4.4BSD/usr/src/contrib/perl-4.036/t/op/delete.t

#!./perl

# $Header: delete.t,v 4.0 91/03/20 01:51:56 lwall Locked $

print "1..6\n";

$foo{1} = 'a';
$foo{2} = 'b';
$foo{3} = 'c';

$foo = delete $foo{2};

if ($foo eq 'b') {print "ok 1\n";} else {print "not ok 1 $foo\n";}
if ($foo{2} eq '') {print "ok 2\n";} else {print "not ok 2 $foo{2}\n";}
if ($foo{1} eq 'a') {print "ok 3\n";} else {print "not ok 3\n";}
if ($foo{3} eq 'c') {print "ok 4\n";} else {print "not ok 4\n";}

$foo = join('',values(foo));
if ($foo eq 'ac' || $foo eq 'ca') {print "ok 5\n";} else {print "not ok 5\n";}

foreach $key (keys foo) {
    delete $foo{$key};
}

$foo{'foo'} = 'x';
$foo{'bar'} = 'y';

$foo = join('',values(foo));
if ($foo eq 'xy' || $foo eq 'yx') {print "ok 6\n";} else {print "not ok 6\n";}