/usr/lib/mysql-testsuite/extra/binlog_tests/ is in mysql-testsuite-5.6 5.6.16-1~exp1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog.test
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_cache_stat.test
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_implicit_commit.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_innodb.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_insert_delayed.test
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_mysqlbinlog_row.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_mysqlbinlog_start_stop.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/binlog_truncate.test
/usr/lib/mysql-testsuite/extra/binlog_tests/blackhole.test
/usr/lib/mysql-testsuite/extra/binlog_tests/ctype_cp932.test
/usr/lib/mysql-testsuite/extra/binlog_tests/ctype_cp932_binlog.test
/usr/lib/mysql-testsuite/extra/binlog_tests/ctype_ucs_binlog.test
/usr/lib/mysql-testsuite/extra/binlog_tests/database.test
/usr/lib/mysql-testsuite/extra/binlog_tests/drop_table.test
/usr/lib/mysql-testsuite/extra/binlog_tests/drop_temp_table.test
/usr/lib/mysql-testsuite/extra/binlog_tests/implicit.test
/usr/lib/mysql-testsuite/extra/binlog_tests/insert_select-binlog.test
/usr/lib/mysql-testsuite/extra/binlog_tests/mix_innodb_myisam_binlog.test
/usr/lib/mysql-testsuite/extra/binlog_tests/mix_innodb_myisam_side_effects.test
/usr/lib/mysql-testsuite/extra/binlog_tests/mysqlbinlog_row_engine.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/mysqlbinlog_start_stop_1.inc
/usr/lib/mysql-testsuite/extra/binlog_tests/mysqlbinlog_start_stop_2.inc