test(token): Add tag(char) test

winnow-rs · Feb 6, 2024 · aa6e0c8 · aa6e0c8
1 parent 6999216
commit aa6e0c8
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/src/token/tests.rs b/src/token/tests.rs
@@ -183,11 +183,27 @@ fn complete_tag_fixed_size_array() {
     fn test2(i: &[u8]) -> IResult<&[u8], &[u8]> {
         tag(&[0x42]).parse_peek(i)
     }
+
     let input = &[0x42, 0x00][..];
     assert_eq!(test(input), Ok((&b"\x00"[..], &b"\x42"[..])));
     assert_eq!(test2(input), Ok((&b"\x00"[..], &b"\x42"[..])));
 }
 
+#[test]
+fn complete_tag_char() {
+    fn test(i: &[u8]) -> IResult<&[u8], &[u8]> {
+        tag('B').parse_peek(i)
+    }
+    assert_eq!(test(&[0x42, 0x00][..]), Ok((&b"\x00"[..], &b"\x42"[..])));
+    assert_eq!(
+        test(&[b'A', b'\0'][..]),
+        Err(ErrMode::Backtrack(error_position!(
+            &&b"A\0"[..],
+            ErrorKind::Tag
+        )))
+    );
+}
+
 #[test]
 fn partial_any_str() {
     use super::any;