Fix memory tests

test/util/test_memory.c

@@ -313,8 +313,8 @@ static void test_memoryCompare(void **state) {
   assert_int_equal(memoryCompare(a, a, size), 0);
   assert_int_equal(memoryCompare(b, b, size), 0);
 
-  // Cannot compare 0 bytes
-  expect_assert_failure(memoryCompare(a, b, 0));
+  // Comparison of 0 bytes is always true
+  assert_true(memoryCompare(a, b, 0));
 
   // Compare different sizes (should assert, so we only test the API contract)
   // Not possible with current API, as size is explicit, but document intent.