How do you test code that uses overloading operators?

Testing code that utilizes operator overloading in Perl can be accomplished through a variety of methods, including unit testing with modules like Test::More. Below is an example demonstrating how to overload the addition operator and subsequently test its functionality.

package MyNumber; use overload '+' => 'add'; sub new { my ($class, $value) = @_; return bless \$value, $class; } sub add { my ($self, $other) = @_; return MyNumber->new($$self + $$other); } package main; my $num1 = MyNumber->new(5); my $num2 = MyNumber->new(10); my $result = $num1 + $num2; # This will invoke the overloaded '+' operator print $$result; # Should output 15

Perl operator overloading unit testing Test::More Perl testing software testing programming