# -*- Mode: CPerl -*-

use Test::More 'no_plan';

use Data::Dumper;

use Hash::MultiKey;

tie %hmk, 'Hash::MultiKey';

@idxs = 1..6;

@key1 = ("foo");
@key2 = ("foo", "bar", "baz");
@key3 = ("foo", "bar", "baz", "zoo");
@key4 = ("goo");
@key5 = ("goo", "car", "caz");
@key6 = ("goo", "car", "caz", "aoo");

$val1 = undef;
$val2 = 1;
$val3 = 'string';
$val4 = ['array', 'ref'];
$val5 = {hash => 'ref', with => 'two', keys => undef};
$val6 = \7;

# initialize %hmk
$hmk{join $;, @{"key$_"}} = ${"val$_"} foreach @idxs;

# each in list context
while (my ($k, $v) = each %hmk) {
    is_deeply($hmk{$k}, $v, "each all: list context");
}

# each in scalar context
$i = 0;
while ($k = each %hmk) {
    ++$i;
    ok(exists $hmk{$k}, 'each all: scalar context');
}
is(scalar(keys %hmk), $i, 'each all: number of iterations');

foreach $i (@idxs) {
    delete $hmk{join $;, @{"key$i"}};
    while (my ($k, $v) = each %hmk) {
        is_deeply($hmk{$k}, $v, "each $i: @$k");
    }
}

# deletion of the last element must be safe
while (($k, $v) = each %hmk) {
    is_deeply(delete $hmk{$k}, $v, 'deletion in each');
}