build "core init test/synced_interface" create_boot_directory install_config { } build_boot_image "core init test-synced_interface" append qemu_args "-nographic -m 64" run_genode_until {child "test-synced_interface" exited with exit value 0} 10 grep_output {-> test-synced_interface} compare_output_to { [init -> test-synced_interface] lock [init -> test-synced_interface] adding 13 + 14 [init -> test-synced_interface] unlock [init -> test-synced_interface] result is 27 }