You have shown us a line of code with 7 unknown entities and expect us to read your mind sufficiently to tell you how you want to change the line to do something else? Try starting with the code here:

use warnings;
use strict;
use Data::Dumper;

my %hoh;
push @{$hoh{'this'}->{'that'}->{'theOther'} }, ['eggs', 'bacon', 'chee
+se'];

print Dumper (\%hoh);
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which prints:

$VAR1 = {
          'this' => {
                      'that' => {
                                  'theOther' => [
                                                  [
                                                    'eggs',
                                                    'bacon',
                                                    'cheese'
                                                  ]
                                                ]
                                }
                    }
        };
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and telling us what you would rather see printed.

Erm, $hoh{$component}->{$cmd}->{$testcase} contains an arrayref which contains one or more arrayrefs which you've pushed into it. There's no other hashes in what you've shown. Perhaps you could clarify what hash it is you're interested in . . .