#!./perl
-# $Header: sleep.t,v 4.0 91/03/20 01:54:34 lwall Locked $
+use strict;
+use warnings;
+use Test::More tests=>4;
-print "1..1\n";
+my $start = time;
+my $sleep_says = sleep 3;
+my $diff = time - $start;
-$x = sleep 2;
-if ($x >= 2 && $x <= 10) {print "ok 1\n";} else {print "not ok 1 $x\n";}
+cmp_ok( $sleep_says, '>=', 2, 'Sleep says it slept at least 2 seconds' );
+cmp_ok( $sleep_says, '<=', 10, '... and no more than 10' );
+
+cmp_ok( $diff, '>=', 2, 'Actual time diff is at least 2 seconds' );
+cmp_ok( $diff, '<=', 10, '... and no more than 10' );