# list, status and logs. Read-only verbs that must stay read-only.

"$VMM" create ls1 64M >/dev/null 2>&1

outputs 'ls1' "list shows a VM" list
outputs 'stopped' "list shows stopped state" list
exits 1 "list rejects extra arguments" list bogus
exits 3 "status of a stopped VM exits 3" status ls1
exits 2 "logs of an unknown VM exits 2" logs nosuchvm
exits 1 "logs refuses a zero line count" logs -n 00 ls1
refuses 'invalid line count' "logs refuses a count too big for tail" \
	logs -n 9999999999 ls1

# A read only listing must never remove a pidfile.
echo 99999999 > "$VMMDIR/ls1/pid"
"$VMM" list >/dev/null 2>&1 || :
"$VMM" status ls1 >/dev/null 2>&1 || :
holds "list and status never unlink a pidfile" test -f "$VMMDIR/ls1/pid"
rm -f "$VMMDIR/ls1/pid"

# A live pid running something other than QEMU is stale, not this VM.
# Use this test shell itself so there is no helper process to leak.
echo "$$" > "$VMMDIR/ls1/pid"
state=$("$VMM" list | awk '$1 == "ls1" { print $2 }')
if [ "$state" = stopped ]; then
	ok "a live non-QEMU pid reads as stopped"
else
	notok "a live non-QEMU pid reads as stopped" "got [$state]"
fi
rm -f "$VMMDIR/ls1/pid"

# A pidfile naming a pid that is gone is the common case after a crash,
# and reading /proc for it must not make the shell complain. The same
# race happens on every kill.
echo 999999 > "$VMMDIR/ls1/pid"
omits cmdline "a pidfile naming a dead process is cleaned quietly" stop ls1
holds "and the pidfile is cleaned up" test ! -e "$VMMDIR/ls1/pid"