#!/usr/bin/env perl
use Modern::Perl;

sub findstr {
    if( @_ == 1 ){
        return shift;
    }
    my $x = shift;
    my $y = shift;
    my $l = length $x > length $y ? length $y : length $x;
    for( my $i=$l; $i>0; $i--){
        if( substr($x, 0, $i) eq substr($y, 0, $i)){
            return findstr(substr($x,0,$i), @_);
        }
    }
}

my @array_of_test_names = (
    'History - Family History - Suite with Patient - Clinic - Select Remove(-) Icon of Relative. - Clinic',
    'History - Family History - Suite with Patient - Clinic - Save after Entering values in all fields - Clinic',
    'History - Family History - Suite with Patient - Clinic - Select Add(+) Icon of Relative. - Clinic',
    'History - Family History - Suite with Patient - Clinic - Multiple selection of relatives - Clinic',
    'History - Family History - Suite with Patient - Clinic - Interaction Checking message not provided if procedure code is selected - Clinic',
    'History - Family History - Suite with Patient - Clinic - Interaction Checking message provided if no procedure code is selected - Clinic',
);

my $match = findstr(@array_of_test_names);
say $match;