[gitmo/Moose.git] / t / cmop / attributes.t

use strict;
use warnings;

use Test::More;
use Test::Fatal;

use Class::MOP;

my $FOO_ATTR = Class::MOP::Attribute->new('$foo');
my $BAR_ATTR = Class::MOP::Attribute->new('$bar' => (
    accessor => 'bar'
));
my $BAZ_ATTR = Class::MOP::Attribute->new('$baz' => (
    reader => 'get_baz',
    writer => 'set_baz',
));

my $BAR_ATTR_2 = Class::MOP::Attribute->new('$bar');

my $FOO_ATTR_2 = Class::MOP::Attribute->new('$foo' => (
    accessor => 'foo',
    builder => 'build_foo'
));

is($FOO_ATTR->name, '$foo', '... got the attributes name correctly');
is($BAR_ATTR->name, '$bar', '... got the attributes name correctly');
is($BAZ_ATTR->name, '$baz', '... got the attributes name correctly');

{
    package Foo;
    use metaclass;

    my $meta = Foo->meta;
    ::is( ::exception {
        $meta->add_attribute($FOO_ATTR);
    }, undef, '... we added an attribute to Foo successfully' );
    ::ok($meta->has_attribute('$foo'), '... Foo has $foo attribute');
    ::is($meta->get_attribute('$foo'), $FOO_ATTR, '... got the right attribute back for Foo');

    ::ok(!$meta->has_method('foo'), '... no accessor created');

    ::is( ::exception {
        $meta->add_attribute($BAR_ATTR_2);
    }, undef, '... we added an attribute to Foo successfully' );
    ::ok($meta->has_attribute('$bar'), '... Foo has $bar attribute');
    ::is($meta->get_attribute('$bar'), $BAR_ATTR_2, '... got the right attribute back for Foo');

    ::ok(!$meta->has_method('bar'), '... no accessor created');
}
{
    package Bar;
    our @ISA = ('Foo');

    my $meta = Bar->meta;
    ::is( ::exception {
        $meta->add_attribute($BAR_ATTR);
    }, undef, '... we added an attribute to Bar successfully' );
    ::ok($meta->has_attribute('$bar'), '... Bar has $bar attribute');
    ::is($meta->get_attribute('$bar'), $BAR_ATTR, '... got the right attribute back for Bar');

    my $attr = $meta->get_attribute('$bar');
    ::is($attr->get_read_method,  'bar', '... got the right read method for Bar');
    ::is($attr->get_write_method, 'bar', '... got the right write method for Bar');

    ::ok($meta->has_method('bar'), '... an accessor has been created');
    ::isa_ok($meta->get_method('bar'), 'Class::MOP::Method::Accessor');
}
{
    package Baz;
    our @ISA = ('Bar');

    my $meta = Baz->meta;
    ::is( ::exception {
        $meta->add_attribute($BAZ_ATTR);
    }, undef, '... we added an attribute to Baz successfully' );
    ::ok($meta->has_attribute('$baz'), '... Baz has $baz attribute');
    ::is($meta->get_attribute('$baz'), $BAZ_ATTR, '... got the right attribute back for Baz');

    my $attr = $meta->get_attribute('$baz');
    ::is($attr->get_read_method,  'get_baz', '... got the right read method for Baz');
    ::is($attr->get_write_method, 'set_baz', '... got the right write method for Baz');

    ::ok($meta->has_method('get_baz'), '... a reader has been created');
    ::ok($meta->has_method('set_baz'), '... a writer has been created');

    ::isa_ok($meta->get_method('get_baz'), 'Class::MOP::Method::Accessor');
    ::isa_ok($meta->get_method('set_baz'), 'Class::MOP::Method::Accessor');
}

{
    package Foo2;
    use metaclass;

    my $meta = Foo2->meta;
    $meta->add_attribute(
        Class::MOP::Attribute->new( '$foo2' => ( reader => 'foo2' ) ) );

    ::ok( $meta->has_method('foo2'), '... a reader has been created' );

    my $attr = $meta->get_attribute('$foo2');
    ::is( $attr->get_read_method, 'foo2',
        '... got the right read method for Foo2' );
    ::is( $attr->get_write_method, undef,
        '... got undef for the writer with a read-only attribute in Foo2' );
}

{
    my $meta = Baz->meta;
    isa_ok($meta, 'Class::MOP::Class');

    is($meta->find_attribute_by_name('$bar'), $BAR_ATTR, '... got the right attribute for "bar"');
    is($meta->find_attribute_by_name('$baz'), $BAZ_ATTR, '... got the right attribute for "baz"');
    is($meta->find_attribute_by_name('$foo'), $FOO_ATTR, '... got the right attribute for "foo"');

    is_deeply(
        [ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
        [
            $BAR_ATTR,
            $BAZ_ATTR,
            $FOO_ATTR,
        ],
        '... got the right list of applicable attributes for Baz');

    is_deeply(
        [ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
        [ Bar->meta, Baz->meta, Foo->meta ],
        '... got the right list of associated classes from the applicable attributes for Baz');

    my $attr;
    is( exception {
        $attr = $meta->remove_attribute('$baz');
    }, undef, '... removed the $baz attribute successfully' );
    is($attr, $BAZ_ATTR, '... got the right attribute back for Baz');

    ok(!$meta->has_attribute('$baz'), '... Baz no longer has $baz attribute');
    is($meta->get_attribute('$baz'), undef, '... Baz no longer has $baz attribute');

    ok(!$meta->has_method('get_baz'), '... a reader has been removed');
    ok(!$meta->has_method('set_baz'), '... a writer has been removed');

    is_deeply(
        [ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
        [
            $BAR_ATTR,
            $FOO_ATTR,
        ],
        '... got the right list of applicable attributes for Baz');

    is_deeply(
        [ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
        [ Bar->meta, Foo->meta ],
        '... got the right list of associated classes from the applicable attributes for Baz');

     {
         my $attr;
         is( exception {
             $attr = Bar->meta->remove_attribute('$bar');
         }, undef, '... removed the $bar attribute successfully' );
         is($attr, $BAR_ATTR, '... got the right attribute back for Bar');

         ok(!Bar->meta->has_attribute('$bar'), '... Bar no longer has $bar attribute');

         ok(!Bar->meta->has_method('bar'), '... a accessor has been removed');
     }

     is_deeply(
         [ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
         [
             $BAR_ATTR_2,
             $FOO_ATTR,
         ],
         '... got the right list of applicable attributes for Baz');

     is_deeply(
         [ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
         [ Foo->meta, Foo->meta ],
         '... got the right list of associated classes from the applicable attributes for Baz');

    # remove attribute which is not there
    my $val;
    is( exception {
        $val = $meta->remove_attribute('$blammo');
    }, undef, '... attempted to remove the non-existent $blammo attribute' );
    is($val, undef, '... got the right value back (undef)');

}

{
    package Buzz;
    use metaclass;
    use Scalar::Util qw/blessed/;

    my $meta = Buzz->meta;
    ::is( ::exception {
        $meta->add_attribute($FOO_ATTR_2);
    }, undef, '... we added an attribute to Buzz successfully' );

    ::is( ::exception {
        $meta->add_attribute(
            Class::MOP::Attribute->new(
                 '$bar' => (
                            accessor  => 'bar',
                            predicate => 'has_bar',
                            clearer   => 'clear_bar',
                           )
                )
        );
    }, undef, '... we added an attribute to Buzz successfully' );

    ::is( ::exception {
        $meta->add_attribute(
            Class::MOP::Attribute->new(
                 '$bah' => (
                            accessor  => 'bah',
                            predicate => 'has_bah',
                            clearer   => 'clear_bah',
                            default   => 'BAH',
                           )
                )
        );
    }, undef, '... we added an attribute to Buzz successfully' );

    ::is( ::exception {
        $meta->add_method(build_foo => sub{ blessed shift; });
    }, undef, '... we added a method to Buzz successfully' );
}


for(1 .. 2){
  my $buzz;
  ::is( ::exception { $buzz = Buzz->meta->new_object }, undef, '...Buzz instantiated successfully' );
  ::is($buzz->foo, 'Buzz', '...foo builder works as expected');
  ::ok(!$buzz->has_bar, '...bar is not set');
  ::is($buzz->bar, undef, '...bar returns undef');
  ::ok(!$buzz->has_bar, '...bar was not autovivified');

  $buzz->bar(undef);
  ::ok($buzz->has_bar, '...bar is set');
  ::is($buzz->bar, undef, '...bar is undef');
  $buzz->clear_bar;
  ::ok(!$buzz->has_bar, '...bar is no longerset');

  my $buzz2;
  ::is( ::exception { $buzz2 = Buzz->meta->new_object('$bar' => undef) }, undef, '...Buzz instantiated successfully' );
  ::ok($buzz2->has_bar, '...bar is set');
  ::is($buzz2->bar, undef, '...bar is undef');

  my $buzz3;
  ::is( ::exception { $buzz3 = Buzz->meta->new_object }, undef, '...Buzz instantiated successfully' );
  ::ok($buzz3->has_bah, '...bah is set');
  ::is($buzz3->bah, 'BAH', '...bah returns "BAH" ');

  my $buzz4;
  ::is( ::exception { $buzz4 = Buzz->meta->new_object('$bah' => undef) }, undef, '...Buzz instantiated successfully' );
  ::ok($buzz4->has_bah, '...bah is set');
  ::is($buzz4->bah, undef, '...bah is undef');

  Buzz->meta->make_immutable();
}

done_testing;
Commit	Line	Data
38bf2a25	1	use strict;
	2	use warnings;
	3
	4	use Test::More;
	5	use Test::Fatal;
	6
	7	use Class::MOP;
	8
	9	my $FOO_ATTR = Class::MOP::Attribute->new('$foo');
	10	my $BAR_ATTR = Class::MOP::Attribute->new('$bar' => (
	11	accessor => 'bar'
	12	));
	13	my $BAZ_ATTR = Class::MOP::Attribute->new('$baz' => (
	14	reader => 'get_baz',
	15	writer => 'set_baz',
	16	));
	17
	18	my $BAR_ATTR_2 = Class::MOP::Attribute->new('$bar');
	19
	20	my $FOO_ATTR_2 = Class::MOP::Attribute->new('$foo' => (
	21	accessor => 'foo',
	22	builder => 'build_foo'
	23	));
	24
	25	is($FOO_ATTR->name, '$foo', '... got the attributes name correctly');
	26	is($BAR_ATTR->name, '$bar', '... got the attributes name correctly');
	27	is($BAZ_ATTR->name, '$baz', '... got the attributes name correctly');
	28
	29	{
	30	package Foo;
	31	use metaclass;
	32
	33	my $meta = Foo->meta;
	34	::is( ::exception {
	35	$meta->add_attribute($FOO_ATTR);
	36	}, undef, '... we added an attribute to Foo successfully' );
	37	::ok($meta->has_attribute('$foo'), '... Foo has $foo attribute');
	38	::is($meta->get_attribute('$foo'), $FOO_ATTR, '... got the right attribute back for Foo');
	39
	40	::ok(!$meta->has_method('foo'), '... no accessor created');
	41
	42	::is( ::exception {
	43	$meta->add_attribute($BAR_ATTR_2);
	44	}, undef, '... we added an attribute to Foo successfully' );
	45	::ok($meta->has_attribute('$bar'), '... Foo has $bar attribute');
	46	::is($meta->get_attribute('$bar'), $BAR_ATTR_2, '... got the right attribute back for Foo');
	47
	48	::ok(!$meta->has_method('bar'), '... no accessor created');
	49	}
	50	{
	51	package Bar;
	52	our @ISA = ('Foo');
	53
	54	my $meta = Bar->meta;
	55	::is( ::exception {
	56	$meta->add_attribute($BAR_ATTR);
	57	}, undef, '... we added an attribute to Bar successfully' );
	58	::ok($meta->has_attribute('$bar'), '... Bar has $bar attribute');
	59	::is($meta->get_attribute('$bar'), $BAR_ATTR, '... got the right attribute back for Bar');
	60
	61	my $attr = $meta->get_attribute('$bar');
	62	::is($attr->get_read_method, 'bar', '... got the right read method for Bar');
	63	::is($attr->get_write_method, 'bar', '... got the right write method for Bar');
	64
65	::ok($meta->has_method('bar'), '... an accessor has been created');
66	::isa_ok($meta->get_method('bar'), 'Class::MOP::Method::Accessor');
67	}
68	{
69	package Baz;
70	our @ISA = ('Bar');
71
72	my $meta = Baz->meta;
73	::is( ::exception {
74	$meta->add_attribute($BAZ_ATTR);
75	}, undef, '... we added an attribute to Baz successfully' );
76	::ok($meta->has_attribute('$baz'), '... Baz has $baz attribute');
77	::is($meta->get_attribute('$baz'), $BAZ_ATTR, '... got the right attribute back for Baz');
78
79	my $attr = $meta->get_attribute('$baz');
80	::is($attr->get_read_method, 'get_baz', '... got the right read method for Baz');
81	::is($attr->get_write_method, 'set_baz', '... got the right write method for Baz');
82
83	::ok($meta->has_method('get_baz'), '... a reader has been created');
84	::ok($meta->has_method('set_baz'), '... a writer has been created');
85
86	::isa_ok($meta->get_method('get_baz'), 'Class::MOP::Method::Accessor');
87	::isa_ok($meta->get_method('set_baz'), 'Class::MOP::Method::Accessor');
88	}
89
90	{
91	package Foo2;
92	use metaclass;
93
94	my $meta = Foo2->meta;
95	$meta->add_attribute(
96	Class::MOP::Attribute->new( '$foo2' => ( reader => 'foo2' ) ) );
97
98	::ok( $meta->has_method('foo2'), '... a reader has been created' );
99
100	my $attr = $meta->get_attribute('$foo2');
101	::is( $attr->get_read_method, 'foo2',
102	'... got the right read method for Foo2' );
103	::is( $attr->get_write_method, undef,
104	'... got undef for the writer with a read-only attribute in Foo2' );
105	}
106
107	{
108	my $meta = Baz->meta;
109	isa_ok($meta, 'Class::MOP::Class');
110
111	is($meta->find_attribute_by_name('$bar'), $BAR_ATTR, '... got the right attribute for "bar"');
112	is($meta->find_attribute_by_name('$baz'), $BAZ_ATTR, '... got the right attribute for "baz"');
113	is($meta->find_attribute_by_name('$foo'), $FOO_ATTR, '... got the right attribute for "foo"');
114
115	is_deeply(
116	[ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
117	[
118	$BAR_ATTR,
119	$BAZ_ATTR,
120	$FOO_ATTR,
121	],
122	'... got the right list of applicable attributes for Baz');
123
124	is_deeply(
125	[ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
126	[ Bar->meta, Baz->meta, Foo->meta ],
127	'... got the right list of associated classes from the applicable attributes for Baz');
128
129	my $attr;
130	is( exception {
131	$attr = $meta->remove_attribute('$baz');
132	}, undef, '... removed the $baz attribute successfully' );
133	is($attr, $BAZ_ATTR, '... got the right attribute back for Baz');
134
135	ok(!$meta->has_attribute('$baz'), '... Baz no longer has $baz attribute');
136	is($meta->get_attribute('$baz'), undef, '... Baz no longer has $baz attribute');
137
138	ok(!$meta->has_method('get_baz'), '... a reader has been removed');
139	ok(!$meta->has_method('set_baz'), '... a writer has been removed');
140
141	is_deeply(
142	[ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
143	[
144	$BAR_ATTR,
145	$FOO_ATTR,
146	],
147	'... got the right list of applicable attributes for Baz');
148
149	is_deeply(
150	[ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
151	[ Bar->meta, Foo->meta ],
152	'... got the right list of associated classes from the applicable attributes for Baz');
153
154	{
155	my $attr;
156	is( exception {
157	$attr = Bar->meta->remove_attribute('$bar');
158	}, undef, '... removed the $bar attribute successfully' );
159	is($attr, $BAR_ATTR, '... got the right attribute back for Bar');
160
161	ok(!Bar->meta->has_attribute('$bar'), '... Bar no longer has $bar attribute');
162
163	ok(!Bar->meta->has_method('bar'), '... a accessor has been removed');
164	}
165
166	is_deeply(
167	[ sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
168	[
169	$BAR_ATTR_2,
170	$FOO_ATTR,
171	],
172	'... got the right list of applicable attributes for Baz');
173
174	is_deeply(
175	[ map { $_->associated_class } sort { $a->name cmp $b->name } $meta->get_all_attributes() ],
176	[ Foo->meta, Foo->meta ],
177	'... got the right list of associated classes from the applicable attributes for Baz');
178
179	# remove attribute which is not there
180	my $val;
181	is( exception {
182	$val = $meta->remove_attribute('$blammo');
183	}, undef, '... attempted to remove the non-existent $blammo attribute' );
184	is($val, undef, '... got the right value back (undef)');
185
186	}
187
188	{
189	package Buzz;
190	use metaclass;
191	use Scalar::Util qw/blessed/;
192
193	my $meta = Buzz->meta;
194	::is( ::exception {
195	$meta->add_attribute($FOO_ATTR_2);
196	}, undef, '... we added an attribute to Buzz successfully' );
197
198	::is( ::exception {
199	$meta->add_attribute(
200	Class::MOP::Attribute->new(
201	'$bar' => (
202	accessor => 'bar',
203	predicate => 'has_bar',
204	clearer => 'clear_bar',
205	)
206	)
207	);
208	}, undef, '... we added an attribute to Buzz successfully' );
209
210	::is( ::exception {
211	$meta->add_attribute(
212	Class::MOP::Attribute->new(
213	'$bah' => (
214	accessor => 'bah',
215	predicate => 'has_bah',
216	clearer => 'clear_bah',
217	default => 'BAH',
218	)
219	)
220	);
221	}, undef, '... we added an attribute to Buzz successfully' );
222
223	::is( ::exception {
224	$meta->add_method(build_foo => sub{ blessed shift; });
225	}, undef, '... we added a method to Buzz successfully' );
226	}
227
228
229
230	for(1 .. 2){
231	my $buzz;
232	::is( ::exception { $buzz = Buzz->meta->new_object }, undef, '...Buzz instantiated successfully' );
233	::is($buzz->foo, 'Buzz', '...foo builder works as expected');
234	::ok(!$buzz->has_bar, '...bar is not set');
235	::is($buzz->bar, undef, '...bar returns undef');
236	::ok(!$buzz->has_bar, '...bar was not autovivified');
237
238	$buzz->bar(undef);
239	::ok($buzz->has_bar, '...bar is set');
240	::is($buzz->bar, undef, '...bar is undef');
241	$buzz->clear_bar;
242	::ok(!$buzz->has_bar, '...bar is no longerset');
243
244	my $buzz2;
245	::is( ::exception { $buzz2 = Buzz->meta->new_object('$bar' => undef) }, undef, '...Buzz instantiated successfully' );
246	::ok($buzz2->has_bar, '...bar is set');
247	::is($buzz2->bar, undef, '...bar is undef');
248
249	my $buzz3;
250	::is( ::exception { $buzz3 = Buzz->meta->new_object }, undef, '...Buzz instantiated successfully' );
251	::ok($buzz3->has_bah, '...bah is set');
252	::is($buzz3->bah, 'BAH', '...bah returns "BAH" ');
253
254	my $buzz4;
255	::is( ::exception { $buzz4 = Buzz->meta->new_object('$bah' => undef) }, undef, '...Buzz instantiated successfully' );
256	::ok($buzz4->has_bah, '...bah is set');
257	::is($buzz4->bah, undef, '...bah is undef');
258
259	Buzz->meta->make_immutable();
260	}
261
262	done_testing;