From: Charles McGarvey Date: Mon, 28 Nov 2016 08:22:18 +0000 (-0700) Subject: Version 0.001 X-Git-Url: https://git.dogcows.com/gitweb?p=chaz%2Fp5-Acme-Test-LogicalEquivalence;a=commitdiff_plain;h=refs%2Fheads%2Fdist Version 0.001 --- c1c23a332c509772ca0748c909fcee6f10de07b2 diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..6e0e2fe --- /dev/null +++ b/.travis.yml @@ -0,0 +1,23 @@ +sudo: false +language: perl +perl: + - '5.24' + - '5.22' + - '5.20' + - '5.18' + - '5.16' + - '5.14' + - '5.12' + - '5.10' + - '5.8' +matrix: + allow_failures: + - perl: '5.8' + fast_finish: true +branches: + only: /^(dist|build\/.*)$/ +before_install: + - rm .travis.yml + - export AUTHOR_TESTING=0 +install: + - cpanm --installdeps --verbose . diff --git a/Changes b/Changes new file mode 100644 index 0000000..af0fd2b --- /dev/null +++ b/Changes @@ -0,0 +1,6 @@ +Revision history for Acme-Test-LogicalEquivalence. + +0.001 2016-11-28 01:21:57-07:00 MST7MDT + + * Initial release + diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..1935df6 --- /dev/null +++ b/LICENSE @@ -0,0 +1,379 @@ +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. + +Terms of the Perl programming language system itself + +a) the GNU General Public License as published by the Free + Software Foundation; either version 1, or (at your option) any + later version, or +b) the "Artistic License" + +--- The GNU General Public License, Version 1, February 1989 --- + +This software is Copyright (c) 2016 by Charles McGarvey. + +This is free software, licensed under: + + The GNU General Public License, Version 1, February 1989 + + GNU GENERAL PUBLIC LICENSE + Version 1, February 1989 + + Copyright (C) 1989 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The license agreements of most software companies try to keep users +at the mercy of those companies. 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+use warnings; + +use 5.008; + +use ExtUtils::MakeMaker; + +my %WriteMakefileArgs = ( + "ABSTRACT" => "Test if expressions are logically equivalent", + "AUTHOR" => "Charles McGarvey ", + "CONFIGURE_REQUIRES" => { + "ExtUtils::MakeMaker" => 0 + }, + "DISTNAME" => "Acme-Test-LogicalEquivalence", + "EXE_FILES" => [ + "bin/test-logical-equivalence" + ], + "LICENSE" => "perl", + "MIN_PERL_VERSION" => "5.008", + "NAME" => "Acme::Test::LogicalEquivalence", + "PREREQ_PM" => { + "Exporter" => 0, + "Test::More" => 0, + "namespace::clean" => 0, + "strict" => 0, + "warnings" => 0 + }, + "TEST_REQUIRES" => { + "ExtUtils::MakeMaker" => 0, + "File::Spec" => 0, + "IO::Handle" => 0, + "IPC::Open3" => 0, + "Test::More" => 0, + "blib" => "1.01" + }, + "VERSION" => "0.001", + "test" => { + "TESTS" => "t/*.t" + } +); + + +my %FallbackPrereqs = ( + "Exporter" => 0, + "ExtUtils::MakeMaker" => 0, + "File::Spec" => 0, + "IO::Handle" => 0, + "IPC::Open3" => 0, + "Test::More" => 0, + "blib" => "1.01", + "namespace::clean" => 0, + "strict" => 0, + "warnings" => 0 +); + + +unless ( eval { ExtUtils::MakeMaker->VERSION(6.63_03) } ) { + delete $WriteMakefileArgs{TEST_REQUIRES}; + delete $WriteMakefileArgs{BUILD_REQUIRES}; + $WriteMakefileArgs{PREREQ_PM} = \%FallbackPrereqs; +} + +delete $WriteMakefileArgs{CONFIGURE_REQUIRES} + unless eval { ExtUtils::MakeMaker->VERSION(6.52) }; + +WriteMakefile(%WriteMakefileArgs); diff --git a/README b/README new file mode 100644 index 0000000..bba0f3c --- /dev/null +++ b/README @@ -0,0 +1,66 @@ +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. + diff --git a/bin/test-logical-equivalence b/bin/test-logical-equivalence new file mode 100755 index 0000000..61d03bf --- /dev/null +++ b/bin/test-logical-equivalence @@ -0,0 +1,111 @@ +#!perl +# ABSTRACT: Test if expressions are logically equivalent +# PODNAME: test-logical-equivalence + + +use 5.008; +use warnings FATAL => 'all'; +use strict; + +use Test::More; +use Acme::Test::LogicalEquivalence qw(is_logically_equivalent); + +sub usage { + print < $numvars2 ? $numvars1 : $numvars2; + +if ($num < 1) { + print STDERR 'No variables detected. Variables should be one or more of $a, $b, ..., $z', "\n"; + exit 2; +} + +# convert $a-style vars to $_[0]-style to support more than just $a and $b +$expr1 =~ s/\$([a-z])/'$_['.(ord($1) - 97).']'/ge; +$expr2 =~ s/\$([a-z])/'$_['.(ord($1) - 97).']'/ge; + +my $sub1 = eval "sub { $expr1 }" or die "Expression 1: $@\n"; ## no critic (ProhibitStringyEval) +my $sub2 = eval "sub { $expr2 }" or die "Expression 2: $@\n"; ## no critic (ProhibitStringyEval) + +plan tests => (2 ** $num); +note "Testing for logical equivalence of two expressions with $num variable(s)..."; + +my $equivalence = is_logically_equivalent($num, $sub1, $sub2); +note $equivalence ? 'Logical equivalence proved!' : 'Bummer...'; + +__END__ + +=pod + +=encoding UTF-8 + +=head1 NAME + +test-logical-equivalence - Test if expressions are logically equivalent + +=head1 VERSION + +version 0.001 + +=head1 SYNOPSIS + + # be sure to escape $ and other special characters from your shell + test-logical-equivalence '$a && $b' '$b && $a' + +=head1 SEE ALSO + +=over 4 + +=item * + +L + +=back + +=head1 AUTHOR + +Charles McGarvey + +=head1 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. + +=cut diff --git a/lib/Acme/Test/LogicalEquivalence.pm b/lib/Acme/Test/LogicalEquivalence.pm new file mode 100644 index 0000000..b894d45 --- /dev/null +++ b/lib/Acme/Test/LogicalEquivalence.pm @@ -0,0 +1,120 @@ +package Acme::Test::LogicalEquivalence; +# ABSTRACT: Test if expressions are logically equivalent +# KEYWORDS: test logic + +use 5.008; +use warnings; +use strict; + +our $VERSION = '0.001'; # VERSION + +use Exporter qw(import); +use Test::More; +use namespace::clean -except => [qw(import)]; + +our @EXPORT_OK = qw(is_logically_equivalent); + + +sub is_logically_equivalent { + my $numvars = shift; + my $sub1 = shift; + my $sub2 = shift; + + my $equivalence = 1; + + for (my $i = 0; $i < 2 ** $numvars; ++$i) { + my @vars = split(//, substr(unpack("B32", pack('N', $i)), -$numvars)); + + (local $a, local $b) = @vars; + my $r1 = !!$sub1->(@vars); + + (local $a, local $b) = @vars; + my $r2 = !!$sub2->(@vars); + + my $test = !($r1 xor $r2); + + my $args = join(', ', map { $_ ? 'T' : 'F' } @vars); + ok($test, "expr1($args) <=> expr2($args)"); + + $equivalence = '' if !$test; + } + + return $equivalence; +} + +1; + +__END__ + +=pod + +=encoding UTF-8 + +=head1 NAME + +Acme::Test::LogicalEquivalence - Test if expressions are logically equivalent + +=head1 VERSION + +version 0.001 + +=head1 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; + +=head1 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? + +=head1 FUNCTIONS + +=head2 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. + +=head1 SEE ALSO + +=over 4 + +=item * + +What is logical equivalence? Start here: L + +=back + +=head1 AUTHOR + +Charles McGarvey + +=head1 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. + +=cut diff --git a/t/00-compile.t b/t/00-compile.t new file mode 100644 index 0000000..ebb9ee2 --- /dev/null +++ b/t/00-compile.t @@ -0,0 +1,94 @@ +use 5.006; +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::Compile 2.056 + +use Test::More; + +plan tests => 2 + ($ENV{AUTHOR_TESTING} ? 1 : 0); + +my @module_files = ( + 'Acme/Test/LogicalEquivalence.pm' +); + +my @scripts = ( + 'bin/test-logical-equivalence' +); + +# no fake home requested + +my @switches = ( + -d 'blib' ? '-Mblib' : '-Ilib', +); + +use File::Spec; +use IPC::Open3; +use IO::Handle; + +open my $stdin, '<', File::Spec->devnull or die "can't open devnull: $!"; + +my @warnings; +for my $lib (@module_files) +{ + # see L + my $stderr = IO::Handle->new; + + diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} } + $^X, @switches, '-e', "require q[$lib]")) + if $ENV{PERL_COMPILE_TEST_DEBUG}; + + my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-e', "require q[$lib]"); + binmode $stderr, ':crlf' if $^O eq 'MSWin32'; + my @_warnings = <$stderr>; + waitpid($pid, 0); + is($?, 0, "$lib loaded ok"); + + shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/ + and not eval { require blib; blib->VERSION('1.01') }; + + if (@_warnings) + { + warn @_warnings; + push @warnings, @_warnings; + } +} + +foreach my $file (@scripts) +{ SKIP: { + open my $fh, '<', $file or warn("Unable to open $file: $!"), next; + my $line = <$fh>; + + close $fh and skip("$file isn't perl", 1) unless $line =~ /^#!\s*(?:\S*perl\S*)((?:\s+-\w*)*)(?:\s*#.*)?$/; + @switches = (@switches, split(' ', $1)) if $1; + + my $stderr = IO::Handle->new; + + diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} } + $^X, @switches, '-c', $file)) + if $ENV{PERL_COMPILE_TEST_DEBUG}; + + my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-c', $file); + binmode $stderr, ':crlf' if $^O eq 'MSWin32'; + my @_warnings = <$stderr>; + waitpid($pid, 0); + is($?, 0, "$file compiled ok"); + + shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/ + and not eval { require blib; blib->VERSION('1.01') }; + + # in older perls, -c output is simply the file portion of the path being tested + if (@_warnings = grep { !/\bsyntax OK$/ } + grep { chomp; $_ ne (File::Spec->splitpath($file))[2] } @_warnings) + { + warn @_warnings; + push @warnings, @_warnings; + } +} } + + + +is(scalar(@warnings), 0, 'no warnings found') + or diag 'got warnings: ', ( Test::More->can('explain') ? Test::More::explain(\@warnings) : join("\n", '', @warnings) ) if $ENV{AUTHOR_TESTING}; + + diff --git a/t/00-report-prereqs.dd b/t/00-report-prereqs.dd new file mode 100644 index 0000000..39de928 --- /dev/null +++ b/t/00-report-prereqs.dd @@ -0,0 +1,52 @@ +do { my $x = { + 'configure' => { + 'requires' => { + 'ExtUtils::MakeMaker' => '0' + } + }, + 'develop' => { + 'requires' => { + 'Dist::Zilla' => '5', + 'Dist::Zilla::PluginBundle::Author::CCM' => '0', + 'English' => '0', + 'Pod::Coverage::TrustPod' => '0', + 'Software::License::Perl_5' => '0', + 'Test::CPAN::Changes' => '0.19', + 'Test::CPAN::Meta' => '0', + 'Test::CleanNamespaces' => '0.15', + 'Test::EOL' => '0', + 'Test::MinimumVersion' => '0', + 'Test::More' => '0.96', + 'Test::NoTabs' => '0', + 'Test::Pod' => '1.41', + 'Test::Pod::Coverage' => '1.08', + 'Test::Pod::No404s' => '0', + 'Test::Portability::Files' => '0' + } + }, + 'runtime' => { + 'requires' => { + 'Exporter' => '0', + 'Test::More' => '0', + 'namespace::clean' => '0', + 'perl' => '5.008', + 'strict' => '0', + 'warnings' => '0' + } + }, + 'test' => { + 'recommends' => { + 'CPAN::Meta' => '2.120900' + }, + 'requires' => { + 'ExtUtils::MakeMaker' => '0', + 'File::Spec' => '0', + 'IO::Handle' => '0', + 'IPC::Open3' => '0', + 'Test::More' => '0', + 'blib' => '1.01' + } + } + }; + $x; + } \ No newline at end of file diff --git a/t/00-report-prereqs.t b/t/00-report-prereqs.t new file mode 100644 index 0000000..e338372 --- /dev/null +++ b/t/00-report-prereqs.t @@ -0,0 +1,183 @@ +#!perl + +use strict; +use warnings; + +# This test was generated by Dist::Zilla::Plugin::Test::ReportPrereqs 0.025 + +use Test::More tests => 1; + +use ExtUtils::MakeMaker; +use File::Spec; + +# from $version::LAX +my $lax_version_re = + qr/(?: undef | (?: (?:[0-9]+) (?: \. | (?:\.[0-9]+) (?:_[0-9]+)? )? + | + (?:\.[0-9]+) (?:_[0-9]+)? + ) | (?: + v (?:[0-9]+) (?: (?:\.[0-9]+)+ (?:_[0-9]+)? )? + | + (?:[0-9]+)? (?:\.[0-9]+){2,} (?:_[0-9]+)? + ) + )/x; + +# hide optional CPAN::Meta modules from prereq scanner +# and check if they are available +my $cpan_meta = "CPAN::Meta"; +my $cpan_meta_pre = "CPAN::Meta::Prereqs"; +my $HAS_CPAN_META = eval "require $cpan_meta; $cpan_meta->VERSION('2.120900')" && eval "require $cpan_meta_pre"; ## no critic + +# Verify requirements? +my $DO_VERIFY_PREREQS = 1; + +sub _max { + my $max = shift; + $max = ( $_ > $max ) ? $_ : $max for @_; + return $max; +} + +sub _merge_prereqs { + my ($collector, $prereqs) = @_; + + # CPAN::Meta::Prereqs object + if (ref $collector eq $cpan_meta_pre) { + return $collector->with_merged_prereqs( + CPAN::Meta::Prereqs->new( $prereqs ) + ); + } + + # Raw hashrefs + for my $phase ( keys %$prereqs ) { + for my $type ( keys %{ $prereqs->{$phase} } ) { + for my $module ( keys %{ $prereqs->{$phase}{$type} } ) { + $collector->{$phase}{$type}{$module} = $prereqs->{$phase}{$type}{$module}; + } + } + } + + return $collector; +} + +my @include = qw( + +); + +my @exclude = qw( + +); + +# Add static prereqs to the included modules list +my $static_prereqs = do 't/00-report-prereqs.dd'; + +# Merge all prereqs (either with ::Prereqs or a hashref) +my $full_prereqs = _merge_prereqs( + ( $HAS_CPAN_META ? $cpan_meta_pre->new : {} ), + $static_prereqs +); + +# Add dynamic prereqs to the included modules list (if we can) +my ($source) = grep { -f } 'MYMETA.json', 'MYMETA.yml'; +if ( $source && $HAS_CPAN_META + && (my $meta = eval { CPAN::Meta->load_file($source) } ) +) { + $full_prereqs = _merge_prereqs($full_prereqs, $meta->prereqs); +} +else { + $source = 'static metadata'; +} + +my @full_reports; +my @dep_errors; +my $req_hash = $HAS_CPAN_META ? $full_prereqs->as_string_hash : $full_prereqs; + +# Add static includes into a fake section +for my $mod (@include) { + $req_hash->{other}{modules}{$mod} = 0; +} + +for my $phase ( qw(configure build test runtime develop other) ) { + next unless $req_hash->{$phase}; + next if ($phase eq 'develop' and not $ENV{AUTHOR_TESTING}); + + for my $type ( qw(requires recommends suggests conflicts modules) ) { + next unless $req_hash->{$phase}{$type}; + + my $title = ucfirst($phase).' '.ucfirst($type); + my @reports = [qw/Module Want Have/]; + + for my $mod ( sort keys %{ $req_hash->{$phase}{$type} } ) { + next if $mod eq 'perl'; + next if grep { $_ eq $mod } @exclude; + + my $file = $mod; + $file =~ s{::}{/}g; + $file .= ".pm"; + my ($prefix) = grep { -e File::Spec->catfile($_, $file) } @INC; + + my $want = $req_hash->{$phase}{$type}{$mod}; + $want = "undef" unless defined $want; + $want = "any" if !$want && $want == 0; + + my $req_string = $want eq 'any' ? 'any version required' : "version '$want' required"; + + if ($prefix) { + my $have = MM->parse_version( File::Spec->catfile($prefix, $file) ); + $have = "undef" unless defined $have; + push @reports, [$mod, $want, $have]; + + if ( $DO_VERIFY_PREREQS && $HAS_CPAN_META && $type eq 'requires' ) { + if ( $have !~ /\A$lax_version_re\z/ ) { + push @dep_errors, "$mod version '$have' cannot be parsed ($req_string)"; + } + elsif ( ! $full_prereqs->requirements_for( $phase, $type )->accepts_module( $mod => $have ) ) { + push @dep_errors, "$mod version '$have' is not in required range '$want'"; + } + } + } + else { + push @reports, [$mod, $want, "missing"]; + + if ( $DO_VERIFY_PREREQS && $type eq 'requires' ) { + push @dep_errors, "$mod is not installed ($req_string)"; + } + } + } + + if ( @reports ) { + push @full_reports, "=== $title ===\n\n"; + + my $ml = _max( map { length $_->[0] } @reports ); + my $wl = _max( map { length $_->[1] } @reports ); + my $hl = _max( map { length $_->[2] } @reports ); + + if ($type eq 'modules') { + splice @reports, 1, 0, ["-" x $ml, "", "-" x $hl]; + push @full_reports, map { sprintf(" %*s %*s\n", -$ml, $_->[0], $hl, $_->[2]) } @reports; + } + else { + splice @reports, 1, 0, ["-" x $ml, "-" x $wl, "-" x $hl]; + push @full_reports, map { sprintf(" %*s %*s %*s\n", -$ml, $_->[0], $wl, $_->[1], $hl, $_->[2]) } @reports; + } + + push @full_reports, "\n"; + } + } +} + +if ( @full_reports ) { + diag "\nVersions for all modules listed in $source (including optional ones):\n\n", @full_reports; +} + +if ( @dep_errors ) { + diag join("\n", + "\n*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING ***\n", + "The following REQUIRED prerequisites were not satisfied:\n", + @dep_errors, + "\n" + ); +} + +pass; + +# vim: ts=4 sts=4 sw=4 et: diff --git a/t/01-universal-laws.t b/t/01-universal-laws.t new file mode 100644 index 0000000..4555fc5 --- /dev/null +++ b/t/01-universal-laws.t @@ -0,0 +1,90 @@ +#!perl + +use warnings; +use strict; + +use Test::More; + +use Acme::Test::LogicalEquivalence qw(is_logically_equivalent); + +note "Let's see if the universe still makes sense..."; + +note 'Identity laws'; +is_logically_equivalent 1, + sub { $a && 1 }, + sub { $a }; +is_logically_equivalent 1, + sub { $a || 0 }, + sub { $a }; + +note 'Domination laws'; +is_logically_equivalent 1, + sub { $a || 1 }, + sub { 1 }; +is_logically_equivalent 1, + sub { $a && 0 }, + sub { 0 }; + +note 'Idempotent laws'; +is_logically_equivalent 1, + sub { $a && $a }, + sub { $a }; +is_logically_equivalent 1, + sub { $a || $a }, + sub { $a }; + +note 'Double negation law'; +is_logically_equivalent 1, + sub { !!$a }, + sub { $a }; + +note 'Commutative laws'; +is_logically_equivalent 2, + sub { $a || $b }, + sub { $b || $a }; +is_logically_equivalent 2, + sub { $a && $b }, + sub { $b && $a }; + +note 'Associative laws'; +is_logically_equivalent 3, + sub { ($_[0] || $_[1]) || $_[2] }, + sub { $_[0] || ($_[1] || $_[2]) }; +is_logically_equivalent 3, + sub { ($_[0] && $_[1]) && $_[2] }, + sub { $_[0] && ($_[1] && $_[2]) }; + +note 'Distributive laws'; +is_logically_equivalent 3, + sub { $_[0] || ($_[1] && $_[2]) }, + sub { ($_[0] || $_[1]) && ($_[0] || $_[2]) }; +is_logically_equivalent 3, + sub { $_[0] && ($_[1] || $_[2]) }, + sub { ($_[0] && $_[1]) || ($_[0] && $_[2]) }; + +note 'De Morgan\'s laws'; +is_logically_equivalent 2, + sub { !($a && $b) }, + sub { !$a || !$b }; +is_logically_equivalent 2, + sub { !($a || $b) }, + sub { !$a && !$b }; + +note 'Absorption laws'; +is_logically_equivalent 2, + sub { $a || ($a && $b) }, + sub { $a }; +is_logically_equivalent 2, + sub { $a && ($a || $b) }, + sub { $a }; + +note 'Negation laws'; +is_logically_equivalent 1, + sub { $a || !$a }, + sub { 1 }; +is_logically_equivalent 1, + sub { $a && !$a }, + sub { 0 }; + +done_testing; + diff --git a/xt/author/clean-namespaces.t b/xt/author/clean-namespaces.t new file mode 100644 index 0000000..36387da --- /dev/null +++ b/xt/author/clean-namespaces.t @@ -0,0 +1,11 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::CleanNamespaces 0.006 + +use Test::More 0.94; +use Test::CleanNamespaces 0.15; + +subtest all_namespaces_clean => sub { all_namespaces_clean() }; + +done_testing; diff --git a/xt/author/critic.t b/xt/author/critic.t new file mode 100644 index 0000000..d5b4c96 --- /dev/null +++ b/xt/author/critic.t @@ -0,0 +1,12 @@ +#!perl + +use strict; +use warnings; + +use Test::More; +use English qw(-no_match_vars); + +eval "use Test::Perl::Critic"; +plan skip_all => 'Test::Perl::Critic required to criticise code' if $@; +Test::Perl::Critic->import( -profile => "perlcritic.rc" ) if -e "perlcritic.rc"; +all_critic_ok(); diff --git a/xt/author/eol.t b/xt/author/eol.t new file mode 100644 index 0000000..e119f46 --- /dev/null +++ b/xt/author/eol.t @@ -0,0 +1,30 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::EOL 0.19 + +use Test::More 0.88; +use Test::EOL; + +my @files = ( + 'bin/test-logical-equivalence', + 'lib/Acme/Test/LogicalEquivalence.pm', + 't/00-compile.t', + 't/00-report-prereqs.dd', + 't/00-report-prereqs.t', + 't/01-universal-laws.t', + 'xt/author/clean-namespaces.t', + 'xt/author/critic.t', + 'xt/author/eol.t', + 'xt/author/no-tabs.t', + 'xt/author/pod-coverage.t', + 'xt/author/pod-no404s.t', + 'xt/author/pod-syntax.t', + 'xt/author/portability.t', + 'xt/release/cpan-changes.t', + 'xt/release/distmeta.t', + 'xt/release/minimum-version.t' +); + +eol_unix_ok($_, { trailing_whitespace => 1 }) foreach @files; +done_testing; diff --git a/xt/author/no-tabs.t b/xt/author/no-tabs.t new file mode 100644 index 0000000..40fe675 --- /dev/null +++ b/xt/author/no-tabs.t @@ -0,0 +1,30 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::NoTabs 0.15 + +use Test::More 0.88; +use Test::NoTabs; + +my @files = ( + 'bin/test-logical-equivalence', + 'lib/Acme/Test/LogicalEquivalence.pm', + 't/00-compile.t', + 't/00-report-prereqs.dd', + 't/00-report-prereqs.t', + 't/01-universal-laws.t', + 'xt/author/clean-namespaces.t', + 'xt/author/critic.t', + 'xt/author/eol.t', + 'xt/author/no-tabs.t', + 'xt/author/pod-coverage.t', + 'xt/author/pod-no404s.t', + 'xt/author/pod-syntax.t', + 'xt/author/portability.t', + 'xt/release/cpan-changes.t', + 'xt/release/distmeta.t', + 'xt/release/minimum-version.t' +); + +notabs_ok($_) foreach @files; +done_testing; diff --git a/xt/author/pod-coverage.t b/xt/author/pod-coverage.t new file mode 100644 index 0000000..66b3b64 --- /dev/null +++ b/xt/author/pod-coverage.t @@ -0,0 +1,7 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::PodCoverageTests. + +use Test::Pod::Coverage 1.08; +use Pod::Coverage::TrustPod; + +all_pod_coverage_ok({ coverage_class => 'Pod::Coverage::TrustPod' }); diff --git a/xt/author/pod-no404s.t b/xt/author/pod-no404s.t new file mode 100644 index 0000000..eb9760c --- /dev/null +++ b/xt/author/pod-no404s.t @@ -0,0 +1,21 @@ +#!perl + +use strict; +use warnings; +use Test::More; + +foreach my $env_skip ( qw( + SKIP_POD_NO404S + AUTOMATED_TESTING +) ){ + plan skip_all => "\$ENV{$env_skip} is set, skipping" + if $ENV{$env_skip}; +} + +eval "use Test::Pod::No404s"; +if ( $@ ) { + plan skip_all => 'Test::Pod::No404s required for testing POD'; +} +else { + all_pod_files_ok(); +} diff --git a/xt/author/pod-syntax.t b/xt/author/pod-syntax.t new file mode 100644 index 0000000..e563e5d --- /dev/null +++ b/xt/author/pod-syntax.t @@ -0,0 +1,7 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests. +use strict; use warnings; +use Test::More; +use Test::Pod 1.41; + +all_pod_files_ok(); diff --git a/xt/author/portability.t b/xt/author/portability.t new file mode 100644 index 0000000..c531252 --- /dev/null +++ b/xt/author/portability.t @@ -0,0 +1,10 @@ +use strict; +use warnings; + +use Test::More; + +eval 'use Test::Portability::Files'; +plan skip_all => 'Test::Portability::Files required for testing portability' + if $@; + +run_tests(); diff --git a/xt/release/cpan-changes.t b/xt/release/cpan-changes.t new file mode 100644 index 0000000..286005a --- /dev/null +++ b/xt/release/cpan-changes.t @@ -0,0 +1,10 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::CPAN::Changes 0.012 + +use Test::More 0.96 tests => 1; +use Test::CPAN::Changes; +subtest 'changes_ok' => sub { + changes_file_ok('Changes'); +}; diff --git a/xt/release/distmeta.t b/xt/release/distmeta.t new file mode 100644 index 0000000..c2280dc --- /dev/null +++ b/xt/release/distmeta.t @@ -0,0 +1,6 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::MetaTests. + +use Test::CPAN::Meta; + +meta_yaml_ok(); diff --git a/xt/release/minimum-version.t b/xt/release/minimum-version.t new file mode 100644 index 0000000..ff71971 --- /dev/null +++ b/xt/release/minimum-version.t @@ -0,0 +1,8 @@ +#!perl + +use Test::More; + +eval "use Test::MinimumVersion"; +plan skip_all => "Test::MinimumVersion required for testing minimum versions" + if $@; +all_minimum_version_ok( qq{5.10.1} );