test/savescreen.sh

#!/bin/sh
##############################################################################
# Copyright 2020,2022 Thomas E. Dickey                                       #
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##############################################################################
# $Id: savescreen.sh,v 1.8 2022/07/16 16:34:34 tom Exp $
#
# Use this script to exercise "savescreen".
# It starts by generating a series of temporary-filenames, which are passed
# to the test-program.  Loop as long as the first file named exists.

: "${TMPDIR:=/tmp}"

# "mktemp -d" would be preferable, but is not standard.
MY_DIR=$TMPDIR/savescreen$$
trap "rm -rf $MY_DIR; exit 1" 1 2 3
trap "rm -rf $MY_DIR" 0
umask 077
mkdir $MY_DIR || exit 1

PARAMS=
NFILES=4
PREFIX=$MY_DIR/savescreen
n=0
BEGINS=$PREFIX-$n.tmp
while test $n != $NFILES
do
	LATEST=$PREFIX-$n.tmp
	PARAMS="$PARAMS $LATEST"
	n=`expr $n + 1`
done

${0%.sh} $PARAMS
if test -f $BEGINS
then
	while test -f $BEGINS
	do
		"${0%.sh}" -r $PARAMS
		test $? != 0 && break
	done
else
	echo "No screens were saved"
fi