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1 | #!/usr/bin/perl |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | require q(./test.pl); plan(tests => 12); |
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7 | |
8 | { |
9 | |
10 | { |
11 | package Foo; |
12 | use strict; |
13 | use warnings; |
14 | use mro 'c3'; |
15 | sub new { bless {}, $_[0] } |
16 | sub bar { 'Foo::bar' } |
17 | } |
18 | |
19 | # call the submethod in the direct instance |
20 | |
21 | my $foo = Foo->new(); |
22 | isa_ok($foo, 'Foo'); |
23 | |
24 | can_ok($foo, 'bar'); |
25 | is($foo->bar(), 'Foo::bar', '... got the right return value'); |
26 | |
27 | # fail calling it from a subclass |
28 | |
29 | { |
30 | package Bar; |
31 | use strict; |
32 | use warnings; |
33 | use mro 'c3'; |
34 | our @ISA = ('Foo'); |
35 | } |
36 | |
37 | my $bar = Bar->new(); |
38 | isa_ok($bar, 'Bar'); |
39 | isa_ok($bar, 'Foo'); |
40 | |
41 | # test it working with with Sub::Name |
42 | SKIP: { |
43 | eval 'use Sub::Name'; |
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44 | skip("Sub::Name is required for this test", 3) if $@; |
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45 | |
46 | my $m = sub { (shift)->next::method() }; |
47 | Sub::Name::subname('Bar::bar', $m); |
48 | { |
49 | no strict 'refs'; |
50 | *{'Bar::bar'} = $m; |
51 | } |
52 | |
53 | can_ok($bar, 'bar'); |
54 | my $value = eval { $bar->bar() }; |
55 | ok(!$@, '... calling bar() succedded') || diag $@; |
56 | is($value, 'Foo::bar', '... got the right return value too'); |
57 | } |
58 | |
59 | # test it failing without Sub::Name |
60 | { |
61 | package Baz; |
62 | use strict; |
63 | use warnings; |
64 | use mro 'c3'; |
65 | our @ISA = ('Foo'); |
66 | } |
67 | |
68 | my $baz = Baz->new(); |
69 | isa_ok($baz, 'Baz'); |
70 | isa_ok($baz, 'Foo'); |
71 | |
72 | { |
73 | my $m = sub { (shift)->next::method() }; |
74 | { |
75 | no strict 'refs'; |
76 | *{'Baz::bar'} = $m; |
77 | } |
78 | |
79 | eval { $baz->bar() }; |
80 | ok($@, '... calling bar() with next::method failed') || diag $@; |
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81 | } |
82 | |
83 | # Test with non-existing class (used to segfault) |
84 | { |
85 | package Qux; |
86 | use mro; |
87 | sub foo { No::Such::Class->next::can } |
88 | } |
89 | |
90 | eval { Qux->foo() }; |
91 | is($@, '', "->next::can on non-existing package name"); |
92 | |
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93 | } |