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#!/usr/bin/perl
use warnings;
use strict;
# a/b
# / \
# / \
# a/(a+b) (a+b)/b
sub parent {
my ($x, $y) = @_;
return $x < $y ? ($x, $y - $x) : ($x - $y, $y)
}
sub grandparent {
return parent(parent(@_))
}
use Test2::V0;
plan 4;
{ my $member = [3, 5];
is [parent(@$member)], [3, 2], 'Example 1 parent';
is [grandparent(@$member)], [1, 2], 'Example 1 grandparent';
}
{ my $member = [4, 3];
is [parent(@$member)], [1, 3], 'Example 2 parent';
is [grandparent(@$member)], [1, 2], 'Example 2 grandparent';
}
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