C:\_32\pscrpt\inline>perl bliako.pl Case1: @out ok 1 - Case1: called success. ok 2 - Case1: rows are 5 not ok 3 - Case1 : item 0 is ARRAYref. # Failed test 'Case1 : item 0 is ARRAYref.' # at bliako.pl line 72. Bizarre copy of ARRAY in list assignment at C:/perl-5.34.0/lib/Test/Builder.pm line 802. # Tests were run but no plan was declared and done_testing() was not seen. # Looks like your test exited with 255 just after 3.