feat: Add test lib_ccxr/util/mod.rs

src/rust/lib_ccxr/src/util/mod.rs

@@ -17,3 +17,20 @@ pub fn write_string_into_pointer(buffer: *mut c_char, string: &str) {
     buffer[..string.len()].copy_from_slice(string.as_bytes());
     buffer[string.len()] = b'\0';
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_write_string_into_pointer() {
+        let test_string = "CCExtractor is the best";
+        let mut buffer = vec![0u8; test_string.len() + 1];
+        let buffer_ptr = buffer.as_mut_ptr() as *mut c_char;
+
+        write_string_into_pointer(buffer_ptr, test_string);
+
+        assert_eq!(&buffer[..test_string.len()], test_string.as_bytes());
+        assert_eq!(buffer[test_string.len()], 0); // Check null terminator
+    }
+}