#!perl use strict; use warnings; use Test::More; my $input_value = '02/08/2018'; my $desired_value = '2/8/2018'; # do stuff with input value: my $transformed_value = $input_value; $transformed_value =~ s!0!!g; # remove all zeroes is $transformed_value, $desired_value, "Conversion strips leading zeroes"; done_testing;