app-test: check screen application

Add test for screen c/r.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/app-emu/screen/run.sh

+#!/bin/bash
+
+crtools="../../../crtools"
+
+set -x
+
+echo "Creating reference objects"
+
+screen -d -m -S crtools-zdtm
+pid=$(screen -list | grep '\<crtools-zdtm\>.*Detached' | sed 's/\s*\([0-9]*\).*/\1/');
+echo PID=$pid
+
+mkdir dump
+
+${crtools} dump -D dump -o dump.log -v 4  -t ${pid} || {
+	echo "Dump failed"
+	exit 1
+}
+
+echo "Dumped, restoring and waiting for completion"
+
+${crtools} restore -d -D dump -o restore.log -v 4 -t ${pid} || {
+	echo "Restore failed"
+	exit 1
+}
+
+echo PASS