- Fix unit test implicit conversion change of signedness warning.

Author: wcawijngaards

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - TXT records with more than 6465 rdata elements, crashes simdzone parsing.
   Thanks to Qifan Zhang, Palo Alto Networks, for the report.
+- Fix unit test implicit conversion change of signedness warning.
 
 ## [0.2.5] - 2026-07-07
 

tests/syntax.c

@@ -1263,7 +1263,7 @@ void delimiters_overflow_txt(void** state)
   options.default_class = ZONE_CLASS_IN;
 
   /* Build the zone string */
-  zone_str_len = strlen(zone_start_part) + num_items * 2 + 1 /* newline */ +
+  zone_str_len = strlen(zone_start_part) + ((size_t)num_items) * 2 + 1 /* newline */ +
     strlen(zone_end_part) + 1 /* zero */;
   zone = malloc(zone_str_len);
   assert_non_null(zone);