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
|
=pod
=encoding utf-8
=head1 PURPOSE
Checks Type::Coercion::Union works.
=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 lib qw( ./lib ./t/lib ../inc ./inc );
use Test::More;
use Test::Fatal;
use Test::TypeTiny;
use Types::Standard -types;
use Type::Utils;
my $RoundedInteger = declare RoundedInteger => as Int;
$RoundedInteger->coercion->add_type_coercions(Num, 'int($_)')->freeze;
should_pass("4", $RoundedInteger);
should_fail("1.1", $RoundedInteger);
should_fail("xyz", $RoundedInteger);
my $String3 = declare String3 => as StrMatch[qr/^.{3}$/];
$String3->coercion->add_type_coercions(Str, 'substr("$_ ", 0, 3)')->freeze;
should_pass("xyz", $String3);
should_fail("x", $String3);
should_fail("wxyz", $String3);
my $Union1 = union Union1 => [$RoundedInteger, $String3];
should_pass("3.4", $Union1);
should_pass("30", $Union1);
should_fail("3.12", $Union1);
should_fail("wxyz", $Union1);
is(
$RoundedInteger->coerce("3.4"),
"3",
"RoundedInteger coerces from Num",
);
is(
$RoundedInteger->coerce("xyz"),
"xyz",
"RoundedInteger does not coerce from Str",
);
is(
$String3->coerce("30"),
"30 ",
"String3 coerces from Str",
);
my $arr = [];
is(
$String3->coerce($arr),
$arr,
"String3 does not coerce from ArrayRef",
);
ok(
$Union1->has_coercion,
"unions automatically have a coercion if their child constraints do",
);
note $Union1->coercion->inline_coercion('$X');
ok(
union([Str, ArrayRef]),
"unions do not automatically have a coercion if their child constraints do not",
);
is(
$Union1->coerce("4"),
"4",
"Union1 does not need to coerce an Int",
);
is(
$Union1->coerce("xyz"),
"xyz",
"Union1 does not need to coerce a String3",
);
is(
$Union1->coerce("3.1"),
"3.1",
"Union1 does not need to coerce a String3, even if it looks like a Num",
);
is(
$Union1->coerce("abcde"),
"abc",
"Union1 coerces Str -> String3",
);
is(
$Union1->coerce("3.123"),
"3",
"given the choice of two valid coercions, Union1 prefers RoundedInteger because it occurs sooner",
);
is(
$Union1->coerce($arr),
$arr,
"Union1 cannot coerce an arrayref",
);
like(
exception { $Union1->coercion->add_type_coercions(ArrayRef, q[ scalar(@$_) ]) },
qr/^Adding coercions to Type::Coercion::Union not currently supported/,
"Cannot add to Type::Tiny::Union's coercion",
);
done_testing;
|
