/usr/lib/mysql-testsuite/suite/auth_sec/ is in percona-server-test-5.6 5.6.22-rel71.0-0ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/mysql-testsuite/suite/auth_sec/include/
/usr/lib/mysql-testsuite/suite/auth_sec/include/have_openssl.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/have_sha256_rsa_auth.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/have_ssl.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/have_ssl_communication.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/mysql_upgrade_preparation.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/not_embedded.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/not_openssl.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/not_sha256_rsa_auth.inc
/usr/lib/mysql-testsuite/suite/auth_sec/include/not_ssl.inc
/usr/lib/mysql-testsuite/suite/auth_sec/r/
/usr/lib/mysql-testsuite/suite/auth_sec/r/access_credential_control.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/have_mysql_upgrade.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/have_ssl.require
/usr/lib/mysql-testsuite/suite/auth_sec/r/key_value_auth.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/mysql_native_plugin.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/mysql_old_passwords.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/mysql_old_plugin.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/mysql_sha256_plugin.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/not_embedded.require
/usr/lib/mysql-testsuite/suite/auth_sec/r/not_openssl.require
/usr/lib/mysql-testsuite/suite/auth_sec/r/not_ssl.require
/usr/lib/mysql-testsuite/suite/auth_sec/r/openssl.require
/usr/lib/mysql-testsuite/suite/auth_sec/r/password_expired.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/server_withoutssl_client_withoutssl.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/server_withoutssl_client_withssl.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/server_withssl_client_withoutssl.result
/usr/lib/mysql-testsuite/suite/auth_sec/r/server_withssl_client_withssl.result
/usr/lib/mysql-testsuite/suite/auth_sec/t/
/usr/lib/mysql-testsuite/suite/auth_sec/t/access_credential_control-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/access_credential_control.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/key_value_auth-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/key_value_auth.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/key_value_auth.test_old
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_native_plugin.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_old_passwords-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_old_passwords.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_old_plugin.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_old_plugin.test_old
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_sha256_plugin-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/mysql_sha256_plugin.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/password_expired-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/password_expired.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withoutssl_client_withoutssl.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withoutssl_client_withssl.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withssl_client_withoutssl-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withssl_client_withoutssl.test
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withssl_client_withssl-master.opt
/usr/lib/mysql-testsuite/suite/auth_sec/t/server_withssl_client_withssl.test