# tty mode round-trip: Ctrl-b in, run a command, Ctrl-b out
file m.txt marker
start 30 100
wait 8000 m.txt
stable 700 20000
key c-b
stable 600 8000
snap tty-on
text echo SNAP''OK
key enter
wait 8000 SNAPOK
stable 700 10000
snap tty-echo
key c-b
stable 600 8000
snap tty-off