1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241
|
=pod
=encoding utf-8
=head1 PURPOSE
Basic tests for B<ArrayLike> from L<Types::TypeTiny>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2019-2023 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 Test::TypeTiny;
use Types::TypeTiny qw( ArrayLike );
isa_ok(ArrayLike, 'Type::Tiny', 'ArrayLike');
is(ArrayLike->name, 'ArrayLike', 'ArrayLike has correct name');
is(ArrayLike->display_name, 'ArrayLike', 'ArrayLike has correct display_name');
is(ArrayLike->library, 'Types::TypeTiny', 'ArrayLike knows it is in the Types::TypeTiny library');
ok(Types::TypeTiny->has_type('ArrayLike'), 'Types::TypeTiny knows it has type ArrayLike');
ok(!ArrayLike->deprecated, 'ArrayLike is not deprecated');
ok(!ArrayLike->is_anon, 'ArrayLike is not anonymous');
ok(ArrayLike->can_be_inlined, 'ArrayLike can be inlined');
is(exception { ArrayLike->inline_check(q/$xyz/) }, undef, "Inlining ArrayLike doesn't throw an exception");
ok(!ArrayLike->has_coercion, "ArrayLike doesn't have a coercion");
ok(ArrayLike->is_parameterizable, "ArrayLike is parameterizable");
isnt(ArrayLike->type_default, undef, "ArrayLike has a type_default");
is_deeply(ArrayLike->type_default->(), [], "ArrayLike type_default is []");
#
# The @tests array is a list of triples:
#
# 1. Expected result - pass, fail, or xxxx (undefined).
# 2. A description of the value being tested.
# 3. The value being tested.
#
my @tests = (
fail => 'undef' => undef,
fail => 'false' => !!0,
fail => 'true' => !!1,
fail => 'zero' => 0,
fail => 'one' => 1,
fail => 'negative one' => -1,
fail => 'non integer' => 3.1416,
fail => 'empty string' => '',
fail => 'whitespace' => ' ',
fail => 'line break' => "\n",
fail => 'random string' => 'abc123',
fail => 'loaded package name' => 'Type::Tiny',
fail => 'unloaded package name' => 'This::Has::Probably::Not::Been::Loaded',
fail => 'a reference to undef' => do { my $x = undef; \$x },
fail => 'a reference to false' => do { my $x = !!0; \$x },
fail => 'a reference to true' => do { my $x = !!1; \$x },
fail => 'a reference to zero' => do { my $x = 0; \$x },
fail => 'a reference to one' => do { my $x = 1; \$x },
fail => 'a reference to empty string' => do { my $x = ''; \$x },
fail => 'a reference to random string' => do { my $x = 'abc123'; \$x },
fail => 'blessed scalarref' => bless(do { my $x = undef; \$x }, 'SomePkg'),
pass => 'empty arrayref' => [],
pass => 'arrayref with one zero' => [0],
pass => 'arrayref of integers' => [1..10],
pass => 'arrayref of numbers' => [1..10, 3.1416],
fail => 'blessed arrayref' => bless([], 'SomePkg'),
fail => 'empty hashref' => {},
fail => 'hashref' => { foo => 1 },
fail => 'blessed hashref' => bless({}, 'SomePkg'),
fail => 'coderef' => sub { 1 },
fail => 'blessed coderef' => bless(sub { 1 }, 'SomePkg'),
fail => 'glob' => do { no warnings 'once'; *SOMETHING },
fail => 'globref' => do { no warnings 'once'; my $x = *SOMETHING; \$x },
fail => 'blessed globref' => bless(do { no warnings 'once'; my $x = *SOMETHING; \$x }, 'SomePkg'),
fail => 'regexp' => qr/./,
fail => 'blessed regexp' => bless(qr/./, 'SomePkg'),
fail => 'filehandle' => do { open my $x, '<', $0 or die; $x },
fail => 'filehandle object' => do { require IO::File; 'IO::File'->new($0, 'r') },
fail => 'ref to scalarref' => do { my $x = undef; my $y = \$x; \$y },
fail => 'ref to arrayref' => do { my $x = []; \$x },
fail => 'ref to hashref' => do { my $x = {}; \$x },
fail => 'ref to coderef' => do { my $x = sub { 1 }; \$x },
fail => 'ref to blessed hashref' => do { my $x = bless({}, 'SomePkg'); \$x },
fail => 'object stringifying to ""' => do { package Local::OL::StringEmpty; use overload q[""] => sub { "" }; bless [] },
fail => 'object stringifying to "1"' => do { package Local::OL::StringOne; use overload q[""] => sub { "1" }; bless [] },
fail => 'object numifying to 0' => do { package Local::OL::NumZero; use overload q[0+] => sub { 0 }; bless [] },
fail => 'object numifying to 1' => do { package Local::OL::NumOne; use overload q[0+] => sub { 1 }; bless [] },
pass => 'object overloading arrayref' => do { package Local::OL::Array; use overload q[@{}] => sub { $_[0]{array} }; bless {array=>[]} },
fail => 'object overloading hashref' => do { package Local::OL::Hash; use overload q[%{}] => sub { $_[0][0] }; bless [{}] },
fail => 'object overloading coderef' => do { package Local::OL::Code; use overload q[&{}] => sub { $_[0][0] }; bless [sub { 1 }] },
#TESTS
);
while (@tests) {
my ($expect, $label, $value) = splice(@tests, 0 , 3);
if ($expect eq 'xxxx') {
note("UNDEFINED OUTCOME: $label");
}
elsif ($expect eq 'pass') {
should_pass($value, ArrayLike, ucfirst("$label should pass ArrayLike"));
}
elsif ($expect eq 'fail') {
should_fail($value, ArrayLike, ucfirst("$label should fail ArrayLike"));
}
else {
fail("expected '$expect'?!");
}
}
#
# Parameterizable
#
use Types::Standard ();
my $ArrayOfInt = ArrayLike[ Types::Standard::Int() ];
ok( $ArrayOfInt->can_be_inlined );
should_pass(
[1,2,3],
$ArrayOfInt,
);
should_pass(
bless({ array=>[1,2,3] }, 'Local::OL::Array'),
$ArrayOfInt,
);
should_fail(
[undef,2,3],
$ArrayOfInt,
);
should_fail(
bless({ array=>[undef,2,3] }, 'Local::OL::Array'),
$ArrayOfInt,
);
my $ArrayOfRounded = ArrayLike[
Types::Standard::Int()->plus_coercions(
Types::Standard::Num(), => q{ int($_) },
)
];
is_deeply(
$ArrayOfRounded->coerce([1.1, 2, 3]),
[1,2,3],
);
# Note that because of coercion, the object overloading @{}
# is now a plain old arrayref.
is_deeply(
$ArrayOfRounded->coerce(bless({ array=>[1.1,2,3] }, 'Local::OL::Array')),
[1,2,3],
);
is_deeply(
$ArrayOfRounded->coerce([1.1, undef, 3]),
[1.1,undef,3], # cannot be coerced, so returned unchanged
);
# can't use is_deeply because object doesn't overload eq
# but the idea is because the coercion fails, the original
# object gets returned unchanged
ok(
Scalar::Util::blessed( $ArrayOfRounded->coerce(bless({ array=>[1.1,undef,3] }, 'Local::OL::Array')) ),
);
#
# Tied arrays, and combining them with array-overloaded objects
#
{
package MaiTai::Array;
use Tie::Array;
our @ISA = 'Tie::Array';
sub TIEARRAY { bless { data => [] }, $_[0]; }
sub FETCH { $_[0]{data}[$_[1]]; }
sub FETCHSIZE { scalar @{ $_[0]{data} } }
sub STORE { $_[0]{data}[$_[1]] = $_[2]; }
sub STORESIZE { $#{ $_[0]{data} } = $_[1]-1; }
sub EXISTS { exists $_[0]{data}[$_[1]]; }
sub DELETE { delete $_[0]{data}[$_[1]]; }
##
package MaiObj::Array;
use overload '@{}' => sub {
my $obj = shift;
my @arr;
tie( @arr, 'MaiTai::Array' ) if $obj->{do_tie};
push @arr, @{ $obj->{items} };
return \@arr;
};
sub new {
my ( $class, $do_tie ) = ( shift, shift );
bless { do_tie => $do_tie, items => [ @_ ] }, $class;
}
}
{
my @arr; tie( @arr, 'MaiTai::Array' ); @arr = ( 1..10 );
should_pass( \@arr, $ArrayOfInt, 'tied array that should pass' );
}
{
my @arr; tie( @arr, 'MaiTai::Array' ); @arr = ( 'foo', 1 .. 10 );
should_fail( \@arr, $ArrayOfInt, 'tied array that should fail' );
}
{
my $obj = 'MaiObj::Array'->new( !!0, 1 .. 10 );
should_pass( $obj, $ArrayOfInt, 'overloaded object yielding regular array that should pass' );
}
{
my $obj = 'MaiObj::Array'->new( !!0, 'foo', 1 .. 10 );
should_fail( $obj, $ArrayOfInt, 'overloaded object yielding regular array that should fail' );
}
{
my $obj = 'MaiObj::Array'->new( !!1, 1 .. 10 );
should_pass( $obj, $ArrayOfInt, 'overloaded object yielding tied array that should pass' );
}
{
my $obj = 'MaiObj::Array'->new( !!1, 'foo', 1 .. 10 );
should_fail( $obj, $ArrayOfInt, 'overloaded object yielding tied array that should fail' );
}
done_testing;
|