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1 | #!/usr/bin/perl |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Test::More tests => 7; |
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7 | use Test::Exception; |
8 | |
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9 | use Moose::Util::TypeConstraints; |
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10 | |
11 | =pod |
12 | |
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13 | This tests demonstrates that Moose will not override |
14 | a preexisting type constraint of the same name when |
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15 | making constraints for a Moose-class. |
16 | |
17 | It also tests that an attribute which uses a 'Foo' for |
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18 | it's isa option will get the subtype Foo, and not a |
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19 | type representing the Foo moose class. |
20 | |
21 | =cut |
22 | |
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23 | BEGIN { |
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24 | # create this subtype first (in BEGIN) |
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25 | subtype Foo |
26 | => as 'Value' |
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27 | => where { $_ eq 'Foo' }; |
28 | } |
29 | |
30 | { # now seee if Moose will override it |
31 | package Foo; |
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32 | use Moose; |
33 | } |
34 | |
35 | my $foo_constraint = find_type_constraint('Foo'); |
36 | isa_ok($foo_constraint, 'Moose::Meta::TypeConstraint'); |
37 | |
38 | is($foo_constraint->parent->name, 'Value', '... got the Value subtype for Foo'); |
39 | |
40 | ok($foo_constraint->check('Foo'), '... my constraint passed correctly'); |
41 | ok(!$foo_constraint->check('Bar'), '... my constraint failed correctly'); |
42 | |
43 | { |
44 | package Bar; |
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45 | use Moose; |
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46 | |
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47 | has 'foo' => (is => 'rw', isa => 'Foo'); |
48 | } |
49 | |
50 | my $bar = Bar->new; |
51 | isa_ok($bar, 'Bar'); |
52 | |
53 | lives_ok { |
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54 | $bar->foo('Foo'); |
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55 | } '... checked the type constraint correctly'; |
56 | |
57 | dies_ok { |
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58 | $bar->foo(Foo->new); |
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59 | } '... checked the type constraint correctly'; |
60 | |
61 | |
62 | |