getxattr does not seem to work well under QA box.
https://bugs.gentoo.org/934951
--- a/tests/test_checksum.c
+++ b/tests/test_checksum.c
@@ -301,7 +301,6 @@ checksum_suite(void)
     Suite *s = suite_create("checksum");
     TCase *tc = tcase_create("Main");
     tcase_add_test(tc, test_checksum_fd);
-    tcase_add_test(tc, test_cached_checksum_matches);
     tcase_add_test(tc, test_cached_checksum_value);
     tcase_add_test(tc, test_cached_checksum_clear);
     suite_add_tcase(s, tc);