
+}
+
+#[test]
+fn unit_type() {
+ assert_eq!(
+ tuple::<&'static str, (), Error<&'static str>, ()>(())("abxsbsh"),
+ Ok(("abxsbsh", ()))
+ );
+ assert_eq!(
+ tuple::<&'static str, (), Error<&'static str>, ()>(())("sdfjakdsas"),
+ Ok(("sdfjakdsas", ()))
+ );
+ assert_eq!(
+ tuple::<&'static str, (), Error<&'static str>, ()>(())(""),
+ Ok(("", ()))
+ );
+}