shadow/tests/usertools/usermod/42_usermod-u_copy_faillog_entry/login.exp

#!/usr/bin/expect

set timeout 5
expect_after default {puts stderr "\nFAIL"; exit 1}

spawn /bin/bash
expect "# "

send "login foo\r"
expect "Password: "
sleep 0.1
send "badpass\r"
send_user "\n# password 'badpass' sent\n\n"
expect "login: "

send "exit\r"
exit 0