NAME
Acme::Test::LogicalEquivalence - Test if expressions are logically
equivalent
VERSION
version 0.001
SYNOPSIS
use Test::More;
use Acme::Test::LogicalEquivalence qw(is_logically_equivalent);
# test two expressions with 2 variables using the special vars $a and $b
is_logically_equivalent(2, sub { $a && $b }, sub { $b && $a });
# same as above
is_logically_equivalent(2, sub { $_[0] && $_[1] }, sub { $_[1] && $_[0] });
# you can do as many vars as you like
is_logically_equivalent(3, sub { $_[0] || ($_[1] && $_[2]) },
sub { ($_[0] || $_[1]) && ($_[0] || $_[2]) });
done_testing;
DESCRIPTION
Some expressions are "logically equivalent" to other expressions, but
it may not be easy to tell if one or both of the expressions are
reasonably complicated. Or maybe you're like many other people and are
too lazy to go through the effort... Either way, why not let your
computer prove logical equivalence for you?
FUNCTIONS
is_logically_equivalent
Test logical equivalence of two subroutines.
my $is_equivalent = is_logically_equivalent($numvars, &sub1, &sub2);
This will execute both of the subroutines one or more times (depending
on how many variables you specify) with different inputs. The
subroutines shall be considered logically equivalent if, for all
combinations of inputs, they both return the same thing.
Returns true if the subroutines are logically equivalent, false
otherwise.
SEE ALSO
* What is logical equivalence? Start here:
https://en.wikipedia.org/wiki/Logical_equivalence
AUTHOR
Charles McGarvey
COPYRIGHT AND LICENSE
This software is copyright (c) 2016 by Charles McGarvey.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.