use strict;
use warnings;

use Test::More;

my @good = qw( 12 1 +1 1234 );
my @bad  = qw( 1a -3 0.1 .1 0 +0 -0 );

plan 'tests' => scalar @good + scalar @bad;
ok(   is_int( $_ ), "[$_] is int" )     for @good;
ok( ! is_int( $_ ), "[$_] is not int" ) for @bad;

sub is_int {
    return ( $_[0] eq int( $_[0] ) && $_[0] > 0 );
}
__END__
1..11
ok 1 - [12] is int
ok 2 - [1] is int
not ok 3 - [+1] is int
#   Failed test '[+1] is int'
#   in perlmonks.pl at line 14.
ok 4 - [1234] is int
Argument "1a" isn't numeric in int at perlmonks.pl line 18.
ok 5 - [1a] is not int
ok 6 - [-3] is not int
ok 7 - [0.1] is not int
ok 8 - [.1] is not int
ok 9 - [0] is not int
ok 10 - [+0] is not int
ok 11 - [-0] is not int
# Looks like you failed 1 test of 11.

[download]

Oops. I should have named that is_positive_int, etc.

In reply to Re^3: Check for Positive Integer entry only by kyle
in thread Check for Positive Integer entry only by Anonymous Monk

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