[zdx_simple_arena][zdx_string_view] Fix tests

tests/zdx_simple_arena_test.c

@@ -425,9 +425,11 @@ int main(void)
       assertm(arena.err, "Expected: arena to have an error %s -> %s, Received: %s", arena.err, strerror(errno), arena.err);
       assertm(arena.offset == 0, "Expected: arena offset to be 0, Received: %zu", arena.offset);
 
+      arena_reset(&arena);
+
       /* test invalid old size path */
       int *valid = arena_realloc(&arena, NULL, 0, sizeof(int) * 8);
-      c = arena_realloc(&arena, valid, 0, 20);
+      c = arena_realloc(&arena, valid, 0, 20); // this should fail as the pointer is not NULL but old size is invalid (0)
       assertm(c == NULL, "Expected: arena_realloc to fail due to old size being 0, Received: new ptr %p", (void *)c);
       assertm(arena.err, "Expected: arena to have an error %s -> %s, Received: %s", arena.err, strerror(errno), arena.err);
       assertm(arena.offset == sizeof(int) * 8, "Expected: arena offset to be 0, Received: %zu", arena.offset);

tests/zdx_string_view_test.c

@@ -107,7 +107,6 @@ int main(void)
         "000"
     };
     expected_chunk = sv_split_by_char(&sv, '.');
-    printf("expected "SV_FMT"\n", sv_fmt_args(expected_chunk));
     for (size_t i = 0; expected_chunk.buf; i++) {
       sv_t expected_sv = sv_from_cstr(expected_chunks[i]);