6 use Test::More tests => 38;
12 use_ok('Moose::Util::TypeConstraints');
15 type Number => where { Scalar::Util::looks_like_number($_) };
17 => where { !ref($_) && !Number($_) }
18 => message { "This is not a string ($_)" };
24 subtype NaturalLessThanTen
27 => message { "The number '$_' is not less than 10" };
29 Moose::Util::TypeConstraints->export_type_constraints_as_functions();
31 ok(Number(5), '... this is a Num');
32 ok(!defined(Number('Foo')), '... this is not a Num');
34 my $number_tc = Moose::Util::TypeConstraints::find_type_constraint('Number');
35 is("$number_tc", 'Number', '... type constraint stringifies to name');
38 ok(String('Foo'), '... this is a Str');
39 ok(!defined(String(5)), '... this is not a Str');
41 ok(Natural(5), '... this is a Natural');
42 is(Natural(-5), undef, '... this is not a Natural');
43 is(Natural('Foo'), undef, '... this is not a Natural');
45 ok(NaturalLessThanTen(5), '... this is a NaturalLessThanTen');
46 is(NaturalLessThanTen(12), undef, '... this is not a NaturalLessThanTen');
47 is(NaturalLessThanTen(-5), undef, '... this is not a NaturalLessThanTen');
48 is(NaturalLessThanTen('Foo'), undef, '... this is not a NaturalLessThanTen');
52 my $negative = subtype Number => where { $_ < 0 };
53 ok(defined $negative, '... got a value back from negative');
54 isa_ok($negative, 'Moose::Meta::TypeConstraint');
56 ok($negative->check(-5), '... this is a negative number');
57 ok(!defined($negative->check(5)), '... this is not a negative number');
58 is($negative->check('Foo'), undef, '... this is not a negative number');
60 ok($negative->is_subtype_of('Number'), '... $negative is a subtype of Number');
61 ok(!$negative->is_subtype_of('String'), '... $negative is not a subtype of String');
63 # check some meta-details
65 my $natural_less_than_ten = find_type_constraint('NaturalLessThanTen');
66 isa_ok($natural_less_than_ten, 'Moose::Meta::TypeConstraint');
68 ok($natural_less_than_ten->is_subtype_of('Natural'), '... NaturalLessThanTen is subtype of Natural');
69 ok($natural_less_than_ten->is_subtype_of('Number'), '... NaturalLessThanTen is subtype of Number');
70 ok(!$natural_less_than_ten->is_subtype_of('String'), '... NaturalLessThanTen is not subtype of String');
72 ok($natural_less_than_ten->has_message, '... it has a message');
74 ok(!defined($natural_less_than_ten->validate(5)), '... validated successfully (no error)');
76 is($natural_less_than_ten->validate(15),
77 "The number '15' is not less than 10",
78 '... validated unsuccessfully (got error)');
80 my $natural = find_type_constraint('Natural');
81 isa_ok($natural, 'Moose::Meta::TypeConstraint');
83 ok($natural->is_subtype_of('Number'), '... Natural is a subtype of Number');
84 ok(!$natural->is_subtype_of('String'), '... Natural is not a subtype of String');
86 ok(!$natural->has_message, '... it does not have a message');
88 ok(!defined($natural->validate(5)), '... validated successfully (no error)');
90 is($natural->validate(-5),
91 "Validation failed for 'Natural' failed",
92 '... validated unsuccessfully (got error)');
94 my $string = find_type_constraint('String');
95 isa_ok($string, 'Moose::Meta::TypeConstraint');
97 ok($string->has_message, '... it does have a message');
99 ok(!defined($string->validate("Five")), '... validated successfully (no error)');
101 is($string->validate(5),
102 "This is not a string (5)",
103 '... validated unsuccessfully (got error)');
105 lives_ok { Moose::Meta::Attribute->new('bob', isa => 'Spong') }
106 'meta-attr construction ok even when type constraint utils loaded first';