feat(specctra-core-fuzz): add another fuzz target (for 'Structure')

crates/specctra-core/fuzz/Cargo.toml

@@ -19,3 +19,10 @@ path = "fuzz_targets/fuzz_target_1.rs"
 test = false
 doc = false
 bench = false
+
+[[bin]]
+name = "fuzz_target_2"
+path = "fuzz_targets/fuzz_target_2.rs"
+test = false
+doc = false
+bench = false

crates/specctra-core/fuzz/fuzz_targets/fuzz_target_1.rs

@@ -3,7 +3,7 @@
 use libfuzzer_sys::fuzz_target;
 
 fuzz_target!(|data: &str| {
-    let mut cursor = std::io::Cursor::new(data);
+    let cursor = std::io::Cursor::new(data);
 
     use specctra_core::{read::ListTokenizer, structure::DsnFile};
 

crates/specctra-core/fuzz/fuzz_targets/fuzz_target_2.rs

@@ -0,0 +1,19 @@
+#![no_main]
+
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &str| {
+    let cursor = std::io::Cursor::new(data);
+
+    use specctra_core::{read::ListTokenizer, write::ListWriter, structure::Structure};
+
+    let mut tkz = ListTokenizer::new(cursor);
+
+    let res: Result<_, _> = tkz.read_value::<Structure>();
+
+    if let Ok(val) = res {
+        let mut dat = Vec::new();
+        let mut lw = ListWriter::new(&mut dat);
+        let _ = lw.write_value(&val);
+    }
+});