Test for fuzz debug_assert

The failure in url has been fixed with a recent round of dependency
updates.

Including the original fuzz regression test case.

feed-rs/src/parser/fuzz.rs

@@ -0,0 +1,29 @@
+use crate::parser::parse;
+
+#[test]
+fn fuzz_parse() {
+    let data: Vec<u8> = vec![
+        0xdb, 0x3b, 0x3c, 0x66, 0x65, 0x65, 0x64, 0x3e,
+        0x00, 0xfe, 0xff, 0x00, 0x00, 0x00, 0x3c, 0x1b,
+        0x3b, 0x64, 0x22, 0x22, 0x0d, 0x78, 0x6d, 0x6c,
+        0x3a, 0x62, 0x61, 0x73, 0x65, 0x0d, 0x0d, 0x3d,
+        0x0a, 0x22, 0x0a, 0x0d, 0x0a, 0x0a, 0x0d, 0x66,
+        0x69, 0x6c, 0x65, 0x3a, 0xff, 0x3b, 0xbf, 0x5b,
+        0xbf, 0xbf, 0xbc, 0xff, 0xff, 0x0a, 0x53, 0x53,
+        0x2b, 0x78, 0x3b, 0x22, 0x3c, 0x64, 0x3e, 0x2b,
+        0x00, 0x00, 0x2b, 0x3c, 0xdb, 0x3b, 0x32, 0x65,
+        0x64, 0x22, 0x22, 0x0d, 0x78, 0x6d, 0x6c, 0x3a,
+        0x62, 0x61, 0x73, 0x65, 0x0d, 0x0d, 0x3d, 0x22,
+        0x75, 0x7c, 0x3f, 0x0a, 0x34, 0x0a, 0xff, 0x22,
+        0x34, 0x3a, 0xb5, 0x2f, 0x3c, 0x66, 0x65, 0x64,
+        0x3e, 0x2b, 0x3c, 0xdb, 0x3b, 0x32, 0x65, 0x0d,
+        0x78, 0x6d, 0x6c, 0x3a, 0x62, 0x61, 0x73, 0x65,
+        0x0d, 0x0d, 0x3d, 0x22, 0x2e, 0x2e, 0x3f, 0x0a,
+        0x3c, 0x3f, 0xff, 0x22, 0x34, 0x3a, 0xb5, 0x2f,
+        0x2f, 0xff, 0xff, 0xfe, 0x01, 0xdb, 0x3b, 0x3c,
+        0x66, 0x65,
+    ];
+
+    let result = parse(data.as_slice());
+    assert!(result.is_err());
+}

feed-rs/src/parser/mod.rs

@@ -239,3 +239,6 @@ fn parse_xml<R: BufRead>(source: R, uri: Option<&str>) -> ParseFeedResult<model:
     // Couldn't find a recognised feed within the provided XML stream
     Err(ParseFeedError::ParseError(ParseErrorKind::NoFeedRoot))
 }
+
+#[cfg(test)]
+mod fuzz;