The Perl Toolchain Summit 2025 Needs You: You can help 🙏 Learn more

TOBYINK / Type-Tiny-2.007_006 / t / 20-modules / Type-Tiny-Intersection / basic.t 

            

              
—
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

              
=pod
=encoding utf-8
=head1 PURPOSE
Checks intersection type constraints work.
=head1 DEPENDENCIES
Uses the bundled BiggerLib.pm type library.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2013-2014, 2017-2025 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 lib qw( ./lib ./t/lib ../inc ./inc );
use Test::More;
use Test::Fatal;
use Test::TypeTiny;
use BiggerLib qw( :types );
use Type::Utils qw( intersection );
{ my $x; sub FooBarAndDoesQuux () { $x ||= intersection(FooBarAndDoesQuux => [FooBar, DoesQuux]) } }
isa_ok(
        FooBarAndDoesQuux,
        'Type::Tiny::Intersection',
        'FooBarAndDoesQuux',
);
isa_ok(
        FooBarAndDoesQuux->[0],
        'Type::Tiny::Class',
        'FooBarAndDoesQuux->[0]',
);
isa_ok(
        FooBarAndDoesQuux->[1],
        'Type::Tiny::Role',
        'FooBarAndDoesQuux->[1]',
);
is(
        FooBarAndDoesQuux."",
        'FooBar&DoesQuux',
        'stringification good',
);
my $something = bless [] => do {
        package Something;
        sub DOES {
                return 1 if $_[1] eq 'Quux';
                $_[0]->isa($_[0]);
        }
        __PACKAGE__;
};
should_fail("Foo::Bar"->new, FooBarAndDoesQuux);
should_pass("Foo::Baz"->new, FooBarAndDoesQuux);
should_fail($something, FooBarAndDoesQuux);
my $something_else = bless [] => do {
        package Something::Else;
        sub DOES {
                return 1 if $_[1] eq 'Else';
                $_[0]->isa($_[0]);
        }
        __PACKAGE__;
};
should_fail($something_else, FooBarAndDoesQuux);
should_fail("Foo::Bar", FooBarAndDoesQuux);
should_fail("Foo::Baz", FooBarAndDoesQuux);
require Types::Standard;
my $reftype_array = Types::Standard::Ref["ARRAY"];
{ my $x; sub NotherSect () { $x ||= intersection(NotherUnion => [FooBarAndDoesQuux, $reftype_array]) } }
is(
        scalar @{+NotherSect},
        3,
        "intersections don't get unnecessarily deep",
);
note NotherSect->inline_check('$X');
should_pass(bless([], "Foo::Baz"), NotherSect);
should_fail(bless({}, "Foo::Baz"), NotherSect);
my $SmallEven = SmallInteger & sub { $_ % 2 == 0 };
isa_ok($SmallEven, "Type::Tiny::Intersection");
ok(!$SmallEven->can_be_inlined, "not ($SmallEven)->can_be_inlined");
should_pass(2, $SmallEven);
should_fail(20, $SmallEven);
should_fail(3, $SmallEven);
isnt(
        exception { push @{ $SmallEven }, 'quux' },
        undef,
        'cannot push to overloaded arrayref'
);
done_testing;