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|
=pod
=encoding utf-8
=head1 PURPOSE
Test L<Type::Utils> C<match_on_type> and C<compile_match_on_type> functions.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014 by Toby Inkster.
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
use strict;
use warnings;
use Test::More;
use Test::Fatal;
use Type::Utils qw( match_on_type compile_match_on_type );
use Types::Standard -types;
sub to_json;
*to_json = compile_match_on_type(
HashRef() => sub {
my $hash = shift;
'{ '
. (
join ", " =>
map { '"' . $_ . '" : ' . to_json( $hash->{$_} ) }
sort keys %$hash
) . ' }';
},
ArrayRef() => sub {
my $array = shift;
'[ ' . ( join ", " => map { to_json($_) } @$array ) . ' ]';
},
Num() => q {$_},
Str() => q { '"' . $_ . '"' },
Undef() => q {'null'},
ScalarRef() &+ sub { Bool->check($$_) } => q { $$_ ? 'true' : 'false' },
=> sub { die "$_ is not acceptable json type" },
);
is(
to_json({foo => 1, bar => 2, baz => [3 .. 5], quux => undef, xyzzy => \1 }),
'{ "bar" : 2, "baz" : [ 3, 4, 5 ], "foo" : 1, "quux" : null, "xyzzy" : true }',
'to_json using compile_match_on_type works',
);
sub to_json_2
{
return match_on_type $_[0] => (
HashRef() => sub {
my $hash = shift;
'{ '
. (
join ", " =>
map { '"' . $_ . '" : ' . to_json_2( $hash->{$_} ) }
sort keys %$hash
) . ' }';
},
ArrayRef() => sub {
my $array = shift;
'[ ' . ( join ", " => map { to_json_2($_) } @$array ) . ' ]';
},
Num() => q {$_},
Str() => q { '"' . $_ . '"' },
Undef() => q {'null'},
ScalarRef() &+ sub { Bool->check($$_) } => q { $$_ ? 'true' : 'false' },
=> sub { die "$_ is not acceptable json type" },
);
}
is(
to_json_2({foo => 1, bar => 2, baz => [3 .. 5], quux => undef, xyzzy => \1 }),
'{ "bar" : 2, "baz" : [ 3, 4, 5 ], "foo" : 1, "quux" : null, "xyzzy" : true }',
'to_json_2 using match_on_type works',
);
my $compiled1 = compile_match_on_type(
HashRef() => sub { 'HASH' },
ArrayRef() => sub { 'ARRAY' },
);
is(ref($compiled1), 'CODE', 'compile_match_on_type returns a coderef');
is($compiled1->({}), 'HASH', '... correct result');
is($compiled1->([]), 'ARRAY', '... correct result');
like(
exception { $compiled1->(42) },
qr/^No cases matched for Value "?42"?/,
'... correct exception',
);
if ($ENV{EXTENDED_TESTING})
{
require Benchmark;
my $iters = 5_000;
my $standard = Benchmark::timethis(
$iters,
'::to_json_2({foo => 1, bar => 2, baz => [3 .. 5], quux => undef})',
'standard',
'none',
);
diag "match_on_type: " . Benchmark::timestr($standard);
my $compiled = Benchmark::timethis(
$iters,
'::to_json({foo => 1, bar => 2, baz => [3 .. 5], quux => undef})',
'compiled',
'none',
);
diag "compile_match_on_type: " . Benchmark::timestr($compiled);
}
like(
exception {
match_on_type([], Int, sub { 44 });
},
qr/^No cases matched/,
'match_on_type with no match',
);
like(
exception {
compile_match_on_type(Int, sub { 44 })->([]);
},
qr/^No cases matched/,
'coderef compiled by compile_match_on_type with no match',
);
my $context;
MATCH_VOID: {
match_on_type([], ArrayRef, sub { $context = wantarray });
ok(!defined($context), 'match_on_type void context');
};
MATCH_SCALAR: {
my $x = match_on_type([], ArrayRef, sub { $context = wantarray });
ok(defined($context) && !$context, 'match_on_type scalar context');
};
MATCH_LIST: {
my @x = match_on_type([], ArrayRef, sub { $context = wantarray });
ok(defined($context) && $context, 'match_on_type list context');
};
my $compiled = compile_match_on_type(ArrayRef, sub { $context = wantarray });
COMPILE_VOID: {
$compiled->([]);
ok(!defined($context), 'compile_match_on_type void context');
};
COMPILE_SCALAR: {
my $x = $compiled->([]);
ok(defined($context) && !$context, 'compile_match_on_type scalar context');
};
COMPILE_LIST: {
my @x = $compiled->([]);
ok(defined($context) && $context, 'compile_match_on_type list context');
};
done_testing;
|
