File: 022_attribute_duplication.t

package info (click to toggle)
libclass-mop-perl 0.36-1
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 552 kB
  • ctags: 209
  • sloc: perl: 6,157; makefile: 46
file content (59 lines) | stat: -rw-r--r-- 1,946 bytes parent folder | download
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
#!/usr/bin/perl

use strict;
use warnings;

use Test::More tests => 17;

BEGIN {
    use_ok('Class::MOP');
}

=pod

This tests that when an attribute of the same name
is added to a class, that it will remove the old
one first.

=cut

{
    package Foo;
    use metaclass;
    
    Foo->meta->add_attribute('bar' => 
        reader => 'get_bar',
        writer => 'set_bar',
    );
    
    ::can_ok('Foo', 'get_bar');
    ::can_ok('Foo', 'set_bar');    
    ::ok(Foo->meta->has_attribute('bar'), '... Foo has the attribute bar');
    
    my $bar_attr = Foo->meta->get_attribute('bar');
    
    ::is($bar_attr->reader, 'get_bar', '... the bar attribute has the reader get_bar');
    ::is($bar_attr->writer, 'set_bar', '... the bar attribute has the writer set_bar');    
    ::is($bar_attr->associated_class, Foo->meta, '... and the bar attribute is associated with Foo->meta');
    
    Foo->meta->add_attribute('bar' => 
        reader => 'assign_bar'
    );    

    ::ok(!Foo->can('get_bar'), '... Foo no longer has the get_bar method');
    ::ok(!Foo->can('set_bar'), '... Foo no longer has the set_bar method');    
    ::can_ok('Foo', 'assign_bar');    
    ::ok(Foo->meta->has_attribute('bar'), '... Foo still has the attribute bar');
    
    my $bar_attr2 = Foo->meta->get_attribute('bar');
    
    ::isnt($bar_attr, $bar_attr2, '... this is a new bar attribute');
    ::isnt($bar_attr->associated_class, Foo->meta, '... and the old bar attribute is no longer associated with Foo->meta');    
    
    ::is($bar_attr2->associated_class, Foo->meta, '... and the new bar attribute *is* associated with Foo->meta');    
    
    ::isnt($bar_attr2->reader, 'get_bar', '... the bar attribute no longer has the reader get_bar');
    ::isnt($bar_attr2->reader, 'set_bar', '... the bar attribute no longer has the reader set_bar');    
    ::is($bar_attr2->reader, 'assign_bar', '... the bar attribute now has the reader assign_bar');    
}